AXIAL PISTON PUMP - J9V

AXIAL PISTON PUMP - J9V SALIENT DESIGN & CONSTRUCTION FEATURES DESCRIPTION : Variable volume, swash plate design axial piston pump for open loop circuits 28 bar continuous operating pressure Efficient flow & pressure controls SALIENT FEATURES : Compact design Low noise operation Good suction characteristics 2 separate case drain ports for horizontal & vertical mounting Easy to maintain Provision to adjust / set minimum & maximum flow SAE or ISO flange mounting option Port flanges with UNC or Metric threads Option for ports at side or rear Tapered roller bearings for long life High efficiency INDUSTRIAL APPLICATIONS : Metal working machinery such as presses, tube drawing etc. Aluminium die casting machinery Plastic injection and blow molding machinery Amusement park machinery Material handling machinery such as conveyors etc. Mining machinery such as crushers etc. Simulators Machine tools MOILE APPLICATIONS : Construction & earth moving machinery such as loaders & back hoes Rail road machinery such as track laying m/cs. Refuse trucks Mining machinery such as tunnel borers etc Road machinery such as asphalt pavers etc. Agriculture & forestry machinery such as harvesters & logging m/cs Material handling machinery such as cranes etc. Marine equipment such as steering gear etc. 1

AXIAL PISTON PUMP - J9V APPLICATION GUIDE LINES Mounting The J9V model Piston Pumps are designed for operating in any position so long as the Pump shaft is accurately aligned to the drive shaft. The concentricity of the Pump and Drive shaft is more critical if no flexible coupling is used between them. Shaft types The pumps are designed for in-line-drive only and no side loading on the shaft is permissible beyond the specific limits. Pumps are supplied with either keyed or splined shaft. Splined : The shaft splines are of flat root side fit type and a coupling confirming to class-5 side root fit as per SAE - J498C with hardness of 27-34 Rc must only be used to drive the pump. The permissible maximum misalignment is.6 mm (.2 in) TIR for foot mounted pump and.3 mm (.1 in) in case of flange mounted pump. The angular misalignment between the shaft splines and the coupling internal splines should be less than +/-.2 mm per mm diameter of the pump shaft. The shaft /coupling splines must be coated with a long lasting lubricant such as molybdenum di-sulphide grease. Keyed : These are supplied with matching Keys and in case replacement becomes necessary, use only high strength heat treated steel keys with hardness of 27-34 Rc. The key corners must be chamfered properly so that it locates snugly in the keyway. Inlet pressure Maintain inlet pressure within the limits shown below. Low inlet pressure (vacuum) may limit maximum pump speed and cause cavitation. Inlet pressure (min) =.8 bar(12 psi) Inlet pressure(max) = 3 bar(435 psi). DETERMINATION OF INLET PRESSURE AT DIFFERENT SPEEDS AND FLOW: 1.2 23 (1.6) Speed n/ nmax 1.1 1. 2 (1.4) 17 (1.2) 14.5 (1.) 13 (.9) Inlet Pressure P abs psi(bar).9.7.8.9 1. Displacement v / v max 12 (.8) The above graph helps in determining the output flow or the minimum inlet pressure required at the rated RPM. 2

AXIAL PISTON PUMP - J9V APPLICATION GUIDE LINES Case pressure The maximum permissible case pressure is 2 bar (3 psi) absolute and at the same time it must not exceed the inlet pressure by more than.5 bar (7 psi). The case drain piping to the reservoir should be such that the pump casing is full of oil at all times. If necessary use a check valve in (.3 bar / 5 psi spring) the drain line. The size of the case drain pipe should be of sufficient size to prevent development of back pressure of over 2 bar (3 psi) Pressure ratings Refer table, General Characteristics, page 19 for maximum (peak) and continuous pressure ratings against each displacement. Not all displacements within a given size operate under the same pressure limits. While selecting a suitable pump for a specific application, ensure that the connected load never exceeds this pressure. Definitions of the operating pressure limits appear below. System pressure is the differential pressure between the outlet and inlet ports. It is the prime operating variable affecting hydraulic unit s life. High system pressure, which results from high load, reduces product life. System pressure must remain at or below rated pressure during normal operation to achieve long life. Continuous working pressure is the average, regularly occurring operating pressure. Operating at or below this pressure should yield satisfactory product life. Maximum (peak) working pressure is the highest intermittent pressure allowed. Maximum machine load should never exceed this pressure. Speed ratings Refer table, General Characteristics, page 19 for maximum and limiting speeds against each displacement. Not all displacements within a given size operate under the same speed limits. Definitions of these speed limits appear below. Maximum speed is the maximum recommended operating speed at full displacement and 1bar abs. [ in Hg vac] inlet pressure. Operating at or below this speed should yield satisfactory product life. Limiting speed is the highest recommended operating speed at full power conditions. Operating at or beyond limiting speed requires positive inlet pressure and/or a reduction of pump outlet flow. Shaft loads These pumps have tapered roller bearings capable of accepting external radial and thrust loads. The external radial shaft load limits are a function of the load position, orientation, and the operating condition of the pump. The maximum allowable radial load (Fq) is based on the maximum torque (T) and the distance (L) from the mounting flanges to the load. Compute the radial loads using the formula given below. T = Fq L. Where L = distance from mounting flange to point of load. T = Maximum torque. Fq = Maximum radial load. Refer table General Characteristics on page 19 for maximum torque, maximum permissible axial and radial loads against desired displacement. 3

AXIAL PISTON PUMP - J9V APPLICATION GUIDE LINES Shaft load orientation: Fq 9 Fq CW 27 Fq Tout Tin Fq Axis of swashplate rotation L 15 18 Fq 21 Mounting flange Fluid connections The hoses / pipes used must be of adequate size matching to the port size on the pump to ensure free flow of oil and also of sufficient strength to withstand the pressures possible. A smaller size inlet pipe will not allow sufficient flow of oil into the pump at higher operating speeds. A smaller size outlet pipe will create back pressure and result in heat generation. flexible hoses are preferred and when rigid piping is used it must be ensured that it does not impose any strain on the pump port bock / fluid connections. Galvanised coating for the steel pipes is to be avoided, as in use, the coating can flake off and contaminate the oil. Hydraulic Fluid Oil in a hydraulic system performs the dual function of lubrication and transmission of power. It constitutes a vital factor in a hydraulic system, and careful selection of it should be made with the assistance of a reputable supplier. Proper selection of oil assures satisfactory life and operation of system components with particular emphasis on hydraulic pumps. Use a high quality, anti-wear, mineral based hydraulic fluid when the pressure exceeds 3psi (27 bar). The optimum viscosity must be between 16 and 36 mm²/s. Recommended fluids Petroleum base mineral oils containing additives for anti-foaming; anti-rusting, anti-oxidation and de-aeration are recommended. New generation synthetic oils with similar characteristics can also be used after ensuring their compatibility with material of seals (una-n / Nitrile). The seals and o-rings may need to be changed to ensure compatibility. The chart below illustrates the effects on pump life when using non standard fluids. Fluid type>> Mineral Oil Phosphate ester Polyol ester Water glycol MAX Pressure bar 35 21 21 21 Temperature Range Cavitation resistance C 2~6 1~5 Ø Ø Ø Percentage pump life compared to mineral oil 1 6 5 2 = Optimum Ø = acceptable but with reduced pump life 4

DRIVE M OTOR AXIAL PISTON PUMP - J9V APPLICATION GUIDE LINES DRAIN LINE RETURN LINE FILTER HEAT EXCHANGER REATHER FLUID LEVEL FLEXILE SECTION (HOSE) AFFEL h< 1 x Ød 8x d Ød SUCTION TUE END SHOULD E CUT OFF AT AN ANGLE OF 45 OR SHAPED LIKE AN OPEN FUNNEL. ON/OFF TO SUCTION LINE DR IVE MOTO R SHAFT IN HORIZONTAL AXIS D RI VE MOTO R TO SUCTION LINE SHAFT IN VERTICAL AXIS Pipe internal diameter must be more than the pump suction flange bore. The pipe/tube end of the suction line shall be machined at 45 or provide a funnel like outlet. Pipe bending shall be done to maximum possible radius. Suction line closer to the pump shall be by using a flexible hose. Pump Operation Rotation of the pump drive shaft causes the barrel, guide plate and pistons to rotate. The piston shoes are held against the swash plate face by the guide plate. The angle of the swash plate creates a reciprocating motion to each piston within the barrel. Inlet and outlet ports connect to a kidney slotted plate called port plate. As the piston moves out of the barrel, a vacuum is created and fluid is forced into the void by atmospheric pressure. The fluid moves with the barrel past the intake kidney slot. The motion of the piston reverses and fluid is pushed out of the barrel into the outlet port. Maintenance The design of the pump does not require any special preventive maintenance for itself as long as it is used within the specified operational limits of pressures / speed / temperature / viscosity and fluid cleanliness. 6

AXIAL PISTON PUMP - J9V CONTROLS The J9V model piston pumps are offered with a variety of control options that are designed for optimum performance of the pump in different types of applications. CONSTANT PRESSURE CONTROL (CP) This control maintains the pressure in a hydraulic circuit at a constant set value within the control range during pump operation irrespective of changing flow demands of the load on the pump. The pump supplies only that much volume of oil as required by the load. If the pressure in the circuit tends to raise above the set value, then the pump swash plate angle is proportionally reduced which in turn reduces the flow of oil to the load and thus preventing the pressure raise. In the starting condition when supply pressure is zero the control spring positions the swash plate at its maximum angle allowing the pump to supply the maximum volume of oil to the load in the circuit. As the pressure in circuit raises, the swash plate angle is progressively reduced by the control piston resulting in lesser oil flow to the circuit. It is further possible to restrict the minimum and maximum angles of the swash plate by adjustable set screws for limiting the pump flow to 5% of it s maximum rating. As it is possible to set the pressure control at a pressure higher than the maximum rated pressure of the pump it is recommended that an additional pressure relief vavle ( set to about 2 bar more than the maximum allowed control pressure) be used in the circuit. Also to ensure that the pressure control is not set for higher than the permissible value, help of a pressure gauge mounted on the pump outlet side be considered. CONSTANT PRESSURE CONTROL - REMOTELY SET (CPR) This is same as above Constant Pressure Control except that in this a remotely mounted Pressure relief Valve is used at port X as shown in the circuit. This along side for pressure setting of the pump. PRESSURE & FLOW CONTROL (CPF) - LOAD SENSING In addition to the constant pressure control this also maintains constant flow to the load. The pump flow is determined by an external orifice (not part of pump control block) fitted in the circuit between the pump and the load as long as the load pressure is less than the set pressure. The differential pressure at the external orifice is used to regulate the pump displacement to match the load requirement. The pressure drop across the orifice is maintained constant and there by achieving constant flow to the load. If the differential pressure across the orifice tends to increase then the swash plate is swivelled to minimum angle reducing the pump flow and if the pressure differential is reducing then the swash plate is swivelled to the maximum angle increasing the pump flow to load. These corrections go on continuously until a balance is restored at the flow control orifice. A bleed down orifice is provided at the control valve to vent the trapped pressure in the load sense line. PRESSURE & FLOW CONTROL REMOTELY SET ( CPFR) This is same as above valve ( CPF) except that it has no bleed orifice connecting the load sense line to tank. PRESSURE, FLOW & POWER CONTROL (CPFH) This control allows to limit the pump drive power at a constant speed (rpm) to set value in relation to the pump flow and pressure (p x v = constant). Efficient power consumption is achieved with this and a constant drive torque is maintained with varying pressure and flows. Operating pressure exerts a force on a piston within the control piston on to the rocker arm. An externally adjustable spring force acts on the opposite side of this and this determines the power setting. When the force exerted by the operating pressure is more, the pilot control valve is operated by the rocker arm positioning the swash plate towards zero flow. When the pressure exerted by operating pressure is lower, the swash plate is positioned to give maximum flow. Here also it is possible to set the minimum and maximum angles of the swash plate by an external adjusting screw to limit the pump flow to 5% of it s maximum capacity. 7

AXIAL PISTON PUMP - J9V PUMP START-UP PROCEDURE AERATION Circuit design and reservoir must prevent aeration of the oil. Proper care must be taken to ensure that joint, seals and gaskets will not leak or deteriorate. This is most important in low pressure and suction lines. Connections should be tightened properly to prevent air from entering the system. It is recommended to use sight glasses in the reservoir in order to determine whether significant amounts of air is present in the fluid or not. Fluid bubbles on the surface of the reservoir may indicate the presence of excessive aeration. Note: Do not operate if the fluid is milky and not clear. RESERVOIRS OIL LEVEL Oil level of the reservoir should be as high as possible above the suction line opening. All return lines should discharge near the tank bottom, always below the oil level, and far away from the pump inlet. Reservoirs should incorporate means (dip stick, sight gauge etc.) for easy checking of the oil level. In the absence of these devices, the oil level cannot be checked and in case of a leak, the pump can be starved and damaged due to loss of lubrication property. It is preferable for location of reservoirs above the pumps. This causes flooded suction for the pump and reduces the possibility of pump cavitation. SUCTION AND RETURN LINES Pump inlet and tank return lines should be attached to the reservoir by flanges or welded heavy duty coupling. If the inlet (suction) line is connected to the bottom of the reservoir, the coupling should extend above the bottom inside the tank. This prevents residual dirt entering the suction line when the tank is cleaned. Proper seals should be used on all the suction line connections so that they will not leak nor deteriorate. AFFLE PLATE A baffle plate in the reservoir is recommended to separate the suction and return lines. The plate helps return oil to circulate around the outer wall of the reservoir for cooling before it reenters the pump. It also helps entrained air to separate from the oil. Cascade effects are minimised by providing baffle plate opening. MAGNETS Magnets in a reservoir should be able to pick up ferrous particles not retained by filters or strainers. Magnets should be assembled to the support bars located between suction and return lines, and should be accessible for cleaning. FILLER-CUM-REATHER Reservoirs are vented to the atmosphere through an opening that lets air leave or enter the space above the oil as the fluid level rises or falls. A filler-cum-breather unit which can filter air, is used to handle the air flow required to maintain atmospheric pressure whether the tank is full or empty. PREPARATION PRIOR TO START-UP The reservoir and the pipe lines should be cleaned properly prior to filling with fluid. FLUSHING The reservoir should be filled with filtered hydraulic oil to a sufficient level to prevent vortexing at the suction connection to pump inlet. It is recommended to clean the system by flushing and filtering, using an external pump. efore putting the oil into the system, the user must clean it accurately. It is recommended to fill the reservoir using mobile filtration units. FILLING AND REMOVING AIR If the pump is mounted above the oil level, it should be filled with the oil through the outlet port. If the pump is mounted below the fluid level, the pump outlet fitting can be loosened to allow fluid to displace the air. It is desirable to loosen the fill cap on the reservoir to allow the flow freely. When a solid stream of fluid without air begins to drain through the fitting, then it should be retightened. An air bleed valve in the outlet line of the system is recommended to remove trapped air. The pump should be filled with oil before start-up, if this device is used. Note : The pump should not be operated with the outlet pressure lower than the inlet pressure. PUMP START-UP The pump should be always started on no load condition. Start the engine and run the pump in idle condition for approximately five minutes. Once the pump is started, it should prime and pump within a few seconds. If it does not, check for no restrictions between the reservoir and the inlet of the pump and no leaks in the inlet line and connections. Also ensure that trapped air can escape from the outlet. After smooth run of the pump, start operating the controls of the system. Extend all actuators to maximum safe limit to completely fill the system with fluid. Ensure that the fluid level is not below the "LOW" limit. In case it is low, add fluid to the reservoir to bring the fluid to the normal fill level. 8

AXIAL PISTON PUMP - J9V GENERAL CHARACTERISTICS Specification Units J9V9 J9V18 J9V27 J9V45 J9V72 J9V99 J9V135 Displacement 3 cm /rev 9 18 27 45 72 1 14 Max. speed. (no) RPM 36 33 3 26 22 2 18 Limiting Speed (n max) rpm 43 39 36 31 26 24 21 Max. Flow (at no) LPM 37 59 84 117 156 2 252 Flow at 15 rpm LPM 13.5 27 4.5 67 16 148.5 22.5 Max. Working Pressure ar 28 28 28 28 28 28 28 Peak Pressure ar 35 35 35 35 35 35 35 Max. Power (at no & 28 bar) Kw 16 27.7 39 55 73 93 114/129 Power at 15 rpm & 28 bar Kw 6 12.6 2 32 51 69 94.5 Max Torque Nm 42 8 125 2 316 445 623 Weight (approx) Kg 8 12 15 21 33 45 6 Case Pressure 2 Kg/cm.5.5.5.5.5.5.5 Peak Case Pressure 2 Kg/cm 2. 2. 2. 2. 2. 2. 2. Filling Volume L.2.4.7 1 1.6 2.2 3. Max. Permissible Axial Load F Max N 4 7 1 15 24 4 48 Max. Permissible Radial Load Fq Max N 25 35 12 15 19 23 28 9

AXIAL PISTON PUMP - J9V9 ORDERING CODE: J 9 V 9 CPR / R - N 3 S2 VELJAN Axial piston pump Variable displacement, Swash plate design, Working pressure 28bar. Peak pressure 35 bar. Size Displacement, Vgmax 9 cc/rev Control devices CP - Pressure control CPR - Pressure control (Remote controlled) CPFR - Pressure and flow control (Remote controlled) Rotation Viewed from shaft end R Clockwise L - Counter clockwise Seals N: NR- (una-n) gasket / Shaft seal FPM Shaft end 1 - Keyed shaft (ISO) Ø18 3 - Splined shaft 19-4 (SAE A-, 3/4 ) 2 - Keyed shaft (SAE) Ø19.5 4 - Splined shaft 16-4 (SAE A, 5/8 ) Mounting flange A-ISO (2 bolt) -SAE (2 bolt) Port connections M2 - SAE rear ported, Metric threads S2 - SAE rear ported, UNC threads 11

AXIAL PISTON PUMP - J9V9 UNIT DIMENSIONS OF J9V 9 : REAR PORTED : (NOT INCLUDING VALVES) : ISO VERSION : 73 11 56 M16 x 1.5 D1 9 45 53.5 Ø11 56 Ø8. / 79.954 D2 19 134 7 8 24 M16x1.5 148 SAE VERSION: 73 11 56 D1 9 45 9/16-18 UNF - 2 53.5 56 Ø11 Ø82.55 / 82.496 D2 16.4 134 6.4 8 24 9/16-18 UNF - 2 148 12

AXIAL PISTON PUMP - J9V9 SHAFT END DETAILS : SHAFT 1 2 SHAFT 2 2.5 6. / 5.97 25 +.25 4.76 28.6 2.5 +.5 -.1 Ø18.8 / 17.997 +.5 -.1 21.1 -.2 Ø19.5 28 33 36 41 SHAFT 3 SHAFT 4 19-4 (SAE A-) 16/32 DP, 11T 16-4 (SAE A) 16/32 DP, 9T Ø3/4" Ø5/8" 1/4-2 UNC - 2 14 15.8 22 3 23.8 38 31.8 FLANGE DETAILS : ISO : 319 / 2 2 OLT FLANGE SAE : 82 2 (A ) SAE J744 Okt 83 2 OLT FLANGE PORT DETAILS : WITHOUT CONTROL VALVES : S 28.6 28.6 52.2 52.2 SIZE S INLET PORT OUTLET PORT D1 / D2 CASE DRAIN PORTS X PILOT PORT ISO M27x2 M27x2 M16x1.5 M14x1.5 SAE 1 1/16-12 UNF - 2 1 1/16-12 UNF - 2 9/16-18 UNF - 2 7/16-2 UNF - 2 13

AXIAL PISTON PUMP - J9V9 CONTROLS The J9V 9 model piston pump is offered with a variety of control options that are designed for optimum performance of the pump in different types of applications. CONSTANT PRESSURE CONTROL ( CP) This control maintains the pressure in a hydraulic circuit at a constant set value within the control range during pump operation irrespective of changing flow demands of the load on the pump. The pump supplies only that much volume of oil as required by the load. If the pressure in the circuit tends to raise above the set value, then the pump swash plate angle is proportionally reduced which in turn reduces the flow of oil to the load and thus preventing the pressure raise. In the starting condition when supply pressure is zero the control spring positions the swash plate at its maximum angle allowing the pump to supply the maximum volume of oil to the load in the circuit. As the pressure in circuit raises, the swash plate angle is progressively reduced by the control piston resulting in lesser oil flow to the circuit. It is further possible to restrict the min. and max. angles of the swash plate by adjustable set screws for limiting the pump flow to 5% of it s max. rating. As it is possible to set the pressure control at a pressure higher than the maximum rated pressure of the pump it is recommended that an additional pressure relief valve (set to about 2 bar more than the maximum allowed control pressure) be used in the circuit. Also to ensure that the pressure control is not set for higher than the permissible value, help of a pressure gauge mounted on the pump outlet side be considered STATIC CURVE At SPEED 15 rpm AND TEMPERATURE. OF OIL IS 5 C p Flow Q Setting range S 2 bar Ports S D1,D2 Working pressure p Outlet port Inlet port Drain ports (D2 Plugged) 4 17 86 D2 D1 28 bar UNIT DIMENSIONS OF CP : ISO & SAE VERSIONS : 164 14

AXIAL PISTON PUMP - J9V9 CONTROLS CONSTANT PRESSURE CONTROL REMOTELY SET ( CPR) This is same as above Constant Pressure Control except that in this a remotely mounted pressure relief valve is used as shown in the circuit along side for pressure setting of the pump. X STATIC CURVE p Flow Q Setting range 2 bar Working pressure p 28 bar Ports S D1 D2 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port PRESSURE & FLOW CONTROL REMOTELY ( CPFR) : In addition to the constant pressure control this also maintains constant flow to the load. The pump flow is determined by an external orifice (not part of pump control block) fitted in the circuit between the pump and the load as long as the load pressure is less than the set pressure. The differential pressure at the external orifice is used to regulate the pump displacement to match the load requirement. The pressure drop across the orifice is maintained constant and there by achieving constant flow to the load. If the differential pressure across the orifice tends to increase then the swash plate is swivelled to minimum angle reducing the pump flow and if the pressure differential is reducing then the swash plate is swivelled to the maximum angle increasing the pump flow to load. These corrections go on continuously until a balance is restored at the flow control orifice STATIC CURVE p Flow Q Adjustment range 2 bar Operating pressure p 28 bar Ports S D2 D1 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port 15

AXIAL PISTON PUMP - J9V9 UNIT DIMENSIONS OF CPR / CPFR : ISO VERSION : 15 4 x M14x 1. 5 x 19.7 117 179 SAE VERSION : 15 4 x 12 179 16

AXIAL PISTON PUMP - J9V18 ORDERING CODE: J 9 V 18 CPR / R - N 1 A M1 VELJAN Axial piston pump Variable displacement, Swash plate design, Working pressure 28bar. Peak pressure 35 bar. Size Displacement, Vgmax 18 cc/rev Control devices CP - Pressure control CPR - Pressure control (Remote controlled) CPF - Pressure and flow control CPFR - Pressure and flow control (Remote controlled) Rotation Viewed from shaft end R Clockwise L - Counter clockwise Seals N: NR- (una-n) gasket / Shaft seal FPM F: FPM gasket / Shaft seal FPM Shaft end 1-Keyed shaft (ISO) dia. 18 3 - Splined shaft 19-4 (SAE A-,3/4 ) 2 -Keyed shaft (SAE) dia.19.5 4 - Splined shaft 16-4 (SAE A, 5/8 ) Mounting flange A-ISO ( 2 bolt ) -SAE ( 2 bolt ) Port connections M1 - SAE side ported, Metric threads S1 - SAE side ported, UNC threads M2 - SAE rear ported, Metric threads S2 - SAE rear ported, UNC threads 17

AXIAL PISTON PUMP - J9V18 UNIT DIMENSIONS OF J9V 18 : REAR PORTED : (NOT INCLUDING VALVES) : ISO VERSION : 195 145 43 11.5 11 MECHANICAL DISPLACEMENT LIMITER D1 D2 66 63 Ø8. / 79.954 63 68 45 83 7 19 156 SAE VERSION: 195 145 43 11.5 11 67 MECHANICAL DISPLACEMENT LIMITER D1 63 63 66 D2 6.3 Ø82.55 / 82.496 45 83 16.4 156 18

AXIAL PISTON PUMP - J9V18 REAR PORTED : ISO VERSION : 154.9 43 11.5 11 66 Ø8. / 79.954 68 4 5 83 7 19 154 SAE VERSION: 154.9 43 11.5 11 67 Ø82.55 / 82.496 66 45 45 6.3 83 16.4 154 19

AXIAL PISTON PUMP - J9V18 SHAFT END DETAILS : SHAFT 1 & 2 A7 SIZE SHAFT 1 SHAFT 2 A1 A6 A1 6. / 5.97 +.25 4.76 A2 2.5 21.1 A2 A3 A4 A3 Ø18.8 / 17.997 Ø19.5 -.2 A4 M6 12-24UNC - 2 A5 16 12.5 A6 2 2.5 A5 A7 25 28.6 A8 A8 28 33 A9 A9 36 41 2 1 3 SIZE SHAFT 3 SHAFT 4 1 19-4 (SAE A-) 16/32 DP,11T 16-4 (SAE A) 16/32 DP,11T 2 Ø3/4" Ø5/8" 3 22 15.8 4 3 23.8 5 38 31.8 4 5 2

AXIAL PISTON PUMP - J9V18 FLANGE DETAILS : ISO : 319 / 2 2 OLT FLANGE SAE : SAE 82-2 (A) SAE J744 c 2 OLT FLANGE PORT CONNECTIONS: ISO & SAE VERSIONS: VERSION S INLET PORT OUTLET PORT D1 CASE DRAIN PORT D2 CASE DRAIN PORT (PLUGGED AT FACTORY) ISO SAE SAE 1 SAE 3/4 M 16 x 1.5 SAE 1 SAE 3/4 9/16-18 UNF - 2 M 16 x 1.5 9/16-18 UNF - 2 PORT DETAILS: SIDE PORTED : ISO & SAE VERSIONS: SIZE ISO INLET PORT SAE OUTLET PORT ISO SAE D A A Ø25 Ø25 Ø2 52.4 52.4 47.6 Ø2 47.6 C 26.2 26.2 22.2 22.2 C 3/8-16 UNC - 2 D M1 x 17 depth M1X17 depth 2 depth 3/8-16 UNC - 2 2 depth 47.6 2 Q 22.2 35 VERSION INLET PORT S P OUTLET PORT Q ISO M1 x 17 depth M1 x 17 depth 26.2 S 35 SAE 3/8-16 UNC - 2 2 depth 3/8-16 UNC - 2 2 depth P 25 52.4 21

AXIAL PISTON PUMP - J9V18 PERFORMANCE CURVES WITH PRESSURE CONTROL CP : NOISE LEVEL VERSES OPERATING PRESSURE WITH FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5ºC Measuring error : ± 2d (A) AT n = 3 rpm AT n = 15 rpm 72 Qmax Qmin= 72 Noise level DA 68 64 Noise level DA 68 64 Qmax Qmin= 6 6 56 (3) (6) (9) (12) (15) (18) (21) (24) (28) 56 (3) (6) (9) (12) (15) (18) (21) (24) (28) Operating Pressure p (bar) Operating Pressure p (bar) DRIVE POWER AND OUTPUT FLOW WITH HYDRAULIC FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5º C n =15 rpm, n = 3 rpm 1 2 3 n2 Drive power p (kw) 25 2 15 1 5 PQ max n1 n2 n1 3 6 9 12 15 18 21 24 28 Operating Pressure p (bar) (8) n =15 rpm, n = 3 rpm 1 2 Drive power p (kw) (6) (4) (2) 3 6 9 12 15 18 21 24 28 Operating Pressure p (bar) n1 n2 22

AXIAL PISTON PUMP - J9V18 CONTROLS The J9V 9 model piston pump is offered with a variety of control options that are designed for optimum performance of the pump in different types of applications. CONSTANT PRESSURE CONTROL ( CP) This control maintains the pressure in a hydraulic circuit at a constant set value within the control range during pump operation irrespective of changing flow demands of the load on the pump. The pump supplies only that much volume of oil as required by the load. If the pressure in the circuit tends to raise above the set value, then the pump swash plate angle is proportionally reduced which in turn reduces the flow of oil to the load and thus preventing the pressure raise. In the starting condition when supply pressure is zero the control spring positions the swash plate at its maximum angle allowing the pump to supply the maximum volume of oil to the load in the circuit. As the pressure in circuit raises, the swash plate angle is progressively reduced by the control piston resulting in lesser oil flow to the circuit. It is further possible to restrict the min. and max. angles of the swash plate by adjustable set screws for limiting the pump flow to 5% of it s max. rating. As it is possible to set the pressure control at a pressure higher than the maximum rated pressure of the pump it is recommended that an additional pressure relief valve (set to about 2 bar more than the maximum allowed control pressure) be used in the circuit. Also to ensure that the pressure control is not set for higher than the permissible value, help of a pressure gauge mounted on the pump outlet side be considered STATIC CURVE At SPEED 15 rpm AND TEMPERATURE. OF OIL IS 5 C p Flow Q Setting range S D2 D1 2 bar Ports S D1,D2 Working pressure p 28 bar Outlet port Inlet port Drain ports (D2 Plugged) DYNAMIC OPERATION CURVES: These curves are obtained under conditions with the unit mounted inside the tank. y opening and closing the pressure relief valve load steps can be obtained. At Speed = 15 rpm and temperature of oil is 5 C the dynamic curves are: 35 3 25 Operating Pressure p (bar) 2 15 1 5 Vmax Displacement (swivel angle) Vmin swivel out time t sa Control time swivel in time t se Control time: T sa at 5 bar (725 psi) is 5 T sa at 22bar (32 psi) is 25 T se at 28 bar (zero stroke) is 2 23

AXIAL PISTON PUMP - J9V18 UNIT DIMENSIONS OF CP : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 213.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION ADJUSTMENT SCREW FOR PRESSURE CONTROL 175.9 REAR PORTED : ISO & SAE VERSIONS : 14.5 212.4 24

AXIAL PISTON PUMP - J9V18 CONTROLS CONSTANT PRESSURE CONTROL REMOTELY SET ( CPR) This is same as above Constant Pressure Control except that in this a remotely mounted pressure relief valve is used as shown in the circuit along side for pressure setting of the pump. STATIC CURVE X p Flow Q Setting range 2 bar Working pressure p 28 bar Ports S D1 D2 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port UNIT DIMENSIONS OF CPR : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 197 213.5 113.9 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PORT ' X' PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF 175.9 25

AXIAL PISTON PUMP - J9V18 REAR PORTED : ISO & SAE VERSIONS : ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. 99 (SAE) 78 (ISO) PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 14.5 PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION PORT 'X' 195.9 212.4 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH PRESSURE & FLOW CONTROL ( CPF / CPFR) PRESSURE & FLOW CONTROL ( CPF) LOAD SENSING : In addition to the constant pressure control this also maintains constant flow to the load. The pump flow is determined by an external orifice ( not part of pump control block) fitted in the circuit between the pump and the load as long as the load pressure is less than the set pressure. The differential pressure at the external orifice is used to regulate the pump displacement to match the load requirement.the pressure drop across the orifice is maintained constant and there by achieving constant flow to the load. If the differential pressure across the orifice tends to increase then the swash plate is swivelled to minimum angle reducing the pump flow and if the pressure differential is reducing then the swash plate is swivelled to the maximum angle increasing the pump flow to load. These corrections go on continuously until a balance is restored in at the flow control orifice. A bleed down orifice is provided at the control valve to vent the trapped pressure in the load sense line. PRESSURE & FLOW CONTROL REMOTELY- ( CPFR) This is same as above valve ( CPF) except that it has no bleed orifice connecting the load sense line to tank X Not included in supply PORTS: : Outlet port S: Inlet port D1,D2 : Drain ports (D2 plugged) X : Pilot port S D2 D1 26

AXIAL PISTON PUMP - J9V18 STATIC CURVE At Speed 15 rpm and temp. of oil at 5 C. Hysteresis and pressure rise p Q max Flow Q flow qv Q Adjustment range Q min speed n 2 bar Operating pressure p (bar) 28 bar p = 5 bar max. Max. flow deviation, qmax is.9 L/min Requirement of pilot oil for CPF ~ 4.5 L/min. (max) Requirement of pilot oil for CPFR ~3 L/min. (max) DYNAMIC OPERATING CURVE: This curve is obtained under conditions with the unit mounted inside the tank. 1 35 displacement V % 75 5 25 3 28 25 2 15 1 5 load pressure(bar) 18 swivel out time t SA control time swivel in time t SE Control time: t SA at 28 bar (4 psi) is 4 ms t SE at 28 bar stand by (4 psi stand by) is 15 ms t SE at 5 bar stand by ( 725 psi stand by) is 4 ms 27

AXIAL PISTON PUMP - J9V18 UNIT DIMENSIONS OF CP : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 197 213.5 113.9 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PORT ' X' PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF 175.9 REAR PORTED : ISO & SAE VERSIONS : ADJUSTMENT SCREW FOR PRESSURE CONTROL ZERO STROKE PRESSURE ADJUSTMENT SCREW FOR FLOW CONTROL DIFFERENTIAL PRESSURE 99 (ISO) 78 (SAE) PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 14.5 PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION PORT 'X' 195.9 212.4 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 28

AXIAL PISTON PUMP - J9V27 ORDERING CODE: J 9 V 27 CPR / R - N 1 A M1 VELJAN Axial piston pump Variable displacement, Swash plate design, Working pressure 28bar. Peak pressure 35 bar. Size Displacement, Vgmax 27 cc/rev Control devices CP - Pressure control CPR - Pressure control (Remote controlled) CPF - Pressure and flow control CPFR - Pressure and flow control (Remote controlled) CPFH - Pressure,flow and power control. Rotation Viewed from shaft end R Clockwise L - Counter clockwise Seals N: NR- (una-n) gasket / Shaft seal FPM F: FPM gasket / Shaft seal FPM Shaft end 1- Keyed shaft (ISO) dia. 22 2 - Splined shaft 22-4 (SAE,7/8 ) 3 - Splined shaft 22-4 (SAE, 7/8 ) - Higher through drive rotation torques Mounting flange A-ISO ( 2 bolt ) -SAE ( 2 bolt ) Port connections M1 - SAE side ported, Metric threads S1 - SAE side ported, UNC threads M2 - SAE rear ported, Metric threads S2 - SAE rear ported, UNC threads 29

AXIAL PISTON PUMP - J9V27 UNIT DIMENSIONS OF J9V 27: SIDE PORTED : (NOT INCLUDING VALVES) ISO VERSION : 194 164.5 OUTLET PORT 9 6.3 D1 14 174 79 79 Ø1. / 99.946 75 45 45 D1 74 INLET PORT D2 13 D2 1 14 164.5 4 172 SAE VERSION: 194 164.5 OUTLET PORT 9 6.3 D1 14 174 45 45 D1 79 79 Ø11.6 / 11.546 75 74 INLET PORT D2 164.5 14 D2 9.5 146 4 172 3

AXIAL PISTON PUMP - J9V27 REAR PORTED : ISO VERSION : 9 D1 14 1 7 4 45 45 D1 79 79 Ø1. / 99.946 75 74 D2 13 D2 1 14 17 4 17 SAE VERSION: 9 D1 14 174 79 79 Ø11.6 / 11.546 75 45 45 D1 74 D2 14 D2 4 9,5 146 17 17 31

AXIAL PISTON PUMP - J9V27 SHAFT END DETAILS : SHAFT 1 32 6. / 5.97 2 -.1 24.5 M6 16 Ø22.9 / 21.996 46 SHAFT 2 : SHAFT 22 4 (SAE ) SAE J744 OCT 83 SHAFT 3 : SHAFT 22 4 (SAE ) SAE J744 OCT 83 1/4-2 unc - 2 Ø7/8 " 1/4-2 unc - 2 Ø7/8 " 16 PRESSURE ANGLE 3 13 TEETH 16/32 PITCH 16 PRESSURE ANGLE 3 13 TEETH 16/32 PITCH 25.1 25 USEFUL SPLINE LENGTH 33.1 41 41 32

AXIAL PISTON PUMP - J9V27 FLANGE DETAILS : ISO : 319 / 2 2 OLT FLANGE SAE : SAE 11-2 () SAE J744 OCT 83 2 OLT FLANGE PORT CONNECTIONS : ISO & SAE VERSIONS VERSION S INLET PORT OUTLET PORT D1 CASE DRAIN PORT D2 CASE DRAIN PORT (PLUGGED AT FACTORY) ISO SAE 1 1/4" SAE 3 / 4 " M18 x 1.5 M18 x 1.5 SAE SAE 1 1/4" SAE 3 / 4 " 3/4-16 UNF - 2 3/4-16 UNF - 2 PORT DETAILS: SIDE PORTED : ISO & SAE VERSIONS: SIZE ISO INLET PORT OUTLET PORT SAE ISO SAE D A A Ø32 Ø32 Ø2 58.7 58.7 47.6 Ø2 47.6 C 3.2 3.2 22.2 22.2 C D M1 x 17 depth 7/16-14 UNC - 2 24 depth M1X17 depth 3/8-16 UNC - 2 18 depth 47.6 2 Q 22.2 45 VERSION INLET PORT S P OUTLET PORT Q ISO M1 x 17 depth M1 x 17 depth 3 45 SAE 7/16-14 UNC - 2 24 depth 3/8-16 UNC - 2 18 depth 32 58.7 S P 33

AXIAL PISTON PUMP - J9V27 PERFORMANCE CURVES WITH PRESSURE CONTROL CP NOISE LEVEL VERSES OPERATING PRESSURE WITH FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5ºC Measuring error : ± 2d (A) AT n = 3 rpm AT n = 15 rpm 72 Qmax Qmin= 72 Noise level DA 68 64 Noise level DA 68 64 Qmax Qmin= 6 6 56 56 (3) (6) (9) (12) (15) (18) (21) (24) (28) Operating Pressure p (bar) (3) (6) (9) (12) (15) (18) (21) (24) (28) Operating Pressure p (bar) DRIVE POWER AND OUTPUT FLOW WITH HYDRAULIC FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5º C n =15 rpm, n = 3 rpm 1 2 Drive power p (kw) 4 35 3 25 2 15 1 5 Operating Pressure p (bar) PQ max PQ Zero 3 6 9 12 15 18 21 24 28 n 2 n 1 n 2 n 1 n =15 rpm, n = 3 rpm 1 2 (8) Drive power p (kw) (6) (4) (2) 3 6 9 12 15 18 21 24 28 n 2 n 1 Operating Pressure p (bar) 34

AXIAL PISTON PUMP - J9V27 CONTROLS The J9V 9 model piston pump is offered with a variety of control options that are designed for optimum performance of the pump in different types of applications. CONSTANT PRESSURE CONTROL ( CP) This control maintains the pressure in a hydraulic circuit at a constant set value within the control range during pump operation irrespective of changing flow demands of the load on the pump. The pump supplies only that much volume of oil as required by the load. If the pressure in the circuit tends to raise above the set value, then the pump swash plate angle is proportionally reduced which in turn reduces the flow of oil to the load and thus preventing the pressure raise. In the starting condition when supply pressure is zero the control spring positions the swash plate at its maximum angle allowing the pump to supply the maximum volume of oil to the load in the circuit. As the pressure in circuit raises, the swash plate angle is progressively reduced by the control piston resulting in lesser oil flow to the circuit. It is further possible to restrict the min. and max. angles of the swash plate by adjustable set screws for limiting the pump flow to 5% of it s max. rating. As it is possible to set the pressure control at a pressure higher than the maximum rated pressure of the pump it is recommended that an additional pressure relief valve (set to about 2 bar more than the maximum allowed control pressure) be used in the circuit. Also to ensure that the pressure control is not set for higher than the permissible value, help of a pressure gauge mounted on the pump outlet side be considered STATIC CURVE At SPEED 15 rpm AND TEMPERATURE. OF OIL IS 5 C p Flow Q Setting range S D2 D1 2 bar Ports S D1,D2 Working pressure p 28 bar Outlet port Inlet port Drain ports (D2 Plugged) DYNAMIC OPERATION CURVES: These curves are obtained under conditions with the unit mounted inside the tank. y opening and closing the pressure relief valve load steps can be obtained. At Speed = 15 rpm and temperature of oil is 5 C the dynamic curves are: 35 3 25 Operating Pressure p (bar) 2 15 1 5 Vmax Displacement (swivel angle) Vmin swivel out time t sa Control time swivel in time t se Control time: T sa at 5 bar (725 psi) is 6 T sa at 22bar (32 psi) is 3 T se at 28 bar (zero stroke) is 2 35

AXIAL PISTON PUMP - J9V27 UNIT DIMENSIONS OF CP : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 2 2 9.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 2 REAR PORTED : ISO & SAE VERSIONS : 19 S 225 36

AXIAL PISTON PUMP - J9V27 CONTROLS CONSTANT PRESSURE CONTROL REMOTELY SET ( CPR) This is same as above Constant Pressure Control except that in this a remotely mounted pressure relief valve is used as shown in the circuit along side for pressure setting of the pump. STATIC CURVE X p Flow Q Setting range 2 bar Working pressure p 28 bar Ports S D1 D2 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port UNIT DIMENSIONS OF CPR : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 229.5 213 138 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. PORT ' X' ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF 2 37

AXIAL PISTON PUMP - J9V27 REAR PORTED : ISO & SAE VERSIONS : ADJUSTING SCREW FOR DIFFERENTIAL PRESSURE 94 (ISO) 73 (SAE) PILOT VALVE INSTALLED HERE FOR CLOCKWISE ROTATION 'X' PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION 43 S 29 225 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH PRESSURE & FLOW CONTROL ( CPF / CPFR) PRESSURE & FLOW CONTROL ( CPF) LOAD SENSING : In addition to the constant pressure control this also maintains constant flow to the load. The pump flow is determined by an external orifice ( not part of pump control block) fitted in the circuit between the pump and the load as long as the load pressure is less than the set pressure. The differential pressure at the external orifice is used to regulate the pump displacement to match the load requirement.the pressure drop across the orifice is maintained constant and there by achieving constant flow to the load. If the differential pressure across the orifice tends to increase then the swash plate is swivelled to minimum angle reducing the pump flow and if the pressure differential is reducing then the swash plate is swivelled to the maximum angle increasing the pump flow to load. These corrections go on continuously until a balance is restored in at the flow control orifice. A bleed down orifice is provided at the control valve to vent the trapped pressure in the load sense line. PRESSURE & FLOW CONTROL REMOTELY- ( CPFR) This is same as above valve ( CPF) except that it has no bleed orifice connecting the load sense line to tank X Not included in supply PORTS: : Outlet port S: Inlet port D1,D2 : Drain ports (D2 plugged) X : Pilot port S D2 D1 38

AXIAL PISTON PUMP - J9V27 STATIC CURVE At Speed 15 rpm and temp. of oil at 5 C. Hysteresis and pressure rise p Q max Flow Q flow qv Q Adjustment range Q min speed n 2 bar Operating pressure p (bar) 28 bar p = 5 bar max. Max. flow deviation, qmax is.9 L/min Requirement of pilot oil for CPF ~ 4.5 L/min. (max) Requirement of pilot oil for CPFR ~3 L/min. (max) DYNAMIC OPERATING CURVE: This curve is obtained under conditions with the unit mounted inside the tank. 1 35 displacement V % 75 5 25 3 28 25 2 15 1 5 load pressure(bar) 18 swivel out time t SA control time swivel in time t SE Control time: t SA at 28 bar (4 psi) is 4 ms t SE at 28 bar stand by (4 psi stand by) is 2 ms t SE at 5 bar stand by ( 725 psi stand by) is 4 ms 39

AXIAL PISTON PUMP - J9V27 UNIT DIMENSIONS OF CPF/CPFR : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 2 2 9.5 213 138 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PORT ' X' ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF 2 REAR PORTED : ISO & SAE VERSIONS : ADJUSTING SCREW FOR FLOW CONTROL - DIFFERENTIAL PRESSURE ADJUSTING SCREW FOR PRESSURE CONTROL - ZERO STROKE PRESSURE 94 (ISO) 73 (SAE) 'X' PILOT VALVE INSTALLED HERE FOR CLOCKWISE ROTATION PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION 43 S 29 225 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 4

AXIAL PISTON PUMP - J9V27 PRESSURE, FLOW & POWER CONTROL (CFHP) This control allows to limit the pump drive power at a constant speed (rpm) to set value in relation to the pump flow and pressure (p x v = constant). Efficient power consumption is achieved with this and a constant drive torque is maintained with varying pressure and flows. Operating pressure exerts a force on a piston within the control piston on to the rocker arm. An externally adjustable spring force acts on the opposite side of this and this determines the power setting. When the force exerted by the operating pressure is more, the pilot control valve is operated by the rocker arm positioning the swash plate towards zero flow. When the pressure exerted by operating pressure is lower, the swash plate is positioned to give maximum flow. Here also it is possible to set the minimum and maximum angles of the swash plate by an external adjusting screw to limit the pump flow to 5% of it s maximum capacity. 1 Maximum power curve Flow Q (%) 75 5 25 Minimum power curve 5 1 15 2 25 28 bar Working pressure P Ports S D 2 D 1 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port 41

AXIAL PISTON PUMP - J9V27 UNIT DIMENSIONS OF CPFH : SIDE PORTED: ISO & SAE VERSIONS: POWER VALVE 17 CONTROL VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION CONTROL VALVE INSTALLED HERE FOR CLOCKWISE ROTATION PORT 'X' 229.5 REAR PORTED: ISO & SAE VERSIONS: 48 POWER VALVE PILOT VALVE INSTALLED HERE FOR CLOCKWISE ROTATION 48 (SAE) 51 (ISO) 17 19 PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION 'X' 86 S 12 225 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 42

AXIAL PISTON PUMP - J9V45 ORDERING CODE: J 9 V 45 CPR / R - N 1 A M1 VELJAN Axial piston pump Variable displacement, Swash plate design, Working pressure 28bar. Peak pressure 35 bar. Size Displacement, Vgmax 45 cc/rev Control devices CP - Pressure control CPR - Pressure control (Remote controlled) CPF - Pressure and flow control CPFR - Pressure and flow control (Remote controlled) CPFH - Pressure,flow and power control. Rotation Viewed from shaft end R Clockwise L - Counter clockwise Seals N: NR- (una-n) gasket / Shaft seal FPM F: FPM gasket / Shaft seal FPM Shaft end 1-Keyed shaft (ISO) dia. 25 2 - Splined shaft 25-4 (SAE -,1 ) 3 -Splined shaft 25-4 (SAE -, 1 ) - Higher through drive rotation torques 4 - Splined shaft 22-4 (SAE, 7/8 ) Mounting flange A-ISO ( 2 bolt ) -SAE ( 2 bolt ) Port connections M1 - SAE side ported, Metric threads S1 - SAE side ported, UNC threads M2 - SAE rear ported, Metric threads S2 - SAE rear ported, UNC threads 43

AXIAL PISTON PUMP - J9V45 UNIT DIMENSIONS OF J9V 45: SIDE PORTED : (NOT INCLUDING VALVES) ISO VERSION : OUTLET PORT 96 6.3 14 9 9 MECHANICAL DISPLACEMENT LIMITER D1 D2 Ø1. / 99.946 8.5 45 45 D1 83 1 INLET PORT 13 14 188 45 184 224 SAE VERSION: OUTLET PORT 96 6.3 14 9 9 MECHANICAL DISPLACEMENT LIMITER D1 D2 Ø11.6 / 11.546 8,5 45 45 D1 83 9.5 INLET PORT 14 146 188 184 45 224 44

AXIAL PISTON PUMP - J9V45 REAR PORTED : ISO VERSION : 189 96 6.3 14 D1 45 45 D1 Ø1. / 99.946 83 D2 8.5 1 D2 13 14 45 186 SAE VERSION: 189 96 6.3 14 D1 45 45 D1 D2 Ø11.6 / 11.456 8.5 83 9.5 14 146 D2 45 186 45

AXIAL PISTON PUMP - J9V45 SHAFT END DETAILS : SHAFT 1 SHAFT 2 : SHAFT 25 4 (SAE -) SAE J744 OCT 83 36 3 8. / 7.96 -.2 28 Ø1" PRESSURE ANGLE 3 15 TEETH 16/32 PITCH 19 M8 Ø25.9 / 24.996 3 38 16 1/4-2UNC - 2 52 45.9 SHAFT 3 : SHAFT 25 4 (SAE -) SAE J744 OCT 83 SHAFT 4 : SHAFT 22 4 (SAE ) SAE J744 OCT 83 16 1/4-2UNC - 2 Ø1" PRESSURE ANGLE 3 15 TEETH 16/32 PITCH 16 25.1 1/4-2UNC - 2 Ø 7/8" PRESSURE ANGLE 3 13 TEETH 16/32 PITCH 29.5 SPLINE LENGTH 33.1 45.9 41 46

AXIAL PISTON PUMP - J9V45 FLANGE DETAILS: ISO : 319 / 2 2 OLT FLANGE SAE : 11-2 () SAE J744 Okt 83 2 OLT FLANGE PORT CONNECTIONS : ISO & SAE VERSIONS VERSION S INLET PORT OUTLET PORT D1 CASE DRAIN PORT D2 CASE DRAIN PORT (PLUGGED AT FACTORY) ISO SAE 1 1/2" SAE 1 " M22 x 1.5 M22 x 1.5 SAE SAE 1 1/2" SAE 1 " 7/8-14 UNF - 2 7/8-14 UNF - 2 PORT DETAILS: SIDE PORTED : ISO & SAE VERSIONS: SIZE ISO INLET PORT OUTLET PORT SAE ISO SAE D A A Ø4 69.9 Ø4 69.9 Ø25 52.4 Ø25 52.4 C 35.7 35.7 26.2 26.2 C D M12 x 2 depth 1/2-13 UNC - 2 22 depth M1X17 depth 3/8-16 UNC - 2 18 depth REAR PORTED: ISO & SAE VERSIONS: Q 52.4 25 26.2 5 VERSION INLET PORT S P OUTLET PORT Q ISO M12x2 depth M1x17 depth 35.7 5 SAE 1/2-13 UNC - 2 22 depth 3/8-14 UNC - 2 18 depth P 4 S 69.9 47

AXIAL PISTON PUMP - J9V45 PERFORMANCE CURVES WITH PRESSURE CONTROL CP : NOISE LEVEL VERSES OPERATING PRESSURE WITH FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5ºC Measuring error: ± 2d (A) At n=15 rpm At n=26 rpm 76 76 Qmax Qmin= 72 Qmax 72 68 Qmin= 68 Noise level DA 64 6 Noise level DA 64 6 56 3 6 9 12 15 18 21 24 28 Operating Pressure p (bar) 56 3 6 9 12 15 18 21 24 28 Operating Pressure p (bar) DRIVE POWER AND OUTPUT FLOW WITH HYDRAULIC FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5º C At n=15 rpm 12 6 1 5 Flow Q [L/min] 8 6 4 2 Q PQ max PQ Zero 4 3 2 1 Drive power P (kw) 3 6 9 12 15 18 21 24 28 Operating Pressure p (bar) At n=26 rpm 12 6 1 Q 5 Flow Q [L/min] 8 6 4 2 PQ max PQ Zero 4 3 2 1 Drive power P (kw) 3 6 9 12 15 18 21 24 28 Operating Pressure p (bar) 48

AXIAL PISTON PUMP - J9V45 CONTROLS The J9V 9 model piston pump is offered with a variety of control options that are designed for optimum performance of the pump in different types of applications. CONSTANT PRESSURE CONTROL ( CP) This control maintains the pressure in a hydraulic circuit at a constant set value within the control range during pump operation irrespective of changing flow demands of the load on the pump. The pump supplies only that much volume of oil as required by the load. If the pressure in the circuit tends to raise above the set value, then the pump swash plate angle is proportionally reduced which in turn reduces the flow of oil to the load and thus preventing the pressure raise. In the starting condition when supply pressure is zero the control spring positions the swash plate at its maximum angle allowing the pump to supply the maximum volume of oil to the load in the circuit. As the pressure in circuit raises, the swash plate angle is progressively reduced by the control piston resulting in lesser oil flow to the circuit. It is further possible to restrict the min. and max. angles of the swash plate by adjustable set screws for limiting the pump flow to 5% of it s max. rating. As it is possible to set the pressure control at a pressure higher than the maximum rated pressure of the pump it is recommended that an additional pressure relief valve (set to about 2 bar more than the maximum allowed control pressure) be used in the circuit. Also to ensure that the pressure control is not set for higher than the permissible value, help of a pressure gauge mounted on the pump outlet side be considered STATIC CURVE At SPEED 15 rpm AND TEMPERATURE. OF OIL IS 5 C p Flow Q Setting range S D2 D1 2 bar Ports S D1,D2 Working pressure p 28 bar Outlet port Inlet port Drain ports (D2 Plugged) DYNAMIC OPERATION CURVES: These curves are obtained under conditions with the unit mounted inside the tank. y opening and closing the pressure relief valve load steps can be obtained. At Speed = 15 rpm and temperature of oil is 5 C the dynamic curves are: 35 3 25 Operating Pressure p (bar) 2 15 1 5 Vmax Displacement (swivel angle) Vmin swivel out time t sa Control time swivel in time t se Control time: T sa at 5 bar (725 psi) is 8 T sa at 22bar (32 psi) is 4 T se at 28 bar (zero stroke) is 2 49

AXIAL PISTON PUMP - J9V45 UNIT DIMENSIONS OF CP : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 245.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION ADJUSTMENT SCREW FOR PRESSURE CONTROL 25.7 REAR PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR CLOCKWISE ROTATION PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION 16 244 5

AXIAL PISTON PUMP - J9V45 CONTROLS CONSTANT PRESSURE CONTROL REMOTELY SET ( CPR) This is same as above Constant Pressure Control except that in this a remotely mounted pressure relief valve is used as shown in the circuit along side for pressure setting of the pump. STATIC CURVE X p Flow Q Setting range 2 bar Working pressure p 28 bar Ports S D1 D2 S D1,D2 X PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 229 (ISO / SAE) 245.5 Outlet port Inlet port Drain ports (D2 Plugged) Pilot port UNIT DIMENSIONS OF CPR : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. PORT ' X' ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF 143.7 ( ISO /SAE) 25.7 51

AXIAL PISTON PUMP - J9V45 REAR PORTED : ISO & SAE VERSIONS : ADJUSTING SCREW FOR DIFFERENTIAL PRESSURE 12.5 (ISO) 81.5 (SAE) 'X' PILOT VALVE INSTALLED HERE FOR CLOCKWISE ROTATION PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION 4 16 228 244 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH PRESSURE & FLOW CONTROL ( CPF / CPFR) PRESSURE & FLOW CONTROL ( CPF) LOAD SENSING : In addition to the constant pressure control this also maintains constant flow to the load. The pump flow is determined by an external orifice ( not part of pump control block) fitted in the circuit between the pump and the load as long as the load pressure is less than the set pressure. The differential pressure at the external orifice is used to regulate the pump displacement to match the load requirement.the pressure drop across the orifice is maintained constant and there by achieving constant flow to the load. If the differential pressure across the orifice tends to increase then the swash plate is swivelled to minimum angle reducing the pump flow and if the pressure differential is reducing then the swash plate is swivelled to the maximum angle increasing the pump flow to load. These corrections go on continuously until a balance is restored in at the flow control orifice. A bleed down orifice is provided at the control valve to vent the trapped pressure in the load sense line. PRESSURE & FLOW CONTROL REMOTELY- ( CPFR) This is same as above valve ( CPF) except that it has no bleed orifice connecting the load sense line to tank X Not included in supply PORTS: : Outlet port S: Inlet port D1,D2 : Drain ports (D2 plugged) X : Pilot port S D2 D1 52

AXIAL PISTON PUMP - J9V45 STATIC CURVE At Speed 15 rpm and temp. of oil at 5 C. Hysteresis and pressure rise p Q max Flow Q flow qv Q Adjustment range Q min speed n 2 bar Operating pressure p (bar) 28 bar p = 5 bar max. Max. flow deviation, qmax is.9 L/min Requirement of pilot oil for CPF ~ 4.5 L/min. (max) Requirement of pilot oil for CPFR ~3 L/min. (max) DYNAMIC OPERATING CURVE: This curve is obtained under conditions with the unit mounted inside the tank. 1 35 displacement V % 75 5 25 3 28 25 2 15 1 5 load pressure(bar) 18 swivel out time t SA control time swivel in time t SE Control time: t SA at 28 bar (4 psi) is 4 ms t SE at 28 bar stand by (4 psi stand by) is 2 ms t SE at 5 bar stand by ( 725 psi stand by) is 4 ms 53

AXIAL PISTON PUMP - J9V45 UNIT DIMENSIONS OF CPF / CPFR: SIDE PORTED: ISO & SAE VERSIONS: PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 229 (ISO / SAE) 245.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. PORT ' X' ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF 143.7 ( ISO /SAE) 25.7 REAR PORTED : ISO & SAE VERSIONS : ADJUSTING SCREW FOR FLOW CONTROL DIFFERENTIAL PRESSURE 12.5 (ISO) ADJUSTING SCREW FOR PRESSURE CONTROL - ZERO STROKE PRESSURE 'X' PILOT VALVE INSTALLED HERE FOR CLOCKWISE ROTATION 81.5 (SAE) PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION 4 16 228 244 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 54

AXIAL PISTON PUMP - J9V45 PRESSURE, FLOW & POWER CONTROL (CFHP) This control allows to limit the pump drive power at a constant speed (rpm) to set value in relation to the pump flow and pressure (p x v = constant). Efficient power consumption is achieved with this and a constant drive torque is maintained with varying pressure and flows. Operating pressure exerts a force on a piston within the control piston on to the rocker arm. An externally adjustable spring force acts on the opposite side of this and this determines the power setting. When the force exerted by the operating pressure is more, the pilot control valve is operated by the rocker arm positioning the swash plate towards zero flow. When the pressure exerted by operating pressure is lower, the swash plate is positioned to give maximum flow. Here also it is possible to set the minimum and maximum angles of the swash plate by an external adjusting screw to limit the pump flow to 5% of it s maximum capacity. 1 Maximum power curve Flow Q (%) 75 5 25 Minimum power curve 5 1 15 2 25 28 bar Working pressure P Ports S D 2 D 1 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port 55

AXIAL PISTON PUMP - J9V45 UNIT DIMENSIONS OF CPFH : SIDE PORTED: ISO & SAE VERSIONS: POWER VALVE 112 CONTROL VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 245.5 REAR PORTED: ISO & SAE VERSIONS: 54 POWER VALVE 48 (SAE) 51 (ISO) 112 16 PILOT VALVE INSTALLED HERE FOR CLOCKWISE ROTATION 91.5 PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION 244 129 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 56

AXIAL PISTON PUMP - J9V72 ORDERING CODE: J 9 V 72 CPR / R - N 1 C M1 VELJAN Axial piston pump Variable displacement, Swash plate design, Working pressure 28bar. Peak pressure 35 bar. Size Displacement, Vgmax 72 cc/rev Control devices CP - Pressure control CPR - Pressure control (Remote controlled) CPF - Pressure and flow control CPFR - Pressure and flow control (Remote controlled) CPFH - Pressure,flow and power control. Rotation Viewed from shaft end R Clockwise L - Counter clockwise Seals N: NR- (una-n) gasket / Shaft seal FPM F: FPM gasket / Shaft seal FPM Shaft end 1-Keyed shaft (ISO) dia. 32 2 - Splined shaft 32-4 (SAE C,1 1/4 ) 3 -Splined shaft 32-4 (SAE C, 1 1/4 ) - Higher through drive rotation torque Mounting flange C-ISO ( 4 bolt ) D-SAE ( 4 bolt ) Port connections M1 - SAE side ported, Metric threads S1 - SAE side ported, UNC threads M2 - SAE rear ported, Metric threads S2 - SAE rear ported, UNC threads 57

AXIAL PISTON PUMP - J9V72 UNIT DIMENSIONS OF J9V 72: SIDE PORTED : (NOT INCLUDING VALVES) ISO VERSION : 252 53 D2 6 18 11 11 Ø125. / 124.937 45 45 92 D1 1 D2 17 18 115 216 217 SAE VERSION: 252 53 D2 6 18 11 11 Ø127. / 126.937 45 45 92 D1 12.7 D2 18 181 115 216 217 58

AXIAL PISTON PUMP - J9V72 REAR PORTED : ISO VERSION : 223 115 D2 53 6 18 45 45 92 Ø125. / 124.937 D1 1 D2 17 18 214 SAE VERSION: 223 115 D2 53 6 18 45 45 92 Ø127. / 126.937 D1 12.7 D2 18 181 214 59

AXIAL PISTON PUMP - J9V72 SHAFT END DETAILS : SHAFT 1 45 2.5 1. / 9.96 SHAFT 2 : SHAFT 32 4 (SAE C) SAE J744 OCT 83 39.5 47.5 19 5/16-18 UNC - 2 Ø1 1/4 " M1 22 Ø32.11 / 31.995 35 -.2 6 SHAFT 3 : SHAFT 32 4 (SAE C) SAE J744 OCT 83 PRESSURE ANGLE 3 14 TEETH, 12/24 PITCH 38 51.6 19 5/16-18 UNC - 2 Ø1 1/4 " USEFUL LENGTH PRESSURE ANGLE 3 14 TEETH, 12/24 PITCH 55.4 58.7 FLANGE DETAILS: ISO: 319 / 4 (4 OLT FLANGE) SAE: 127 4 (C) SAE J744 Okt 83 (4 OLT FLANGE) PORT CONNECTIONS : ISO & SAE VERSIONS VERSION S INLET PORT OUTLET PORT D1 CASE DRAIN PORT D2 CASE DRAIN PORT (PLUGGED AT FACTORY) ISO SAE 2" SAE 1 ", SAE 1 1/4" M22 x 1.5 M22 x 1.5 SAE SAE 2" SAE 1 ", SAE 1 1/4" 7/8-14 UNF - 2 7/8-14 UNF - 2 6

AXIAL PISTON PUMP - J9V72 PORT DETAILS: SIDE PORTED: INLET PORT: ISO & SAE VERSIONS: SIZE ISO INLET PORT SAE A Ø5 Ø5 A D 77.8 77.8 C 42.9 C D M12 x 22 depth 1/2-13 UNC - 2 22 depth OUTLET PORT: ISO & SAE VERSIONS R Q SIZE ISO OUTLET PORT SAE A Ø25 Ø25 3.2 3.2 A D C 58.7 58.7 D E 52.4 52.4 26.2 26.2 E C Q R M1x17 depth for SAE 1 1/4 " M1x17 depth for SAE 1" 7/16-14 UNC - 2 24 depth for SAE 1 1/4" 3/8-16 UNC - 2 18 depth for SAE 1" PORT DETAILS : REAR PORTED : 58.7 25 R 26.2 Q 3.2 52.4 VERSION INLET PORT S P Q OUTLET PORT R OUTLET PORT INLET PORT 58 ISO M12 x 22 depth M1x17 depth for SAE 1 1 / 4 M1x17 depth for SAE 1 42.9 58 SAE 1/2-13 UNC -2 22 depth 7/16-14 UNC - 2 24 depth for SAE 1 1/4 3/8-16 UNC - 2 18 depth for SAE 1" 5 77.8 P S 61

AXIAL PISTON PUMP - J9V72 PERFORMANCE CURVES WITH PRESSURE CONTROL CP : NOISE LEVEL VERSES OPERATING PRESSURE WITH FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5ºC Measuring error : ± 2d (A) 76 At n=15 rpm At n=22 rpm Qmax 72 Qmax Qmin= 78 74 Qmin= Noise level DA 68 64 6 Noise level DA 7 66 62 56 3 9 15 21 28 Operating Pressure p (bar) 58 3 9 15 21 28 Operating Pressure p (bar) DRIVE POWER AND OUTPUT FLOW WITH HYDRAULIC FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5º C At n=15 rpm 16 14 12 8 7 6 Flow Q [L/min] 1 8 6 4 2 Q PQ max PQ Zero 5 4 3 2 1 Drive power P (kw) 3 9 15 21 28 Operating Pressure p (bar) At n=22 rpm 16 8 Flow Q [L/min] 14 12 1 8 6 4 2 Q PQ max PQ Zero 7 6 5 4 3 2 1 Drive power P (kw) 3 9 15 21 28 Operating Pressure p (bar) 62

AXIAL PISTON PUMP - J9V72 CONTROLS The J9V 9 model piston pump is offered with a variety of control options that are designed for optimum performance of the pump in different types of applications. CONSTANT PRESSURE CONTROL ( CP) This control maintains the pressure in a hydraulic circuit at a constant set value within the control range during pump operation irrespective of changing flow demands of the load on the pump. The pump supplies only that much volume of oil as required by the load. If the pressure in the circuit tends to raise above the set value, then the pump swash plate angle is proportionally reduced which in turn reduces the flow of oil to the load and thus preventing the pressure raise. In the starting condition when supply pressure is zero the control spring positions the swash plate at its maximum angle allowing the pump to supply the maximum volume of oil to the load in the circuit. As the pressure in circuit raises, the swash plate angle is progressively reduced by the control piston resulting in lesser oil flow to the circuit. It is further possible to restrict the min. and max. angles of the swash plate by adjustable set screws for limiting the pump flow to 5% of it s max. rating. As it is possible to set the pressure control at a pressure higher than the maximum rated pressure of the pump it is recommended that an additional pressure relief valve (set to about 2 bar more than the maximum allowed control pressure) be used in the circuit. Also to ensure that the pressure control is not set for higher than the permissible value, help of a pressure gauge mounted on the pump outlet side be considered STATIC CURVE At SPEED 15 rpm AND TEMPERATURE. OF OIL IS 5 C p Flow Q Setting range S D2 D1 2 bar Ports S D1,D2 Working pressure p 28 bar Outlet port Inlet port Drain ports (D2 Plugged) DYNAMIC OPERATION CURVES: These curves are obtained under conditions with the unit mounted inside the tank. y opening and closing the pressure relief valve load steps can be obtained. At Speed = 15 rpm and temperature of oil is 5 C the dynamic curves are: 35 3 25 Operating Pressure p (bar) 2 15 1 5 Vmax Displacement (swivel angle) Vmin swivel out time t sa Control time swivel in time t se Control time: T sa at 5 bar (725 psi) is 1 T sa at 22bar (32 psi) is 5 T se at 28 bar (zero stroke) is 25 63

AXIAL PISTON PUMP - J9V72 UNIT DIMENSIONS OF CP : SIDE PORTED : ISO & SAE VERSIONS: PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 273.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 241 REAR PORTED : ISO & SAE VERSIONS : 16 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION OUTLET PORT INLET PORT 278 64

AXIAL PISTON PUMP - J9V72 CONTROLS CONSTANT PRESSURE CONTROL REMOTELY SET ( CPR) This is same as above Constant Pressure Control except that in this a remotely mounted pressure relief valve is used as shown in the circuit along side for pressure setting of the pump. STATIC CURVE X p Flow Q Setting range 2 bar Working pressure p 28 bar Ports S D1 D2 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port UNIT DIMENSIONS OF CPR : SIDE PORTED : ISO & SAE VERSIONS : 257 273.5 ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF 179 241 PORT ' X' 65

AXIAL PISTON PUMP - J9V72 REAR PORTED : ISO & SAE VERSIONS : 112.5 (ISO) X ADJUSTMENT SCREW FOR DIFFERENTIAL PRESSURE 16 X 91.5 (SAE) PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 4 THREADED M14x1.5, 12 DEPTH OUTLET PORT INLET PORT PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 262 278 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH PRESSURE & FLOW CONTROL ( CPF / CPFR) PRESSURE & FLOW CONTROL ( CPF) LOAD SENSING : In addition to the constant pressure control this also maintains constant flow to the load. The pump flow is determined by an external orifice ( not part of pump control block) fitted in the circuit between the pump and the load as long as the load pressure is less than the set pressure. The differential pressure at the external orifice is used to regulate the pump displacement to match the load requirement.the pressure drop across the orifice is maintained constant and there by achieving constant flow to the load. If the differential pressure across the orifice tends to increase then the swash plate is swivelled to minimum angle reducing the pump flow and if the pressure differential is reducing then the swash plate is swivelled to the maximum angle increasing the pump flow to load. These corrections go on continuously until a balance is restored in at the flow control orifice. A bleed down orifice is provided at the control valve to vent the trapped pressure in the load sense line. PRESSURE & FLOW CONTROL REMOTELY- ( CPFR) This is same as above valve ( CPF) except that it has no bleed orifice connecting the load sense line to tank X Not included in supply PORTS: : Outlet port S: Inlet port D1,D2 : Drain ports (D2 plugged) X : Pilot port S D2 D1 66

AXIAL PISTON PUMP - J9V72 STATIC CURVE At Speed 15 rpm and temp. of oil at 5 C. Hysteresis and pressure rise p Q max Flow Q flow qv Q Adjustment range Q min speed n 2 bar Operating pressure p (bar) 28 bar p = 5 bar max. Max. flow deviation, qmax is.9 L/min Requirement of pilot oil for CPF ~ 4.5 L/min. (max) Requirement of pilot oil for CPFR ~3 L/min. (max) DYNAMIC OPERATING CURVE: This curve is obtained under conditions with the unit mounted inside the tank. 1 35 displacement V % 75 5 25 3 28 25 2 15 1 5 load pressure(bar) 18 swivel out time t SA control time swivel in time t SE Control time: t SA at 28 bar (4 psi) is 6 ms t SE at 28 bar stand by (4 psi stand by) is 3 ms t SE at 5 bar stand by ( 725 psi stand by) is 6 ms 67

AXIAL PISTON PUMP - J9V72 UNIT DIMENSIONS OF CPF / CPFR: SIDE PORTED: ISO & SAE VERSIONS: 257 273.5 ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. PORT ' X' 179 241 REAR PORTED : ISO & SAE VERSIONS : ADJUSTMENT SCREW FOR PRESSURE CONTROL ZERO STROKE PRESSURE X ADJUSTMENT SCREW FOR FLOW CONTROL DIFFERENTIAL PRESSURE 4 THREADED M14x1.5, 12 DEPTH 16 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION X 112.5 (ISO) 91.5 (SAE) OUTLET PORT INLET PORT PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 262 278 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 68

AXIAL PISTON PUMP - J9V72 PRESSURE, FLOW & POWER CONTROL (CFHP) This control allows to limit the pump drive power at a constant speed (rpm) to set value in relation to the pump flow and pressure (p x v = constant). Efficient power consumption is achieved with this and a constant drive torque is maintained with varying pressure and flows. Operating pressure exerts a force on a piston within the control piston on to the rocker arm. An externally adjustable spring force acts on the opposite side of this and this determines the power setting. When the force exerted by the operating pressure is more, the pilot control valve is operated by the rocker arm positioning the swash plate towards zero flow. When the pressure exerted by operating pressure is lower, the swash plate is positioned to give maximum flow. Here also it is possible to set the minimum and maximum angles of the swash plate by an external adjusting screw to limit the pump flow to 5% of it s maximum capacity. 1 Maximum power curve Flow Q (%) 75 5 25 Minimum power curve 5 1 15 2 25 28 bar Working pressure P Ports S D 2 D 1 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port 69

AXIAL PISTON PUMP - J9V72 UNIT DIMENSIONS OF CPFH : SIDE PORTED: ISO & SAE VERSIONS: POWER VALVE 124 PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE ROTATION CONTROL VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PORT 'X' 273.5 REAR PORTED: ISO & SAE VERSIONS: 69 POWER VALVE PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 48 (SAE) 51 (ISO) PILOT VALVE INSTALLED HERE FOR ANTI CLOCKWISE DIRECTION 124 X 16 13.5 OUTLET PORT INLET PORT 278 139 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 7

AXIAL PISTON PUMP - J9V99 ORDERING CODE: J 9 V 99 CPR / R - N 1 C M1 VELJAN Axial piston pump Variable displacement, Swash plate design, Working pressure 28bar. Peak pressure 35 bar. Size Displacement, Vgmax 1 cc/rev Control devices CP - Pressure control CPR - Pressure control (Remote controlled) CPF - Pressure and flow control CPFR - Pressure and flow control (X port closed) CPFH - Pressure, flow and power control. Rotation Viewed from shaft end R - Clockwise L - Counter clockwise Seals N: NR- (una-n) gasket / Shaft seal FPM F: FPM gasket / Shaft seal FPM Shaft end 1-Keyed shaft (ISO) dia. 4 2 -Splined shaft 38-4 (SAE C - C,1 1/2 ) 3 -Splined shaft 32-4 (SAE C, 1 1/4 ) Mounting flange A-ISO (2 bolt) -SAE (2 bolt) Port connections M1 - SAE side ported, Metric threads S1 - SAE side ported, UNC threads M2 - SAE rear ported, Metric threads S2 - SAE rear ported, UNC threads 71

AXIAL PISTON PUMP - J9V99 UNIT DIMENSIONS OF J9V 99 : SIDE PORTED : NOT INCLUDING VALVES ISO VERSION : 175 6 OUTLET PORT D1 152 17.5 16 45 95 Ø 125. / 124.937 1 1 D2 2 D2 18 21 1 95 INLET PORT 238 275 317 SAE VERSION: 175 6 OUTLET PORT D1 152 17.5 16 45 93 Ø 127. / 126.937 1 1 D2 2 D2 181 21 12.7 95 INLET PORT 238 275 317 72

AXIAL PISTON PUMP - J9V99 REAR PORTED : ISO VERSION : 288 175 6 D1 152 17.5 16 4 5 95 Ø 125. / 124.937 D2 2 D2 18 21 1 95 236 SAE VERSION: 288 175 6 D1 152 17.5 16 45 93 Ø 127. / 126.937 D2 2 D2 181 21 236 12.7 95 73

AXIAL PISTON PUMP - J9V99 SHAFT END DETAILS : SHAFT 1 68 1.5 12. / 11.96 -.2 43 M12 28 Ø4.11 / 39.995 8 SHAFT 2 : SHAFT 38 4 (SAE C - C) SAE J744 OCT 83 SHAFT 3 : SHAFT 32 4 (SAE C) SAE J744 OCT 83 Ø 1 1/2" 7 / 16-14 UNC - 2 5 / 16-18 UNC - 2 PRESSURE ANGLE 3 17 TEETH, 12/24 PITCH Ø 1 1/4" PRESSURE ANGLE 3 14 TEETH, 12/24 PITCH 28 19 43.6 39.5 54 47.5 61.9 55.4 74

AXIAL PISTON PUMP - J9V99 FLANGE DETAILS: ISO: 319 / 2 (2 OLT FLANGE) SAE: 127 2 (C) SAE J744 Okt 83 (2 OLT FLANGE) PORT CONNECTIONS: ISO & SAE VERSIONS: VERSION S INLET PORT OUTLET PORT D1 CASE DRAIN PORT D2 CASE DRAIN PORT (PLUGGED AT FACTORY) ISO SAE 2½ " SAE 1 1/4" M27 x 2 M27 x 2 SAE SAE 2½ SAE 1 1/4" 1 1/16-12 UNF - 2 1 1/16-12 UNF - 2 PORT DETAILS: SIDE PORTED: INLET PORT: ISO & SAE VERSIONS: SIZE ISO INLET PORT SAE ISO OUTLET PORT SAE A Ø6 Ø6 Ø32 Ø32 D A 88.9 88.9 66.7 66.7 C 5.8 5.8 31.8 31.8 C D M12 x 17 depth 1/2-13 UNC - 2 24 depth M14X19 depth 1/2-13 UNC - 2 19 depth PORT DETAILS : REAR PORTED : 66.7 Ø32 Q 31.8 VERSION INLET PORT S P OUTLET PORT Q 55 P 55 ISO M12x17 depth M14x19 depth 5.8 SAE 1/2-13 UNC - 2 24 depth 1/2-13 UNC - 2 19 depth Ø6 88.9 75

AXIAL PISTON PUMP - J9V99 PERFORMANCE CURVES WITH PRESSURE CONTROL CP : NOISE LEVEL VERSES OPERATING PRESSURE WITH FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5ºC Measuring error : ± 2d (A) 76 72 At n=15 rpm Qmax Qmin= 84 8 At n=2 rpm Qmax Qmin= Noise level DA 68 64 6 Noise level DA 76 72 68 64 56 3 9 15 21 28 Operating Pressure p (bar) 6 3 9 15 21 28 Operating Pressure p (bar) DRIVE POWER AND OUTPUT FLOW WITH HYDRAULIC FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5º C 2 At n=15 rpm 1 At n=2 rpm 2 1 18 9 18 Q 9 16 8 16 8 Flow Q [L/min] 14 12 1 8 6 4 2 Q PQ max PQ Zero 7 6 5 4 3 2 1 Drive power P (kw) 14 12 1 8 6 4 2 PQ max PQ Zero 7 6 5 4 3 2 1 Drive power P (kw) 3 9 15 21 28 Operating Pressure p (bar) 3 9 15 21 28 Operating Pressure p (bar) 76

AXIAL PISTON PUMP - J9V99 CONTROLS The J9V 9 model piston pump is offered with a variety of control options that are designed for optimum performance of the pump in different types of applications. CONSTANT PRESSURE CONTROL ( CP) This control maintains the pressure in a hydraulic circuit at a constant set value within the control range during pump operation irrespective of changing flow demands of the load on the pump. The pump supplies only that much volume of oil as required by the load. If the pressure in the circuit tends to raise above the set value, then the pump swash plate angle is proportionally reduced which in turn reduces the flow of oil to the load and thus preventing the pressure raise. In the starting condition when supply pressure is zero the control spring positions the swash plate at its maximum angle allowing the pump to supply the maximum volume of oil to the load in the circuit. As the pressure in circuit raises, the swash plate angle is progressively reduced by the control piston resulting in lesser oil flow to the circuit. It is further possible to restrict the min. and max. angles of the swash plate by adjustable set screws for limiting the pump flow to 5% of it s max. rating. As it is possible to set the pressure control at a pressure higher than the maximum rated pressure of the pump it is recommended that an additional pressure relief valve (set to about 2 bar more than the maximum allowed control pressure) be used in the circuit. Also to ensure that the pressure control is not set for higher than the permissible value, help of a pressure gauge mounted on the pump outlet side be considered STATIC CURVE At SPEED 15 rpm AND TEMPERATURE. OF OIL IS 5 C p Flow Q Setting range S D2 D1 2 bar Ports S D1,D2 Working pressure p 28 bar Outlet port Inlet port Drain ports (D2 Plugged) DYNAMIC OPERATION CURVES: These curves are obtained under conditions with the unit mounted inside the tank. y opening and closing the pressure relief valve load steps can be obtained. At Speed = 15 rpm and temperature of oil is 5 C the dynamic curves are: 35 3 25 Operating Pressure p (bar) 2 15 1 5 Vmax Displacement (swivel angle) Vmin swivel out time t sa Control time swivel in time t se Control time: T sa at 5 bar (725 psi) is 1 T sa at 22bar (32 psi) is 5 T se at 28 bar (zero stroke) is 25 77

AXIAL PISTON PUMP - J9V99 UNIT DIMENSIONS OF CP : SIDE PORTED : ISO & SAE VERSIONS: PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 295.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 33 REAR PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 16 OUTLET PORT INLET PORT 344 78

AXIAL PISTON PUMP - J9V99 CONTROLS CONSTANT PRESSURE CONTROL REMOTELY SET ( CPR) This is same as above Constant Pressure Control except that in this a remotely mounted pressure relief valve is used as shown in the circuit along side for pressure setting of the pump. STATIC CURVE X p Flow Q Setting range 2 bar Working pressure p 28 bar Ports S D1 D2 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port UNIT DIMENSIONS OF CPR : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 279 295.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. 241 33 PORT ' X' 79

AXIAL PISTON PUMP - J9V99 REAR PORTED : ISO & SAE VERSIONS : X ADJUSTMENT SCREW FOR DIFFERENTIAL PRESSURE 16 X 12 (ISO) 99 (SAE) PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 4 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION OUTLET PORT INLET PORT 327 344 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH PRESSURE & FLOW CONTROL ( CPF / CPFR) PRESSURE & FLOW CONTROL ( CPF) LOAD SENSING : In addition to the constant pressure control this also maintains constant flow to the load. The pump flow is determined by an external orifice ( not part of pump control block) fitted in the circuit between the pump and the load as long as the load pressure is less than the set pressure. The differential pressure at the external orifice is used to regulate the pump displacement to match the load requirement.the pressure drop across the orifice is maintained constant and there by achieving constant flow to the load. If the differential pressure across the orifice tends to increase then the swash plate is swivelled to minimum angle reducing the pump flow and if the pressure differential is reducing then the swash plate is swivelled to the maximum angle increasing the pump flow to load. These corrections go on continuously until a balance is restored in at the flow control orifice. A bleed down orifice is provided at the control valve to vent the trapped pressure in the load sense line. PRESSURE & FLOW CONTROL REMOTELY- ( CPFR) This is same as above valve ( CPF) except that it has no bleed orifice connecting the load sense line to tank X Not included in supply PORTS: : Outlet port S: Inlet port D1,D2 : Drain ports (D2 plugged) X : Pilot port S D2 D1 8

AXIAL PISTON PUMP - J9V99 STATIC CURVE At Speed 15 rpm and temp. of oil at 5 C. Hysteresis and pressure rise p Q max Flow Q flow qv Q Adjustment range Q min speed n 2 bar Operating pressure p (bar) 28 bar p = 5 bar max. Max. flow deviation, qmax is.9 L/min Requirement of pilot oil for CPF ~ 4.5 L/min. (max) Requirement of pilot oil for CPFR ~3 L/min. (max) DYNAMIC OPERATING CURVE: This curve is obtained under conditions with the unit mounted inside the tank. 1 35 displacement V % 75 5 25 3 28 25 2 15 1 5 load pressure(bar) 18 swivel out time t SA control time swivel in time t SE Control time: t SA at 28 bar (4 psi) is 12 ms t SE at 28 bar stand by (4 psi stand by) is 6 ms t SE at 5 bar stand by ( 725 psi stand by) is 12 ms 81

AXIAL PISTON PUMP - J9V99 UNIT DIMENSIONS OF CPF / CPFR: SIDE PORTED: ISO & SAE VERSIONS: PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 279 295.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION ADJUSTMENT SCREW FOR PRE. CONTROL - ZERO STROKE PRESSURE ADJUSTMENT SCREW FOR FLOW CONTROL- DIFFERENTIAL PRE. 241 PORT ' X' 33 REAR PORTED : ISO & SAE VERSIONS : ADJUSTMENT SCREW FOR PRESSURE CONTROL ZERO STROKE PRESSURE X ADJUSTMENT SCREW FOR FLOW CONTROL DIFFERENTIAL PRESSURE X 12 (ISO) 99 (SAE) PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 4 16 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION OUTLET PORT INLET PORT 327 344 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 82

AXIAL PISTON PUMP - J9V99 PRESSURE, FLOW & POWER CONTROL (CFHP) This control allows to limit the pump drive power at a constant speed (rpm) to set value in relation to the pump flow and pressure (p x v = constant). Efficient power consumption is achieved with this and a constant drive torque is maintained with varying pressure and flows. Operating pressure exerts a force on a piston within the control piston on to the rocker arm. An externally adjustable spring force acts on the opposite side of this and this determines the power setting. When the force exerted by the operating pressure is more, the pilot control valve is operated by the rocker arm positioning the swash plate towards zero flow. When the pressure exerted by operating pressure is lower, the swash plate is positioned to give maximum flow. Here also it is possible to set the minimum and maximum angles of the swash plate by an external adjusting screw to limit the pump flow to 5% of it s maximum capacity. 1 Maximum power curve Flow Q (%) 75 5 25 Minimum power curve 5 1 15 2 25 28 bar Working pressure P Ports S D 2 D 1 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port 83

AXIAL PISTON PUMP - J9V99 UNIT DIMENSIONS OF CPFH : SIDE PORTED: ISO & SAE VERSIONS: POWER VALVE 111 129 PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE ROTATION CONTROL VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PORT 'X' 295.5 REAR PORTED: ISO & SAE VERSIONS: 111 48 (SAE) 51 (ISO) 129 PORT 'X' 16 18.5 OUTLET PORT INLET PORT 145 344 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 7/16-2 UNF 2, 1 DEPTH 84

AXIAL PISTON PUMP - J9V135 ORDERING CODE: J 9 V 135 CPR / R - N 1 C M1 VELJAN Axial piston pump Variable displacement, Swash plate design, Working pressure 28bar. Peak pressure 35 bar. Size Displacement, Vgmax 14 cc/rev Control devices CP - Pressure control CPR - Pressure control (Remote controlled) CPF - Pressure and flow control CPFR - Pressure and flow control (X port closed) CPFH - Pressure,flow and power control. Rotation Viewed from shaft end R Clockwise L - Counter clockwise Seals N: NR- (una-n) gasket / Shaft seal FPM F: FPM gasket / Shaft seal FPM Shaft end 1-Keyed shaft (ISO) dia. 45 2 -Splined shaft 44-4 (SAE D,1 3/4 ) Mounting flange C-ISO ( 4 bolt ) D-SAE ( 4 bolt ) Port connections M1 - SAE side ported, Metric threads S1 - SAE side ported, UNC threads M2 - SAE rear ported, Metric threads S2 - SAE rear ported, UNC threads 85

AXIAL PISTON PUMP - J9V135 UNIT DIMENSIONS OF J9V 135 : SIDE PORTED : NOT INCLUDING VALVES ISO VERSION : 113.5 18 275 D1 D2 193.8 275 329.5 147.8 D3 2 158.4 4 5 118.5 132.5 265 6.4 21 41.8 158.4 Ø18. / 179.937 1 2 226 VIEW 'X' VIEW 'X' SAE VERSION: 113.5 2 275 D1 D2 193.8 275 329.5 147.8 D3 2 161.6 45 118.5 132.5 265 6.4 21 41.8 161.6 Ø152.4 152.337 12.7 2 226 VIEW 'X' VIEW 'X' 86

AXIAL PISTON PUMP - J9V135 REAR PORTED : ISO VERSION : 113.5 18 D1 D2 193.8 288 147.8 D3 2 158.4 45 118.5 6.4 21 132.5 41.8 265 Ø18. 179.937 1 158.4 2 226 VIEW 'X' VIEW 'X' SAE VERSION: 113.5 2 D1 288 D3 2 161.6 4 5 118.5 265 D2 193.8 147.8 41.8 132.5 6.4 21 Ø152.4 152.337 12.7 161.6 2 226 VIEW 'X' VIEW 'X' 87

AXIAL PISTON PUMP - J9V135 SHAFT END DETAILS : SHAFT 1 8 1.5 14. / 13.957 -.2 48.5 M18 36 Ø45.11 / 44.995 92 SHAFT 2 : SHAFT 44 4 (SAE D) SAE J744 OCT 83 Ø 1 3/4 " PRESSURE ANGLE 3 13 TEETH, 8 / 16 PITCH 5/8-11 UNC - 2 36 55 67 75 FLANGE DETAILS: ISO: 319 / 4 (4 OLT FLANGE) SAE: 152 4 (D ) SAE J744 Okt 83 (4 OLT FLANGE) 88

AXIAL PISTON PUMP - J9V135 PORT CONNECTIONS: ISO & SAE VERSIONS: VERSION S INLET PORT OUTLET PORT D1 CASE DRAIN PORT D2 CASE DRAIN PORT D3 CASE DRAIN PORT ISO SAE 2 1/2" SAE 1 1/4 " M27 x 2 M27 x 2 M27 x 2 SAE SAE 2 1/2" SAE 1 1/4 " 1 1/16-12 UNF - 2 1 1/16-12 UNF - 2 1 1/16-12 UNF - 2 PORT DETAILS: SIDE PORTED: ISO & SAE VERSIONS: D SIZE INLET PORT ISO SAE OUTLET PORT ISO SAE A Ø6 Ø6 Ø32 Ø32 A 88.9 88.9 66.7 66.7 C 5.8 5.8 31.8 31.8 C D M12 x 17 depth 1/2-13 UNC - 2 24 depth M14X19 depth 1/2-13 UNC - 2 24 depth PORT DETAILS : REAR PORTED : 31.8 Q 62 32 66.7 VERSION INLET PORT S P OUTLET PORT Q 49 63 ISO M12x17 depth M14x19 depth S 88.9 SAE 1 / 2-13 UNC -2 24 DEPTH 1/2-13 UNC - 2 24 depth P 5.8 89

AXIAL PISTON PUMP - J9V135 PERFORMANCE CURVES WITH PRESSURE CONTROL CP : NOISE LEVEL VERSES OPERATING PRESSURE WITH FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5ºC Measuring error : ± 2d (A) At n=15 rpm At n=18 rpm 84 8 Qmax 84 8 Qmax Qmin= Qmin= 76 Noise level DA 76 72 68 Noise level DA 72 68 64 64 3 9 15 21 28 6 3 9 15 21 28 Operating Pressure p (bar) Operating Pressure p (bar) DRIVE POWER AND OUTPUT FLOW WITH HYDRAULIC FLUID ISO VG 46 DIN 51519 AT TEMP, t = 5º C At n=15 rpm At n=18 rpm 26 13 26 13 24 12 24 12 22 11 22 Q 11 2 1 2 1 18 Q 9 18 9 Flow Q [L/min] 16 14 12 1 8 6 PQ max 8 7 6 5 4 3 Drive power P (kw) Flow Q [L/min] 16 14 12 1 8 6 PQ max 8 7 6 5 4 3 Drive power P (kw) 4 PQ Zero 2 4 PQ Zero 2 2 1 2 1 3 9 15 21 28 3 9 15 21 28 Operating Pressure p (bar) Operating Pressure p (bar) 9

AXIAL PISTON PUMP - J9V135 CONTROLS The J9V 9 model piston pump is offered with a variety of control options that are designed for optimum performance of the pump in different types of applications. CONSTANT PRESSURE CONTROL ( CP) This control maintains the pressure in a hydraulic circuit at a constant set value within the control range during pump operation irrespective of changing flow demands of the load on the pump. The pump supplies only that much volume of oil as required by the load. If the pressure in the circuit tends to raise above the set value, then the pump swash plate angle is proportionally reduced which in turn reduces the flow of oil to the load and thus preventing the pressure raise. In the starting condition when supply pressure is zero the control spring positions the swash plate at its maximum angle allowing the pump to supply the maximum volume of oil to the load in the circuit. As the pressure in circuit raises, the swash plate angle is progressively reduced by the control piston resulting in lesser oil flow to the circuit. It is further possible to restrict the min. and max. angles of the swash plate by adjustable set screws for limiting the pump flow to 5% of it s max. rating. As it is possible to set the pressure control at a pressure higher than the maximum rated pressure of the pump it is recommended that an additional pressure relief valve (set to about 2 bar more than the maximum allowed control pressure) be used in the circuit. Also to ensure that the pressure control is not set for higher than the permissible value, help of a pressure gauge mounted on the pump outlet side be considered STATIC CURVE At SPEED 15 rpm AND TEMPERATURE. OF OIL IS 5 C p Flow Q Setting range S D2 D1 2 bar Ports S D1,D2 Working pressure p 28 bar Outlet port Inlet port Drain ports (D2 Plugged) DYNAMIC OPERATION CURVES: These curves are obtained under conditions with the unit mounted inside the tank. y opening and closing the pressure relief valve load steps can be obtained. At Speed = 15 rpm and temperature of oil is 5 C the dynamic curves are: 35 3 25 Operating Pressure p (bar) 2 15 1 5 Vmax Displacement (swivel angle) Vmin swivel out time t sa Control time swivel in time t se Control time: T sa at 5 bar (725 psi) is 1 T sa at 22bar (32 psi) is 5 T se at 28 bar (zero stroke) is 25 91

AXIAL PISTON PUMP - J9V135 UNIT DIMENSIONS OF CP : SIDE PORTED : ISO & SAE VERSIONS: PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 324.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 294 REAR PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION OUTLET PORT INLET PORT S 345.5 92

AXIAL PISTON PUMP - J9V135 CONTROLS CONSTANT PRESSURE CONTROL REMOTELY SET ( CPR) This is same as above Constant Pressure Control except that in this a remotely mounted pressure relief valve is used as shown in the circuit along side for pressure setting of the pump. STATIC CURVE X p Flow Q Setting range 2 bar Working pressure p 28 bar Ports S D1 D2 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port UNIT DIMENSIONS OF CPR : SIDE PORTED : ISO & SAE VERSIONS : PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 38 324.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION ADJUSTMENT SCREW FOR MAX. PRE. CUTOFF ADJUSTMENT SCREW FOR DIFFERENTIAL PRE. 232 PORT ' X' 294 93

AXIAL PISTON PUMP - J9V135 REAR PORTED : ISO & SAE VERSIONS : X ADJUSTMENT SCREW FOR DIFFERENTIAL PRESSURE 4 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION INLET PORT OUTLET PORT PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 329 345.5 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 9/16-18 UNF 2, 13 DEPTH PRESSURE & FLOW CONTROL ( CPF / CPFR) PRESSURE & FLOW CONTROL ( CPF) LOAD SENSING : In addition to the constant pressure control this also maintains constant flow to the load. The pump flow is determined by an external orifice ( not part of pump control block) fitted in the circuit between the pump and the load as long as the load pressure is less than the set pressure. The differential pressure at the external orifice is used to regulate the pump displacement to match the load requirement.the pressure drop across the orifice is maintained constant and there by achieving constant flow to the load. If the differential pressure across the orifice tends to increase then the swash plate is swivelled to minimum angle reducing the pump flow and if the pressure differential is reducing then the swash plate is swivelled to the maximum angle increasing the pump flow to load. These corrections go on continuously until a balance is restored in at the flow control orifice. A bleed down orifice is provided at the control valve to vent the trapped pressure in the load sense line. PRESSURE & FLOW CONTROL REMOTELY- ( CPFR) This is same as above valve ( CPF) except that it has no bleed orifice connecting the load sense line to tank X Not included in supply PORTS: : Outlet port S: Inlet port D1,D2 : Drain ports (D2 plugged) X : Pilot port S D2 D1 94

AXIAL PISTON PUMP - J9V135 STATIC CURVE At Speed 15 rpm and temp. of oil at 5 C. Hysteresis and pressure rise p Q max Flow Q flow qv Q Adjustment range Q min speed n 2 bar Operating pressure p (bar) 28 bar p = 5 bar max. Max. flow deviation, qmax is.9 L/min Requirement of pilot oil for CPF ~ 4.5 L/min. (max) Requirement of pilot oil for CPFR ~3 L/min. (max) DYNAMIC OPERATING CURVE: This curve is obtained under conditions with the unit mounted inside the tank. 1 35 displacement V % 75 5 25 3 28 25 2 15 1 5 load pressure(bar) 18 swivel out time t SA control time swivel in time t SE Control time: t SA at 28 bar (4 psi) is 12 ms t SE at 28 bar stand by (4 psi stand by) is 6 ms t SE at 5 bar stand by ( 725 psi stand by) is 12 ms 95

AXIAL PISTON PUMP - J9V135 UNIT DIMENSIONS OF CPF / CPFR: SIDE PORTED: ISO & SAE VERSIONS: PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 38 324.5 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION ADJUSTMENT SCREW FOR PRE. CONTROL - ZERO STROKE PRESSURE ADJUSTMENT SCREW FOR FLOW CONTROL- DIFFERENTIAL PRE. 232 PORT ' X' 294 REAR PORTED : ISO & SAE VERSIONS : ADJUSTMENT SCREW FOR PRESSURE CONTROL ZERO STROKE PRESSURE X ADJUSTMENT SCREW FOR FLOW CONTROL DIFFERENTIAL PRESSURE OUTLET PORT PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION 4 PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION INLET PORT 329 345.5 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 9/16-2 UNF 2, 13 DEPTH 96

AXIAL PISTON PUMP - J9V135 PRESSURE, FLOW & POWER CONTROL (CFHP) This control allows to limit the pump drive power at a constant speed (rpm) to set value in relation to the pump flow and pressure (p x v = constant). Efficient power consumption is achieved with this and a constant drive torque is maintained with varying pressure and flows. Operating pressure exerts a force on a piston within the control piston on to the rocker arm. An externally adjustable spring force acts on the opposite side of this and this determines the power setting. When the force exerted by the operating pressure is more, the pilot control valve is operated by the rocker arm positioning the swash plate towards zero flow. When the pressure exerted by operating pressure is lower, the swash plate is positioned to give maximum flow. Here also it is possible to set the minimum and maximum angles of the swash plate by an external adjusting screw to limit the pump flow to 5% of it s maximum capacity. 1 Maximum power curve Flow Q (%) 75 5 25 Minimum power curve 5 1 15 2 25 28 bar Working pressure P Ports S D 2 D 1 S D1,D2 X Outlet port Inlet port Drain ports (D2 Plugged) Pilot port 97

AXIAL PISTON PUMP - J9V135 UNIT DIMENSIONS OF CPFH : SIDE PORTED: ISO & SAE VERSIONS: 324.5 PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE ROTATION CONTROL VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION POWER VALVE REAR PORTED: ISO & SAE VERSIONS: POWER VALVE X PILOT VALVE INSTALLED HERE FOR COUNTER CLOCKWISE DIRECTION OUTLET PORT PILOT VALVE INSTALLED HERE FOR CLOCKWISE DIRECTION 4 INLET PORT 329 345.5 PORT X DETAILS: ISO : M14x1.5, 12 DEPTH SAE : 9/16-2 UNF 2, 13 DEPTH (SIDE PORTED) 7/16-18 UNF 2, 1 DEPTH (REAR PORTED) 98

AXIAL PISTON PUMP - J9V TROULESHOOTING The information contained in this section provides a guide for troubleshooting the pumps. It is a problem solving tool aimed at reducing unnecessary machine downtime. Following the fault-logic approach will assist in the expedient correction of system problems. Various pressure and vacuum gauge readings can be a great asset in troubleshooting problems with the pump or support system. It will be necessary to keep a high pressure gauge into the system pressure line to check the setting of the system relief valve as well as control settings. Measuring the inlet pressure will help locate restrictions in the inlet lines, filter, etc. NOTE:- Snubbers are recommended to protect gauges. Gauge calibration is also necessary to ensure accuracy of readings. A. HIGH INLET VACUUM CHECK OIL TEMPERATURE COLD ALLOW SYSTEM TO WARM UP OK INSPECT INLET FILTER CLOGGED OR TOO SMALL OF MESH REPLACE FILTER OK CHECK OIL VISCOSITY AOVE 15-275 SSU AT 1?F REPLACE OIL OK INSPECT INLET PIPING TOO LONG OR SMALL DIAMETER REPAIR 99

AXIAL PISTON PUMP - J9V. NOISY PUMP (EXCESIVE NOISE AND / OR VIRATION) CHECK OIL IN RESERVOIR LOW ALLOW SYSTEM TO WARM UP OK Loose fitting in suction or return line. AIR IN SYSTEM OK Low fluid level. Turbulent flow. Fluid level below return line. Strainer in inlet line trapping air. High pressure drop in the inlet line due to pressurized reservoir. PURGE AIR AND TIGHTEN FILLTING CHECK PUMP INLET PRESSURE LOW CORRECT OK INSPECT SHAFT COUPLING Damaged coupling Incorrect / bad installation. (alignment) Mounting distortion. High overhung loads. Axial interference. REPAIR OR REPLACE OK MECHANICAL FAULT IN THE PUMP. Looseness between piston & shoe. earing failure. Incorrect port plate rotation. Worn out parts in swash plate control. REPAIR OR REPLACE 1

AXIAL PISTON PUMP - J9V C. EXCESSIVE HEATING OF FLUID (SYSTEM GETTING HEATED UP) OIL RESERVOIR Too little oil Improper baffle Heat radiation from adjacent machinery Fill to proper level Repair baffle Prevent radiation from surroundings. OK INSPECT HEAT EXCHANGER Inlet water too hot Water line closed or too little flow Efficiency low by scales/deposits in the heat exchanger tube Dusty fan. Supply cold water. Regulate water flow Remove scales/deposits Clean fan & other elements OK CHECK SYSTEM RELIEF VALVE SETTING OK If system Relief Valve is set below the pressure compensator control, the valve can open prematurely and result in heat buildup. The relief valve should be set a least 3 PSI above desired pressure compensator setting. ADJUST SETTING CHECK PUMP INLET PRESSURE LOW CORRECT OK CHECK CONTROL VALVE If the compensator is inoperable the relief valve will open in response to excessive pressure and create heat in the system (As stated in relief valve) REPAIR OK CHECK FOR INTERNAL SYSTEM LEAKS Check case drain flow. Viscosity of oil is low. In correct pump assembly. Check port timing. Check working clearance in rotating & translating parts. REPAIR AS REQUIRED 11

AXIAL PISTON PUMP - J9V D. SYSTEM RESPONSE IS SLUGGISH. CHECK SYSTEM RELIEF VALVE SETTING LOW ADJUST SETTING OK CHECK CONTROL SETTING INCORRECT ADJUST SETTING OK CHECK CONTROL SIGNAL PRESSURES INCORRECT REPAIR OK DEFECTIVE CONTROL REPLACE CONTROL OK INTERNAL SYSTEM LEAKS HIGH LEAKAGE REPAIR AS REQUIRED 12

AXIAL PISTON PUMP - J9V E. LOW PUMP OUTPUT FLOW CHECK OIL LEVEL IN RESERVOIR LOW FILL TO PROPER LEVEL OK CHECK SYSTEM RELIEF VALVE SETTING LOW ADJUST SETTING OK CHECK PUMP CONTROL SETTING INCORRECT ADJUST SETTING OK CHECK PUMP INLET PRESSURE LOW CORRECT OK CHECK INPUT SPEED LOW CORRECT OK CHECK MAXIMUM FLOW ADJUSTMENT INCORRECT ADJUST SETTING 13

AXIAL PISTON PUMP - J9V F. COMPENSATOR VALVE DOES NOT OPERATE CHECK CONTROL SETTING INCORRECT ADJUST SETTING OK INSPECT COMPENSATOR SPRING WRONG PRESSURE RANGE REPLACE OK INSPECT FOR LEAKAGE CORRECT OK INSPECT COMPENSATOR SPOOL DAMAGED OR CONTAMINATED REPAIR OR REPLACE OK INSPECT FLOW CONTROL CYLINDER DAMAGED OR CONTAMINATED REPAIR OR REPLACE 14

AXIAL PISTON PUMP - J9V COMMON CAUSES OF WEAR AND PARTS DAMAGE AFFECTED PART PROLEM PROALE CAUSE Shaft roken A. Pump is used at higher than maximum working pressure.. Seizure due to lack of lubrication. arrel Seizure A. Oil contamination Port Plate Wear A. Excessive oil temperature.. Cavitation. C. Improper case drain filling D. Excessive speed E. Excessive pressure. earings Damage A. Improper shaft alignment. Abnormal Pressure C. Insufficient end play on some models. Oil Seals Damage A. Excessive case leakage. Excessive case pressure. C. Improper shaft alignment Control Cylinder Cylinder rod Wear A. Oil contamination 15