" " Series Variable Displacement Piston Pumps

" " Series Variable Displacement Piston Pumps Compensator Type Constant Power (Torque) Control Type Load Sensing Type Pump Type Graphic Symbol Geometric Displacement cu. in./rev...5 5 5 5 5 cm /rev Maximum Operating MPa (PSI) Page AH6 AH7 AH56 Single Pump M O AH7 AH 5 (5) AH5 AH Three control types are available such as pressure compensator type. Refer to page. 7

Hydraulic Fluids Hydraulic Fluids Use petroleum base oils such as anti-wear type hydraulic oils or R & O (Rust and Oxidation inhibitor) type hydraulic oils equivalent to ISO VG- or 6. The recommended viscosity range is from to mm /s (9 to SSU) and temperature range is from to C ( to F), both of which have to be satisfied for the use of the above hydraulic oils. Control of Contamination Due caution must be paid to maintaining control over contamination of the operating oil which can otherwise lead to breakdowns and shorten the life of the unit. Please maintain the degree of contamination within NAS Grade. The suction port must be equipped with at least a µm (5 mesh) reservoir type filter and the return line must have a line filter of under µm. Instructions Mounting When installing the pump the filling port should be positioned upwards. Alignment of Shaft Employ a flexible coupling whenever possible, and avoid any stress from bending or thrust. Maximum permissible misalignment is less than. mm (.9 inches) TIR and maximum permissible misangular is less than.. Suction Permissible suction pressure at suction port of the pump is between -6.7 and +5 kpa (5 in.hg Vacuum and 7 PSIG). In case of the speed is over r/min, adjust the pressure to +5 kpa ( to 7 PSIG). For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used. Make sure that the height of the pump suction port is whithin one metre (.ft.) from the oil level in the reservoir. Hints on Piping When using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise. Whenever there is fear of excessive load, please use rubber hoses. Suction Piping In case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line. Drain Piping Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than. MPa (5 PSI) and surge pressure of less than.5 MPa (7 PSI). Length of piping should be less than m (. ft.), and the pipe end should be submerged in oil. Model AH6 AH7 AH56 AH [Recommended Drain Piping Size] Japnese Std. "JIS" & European Design Std. Fitting Size N.American Design Std. / SAE # [Inside Dia. mm (.7 in.) or more] / SAE # [Inside Dia. 6 mm (.6 in.) or more] Inside Dia. of Pipe mm (.7 in.) or more 9 mm (.75 in.) or more Safety Valve When delivery line is blocked suddenly, surge pressure is occurred so a safety valve should be set in the circuit to eliminate any damage on equipment and piping. Bleeding Air It may be necessary to bleed air from pump case and outlet line to remove causes of vibration. Starting Before first staring, fill pump case with clean operating oil via the fill port. In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the tank or the actuator moves in a free load. [Volume of Pre-fill Oil Required] Model Volume cm (in. ) AH6 (.) AH7 7 (.7) AH56 9 (5.9) AH7 (79.) AH 7 () AH5 (6) AH (95)

A"AH" Series PISTON PUMPS Setting Discharge and Delivery At the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure. Adjust the preset delivery and pressure to meet your system requirements. Adjustment of Discharge Turning the adjustment screw clockwise, increases pressure. Volume adjusted by each full turn of the pressure adjustment screw Adjustment of Delivery Turning the flow adjustment screw clockwise, decreases delivery. The minimum adjustable flow and adjustable volume of each full turn of the delivery adjustment screw AH6/AH7/AH56- AH7/AH/AH5- AH- Adjustment Volume MPa (PSI) 5.5 (7) 6. (95) 5.7 () Model Numbers AH6 AH7 Adjustable volumre with each full turn of the adjustment screw cm /rev (cu.in./rev). (.5). (.) Minimum adjustment flow cm /rev (cu.in./rev) (.) 6 (.976) AH56. (.56) 5 (.) AH7.9 (.99) 5 (.75) AH 6. (.7) 6 (.) AH5 9. (.57) 95 (5.) AH. (.69) 5 (7.6) Flow Adjustment Screw Protrusion Length "L" vs. Geometric Displacement (reference) cm /rev cu.in./rev AH L Cover Geometric Displacement 6 AH5 AH AH7 AH56 Lock Nut Retainer 5 AH7 AH6 5 mm...6. Inches Adjustment Screw Protrusion Length "L" 9

Spool Compensator Valve Adj. Screw Control Piston Drain Port Pivot Shaft OUT IN Port Plate Cylinder Block Spring Spring Piston Ass'y Cradle Slipper Retainer Control Type Features High performance at maximum pressure 5MPa Volumetric efficiency is over 95% and overall efficiency is more than 9% at r/min. "AH7" type performance charateristics N= r/min Volumetric Efficiency Overall Efficiency M P S DR M PP P PP L P Efficiency % 5 5 5 5 MPa M S DR M S DR Compact size AH series are compact in size because output / mass ratio is large. "" Compensator Type "9" Constant Power Control Type "" Load Sensing Type

A"AH" Series PISTON PUMPS Control Type Control Type Graphic Symbols Performance Characteristics Explanation Page When the system pressure increases and comes close to the preset cut-off pressure, the pump flow decreases "" Compensator M automatically while maintaining the set pressure as it Type is. O This type of control can control the pump input power according to the motor output. When the system pressure increases, the pump swash Constant Power "9" (Torque) Control Type plate tilt angle (output flow) decreases, in correspondence to predetermined shaft input values. This type of control can enable one pump to act as two pumps (low-pressure and large-flow/high-pressure and small-flow). Therefore, the motor capacity can be reduced. This is an energy-saving type control which maintains the pump flow and load pressure at the absolute minimum necessary level to operate the actuator. This type of control automatically regulates the output "" flow so that the inlet-outlet differential pressure of the Load Sensing flow control valve at the output side is constant. To do Type so, the load pressure must be introduced to the load 5 sensing port "L" of the pump through the external piping. This type of control provides the remote control of the full cut-off pressure by connecting a remote control relief valve to the pilot port "PP". A flow control valve is not included with the pump. Install the valve separately. Availability of Control Type Mark " " in the table below refers to standard model. AH 6 Geometric Displacement cm /rev (cu. in./rev) 6. (.995) "" Compensator Type "9" Constant Power (Torque) Control Type "" Load Sensing Type AH 7 AH 56 AH 7 AH AH5 AH 7. (.6) 56. (.) 7.7 (.).5 (6.) 5. (.6).7 (.)

-Single Pump, Compensator Type Graphic Symbol M O Specifications Geometric Displacement cm /rev (cu.in./rev) Minimum Adj. Flow cm /rev (cu.in./rev) Operating MPa (PSI) Rated Intermittent Shaft Speed Range r/min Max. Min. Approx. Mass kg (lbs.) Flange Mtg. Foot Mtg. AH 6- * RKK- * AH 7- * RKK- * AH 56- * RKK- * AH 7- * RKK- * AH- * RKK- * AH5- * RKK- * AH- * RKK- * 6. (.995) 7. (.6) 56. (.) 7.7 (.).5 (6.) 5. (.6).7 (.). (.) 6. (.976) 5. (.) 5. (.75) 6. (.) 95. (5.) 5. (7.6) () 5 (5) 7 5.5 (.) 9.5 (.) 5.7 (56.7) 5. (77.).6 (9.). () 7. (55). (5.6) 7. (59.5). (7.).5 (9.7) 7.6 (). (9) 9. (7). Consult Yuken when pump is used over rated pressure because there is a restriction on operating condition.. The maximum shaft speeds shown in the above table are at suction pressure kpa ( PSIG).. The table above shows specifications for using petroleum based oils. Pumps (customized design) for special fluids are also available. Their operating pressure and maximum shaft speed however differ from the values in the table above depending on the fluid type. Range of operating temperature and viscosities may differ from those of petroleum based oils due to their characteristics. Specifications and Design numbers for Special Fluids Type of Fluids Operating MPa (PSI) Rated Intermittent Rated Allowable Maximum Shaft Speed r/min Max. Temperature Range C ( F) Viscosity Range mm /s (SSU) Design Numbers for Special Fluid (Occasion of Japanese Std. "JIS") Water-Glycols Phosphate Ester Type (5) (5) (5) (5) () () - 5 ( - ) - ( - ) - (9-97) 6 Polyol Ester Type (5) 5 () - ( - ) - (9-97) 5. As the specific gravities of water-glycol fluids and phosphate ester type fluids are higher than one, an overhead reservoir is required when pumps are operated at 5 r/min or more.. For the design numbers of pumps for European Design and North American Design Standards, please contact us. Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Model Number Designation AH6 Series Number AH6 (6. cm /rev) -F Mounting R Direction of Rotation K K - Pres. Adj. Range MPa (PSI) Design Number Control Type Shaft Extension Design Std. * AH7 (7. cm /rev) F: Flange Mtg. AH56 (56. cm /rev) AH7 (7.7 cm /rev) AH (.5 cm /rev) AH5 (5. cm /rev) AH (.7 cm /rev) L: Foot Mtg. F: Flange Mtg. L: Foot Mtg. Viewed from Shaft End R: Clockwise (Normal) : Compensator Type K: 5-5 (75-5) K : Keyed Shaft K : Keyed Shaft.5mm (.75 IN.) Dia. 5 K: Keyed Shaft 5.mm (. IN.) Dia. Refer to. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.. We can also supply spline-type shaft extension. Consult Yuken for details.. Design Standards: None... Japanese Standard "JIS"... European Design Standard 95... N. American Design Standard (Applicable only for AH6/7/56/7) 95... N. American Design Standard (Applicable only for AH/5/). Mounting type "L" is not available for N. American Design Standard. 5. Shaft extension "K" is applicable only for N. American Design Standard. Pipe Flange Kits Pipe flange kits are available. When ordering, specify the kit number from the table below. Pump Model Numbers Name of Port Japanese Std. "JIS" Threaded Connection Socket Welding Butt Welding Japanese Japanese N. Ameraican N. Ameraican N. Ameraican European Std. "JIS" & Std. "JIS" & Design Design Design Design Std. European European Standard Design Std. Standard Design Std. Standard Suction AH6- * R F5--A- F5--A- F5--B- F5--B-9 Discharge F6-6-A-M- F6-6-A-M- F6-6-B-M- F6-6-B-U-9 F5--C- F5--C-9 Suction F5--A- F5--A- F5--B-9 F5--C- F5--C-9 AH7- * R F5--B- Discharge F6--A-M- F6--A-M- F6--B-M- F6--B-U-9 Suction F5--C-9 AH56- * R F5--A- F5--A- F5--B- F5--B-9 F5--C- Discharge F6--A-M- F6--A-M- F6--B-M- F6--B-U-9 Suction F5-6-C-9 AH7- * R F5-6-A- F5-6-A- F5-6-B- F5-6-B-9 F5-6-C- Discharge F6--A-M- F6--A-M- F6--B-M- F6--B-U-9 AH- Suction F5--C-9 AH5- * R F5--A- F5--A- F5--B- F5--B-9 F5--C- R Discharge F6--A-M- F6--A-M- F6--B-M- F6--B-U-9 Suction AH- * R F5--A- F5--A- F5--B- F5--B-9 Discharge F6--A-M- F6--A-M- F6--B-M- F6--B-U-9. These flanges are with tapered threaded port, maximum pressure is restricted at MPa (5 PSI).. As dimensions of the surface of pipe flanges are conformed to the SAE standards mentioned below, the pipe flanges conforming to the SAE standards can be used. Suction Port: SAE Bolt Split Flange (Standard Series) Discharge Port: SAE Bolt Split Flange (High Series) Details of pipe flange kits are shown on page & 9. Single Pump, Compensator Type

Response Characteristics Change in Accordance with Circuits and Operating Conditions. Test Circuit and Conditions Circuit Size of High Rubber House Model High Rubber Housea AH6 /B 5 mm (.9 ft.) SOL High Rubber Hose AH7/56/7 /B mm (6.6 ft.) AH/5 -/B mm (6.6 ft.) AH -/B 5 mm (. ft.) M O Conditions Drive Speed: 5 r/min Hydraulic Fluid: ISO VG Oil Oil Temperature: C ( F) [Viscosity mm /s (5 SSU)] Result of Measurement t Ps t Model AH 6 Response Time ms t t Ps Overshoot Pres. MPa (PSI).5 (6) MPa ( PSI) AH 7 AH 56 5 9.5 (5) 7.5 () MPa (9PSI) MPa (9PSI) AH 7 5. (5) SOL OFF Time ON OFF AH 7 7. (595) AH5 7.5 () AH 7. (7) Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Typical Performance Characteristics of Type "AH6" at Viscosity mm /s (5 SSU) [ISO VG oils, C ( F)] Performance Characteristic Curve Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency % % % N=5 r/min N= r/min N= r/min Efficiency Overall Efficiency 5 5 5 5 MPa 6 Efficiency Overall Efficiency 5 5 5 5 MPa 6 Efficiency Overall Efficiency 6 5 5 5 5 MPa 5 5 Pressusre 6 5 PSI N=5 r/min MPa (PSI) 5 (5) (5) () 5 () (9) 5 () (5) 5 ( 7) 5 5 6 5 5 Pressusre 5 PSI N= r/min 5 5 MPa (PSI) 5 (5) (5) () 5 () (9) 5 () (5) 5 ( 7) 5 Pressusre 5 PSI N= r/min MPa (PSI) 5 5 5 5 5 (5) (5) () 5 () (9) 5 () (5) 5 ( 7) 5 5 6 7 5 6 7 6 6 Note) The dotted line in the graph indicates less than minimum adjustable flow. Power Power 6 5 5 r/min r/min 5 r/min 5....6.. Drain Drain r/min r/min 5 r/min r/min r/min 5 r/min 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI 5 PSI Noise Level [One metre (. ft.) horizontally away from pump head cover] db(a) db(a) N=5 r/min N= r/min db(a) N=5 r/min Noise Level 7 Noise Level 7 Noise Level 7 5 5 5 5 5 MPa 5 5 5 5 5 MPa 5 5 5 5 5 MPa 5 PSI 5 PSI 5 PSI Single Pump, Compensator Type 5

Typical Performance Characteristics of Type "AH7" at Viscosity mm /s (5 SSU) [ISO VG oils, C ( F)] Performance Characteristic Curve Efficiency % Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency N=5 r/min % % N= r/min N=7 r/min Overall Efficiency 6 5 5 5 5 MPa Efficiency Overall Efficiency 6 5 5 5 5 MPa Efficiency Overall Efficiency 5 5 5 5 MPa 6 5 5 Pressusre 5 5 PSI N=5 r/min MPa(PSI) 5 (5) (5) () 5 () (9) 5 5 () (5) 5 5 ( 7) 5 5 5 5 55 7 5 5 Pressusre 5 PSI N= r/min MPa(PSI) 5 (5) (5) () 5 () (9) 5 () (5) 5 ( 7) 5 7 9 7 5 65 5 Pressusre 5 PSI N=7 r/min MPa(PSI) 5 (5) (5) () 5 () (9) 5 () (5) 5 ( 7) 5 7 9 Power 6 6 6 Power 6 7 r/min r/min 5 r/min 5 5 5 5 MPa 6 6 Note) The dotted line in the graph indicates less than minimum adjustable flow....6 6 Drain Drain... 7 r/min r/min 5 r/min 6 7 r/min r/min 5 r/min 5 5 5 5 MPa 5 PSI 5 PSI Noise Level Noise Level [One metre (. ft.) horizontally away from pump head cover] db(a) db(a) N=5 r/min N= r/min 7 Noise Level 7 Noise Level db(a) 7 N=5 r/min 5 5 5 5 5 5 5 MPa 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI 5 PSI 5 PSI 6 Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Typical Performance Characteristics of Type "AH56" at Viscosity mm /s (5 SSU) [ISO VG oils, C ( F)] Power Performance Characteristic Curve Efficiency % Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency N=5 r/min % % N= r/min N=5 r/min Overall Efficiency 5 5 5 5 MPa 5 5 5 5 MPa 5 5 5 5 MPa Pressusre 5 PSI 6 Efficiency Overall Efficiency Pressusre 5 PSI 6 Efficiency Overall Efficiency Pressusre 5 PSI N=5 r/min 9 MPa(PSI) 5 (5) N=5 r/min N= r/min (5) 7 7 7 () MPa(PSI) 5 (5) 5 () MPa(PSI) (5) 5 (5) 5 5 () 5 (9) (5) 5 () () 5 () 5 () (9) (9) 5 () (5) 5 () (5) (5) 5 ( 7) 5 ( 7) 5 ( 7) 5 7 9 5 7 9 7 9 6 6 6 Note) The dotted line in the graph indicates less than minimum adjustable flow. Power 5 r/min. 6 r/min 5 r/min 5 r/min.6 6 5, r/min. 5, r/min. 5 r/min. 5 5 5 5MPa 5 5 5 5 MPa Drain Drain 6 5 PSI 5 PSI Noise Level [One metre (. ft.) horizontally away from pump head cover] db(a) db(a) N=5 r/min N= r/min 9 9 db(a) 9 N=5 r/min Noise Level 7 Noise Level 7 Noise Level 7 5 5 5 5 5 5 5 MPa 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI 5 PSI 5 PSI Single Pump, Compensator Type 7

Typical Performance Characteristics of Type "AH7" at Viscosity mm /s (5 SSU) [ISO VG oils, C ( F)] Power Performance Characteristic Curve Efficiency % 7 5 Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency N=5 r/min % % N= r/min N= r/min 9 N=5 r/min 7 5 5 7 9 5 5 7 9 5 6 6 6 6 6 Note) The dotted line in the graph indicates less than minimum adjustable flow. 9 N= r/min MPa(PSI) 5 (5) 7 5 N= r/min MPa(PSI) 5 (5) r/min.6 6 r/min. 5 r/min r/min. 6 r/min. 5 r/min r/min. r/min.6 6 5 r/min 6... 5 5 5 5MPa 5 5 5 5 MPa 5 PSI 5 PSI db(a) 9 Overall Efficiency MPa(PSI) 5 (5) (5) () 5 () (9) 5 () (5) 5 ( 7) N=5 r/min Efficiency db(a) 9 Overall Efficiency (5) () 5 () (9) 5 () (5) 5 ( 7) N= r/min 6 db(a) 9 Overall Efficiency 5 5 5 5 MPa 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI Pressusre 5 PSI Pressusre 5 PSI Pressusre Power Drain Drain Noise Level [One metre (. ft.) horizontally away from pump head cover] Efficiency (5) () 5 () (9) 5 () (5) 5 ( 7) N= r/min 6 Noise Level 7 Noise Level 7 Noise Level 7 5 5 5 5 5 5 5 MPa 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI 5 PSI 5 PSI Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Typical Performance Characteristics of Type "AH" at Viscosity mm /s (5 SSU) [ISO VG oils, C ( F)] Performance Characteristic Curve Efficiency % Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency N=5 r/min % % N= r/min N= r/min Overall Efficiency 5 6 Efficiency Overall Efficiency 9 7 5 5 6 5 5 Efficiency 5 5 Overall Efficiency 9 7 56 5 5 5 5 5 MPa 5 5 5 5 MPa 5 5 5 5 MPa Power Pressusre 5 PSI Pressusre 5 PSI 6 r/min.6 r/min r/min r/min 6. 5 r/min 5 r/min... 6.6 6 5, r/min. r/min.. 5 5 5 5MPa 5 5 5 5 MPa Pressusre 5 PSI N= r/min MPa(PSI) 5 (5) N=5 r/min N= r/min MPa(PSI) 5 (5) (5) MPa(PSI) () (5) 5 (5) () 5 () (5) 5 () () (9) 5 () (9) (9) 5 () 5 () 5 () (5) (5) (5) 5 ( 7) 5 ( 7) 5 ( 7) 6 5 6 5 6 5 56 Note) The dotted line in the graph indicates less than minimum adjustable flow. Power Drain Drain 5 PSI 5 PSI Noise Level [One metre (. ft.) horizontally away from pump head cover] db(a) db(a) N=5 r/min N= r/min 9 9 db(a) 9 N= r/min Noise Level 7 Noise Level 7 Noise Level 7 5 5 5 5 5 5 5 MPa 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI 5 PSI 5 PSI Single Pump, Compensator Type 9

Typical Performance Characteristics of Type "AH5" at Viscosity mm /s (5 SSU) [ISO VG oils, C ( F)] Performance Characteristic Curve 5 5 Efficiency Volumetric Efficiency % N=5 r/min Overall Efficiency 5 5 5 5 5 5 Efficiency % 5 5 Volumetric Efficiency N= r/min Overall Efficiency 7 66 5 5 5 5 5 5 MPa 5 5 5 5 MPa 5 Pressusre PSI Pressusre 5 PSI N=5 r/min MPa (PSI) N= r/min 5 (5) MPa (PSI) (5) 5 (5) () (5) 5 () () 5 () (9) (9) 5 () 5 () (5) (5) 5 ( 7) 5 ( 7) 6 5 5 66 6 5 5 Note) The dotted line in the graph indicates less than minimum adjustable flow. 66 7 Power Power 5 5 5 5 5 r/min 5 r/min Drain 5 Drain 5 5 r/min 5 r/min r/min 5 r/min 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI Noise Level [One metre (. ft.) horizontally away from pump head cover] db(a) N=5 r/min 9 db(a) 9 5 PSI N= r/min Noise Level 7 Noise Level 7 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI 5 PSI Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Typical Performance Characteristics of Type "AH" at Viscosity mm /s (5 SSU) [ISO VG oils, C ( F)] Performance Characteristic Curve Efficiency % Volumetric Efficiency N=5 r/min Overall Efficiency 7 5 Efficiency % Volumetric Efficiency N= r/min Overall Efficiency 9 7 5 5 5 5 MPa 5 5 5 5 MPa 5 Pressusre PSI Pressusre 5 PSI N=5 r/min MPa(PSI) 5 (5) (5) () 5 () (9) 5 () (5) 5 ( 7) 5 5 5 N= r/min MPa(PSI) 5 (5) (5) () 5 () (9) 5 () (5) 5 ( 7) 5 5 5 5 Note) The dotted line in the graph indicates less than minimum adjustable flow. 9 Power Power r/min 5 r/min 6 6 Drain 5 Drain r/min 5 r/min 5 r/min r/min 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI 5 PSI Noise Level [One metre (. ft.) horizontally away from pump head cover] db(a) N=5 r/min 9 db(a) 9 N= r/min Noise Level 7 Noise Level 7 5 5 5 5 MPa 5 5 5 5 MPa 5 PSI 5 PSI Single Pump, Compensator Type

Flange Mtg.: AH6-FRKK-//95 Suction Port 6(.) Dia. 5. (.6) 7.5 7.5 (.9) (.9) (.5) Hex. "D" Thd. 9(.75) Deep Places 5. (.) DEC. 9.5 (.) (.9) Fully Extended 5.5(.9) 9 (.5) Drain Port "C" Thd. Filling Port [(.7) Hex. Head Plug Furnished] 9.5 (.95) 9.5 (.7) 7 (.6) (.) (.) 6.. (.) (.97).5.5 (.) (.) Discharge Port 9(.75) Dia. (.9) 7.5 (6.7).(.75) Dia..(.7) 5.(.95).5(.97).(.) Dia..55(.99) Install the pump so that the "Filling port" is at the top. "C" Thd. "D" Thd. AH6-FRKK- Rc / M AH6-FRKK- / BSP.F AH6-FRKK-95 SAE # /-6 UNC 9. (.55) Position of Drain Port (.9).5 (.5) 9 (.69) 9. (.55) (.) 6 (.96) Pres. Adj. Screw (.5) Hex. 6.(.5) 6.5(.5) View Arrow Foot Mtg.: AH6-LRKK-//95 DIMENSIONS IN MILLIMETRES (INCHES) (.7) (.55) Dia. Through (.) Dia. Spotface Places 6 (.6) (.7) 5 (.5) (.97) 65 (6.5).5 (.6) (.7) 5 (5.9) (.7) (.7) (.) For other dimensions, refer to "Flange Mtg.". Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Flange Mtg.: AH7-FRKK-//95 "E" Thd. "H" Deep Places Suction Port (.6) Dia. 5.7 (.) (.9) (.) DEC. 7(.67) Hex. "D" Thd. "F" Deep Places 57. (.5) Discharge Port (.9) Dia.. 7. (.9) (.9) 5 5 (.) (.) (.9) 9 (.5) Fully Extended 6.5 (.7) (.) 9.5 (.9) (.9) 7.5 (.7) (.57) Drain Port "C" Thd. Filling Port [(.7) Hex. Head Plug Furnished] (.7) 9.5 (7.6) 5.(.) Dia. 5.7(.99).(.9).(.) 7.(5.) Dia. 6.95(.99) 9 (.7) Install the pump so that the "Filling port" is at the top. "C" Thd. "D" Thd. "E" Thd. AH7-FRKK- AH7-FRKK- AH7-FRKK-95 Rc / / BSP.F SAE # M /- UNC M 7/6- UNC F mm(in.) (.7) (.) H mm(in.) (.7) (.79).5 (.5) Positon of Dain Port 6.5 (.65).5 (.5) (5.6).5 (.5) (.) 5 (5.9) View Arrow Pres. Adj. Screw (.5) Hex. 6.(.5) 6.5(.5) Foot Mtg.: AH7-LRKK-//95 DIMENSIONS IN MILLIMETRES (INCHES) (.7) (.55) Dia. Through (.) Dia. Spotface Places 6 (.6) 9 (.75) (.) (.9) 5 (5.9) (.97) 5 (5.9) 66.5 (.6) 9.5 (.56) 5 (6.) 5 5 (.5) (.5) 7 (.9) For other dimensions, refer to "Flange Mtg.". Single Pump, Compensator Type

Flange Mtg.: AH56-FRKK-//95 9 (.6) DEC. 7(.67) Hex. 9 (.5) Suction Port (.5) Dia. "D" Thd. "F" Deep Places Filling Port [(.7) Hex. Head Plug Furnished] Fully Extended (.7) Drain Port "C" Thd. 6 (.) 6.5.5 (.) (.9) 7.5 (.7) (.57) 5 (.9) 7 (.) 69.9 (.75) 57. (.5) "E" Thd. "H" Deep Places 5.7 (.6) (.5) Discharge Port 6(.) Dia. 7. (.9) (.5) (.) 6 (.) (.5).75(.5) Dia..7(.) 5.(.9) 5.(.) 7.(5.) Dia. 6.95(.99).5 (.5) Positon of Dain Port 9 (.75).5 (.5) Pres. Adj. Screw (.5) Hex. Install the pump so that the "Filling port" is at the top. 7.97(.) 7.9(.6) "C" Thd. "D" Thd. "E" Thd. F H mm(in.) mm(in.) (5.6).5 (.5) AH56-FRKK- AH56-FRKK- Rc / / BSP.F M M (.7) (.7) AH56-FRKK-95 SAE # /- UNC 7/6- UNC (.) (.79) (.) 5 (6.6) View Arrow Foot Mtg.: AH56-LRKK-//95 DIMENSIONS IN MILLIMETRES (INCHES) (.7) (.55) Dia. Through (.) Dia. Spotface Places 6 (.6) 9 (.75) (.) (.9) 5 (5.9) (.97) 5 (5.9) 67 (.6) (.57) 5 (6.) 5 5 (.5) (.5) 7 (.9) For other dimensions, refer to "Flange Mtg.". Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Flange Mtg.: AH7-FRKK-//95 6.5 (.9) 97 (.) DEC. 7(.67) Hex. "D" Thd. "E" Deep Places Fully Extended 6(.9) Drain Port "C" Thd. Filling Port [(.7) Hex. Head Plug Furnished] (5.5) 75 (.95) 55.5 (.7) (.9).5 (.) 5 (.97) 7 (.6) 77. (.6) 66.7 (.66) Suction Port 5(.) Dia..9 (.69).5 (.6) Discharge Port (.) Dia.. (.5).5 (.6) (.9) Case Drain Port 5(.) Hex. Soc. 9.5 (9.) (.55).(.5) Dia..5(.9).6(.66).(.66) 7.(5.) Dia. 6.95(.99) Positaion of Drain Port.5 (.5) 5 (6.6).5 (.5) 9 (.75) Pres. Adj. Screw (.5) Hex. Install the pump so that the "Filling port" is at the top. "C" Thd. "D" Thd. E mm (IN.) AH7-FRKK- Rc / M 9 (.75) AH7-FRKK- / BSP.F AH7-FRKK-95 SAE # /- UNC (.) (5.6).5 (.5) 9.56(.76) 9.5(.75) (.) View Arrow Foot Mtg.: AH7-LRKK-//95 DIMENSIONS IN MILLIMETRES (INCHES) (.7) (.55) Dia. Through (.) Dia. Spotface Places 6 (.6) 9 (.75) (.) (.9) 5 (5.9) (.97) 5 (5.9) (.5) 5 (.9) 5 (6.) 5 5 (.5) (.5) 7 (.9) For other dimensions, refer to "Flange Mtg.". Single Pump, Compensator Type 5

Flange Mtg.: AH-FRKK-//95 "D" Thd. "E" Deep Places Suction Port 6(.) Dia..9 (.5) (.) 5. (.) 5 (.77) (.6) 7(.67) Hex. DEC. 66.7 (.66) Discharge Port (.) Dia.. (.5) 5 (.77).5 (.67) (5.67) (.7) 6.6 (6.6) Position of Drain Port (.9) Fully Extended F.5(.).5 (.6) (.9) H Case Drain Port 5(.) Hex. Soc. 9.5 (9.).(.6).(.7) J 7 (.67).5(.75) Dia..(.7) 9.9(.9) 9.(.97) 5.(6.) Dia. 5.5(5.99) 9.5 (5.) 96 (7.7) 6.6 (6.6) Install the pump so that the "Filling port" is at the top. 9 (.5) AH-FRKK- AH-FRKK- AH-FRKK-95 Thread Size Dimensions mm (Inches) C D E F H J Rc / / BSP.F M 9 (.75) 95 (.7) (.9) 6 (.) SAE # /- UNC (.) 7.6 (.9).6 (.9) 5 (.97) Foot Mtg.: AH-LRKK-/ (.6) DIMENSIONS IN MILLIMETRES (INCHES) 9 (.) (.6) (.) 7 (.6) (.7) Drain Port "C" Thd. Filling Port [7(.6) Hex. Head Plug Furnished].5 (.5) Pres. Adj. Screw (.5) Hex. /- UNC Thd. (.6) Deep "95" Design Only View Arrow (.7) Dia. Through (.69) Dia. Spotface Places (5.5) (.66) 9 (.5) (7.) 6 65 65 (.) (6.96) (6.96) 9 (5.67) For other dimensions, refer to "Flange Mtg.". 6 Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Flange Mtg.: AH5-FRKK* -//95 9(.75) Hex. DEC. "D" Thd. "F" Deep Places Suction Port 6(.) Dia..9 (.5) (.76) 5. (.) 9 (.9) (.7). (.5) 9 (.9) Discharge Port (.) Dia. 66.7 (.66) Fully Extended.5 (.66).5 (.6) Filling Port [7(.6) Hex. Head Plug Furnished] 9 5 (5.) (5.9) (.66) 6.6 (6.6) Position of Drain Port 6 (.).5 (.5) Case Drain Port 5(.) Hex. Soc. Pres. Adj. Screw (.5) Hex. 7 (.9) J.5 (.9) K Drain Port "C" Thd. L (.7) "P" Dia. N 5.(6.) Dia. 5.5(5.99) 9 (5.7).7(.5).7(.5) (7.7) 6.6 (6.6) "E" Thd. "H" Deep Install the pump so that the "Filling port" is at the top. 9 (.5) View Arrow AH5-FRKK- AH5-FRKK- C Rc / / BSP.F Thread Size D M F (.7) AH5-FRKK-95 /- UNC (.6) SAE # /- UNC (.) AH5-FRKK-95 5/- UNC 6 (.) E H Dimensions mm (Inches) J K L N P 9.9 (.9).5 (.75) 95 (.7) (.9) 6 (.) 9. (.97). (.7) 9.9 (.9).5 (.75) 9. (.97). (.7) 7.6 (.9).6 (.9) 5 (.97) 56. (.) 5. (.) 56.5 (.5) 5.75 (.99) Foot Mtg.: AH5-LRKK-/ (.6) DIMENSIONS IN MILLIMETRES (INCHES) (.7) Dia. Through (.69) Dia. Spotface Places (.) (.6) (5.5) (.5) 7 (.6) (.7) 9 (.) 9 65 65 (7.) (7.7) (.9) (6.96) (6.96) 7 9 (.) (.) (.6) (.5) (5.67) For other dimensions, refer to "Flange Mtg.". Single Pump, Compensator Type 7

Flange Mtg.: AH-FRKK* -//95 Suction Port 76(.99) Dia. 6. (.9) 9.5 (5.) 7.5 (.) 6.9 (.7) 5 (.9) "D" Thd. 9(.) Deep Places 7 (.6) Position of Drain Port 6.5 (.7) 5 (.9) 9(.75) Hex. DEC. 79. (.6) Discharge Port (.7) Dia. Fully Extended 7.5(.6) Filling Port [7(.6) Hex. Head Plug Furnished].5 (.5) (6.) (5.) Case Drain Port 5(.) Hex. Soc. 6.6 (6.6) 9.5 (.9) Pres. Adj. Screw (.5) Hex. (.9) Drain Port "C" Thd. H.5 (.9) K J (.9) "N" Dia. L 5.(6.) Dia. 5.5(5.99).5 (5.5).7(.5).7(.5) (7.7) 6.6 (6.6) "E" Thd. "F" Deep Install the pump so that the "Filling port" is at the top. (.66) 9 (.5) View Arrow AH-FRKK- AH-FRKK- C Rc / / BSP.F Thread Size D M AH-FRKK-95 /- UNC (.6) SAE # 5/- UNC AH-FRKK-95 5/- UNC 6 (.) E F Dimensions mm (Inches) H J K L N 56. (.) 5. (.) (.) 97.5 (.) (.5) 56.5 (.5) 5.75 (.99) 9.9 (.9).5 (.75) 9. (.97). (.7) 7.6 (.9).6 (.9) 5 (.97) 56. (.) 5. (.) 56.5 (.5) 5.75 (.99) Foot Mtg.: AH-LRKK-/ (.6) DIMENSIONS IN MILLIMETRES (INCHES) (.7) Dia. Through (.69) Dia. Spotface Places (.) (.6) (5.5) (.5) 7 (.6) (.7) 9 (.) 9 65 65 65 (7.) (7.7) (.56) (6.96) (6.96) 7 9 (.) (.) (.6) (.) (5.67) For other dimensions, refer to "Flange Mtg.". Single Pump, Compensator Type

A"AH" Series PISTON PUMPS Spear Parts List AH6/AH7/AH56-* RKK-//95 5 6 9 5 9 55 7 5 5 7 9 9 9 9 7 5 5 5 6 56 Y Y Z 6 59 5 7 5 7 6 5 67 7 6 6 6 66 69 65 6 6 7 7 5 5 6 Detail of Section Detail of Section Y Y Detail of "Z" List of Seals and Bearings Item 7 6 7 Name of Parts Gasket Back Up Ring Cylindrical Roller Bearing Tapered Roller Bearing Needle Roller Bearing Tapered Roller Bearing Oil Seal O-Ring O-Ring O-Ring Part Numbers AH6 AH7 AH56 7-PK655-7-PK-5-7-PK-5 E-PK- NUP5E T- T- HMK5V T-6 T-5R TCN55 (FKM) TCN (FKM) TCN555 (FKM) S65 (NBR, Hs7) S5 (NBR, Hs7) S95 (NBR, Hs7) SO-NA-G SO-NA-G S7 (NBR, Hs7) SO-NB-P SO-NB-P SO-NB-P O-Ring O-Ring SO-NB-P SO-NB-P9 5 6 69 O-Ring O-Ring O-Ring SO-NB-P6 SO-NB-P SO-NA-A SO-NB-P6 SO-NB-P9 Q'ty. When ordering seals, please specify the kit number from the table below. List of Seals kit Pump AH6-* RKK-//95 AH7-* RKK-//95 AH56-* RKK-//95 Seal Kit Numbers AH6-- AH7-- AH56-- Single Pump, Compensator Type 9

Spear Parts List AH7-* RKK-//95 AH/AH5/AH-* RKK * -//95 5 5 55 5 9 9 7 7 5 5 5 5 5 7 6 9 6 56 Y Y 7 5 6 9 59 5 9 7 5 6 6 67 7 6 6 6 66 69 65 6 6 7 7 5 Detail of Section Detail of Section Y Y List of Seals and Bearings Item 9 9 6 9 Name of Parts Gasket Back Up Ring Tapered Roller Bearing Cylindrical Roller Bearing Tapered Roller Bearing Needle Roller Bearing Oil Seal O-Ring O-Ring O-Ring O-Ring O-Ring O-Ring 6 O-Ring 69 O-Ring Part Numbers AH7 AH AH 7-PK56-9JR 5JR 7-PK6-5 E-PK- T-6 T- TCN65 (FKM) TCN57 (FKM) S (NBR, Hs7) S (NBR, Hs7) SO-NA-G SO-NA-G95 SO-NB-P When ordering seals, please specify the kit number from the table below. AH5 75-PK-6 HR 76-PK59- T-6 76-PK-9 TCN557 (FKM) TCN557 (FKM) S5 (NBR, Hs7) S (NBR, Hs7) SO-NA-G95 SO-NA-G5 SO-NB-P6 SO-NB-P SO-NB-P SO-NB-P SO-NB-P9 SO-NB-PA SO-NB-P9 SO-NA-A SO-NB-P 76-PK-6 Q'ty. List of Seals kit Pump AH7-* AH-* RKK-//95 AH5-* RKK-//95 AH-* RKK-//95 RKK-//95 Seal Kit Numbers AH7-- AH-- AH5-- AH-- Single Pump, Compensator Type

A"AH" Series PISTON PUMPS -Single Pump, Constant Power (Torque) Control Type Graphic Symbol Specifications Geometric Displacement cm /rev (cu.in./rev) Minimum Adj. Flow cm /rev (cu.in./rev) Max. Operating MPa (PSI) Shaft Speed Range r/min Max. Min. Flange Mtg. Approx. Mass kg (lbs.) Foot Mtg. AH 7- * R9- *** K- * AH 56- * R9- *** K- * AH 7- * R9- *** K- * AH- * R9- *** K- * AH5- * R9- *** K- * AH- * R9- *** K- * 7. (.6) 56. (.) 7.7 (.).5 (6.) 5. (.6).7 (.) 6. (.976) 5. (.) 5. (.75) 6. (.) 95. (5.) 5. (7.6) 5 (5) 7 5. (5.7) 9. (6.9). (.). (6) 6. (9) 7. (6).5 (67.) 6.5 (.5) 5.5 () 76. (6) 9. (). (5) The maximum shaft speeds shown in the above table are at suction pressure kpa ( PSIG). Model Number Designation AH7 -F R Series Number AH7 (7. cm /rev) AH56 (56. cm /rev) AH7 (7.7 cm /rev) AH (.5 cm /rev) AH5 (5. cm /rev) AH (.7 cm /rev) Mounting F: Flange Mtg. L: Foot Mtg. F: Flange Mtg. L: Foot Mtg. Direction of Rotation Viewed from Shaft End R: Clockwise (Normal) 9 Control Type 9: Constant Power (Torque) Control Type - Setting 5.5: 5.5 : Refer to the table on following page for combination. A Frequency of Power Source A: 5 Hz B: Hz Pole Number of Electric Motor : Poles 6: 6 Poles K Shaft Extension K : Keyed Shaft K : Keyed Shaft.5mm [(.75 IN.) Dia.] 5 K: Keyed Shaft 5.mm [(. IN.) Dia.] - Design Number * Design Std. Refer to. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.. We can also supply spline-type shaft extension. Consult Yuken for details.. Design Standards: None... Japanese Standard "JIS"... European Design Standard 95... N. American Design Standard (Applicable only for AH7/56/7) 95... N. American Design Standard (Applicable only for AH/5/). Mounting type "L" is not available for N. American Design Standard. 5. Shaft extension "K" is applicable only for N. American Design Standard. Single Pump, Constant Power (Torque) Control Type

Combination of pump series and input power setting ( = available combinations) AH 7 AH 56 AH 7 AH AH5 AH 5 Hz Hz 5 Hz Hz 5 Hz Hz 5 Hz Hz 5 Hz Hz 5 Hz Hz (5) 5 () Setting Pole Number of Electric Motor : P.5 7 5 55 75 9 5.5 (5) () () (5) () (75) () () (5) (7.5) () Pole Number of Electric Motor : 6P 7.5 () (5) 5 ().5 (5) () () 7 (5) 5 () 55 (75) 75 () Pipe Flange Kits For pipe flange, refer to form of pressure compensator type on page. Typical Performance Characteristics of Control Type "9" at Viscosity mm /s [ISO VG oils, C ( F)] AH7 7 6 N=5 r/min 7 6 N= r/min 5.5 (5 ) 5 ( ) (5 ) 5 5 5 5 MPa 5 (5 ) 5 5 5 5 MPa ( ).5 (5 ) 5 ( ) 5 PSI 5 PSI AH56 N=5 r/min 6 ( ) ( ).5 (5 ) 5 ( ) 5 5 5 5 MPa 6 N= r/min 5 5 5 5 MPa 7 (5 ) ( ) ( ).5 (5 ) 5 PSI 5 PSI Single Pump, Constant Power (Torque) Control Type

A"AH" Series PISTON PUMPS Typical Performance Characteristics of Control Type "9" at Viscosity mm /s [ISO VG oils, C ( F)] AH7 5 N=5 r/min 5 N= r/min 5 75 5 7 (5 ) 5 ( ) ( ).5 (5 ) 5 5 5 5 MPa 5 75 5 5 5 5 5 5 MPa 5 ( ) 7 (5 ) ( ) ( ) AH 5 75 5 PSI N=5 r/min 5 75 5 PSI N= r/min 5 5 5 75 55 (75 ) 5 5 ( ) 7 (5 ) 5 ( ) ( ) 5 5 5 5 MPa 5 75 5 5 5 5 5 5 MPa 55 (75 ) 5 ( ) 7 (5 ) ( ) AH5 5 PSI N=5 r/min 5 PSI N= r/min 5 5 75 ( ) 5 55 ( 75 ) ( ) 5 ( ) 7 ( 5 ) 5 5 5 5 MPa 5 5 9 ( ) 75 ( ) 5 55 ( 75 ) 5 ( ) 7 ( 5 ) 5 5 5 5 MPa AH 5 9 5 PSI N=5 r/min 5 9 5 PSI N= r/min 5 5 9 ( ) 75 ( ) 5 55 ( 75 ) 5 ( ) 7 ( 5 ) 5 5 5 5 MPa 5 5 (5 ) 9 ( ) 75 ( ) 5 55 ( 75 ) 5 ( ) 5 5 5 5 MPa 5 PSI 5 PSI Single Pump, Constant Power (Torque) Control Type

Y UKEN Flange Mtg.: AH7-FR9-*** K-//95 9 (.7) 7.(5.) Dia. 6.95(.99).(.9).(.) 5.(.) Dia. 5.7(.99) Input Pwoer Setting Screw Drain Port "C" Thd. 6.5 Fully Extended (.) (.7).5 9 (.9) (.9) 7.5 (.7) (.57) (.7). (.65) 9.5 (7.6) 9 (.5) 9 (.) (5.7) Fully Extended Filling Port [(.7) Hex. Head Plug Furnished] "E" Thd. "H" Deep Places 5.7 (.) Suction Port (.6) Dia. 5 (6.6) (.). (.9) 5 (.) (.76) DEC. 7(.67) Hex. "D" Thd. "F" Deep Places 57. (.5) Discharge Port (.9) Dia. 7. (.9) 5 (.).5 (.5) Position of Drain Port 6.5 (.65).5 (.5) Pres. Adj. Screw (.5) Hex. 6.(.5) 6.5(.5) (5.6).5 (.5) (.) 5 (5.9) View Arrow AH7-FR9-*** K- AH7-FR9-*** K- AH7-FR9-*** K-95 Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page for the dimensions of mounting bracket. C Rc / / BSP.F SAE # Thread Size D M /- UNC E M 7/6- UNC. Install the pump so that the "Filling Port" is at the top.. Do not touch the screw because it is adjusted at the time of shipment. Dimensions mm (Inches) F (.7) (.) H (.7) (.79) DIMENSIONS IN MILLIMETRES (INCHES) Single Pump, Constant Power (Torque) Control Type

Y UKEN A"AH" Series PISTON PUMPS Flange Mtg.: AH56-FR9-*** K-//95 7 (.) 7.(5.) Dia. 6.95(.99) 5.(.9) 5.(.).75(.5) Dia..7(.) 6 (.).5 (.9) 7.5 (.7) (.57) (.5) Fully Extended 9(9.) 6.5 (.) Drain Port "C" Thd. Input Pwoer Setting Screw 5.5 (.79) 6 (.) (.) Fully Extended 5 (.) (5.9) Filling Port [(.7) Hex. Head Plug Furnished] Suction Port (.5) Dia. 69.9 (.75) "E" Thd. "H" Deep Places 6 (6.) 5.7 (.6) (.5) 9 (5.).5 (.5) Position of Drain Port 6.5 (.65).5 (.5) 7.97(.) 7.9(.6) (5.6).5 (.5) 9 (.5) 7. (.9) (.5) 7(.67) Hex. DEC. "D" Thd. "F" Deep Places 57. (.5) Discharge Port 6(.) Dia. Pres. Adj. Screw (.5) Hex. 5 (6.6) (.) View Arrow AH56-FR9-*** K- AH56-FR9-*** K- AH56-FR9-*** K-95 Thread Size C D E Rc / / BSP.F M M SAE # /- UNC 7/6- UNC. Install the pump so that the "Filling Port" is at the top.. Do not touch the screw because it is adjusted at the time of shipment. Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page for the dimensions of mounting bracket. Dimensions mm (Inches) F (.7) (.) H (.7) (.79) DIMENSIONS IN MILLIMETRES (INCHES) Single Pump, Constant Power (Torque) Control Type 5

Y UKEN Flange Mtg.: AH7-FR9-*** K-//95 7 (.6) 7.(5.) Dia. 6.95(.99).6(.66).(.66).(.5) Dia..5(.9) 5 (.97) Input Pwoer Setting Screw 75 (.95) Fully Extended 6(.9).5 55 (.9) (.7).5 Drain Port (.) "C" Thd. (.55) 5.5 (.5) 9.5 (9.) 75 (6.9) (.5) (.9) Fully Extended Case Drain Port 5(.) Hex. Soc. (Opposite Side) Filling Port [(.7) Hex. Head Plug Furnished] Suction Port 5(.) Dia. 67.5 97 (6.59) (.) 77. (.6) "D" Thd. "E" Deep Places.9 (.69).5 (.6).5 (5.). (.5).5 (.6) 7(.67) Hex. DEC. 66.7 (.66) Discharge Port (.) Dia. 5 (6.6).5 (.5) Position of Drain Port 9 (.75).5 (.5) 9.56(.76) 9.5(.75) Pres. Adj. Screw (.5) Hex. (5.6).5 (.5) (.) View Arrow AH7-FR9-*** K- AH7-FR9-*** K- AH7-FR9-*** K-95 Thread Size C D Rc / / BSP.F M SAE # /- UNC Dimensions mm (Inches) E 9 (.75) (.). Install the pump so that the "Filling Port" is at the top.. Do not touch the screw because it is adjusted at the time of shipment. Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page 5 for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) 6 Single Pump, Constant Power (Torque) Control Type

Y UKEN A"AH" Series PISTON PUMPS Flange Mtg.: AH-FR9-*** K-//95 9.5 (5.) 5.(6.) Dia. 5.5(5.99) 9.9(.9) 9.(.97).5(.75) Dia..(.7) Input Pwoer Setting Screw F.5 (.9) (.6) H J 7 (.67) 59. (.) Fully Extended.5(.) Drain Port "C" Thd. 9.5 (9.) 79 (7.5) (.5).5 (.67) Fully Extended Case Drain Port 5(.) Hex. Soc. (Opposite Side) Filling Port [7(.6) Hex. Head Plug Furnished] Suction Port 6(.) Dia..9 (.5) "D" Thd. "E" Deep Places 75.5 (6.9) (.6) 5. (.) 5 (.77).5 (5.6). (.5) 5 (.77) 7(.67) Hex. DEC. 66.7 (.66) Discharge Port (.) Dia. (.7) 6.6 (6.6) Position of Drain Port (.9).5 (.5).(.6).(.7) Pres. Adj. Screw (.5) Hex. 96 (7.7) 6.6 (6.6) /- UNC Thd. (.6) Deep "95" Design Only 9 (.5) View Arrow AH-FR9-*** K- AH-FR9-*** K- AH-FR9-*** K-95 Thread Size Dimensions mm (Inches) C D E F H Rc / / BSP.F M 9 (.75) 95 (.7) (.9) SAE # /- UNC (.) 7.6 (.9).6 (.9). Install the pump so that the "Filling Port" is at the top.. Do not touch the screw because it is adjusted at the time of shipment. J 6 (.) 5 (.97) Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page 6 for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) Single Pump, Constant Power (Torque) Control Type 7

Y UKEN Flange Mtg.: AH5-FR9-*** K * -//95 9 (5.7) 5.(6.) Dia. 5.5(5.99) N "P" Dia. Input Pwoer Setting Screw J Fully Extended.5(.66).5 7 (.9) (.9) K Drain Port "C" Thd. L (.7) 7.5 (.9).5 (.6) (.5) 9 7 (5.) (7.6) Fully Extended Case Drain Port 5(.) Hex. Soc. (Opposite Side) Filling Port [7(.6) Hex. Head Plug Furnished] Suction Port 6(.) Dia. (7.7) (.7).9 (.5) "D" Thd. "F" Deep Places 5. (.) 9 (.9) 9 (5.7). (.5) 9 (.9) 9(.75) Hex. DEC. 66.7 (.66) Discharge Port (.) Dia. (.66) 6.6 (6.6) Position of Drain Port.5 (.5).7(.5).7(.5) 6 (.) Pres. Adj. Screw (.5) Hex. (7.7) 6.6 (6.6) "E" Thd. "H" Deep "95" Design Only 9 (.5) View Arrow C AH5-FR9-*** AH5-FR9-*** K- Rc / K- / BSP.F Thread Size Dimensions mm (Inches) D E F H J K L M 9 (.75) AH5-FR9-*** K-95 /- UNC (.6) SAE # /- UNC (.) 7.6 (.9) AH5-FR9-*** K-95 5/- UNC 6 (.). Install the pump so that the "Filling Port" is at the top.. Do not touch the screw because it is adjusted at the time of shipment. 95 (.7) (.9) 6 (.) N P 56. (.) 5. (.) 56.5 (.5) 5.75 (.99) 9.9 (.9).5 (.75) 9. (.97). (.7).6 (.9) 5 (.97) 56. (.) 5. (.) 56.5 (.5) 5.75 (.99) Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page 7 for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) Single Pump, Constant Power (Torque) Control Type

A"AH" Series PISTON PUMPS Flange Mtg.: AH-FR9-*** K * -//95.5 (5.5) 5.(6.) Dia. 5.5(5.99) L "N" Dia. H.5 (.9) (.9) J K Fully Extended 7.5(.6) Drain Port "C" Thd. (.5) 95 (5.) (7.6) Fully Extended Filling Port [7(.6) Hex. Head Plug Furnished] Suction Port 76(.99) Dia. 9 7 (7.) (.6) "D" Thd. 9(.) Deep 6.9 6.5 Places (.9) (.7) (.7).9 5 5 (.) (.9) (.9) 9.5 56 Input Pwoer Setting Screw (.9) (6.) Case Drain Port 5(.) Hex. Soc. (Opposite Side) 6. (.9) 9(.75) Hex. DEC. 79. (.6) Position of Drain Port.5 (.5).7(.5).7(.5) (.66) 6.6 (6.6) 7.5 (.) (7.7) 6.6 (6.6) Discharge Port (.7) Dia. Pres. Adj. Screw (.5) Hex. "E" Thd. "F" Deep 9 (.5) View Arrow C AH-FR9-*** AH-FR9-*** K- Rc / K- / BSP.F Thread Size D M6 E Dimensions mm (Inches) J K L 56. (.) 5. (.) (.) 97.5 (.) (.5) 56.5 (.5) 5.75 (.99) 9.9 (.9).5 (.75) AH-FR9-*** K-95 /- UNC (.6) 9. (.97). (.7) SAE # 5/- UNC 99. (.9) 5. (.6) 7 (.76) 56. (.) 5. (.) AH-FR9-*** K-95 5/- UNC 6 (.) 56.5 (.5) 5.75 (.99). Install the pump so that the "Filling Port" is at the top.. Do not touch the screw because it is adjusted at the time of shipment. F H N Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) Single Pump, Constant Power (Torque) Control Type 9

-Single Pump, Load Sensing Type Graphic Symbol A flow control valve is not included with the pump. Install the valve separately. Specifications AH 6- * RK- * AH 7- * RK- * AH 56- * RK- * AH 7- * RK- * AH- * RK- * AH5- * RK- * AH- * RK- * Geometric Displacement cm /rev (cu.in./rev) 6. (.995) 7. (.6) 56. (.) 7.7 (.).5 (6.) 5. (.6).7 (.) Operating Load Sensing Shaft Speed Range Approx. Mass MPa (PSI) Pres. Difference r/min kg (lbs.) P Rated Intermittent MPa (PSI) Max. Min. Flange Mtg. Foot Mtg. 7.5 (.6) 6. (5.) 7.5 (9.6). (66.).5 () 5.7 (6.) 6. (79.) () 5 (5) At the time. (.) 5.5 () (of shipment) 7.6 (5) 75.6 (67) 6. (9) 9. () 7. (6). (). The operating pressure means pump discharge pressure.. Load pressure difference P is adjustable in range of. -. MPa (5-5 PSI).. The maximum shaft speeds shown in the above table are at suction pressure kpa ( PSIG). Model Number Designation AH7 Series Number -F Mounting R Direction of Rotation Control Type K Shaft Extension - Design Number * Design Std. AH6 (6. cm /rev) AH7 (7. cm /rev) F: Flange Mtg. AH56 (56. cm /rev) AH7 (7.7 cm /rev) AH (.5 cm /rev) AH5 (5. cm /rev) AH (.7 cm /rev) L: Foot Mtg. F: Flange Mtg. L: Foot Mtg. Viewed from Shaft End R: Clockwise (Normal) : Load Sensing Type K : Keyed Shaft K : Keyed Shaft [.5mm (.75 IN.) Dia.] 5 K: Keyed Shaft [5.mm (. IN.) Dia.] Refer to. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.. We can also supply spline-type shaft extension. Consult Yuken for details.. Design Standards: None... Japanese Standard "JIS"... European Design Standard 95... N. American Design Standard (Applicable only for AH6/7/56/7) 95... N. American Design Standard (Applicable only for AH/5/). Mounting type "L" is not available for N. American Design Standard. 5. Shaft extension "K" is applicable only for N. American Design Standard. 5 Single Pump, Load Sensing Type

A"AH" Series PISTON PUMPS Pipe Flange Kits For pipe flange, refer to form of pressure compensator type on page. Typical Performance Characteristics of Control Type "AH7" at Viscosity mm /s [ISO VG oils, C ( F)] vs. 6 Load Sensing Difference P=.5 MPa (PSI) N= r/min 6 5 5 5 5 MPa 5 PSI r/min Power 6 6 r/min 5 r/min 5 5 5 5 MPa 5 PSI Drain 5 5 5 Drain Cut-off pressure or less r/min r/min 5 r/min / Q / Q / Q / Q r/min r/min 5 r/min MA. Q 5 5 5 5 MPa 5 PSI Ask Yuken for Performance caracteristics of other series than AH7. Single Pump, Load Sensing Type 5

Flange Mtg.: AH6-FRK-//95 Pilot Port "PP" "D" Thd. 9.5 (.5) 75.5 (.97) 7.5 (.9).5 (.) Load Sensing Port "L" "D" Thd. DEC. (.5) Hex. Fully Extended 9.5 5.5(.9) (.95) Position of Pilot Port "PP".5 9.5 (5.) (.7) Position of Load Sensing Port "L".5 7 (.9) (.6) Filling Port 9 [(.7) Hex. Head Plug Furnished] (.5) (.) "E" Thd. 9(.75) Deep Places Drain Port "C" Thd. 5. (.6) Suction Port 6(.) Dia. 6.. (.) (.97).5.5 (.) (.) 5. (.) Discharge Port 9(.75) Dia. 7.5 (.9) (5.) 7.5 (6.7) (.9).(.75) Dia..(.7) 9. (.55) Position of Drain Port (.9).5 (.5) 9 (.69) 9. (.55) 5.(.95).5(.97).(.) Dia..55(.99) (.) Load Sensing Pres. Difference Adj. Screw (.5) Hex. Adj. Screw (.55) Hex. 6.(.5) 6.5(.5) (.) 6 (.96) View Arrow AH6-FRK- AH6-FRK- AH6-FRK-95 C Rc / / BSP.F SAE # Thread Size D Rc / / BSP.F SAE # Install the pump so that the "Filling Port" is at the top. E M 7/6- UNC Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) 5 Single Pump, Load Sensing Type

A"AH" Series PISTON PUMPS Flange Mtg.: AH7-FRK-//95 Pilot Port "PP" "D" Thd. "F" Thd. "J" Deep Places 9 (.6) 7 (.7) (.) (.) Load Sensing Port "L" "D" Thd. DEC. 7(.67) Hex. "E" Thd. "H" Deep Places Fully Extended (.7) Position of Pilot Port "PP" 6.5 (5.77) Position of Load Sensing Port "L" 9.5 (5.9) Filling Port 9 [(.7) Hex. Head Plug Furnished] (.9) 6.5 (.).5 (.9) 7.5 (.7) (.57) Drain Port "C" Thd. 5.7 (.) 57. (.5) Suction Port Discharge Port (.6) Dia. (.9) Dia.. 7. (.9) (.9) 5 5 (.) (.) 9 (.5) (5.59) (.7) 9.5 (7.6) 5.(.) Dia. 5.7(.99).(.9).(.) 7.(5.) Dia. 6.95(.99) 9 (.7).5 (.5) Position of Drain Port 6.5 (.65).5 (.5) Load Sensing Pres. Difference Adj. Screw (.5) Hex. Adj. Screw (.55) Hex. 6.(.5) 6.5(.5) (5.6).5 (.5) 5 (5.9) (.) View Arrow AH7-FRK- AH7-FRK- AH7-FRK-95 C Rc / / BSP.F SAE # D Rc / / BSP.F SAE # Thread Size E M /- UNC Install the pump so that the "Filling Port" is at the top. F M 7/6- UNC Dimensions mm (Inches) H J (.7) (.) (.7) (.79) Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) Single Pump, Load Sensing Type 5

Flange Mtg.: AH56-FRK-//95 Pilot Port "PP" "D" Thd. "F" Thd. "J" Deep Places 9 9 (.7) (.5) (.5) 6 (.) Load Sensing Port "L" "D" Thd. DEC. 7(.67) Hex. "E" Thd. "H" Deep Places Fully Extended 9(9.) Position of Pilot Port "PP" 6.5 (6.6) Position of Load Sensing Port "L" 5.5 (6.) Filling Port 6.5 [(.7) Hex. Head Plug Furnished] (.) 6 (.).5 (.9) 7.5 (.7) (.57) Drain Port "C" Thd. 69.9 (.75) Suction Port (.5) Dia. 5.7 (.6) 7. (.9) (.5) (.5) 57. (.5) Discharge Port (.9) Dia. 5 (6.) (.) 6 (.) (.5).75(.5) Dia..7(.) 5.(.9) 5.(.) 7.(5.) Dia. 6.95(.99) 7 (.).5 (.5) Position of Drain Port 9 (.75).5 (.5) Load Sensing Pres. Difference Adj. Screw (.5) Hex. Adj. Screw (.55) Hex. (5.6).5 (.5) 7.97(.) 7.9(.6) 5 (6.6) (.) View Arrow AH56-FRK- AH56-FRK- AH56-FRK-95 C Rc / / BSP.F SAE # D Rc / / BSP.F SAE # Thread Size E M /- UNC Install the pump so that the "Filling Port" is at the top. F M 7/6- UNC Dimensions mm (Inches) H J (.7) (.) (.7) (.79) Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) 5 Single Pump, Load Sensing Type

A"AH" Series PISTON PUMPS Flange Mtg.: AH7-FRK-//95 Pilot Port "PP" "D" Thd. "E" Thd. "F" Deep Places 6.5 (.9) 9 (.5) 97 (.).5 (.7) Load Sensing Port "L" "D" Thd. DEC. 7(.67) Hex. Fully Extended 6(.9) Position of Pilot Port "PP" (7.) Position of Load Sensing Port "L" 7 (6.5) Filling Port 55 [(.7) Hex. Head Plug Furnished] (.7) 75 (.95).5 (.9).5 (.) 5 (.97) Drain Port "C" Thd. 77. (.6) Suction Port 5(.) Dia..9. (.69) (.5).5.5 (.6) (.6) 66.7 (.66) Discharge Port (.) Dia. 59 (.9) (6.6) Case Drain Port 5(.) Hex. Soc. 9.5 (9.) (.55).(.5) Dia..5(.9).6(.66).(.66) 7.(5.) Dia. 6.95(.99) 7 (.6) 5 (6.6).5 (.5) Position of Drain Port 9 (.75).5 (.5) Load Sensing Pres. Difference Adj. Screw (.5) Hex. Adj. Screw (.55) Hex. 9.56(.76) 9.5(.75) (5.6).5 (.5) View Arrow (.) AH7-FRK- AH7-FRK- AH7-FRK-95 C Rc / / BSP.F SAE # Thread Size D Rc / / BSP.F SAE # Install the pump so that the "Filling Port" is at the top. E M /- UNC Dimensions mm (Inches) F 9 (.75) (.) Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page 5 for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) Single Pump, Load Sensing Type 55

Flange Mtg.: AH-FRK-//95 Pilot Port "PP" "D" Thd. "E" Thd. "F" Deep Places (.) (.6) 9 (.5).5 (.67) Load Sensing Port "L" "D" Thd. DEC. 7(.67) Hex. Fully Extended.5(.) Position of Pilot Port "PP" 96.5 (7.7) Position of Load Sensing Port "L" 9.5 (7.6) Filling Port [7(.6) Hex. Head Plug Furnished] (.6) H.5 (.9) J K Drain Port "C" Thd..9 (.5) 66.7 (.66) Suction Port 6(.) Dia. Discharge Port (.) Dia. 5.. (.) (.5) 5 5 (.77) (.77).5 6 (.67) (6.) Case Drain Port 5(.) Hex. Soc. 9.5 (9.) 7 (.67).5(.75) Dia..(.7) 9.9(.9) 9.(.97) 5.(6.) Dia. 5.5(5.99) 9.5 (5.) (.7) 6.6 (6.6) Position of Drain Port.5 (.5) (.9) Load Sensing Pres. Difference Adj. Screw (.5) Hex. Adj. Screw (.55) Hex..(.6).(.7) 96 (7.7) 6.6 (6.6) /- UNC Thd. (.6) Deep "95" Design Only 9 (.5) View Arrow AH-FRK- AH-FRK- AH-FRK-95 C Rc / / BSP.F SAE # Install the pump so that the "Filling Port" is at the top. Thread Size Dimensions mm (Inches) D E F H J Rc / / BSP.F M 9 (.75) 95 (.7) (.9) SAE # /- UNC (.) 7.6 (.9).6 (.9) K 6 (.) 5 (.97) Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page 6 for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) 56 Single Pump, Load Sensing Type

A"AH" Series PISTON PUMPS Flange Mtg.: AH5-FRK* -//95 Pilot Port "PP" "D" Thd. "E" Thd. "H" Deep Places (.76) 9.5 (.6) (.7) 6 (.) Load Sensing Port "L" "D" Thd. DEC. 9(.75) Hex. Fully Extended.5(.66) Position of Pilot Port "PP".5 (.76) Position of Load Sensing Port "L" 5.5 Filling Port (.) [7(.6) Hex. Head Plug Furnished] 7 (.9) K.5 (.9) L N Drain Port "C" Thd..9 (.5) Suction Port 6(.) Dia. 5. (.) 9 (.9). (.5) 9 (.9) 66.7 (.66) Discharge Port (.) Dia. 9 7 (5.) (6.7) Case Drain Port 5(.) Hex. Soc..5 (.6) (.7) "Q" Dia. P 5.(6.) Dia. 5.5(5.99) 9 (5.7) (.66) 6.6 (6.6) Position of Drain Port.5 (.5) Load Sensing Pres. Difference Adj. Screw (.5) Hex. Adj. Screw (.55) Hex. (7.7) 6.6 (6.6) 6 (.).7(.5).7(.5) "F" Thd. "J" Deep 9 (.5) View Arrow AH5-FRK- AH5-FRK- C Rc / / BSP.F D Rc / / BSP.F Thread Size Dimensions mm (Inches) E F H J K L N M 9 (.75) AH5-FRK-95 /- UNC (.6) SAE # SAE # /- UNC (.) 7.6 (.9).6 (.9) 5 (.97) AH5-FRK-95 5/- UNC 6 (.) Install the pump so that the "Filling Port" is at the top. 95 (.7) (.9) 6 (.) P 56. (.) 5. (.) 56.5 (.5) 5.75 (.99) 9.9 (.9) 9. (.97) 56. (.) 56.5 (.5) Q.5 (.75). (.7) 5. (.) 5.75 (.99) Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page 7 for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) Single Pump, Load Sensing Type 57

Flange Mtg.: AH-FRK* -//95 Pilot Port "PP" "D" Thd. "E" Thd. 9(.) Deep Places 9.5 (5.) 7.5 (.) 7 (.6) (.57) Load Sensing Port "L" "D" Thd. DEC. 9(.75) Hex. Fully Extended 7.5(.6) Position of Pilot Port "PP".5 (9.6) Position of Load Sensing Port "L" 7.5 (9.5) Filling Port [7(.6) Hex. Head Plug Furnished] (.9) K.5 (.9) L N Drain Port "C" Thd. 6. (.9) Suction Port 76(.99) Dia. 6.9 6.5 (.7) (.7) 5 5 (.9) (.9) 79. (.6) Discharge Port (.7) Dia. 79 (5.) (7.5) Case Drain Port 5(.) Hex. Soc. 9.5 (.9) (.9) "P" Dia. N (.66) 6.6 (6.6) Position of Drain Port 7.5 (.).5 (.5) Load Sensing Pres. Difference Adj. Screw (.5) Hex. Adj. Screw (.55) Hex..7(.5).7(.5) (7.7) 6.6 (6.6) 5.(6.) Dia. 5.5(5.99).5 (5.5) "F" Thd. "H" Deep 9 (.5) View Arrow AH-FRK- AH-FRK- C Rc / / BSP.F Thread Size Dimensions mm (Inches) D E F H J K L N P Rc / 56. (.) 5. (.) M (.) 97.5 (.) (.5) / BSP.F 56.5 (.5) 5.75 (.99) AH-FRK-95 /- UNC (.6) SAE # SAE # 5/- UNC 99. (.9) 5. (.6) 7 (.76) AH-FRK-95 5/- UNC 6 (.) Install the pump so that the "Filling Port" is at the top. 9.9 (.9) 9. (.97) 56. (.) 56.5 (.5).5 (.75). (.7) 5. (.) 5.75 (.99) Foot Mounting Type Mounting bracket is common to that of pressure compensator model. Refer to page for the dimensions of mounting bracket. DIMENSIONS IN MILLIMETRES (INCHES) 5 Single Pump, Load Sensing Type