Variable Axial Piston Pump (A)A10VSO

Transcription

1 Industrial Hydraulics open circuit Electric Drives and Controls Linear Motion and Assembly Technologies Pneumatics Variable Axial Piston Pump (A)A1VSO Size Series 31 Nominal pressure 4 psi (28 bar) Peak pressure 51 psi (35 bar) Contents Ordering code - standard range 2 Fluids 4 Technical data 5 Noise level 7 Drive power and flow 8 DG - two point, direct control 1 DR - Pressure control 12 DRG - Pressure control, remote 14 DFR / DFR1 - Pressure flow control 16 DFLR - Pressure / flow / power control 18 Unit dimensions, Size 18 2 Unit dimensions, Size Unit dimensions, Size Unit dimensions, Size Unit dimensions, Size 1 24 Unit dimensions, Size Through drives 26 Overview of through drive mounting options 27 Dimensions of through drives 29 Installation notes 34 Safety information 35 Service Automation Features Mobile Hydraulics RA /1.7 1/36 Replaces: 5.4 Variable displacement axial piston pump of swashplate design for hydrostatic open circuit systems Flow is proportional to drive speed and displacement. It can be infinitely varied by adjustment of the swashplate. SAE mounting flange Flange connections to SAE 2 case drain ports Good suction characteristics Permissible continous pressure 4 psi (28 bar) Low noise level Long service life Axial and radial load of drive shaft possible High power-weight ratio Wide range of controls Short response times Through drive option for multi-circuit system

2 2/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Ordering code - standard range Hydraulic Fluid, Type of rotary group Mineral oil and HFD (no code) HFA, HFB and HFC - Fluids E High-Speed-Version - H Axial Piston Unit Swashplate design, variable size 18 A1VS size 28 to 14 AA1VS Type of operation Pump in open circuit Size in 3 /rev Displacement V g max cm 3 /rev Control device Two-position control, direct controls DG DG Pressure control DR DR DR G DRG remote control Pressure flow control DFR DFR DFR 1 DFR1 without orifice between X and tank Pressure, flow and power control - DFLR Pressure and flow control, electronic, see RA322 DFE1 Electro-hydraulic pressure control, see RE9277 ED Series Direction of rotation Viewed on shaft end clockwise R counter clockwise L Seals NBR nitril-caoutchouc, shaft seal in FKM FKM flour-caoutchouc Shaft end SAE Parallel with key K SAE Splined shaft S SAE Splined shaft (higher through drive torque) - - R SAE Splined shaft (not suitable for through drive) U Mounting flange SAE 2-bolt - C SAE 4-bolt D = available = in preparation - = not available O 31 P V

3 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 3/36 Hyraulic Fluid, Type of rotary group Axial Piston Unit Type of operation Size Control device Series Direction of rotation Seals Shaft end Mounting flange AA1VS O / 31 - Service line connections Pressure port B and suction port S: SAE ports at opposite sides - 62 UNC fixing threads Through drives without through drive N with through drive to accept an axial piston pump or a gear pump Mounting flange SAEJ744 hub sealing 82-2(A) keyed (A-B) axial K4 1) 11-2 (B) keyed (B) axial - K3 1) 11-2 (B-B) keyed (B-B) axial - - K5 1) (C) keyed (C) axial K8 1) (C) keyed (C) radial K38 1) (D) keyed (D) axial K21 1) 82-2 (A) 5/8 in (A) axial K (A) 3/4 in (A-B) axial K (B) 7/8 in (B) axial - K (B) 1 in (B-B) axial - - K (C) 1 1/4 in (C) axial K (C) 1 1/2 in (C-C) axial K (D) 1 3/4 in (D) axial K17 1) Not for new projects. Permitted with reduced through drive torque only (see page 26).

4 4/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Fluids We request, that before starting a project, detailed information about the choice of hydraulic fluids and application conditions are taken from our catalog sheets RE 922 (petroleum oil) and RE 9221 (environmentally acceptable hydraulic fluids). When using environmentally acceptable hydraulic fluids possible limitations for the technical data apply. If necessary please contact our technical department (please indicate type of the hydraulic fluid used in your application when ordering. Operating viscosity range We recommend that the operating viscosity (at operating temperature) for both the efficiency and life of the unit, be chosen within the optimum range of ν opt = opt. operating viscosity SUS ( mm 2 /s) referred to tank temperature at open circuit. Viscosity limits The limiting values for viscosity are as follows: ν min = 6 SUS (1 mm 2 /s) short term (t 1 min) at a max. permissible leakage oil temperature of t max = 195 F (9 C). Please note that the max. fluid temperature of 195 F (9 C) is also not exceeded in certain areas (for instance bearing area). The temperature in the bearing area is approx. 7 F (5 K ) higher than the average leakage fluid temperature. ν max = 75 SUS (16 mm 2 /s) short term (t 1min) on cold start (p 435 psi/3 bar, n 1 rpm, t min = -13 F/-25 C) Selection diagram Viscosity v mm2/s (SUS) (5) (3) (2) (1) (5) (3) (2) (15) (1) (8) (7) (6) VG 22 VG 32 VG 68 VG 46 Notes on the selection of hydraulic fluid In order to select the correct fluid, it is necessary to know the operating temperature in the tank (open circuit) in relation to the ambient temperature. The hydraulic fluid should be selected so that within the operating temperature range, the viscosity is within the optimum range (ν opt. ; see shaded section of the selection diagram). We recommend that the higher viscosity grade is selected in each case. Example: at an ambient temperature of X F ( C) the operating temperature in the tank is 14 F (6 C). In the optimum viscosity range ν opt ( shaded area), this corresponds to viscosity grades VG 46 or VG 68, VG 68 should be selected. Important: The leakage oil temperature is influenced by pressure and speed and is typically higher than the tank temperature. However max. temperature at any point in the system may not exceed 195 F (9 C). At high temperatures please use FKM seals. If the above mentioned conditions cannot be kept due to extreme operating parameters or high ambient temperatures, please consult us. Filtration of fluid The finer the filtration, the better the achieved cleanliness of the fluid and the longer the life of the axial piston unit. To ensure a reliable functioning of the axial piston unit, a minimum cleanliness of VG (-2) (-1) () (1) (2) (3) (4) (5) (6) (7) (8) (9) (-25) Temperature t in F ( C) 2/18/15 acc. to ISO 446 1) is necessary. If the above cleanliness classes cannot be met please consult us. 1) draft issue (4635) 36 (17) 16 (8) v opt.

5 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 5/36 Technical data Inlet operating pressure range Absolute pressure at port S p abs min 12 psi (,8 bar) p abs max 435 psi (3 bar) Output operating pressure range Pressure at port B Nominal pressure p N 4 psi (28 bar) Peak pressure p max 51 psi (35 bar) (Pressure data to DIN 24312) Limitation of pump output pressure spikes is possible with relief valve blocks mounted directly on flange connection, acc. to data sheets R5 88 and RE to be ordered separately. Direction of flow S to B. Case drain pressure The max. permissible pressure of the leakage fluid (at port L, L 1 ) max. 7 psi (,5 bar) higher than inlet pressure at port S, but not higher than 29 psi (2 bar) absolute. p L abs max 29 psi (2 bar) Maximum permissible speed (Speed limit) Graph, showing permissible speed with increased inlet pressure at port S ( pw abs ) resp. reduced displacement(v g < V g max ). Speed n/n max 1,2 1,1 1,,9,7,8,9 High speed version Displacement Vg / Vgmax bar psi 1,6 23 1,4 2 1, , 14.5,9 13, , The size is available in an optional high speed version. This version allows higher drive speeds at max. displacement (higher output flow) without affecting outside dimensions, see table on page 6. Important: The drive speed increase (1.2 n ) refers to the standard drive speed n. e.g. size 1: n max = rpm = 24 rpm WRONG: rpm = 288 rpm Mechanical displacement limiter Mechanical displacement limiter is standard on the nonthrough drive model N, but not possible for the model with through drive. Exception: With DFE1 control a max. displacement screw is not possible at all. V g max : for sizes 18 to 14 Setting range from 5 % to V g max stepless V g min : for sizes 1 to 14 Setting range from zero to 5 % of V g max stepless Input pressure p abs

6 6/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Technical Data Table of values Size (A)A1VSO Standard AA1VSO High Speed Displacement V g max in (cm 3 ) (18) (28) (45) (71) (1) (14) (71) (1) (14) Speed 1), max. at V g max n max rpm at increased inlet pressure n max perm. rpm p abs resp. V g < V gmax Flow, max at n max q vo max gpm (L/min) (59.4) (84) (117) (156) (2) (252) (181) (23) (287) at n E = 18 rpm q vo gpm (L/min) (32) (59) (81) (128) (18) (252) (128) (18) (252) Power, max. ( p = 4 psi (28 bar)) at n max P o max HP (kw) (28) (39) (55) (73) (93) (118) (84) (17) (134) at n E = 18 rpm P HP (kw) (15) (24) (38) (69) (84) (118) (69) (84) (118) Torque, max. at V g max T max ft-lb ( p=4psi (28bar)) (Nm) (8) (125) (2) (316) (445) (623) (316) (445) (623) at V g max T ft-lb ( p=145psi (1bar)) (Nm) (28.6) (45) (72) (113) (159) (223) (113) (159) (223) Moment of inertia J lbs-ft (about drive axis) (kgm 2 ) (.93) (.17) (.33) (.83) (.167) (.242) (.83) (.167) (.242) Fill volume gal. (L).1 (.4).2 (.7).26 (1.).4 (1.6).6 (2.2).8 (3.).4 (1.6).6 (2.2).8 (3.) Weight (without fluid) ca. m lbs (kg) 26.5 (12) 33 (15) 46 (21) 73 (33) 99 (45) 132 (6) 73 (33) 99 (45) 132 (6) Permissible loading of drive shaft max. perm. load Fq F ax max lbf (N) (7) (1) (15) (24) (4) (48) (24) (4) (48) ± Fax X/2 X/2 max. perm. load 2) F X q max lbf (N) (35) (12) (15) (19) (23) (28) (19) (23) (28) 1) These values are valid for an absolute pressure of 14.5 psi (1 bar) at the suction port S. By reducing the displacement or increasing the input pressure the speed can be increased as shown in the diagram. 2) Please consult us for higher radial forces. Determination of size V g n η v ( V g n η v ) Flow q v = [gpm] q v = [L/min] V g p ( V g ) p Torque T = [lb-ft] T = [Nm] 24 π η mh 2 π η mh q v ( q v ) p p Power P = [HP] P = [kw] 1714 η t 6 η t V g = Displacement per revolution in in 3 (cm 3 ) p = Differential pressure in psi (bar) n = Speed in rpm (min 1 ) η v = Volumetric efficiency η mh = Mechanical-hydraulic efficiency = Total efficiency η t

7 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 7/36 Noise level Characteristics for pump Measured in an anechoic chamber Distance from microphone to pump = 3.3 ft (1 m) Measuring error: + 2 db(a) Fluid: Hydraulic oil to ISO VG 46 DIN 51519, t = 122 F (5 C) Size q v max 72 q v zero n = 3 rpm n = 15 rpm q v max q v zero noise level L A [db (A)] psi (5) (1) (15) (2) (25)(28)(bar) operating pressure p Size q v max 72 q v zero 7 q v max 68 n = 3 rpm n = 18 rpm q v zero psi (5) (1) (15) (2) (25)(28)(bar) operating pressure p Size q v max 74 q v zero 72 q v max 7 n = 26 rpm n = 18 rpm q v zero psi noise level L A [db (A)] noise level L A [db (A)] (5) (1) (15) (2) (25)(28)(bar) operating pressure p noise level L A [db (A)] noise level L A [db (A)] Size Size 1 Size 14 noise level L A [db (A)] n = 22 rpm n = 18 rpm q v max q v zero q v max q v zero psi (5) (1) (15) (2) (25)(28)(bar) operating pressure p (5) n = 2 rpm n = 18 rpm q v max q v zero q v max q v zer o psi (5) (1) (15) (2) (25)(28)(bar) operating pressure p n = 18 rpm q v max q v zero psi (1) (15) (2) (25)(28)(bar) operating pressure p

8 8/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Drive power and flow Fluid: Hydraulic oil to ISO VG 46 DIN 51519, t = 122 F (5 C) Size 18 Size 28 Size 45 Size 71 n = 15 rpm n = 33 rpm n = 18 rpm n = 2 rpm n = 18 rpm n = 2 rpm n = 18 rpm n = 2 rpm Flow q v Flow q v Flow q v Flow q v (L/min) gpm (8) (6) (4) (2) (8) (6) (4) (2) 2 1 (L/min) gpm (L/min) (12) (1) (8) (6) (4) (2) (L/min) (16) (14) (12) (1) (8) (6) (4) (2) gpm 3 gpm (5) q v (5) q v (1) (1) (15) (2) Pqv max P qv zero P qv zero 35 (kw) (4) (3) (2) (1) 4psi (25) (28)(bar) P qv max (3) (2) (1) psi (5) q v (1) (15) (2) (25)(28)(bar) operating pressure p P qv zero P qv max HP 4 2 (kw) HP 6 (4) (4) (3) (2) (1) psi (5) q v (1) operating pressure p (15) (2) (25)(28)(bar) operating pressure p P qv max P qv zero 4 2 (kw) HP (6) 8 (5) (6) (5) (4) (3) (2) (1) psi (15) (2) (25)(28)(bar) operating pressure p (kw) HP (8) 1 (7) drive power P drive power P drive power P drive power P

9 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 9/36 Drive power and flow Fluid: Hydraulic oil to ISO VG 46 DIN 51519, t = 122 F (5 C) Size 1 n = 18 rpm n = 2 rpm Size 14 n = 18 rpm Flow q v Flow q v (L/min) gpm (2) 5 (18) (16) 4 (14) (12) 3 (1) (8) 2 (6) (4) 1 (2) q v P qv max P qv zero (kw) HP (1) (9) 12 (8) (7) 1 (6) 8 (5) (4) 6 (3) (2) (1) psi (5) (1) (15) (2) (25)(28)(bar) operating pressure p (L/min) gpm (26) (24) 6 (22) (2) 5 (18) (16) 4 (14) (12) 3 (1) (8) 2 (6) (4) 1 (2) q v P qv max P qv zero (kw) HP (13) (12) 16 (11) 14 (1) (9) 12 (8) 1 (7) (6) 8 (5) 6 (4) (3) 4 (2) 2 (1) psi (5) (1) (15) (2) (25)(28)(bar) operating pressure p Overall efficiency q v p q v p η t = Pqv max 1714 P qv max 6 Volumetric efficiency η v = q v q v theor. ( ) drive power P drive power P

10 1/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 DG - two point, direct control The pump can be set to a minimum swivel angle by connecting an external switching pressure to port X. This will supply the control pistion directly with control oil; a minimum pressure of p st 725 psi (5 bar) is required. The pump can only be switched between V g max or V g min. Please note, that the required switching pressure at port X is directly dependent on the actual operating pressure p B in port B. (See switching pressure diagramm) Control pressure p st in X = psi ( bar) Control pressure p st in X 729 psi (5 bar) psi (bar) 1749 (12) 1457 (1) 729 (5) V g max V g min The max. premissible switching pressure p st is 4 psi (28 bar). Switching pressure diagram req. switching pressure p st (5) (7) 24 (14) 36 (21) 4 psi (28) (bar) operating pressure p B Circuit drawing Ports X B S L1 L with size 1 and 14 only B Pressure port S Inlet port L,L 1 Case drain port (L 1 plugged) X Control port (plugged)

11 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 11/36 Unit dimensions DG Size Size 14 port for counter-clockwise rotation port for counter-clockwise rotation Size A 1 X (plugged) (148) 3.52 (89.5) 3.68 (93,5).12 (3) R 1/4 in (158) 3.94 (1) 4.7 (13,5).12 (3) R 1/4 in (173) 4.33 (11) 4.47 (113,5).12 (3) R 1/4 in (21) 4.86 (123,5) 5.2 (127,5).12 (3) R 1/4 in (268) 5.6 (128,5) 5.22 (132,5).12 (3) R 1/4 in (268) 6.2 (153) 6.22 (158).18 (4) R 1/4 in Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). port for clockwise rotation port for clockwise rotation

12 12/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 DR - Pressure control The pressure controller serves to maintain a constant pressure in a hydraulic system within the range of the pump. The pump therefore supplies only the amount of hydraulic fluid required by the system. Pressure may be steplessly set at the pilot valve. Static characteristic (at n 1 = 15 rpm; t oil = 122 F / 5 C) q v max Flow q v q v min 29 psi (2 bar) 435(3) 36(25) 29(2) 22(15) 145(1) (5) Vgmax Vgmin 4 psi (28 bar) Stepped loading by suddenly opening or closing the pressure line using a pressure relief valve at 3.3 ft (1 m) downstream from the pump pressure outlet. psi (bar) 51(35) 725 hysteresis and pressure rise p max 58 psi (4bar) setting range Dynamic characteristic operating pressure p The opening curves are mean values measured under test conditions with the unit mounted inside the tank. Conditions: n = 15 rpm t oil = 122 F (5 C) Main relief set at 51 psi (35 bar) operating pressure p displacement (swivel angle) Circuit drawing Size Circuit drawing Size 14 Ports B Pressure port S Inlet port L,L 1 Case drain port (L 1 plugged) B S L1 L Controller data Hysteresis and repetitive accuracy p max. 45 psi (3 bar) Pilot oil consumption max. approx.8 gpm (3 L/min) Flow loss at q vmax see pages 8 and 9. Control times with size 1 only t SA [ms] t SA [ms] t SE [ms] Size against 725 psi against 32 psi zero stroke 4 psi (5 bar) (22 bar) (28 bar) stroking time t SA destroking time t SE

13 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 13/36 Unit dimensions DR Size On sizes 18 to 1 the DFR valve is used. The flow control spool is blocked and not tested. Size 14 Size A (15) 4.96 (126) (16) 5.35 (136) (16) 5.75 (146) (16) 6.3 (16) (16) 6.5 (165) (127) 6.65 (169) control valve installed here for counter-clockwise rotation control valve installed here for counter-clockwise rotation adjustment srew for presssure cut off Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). adjustment srew for presssure cut off control valve installed here for clockwise rotation control valve installed here for clockwise rotation

14 14/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 DRG - Pressure control, remote Function and design same as DR. A pressure relief valve may be externally piped to port X for remote control purposes. However it is not included in the scope of supply with the DRG control. The differential presssure at the DRG control spool is set as standard to 2 bar and this results in a pilot flow of.4 gpm (1,5 L/min). If another setting is required, please state this in clear text. We recommend that one of the following is used as the seperate pressure relief valve. DBDH 6 /hydraulic) to R542 or DBETR-SO 381 with orifice DIA.3 in (,8 mm) in P (electric) to R9166. Max, length of piping should not exceed 6.5 ft (2 m). Static characteristic (at n 1 = 15 rpm; t oil = 122 F / 5 C) q v max Flow q v q v min 29 psi (2 bar) hysteresis and pressure rise p max 58 psi (4bar) setting range operating pressure p 4 psi (28 bar) Control data Hysteresis p max. 45 psi (3 bar) Pilot oil requirement approx. 1.2 gpm (4,5 L/min) Flow loss at q vmax see pages 8 and 9. Circuit drawing Size Circuit drawing Size 14 Ports B S L,L 1 X Pressure port Inlet port Case drain port (L 1 plugged) Pilot pressure port not included in scope of supply with size 1 only not included in scope of supply

15 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 15/36 Unit dimensions DRG Size Size 14 adapter control valve installed here for counter-clockwise rotation control valve installed here for counter-clockwise rotation setting srew for max. presssure cut off Size A 1 A 5 Port X Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). control valve installed here for clockwise rotation control valve installed here for clockwise rotation setting srew for differential presssure setting srew for differential presssure (14,5) 4.94 (125) 4.29 (19) 1.57 (4) 5.12 (13) 7/16-2 UNF-2B;.45 (11,5) deep (16) 5.35 (136) 4.69 (119) 1.57 (4) 5.43 (138) 7/16-2 UNF-2B;.45 (11,5) deep (16) 5.75 (146) 5.8 (129) 1.57 (4) 6.2 (153) 7/16-2 UNF-2B;.45 (11,5) deep (16) 6.3 (16) 5.63 (143) 1.57 (4) 7.13 (181) 7/16-2 UNF-2B;.45 (11,5) deep (16) 6.5 (165) 5.83 (148) 1.57 (4) 9.76 (248) 7/16-2 UNF-2B;.45 (11,5) deep (127) 6.65 (169) 5.63 (143) 1.6 (27) 8.74 (222) 9/16-18 UNF-2B;.51 (13) deep

16 16/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 DFR / DFR1 - Pressure flow control In addition to the pressure control function, the pump flow to the actuator may be varied by means of a differential pressure (e.g. over an orifice or directional control valve). The pump supplies only the amount of fluid as required by the actuator. In the DFR1-valve version the orifice between the X port and tank is plugged. For function and content of pressure control see pages 12. Static characteristic (at n 1 = 15 rpm; t oil = 122 F / 5 C) q v max Flow q v q v min psi (2 bar) operating pressure p Static characteristic at variable speed Flow q v setting range 4 psi (28 bar) speed n Dynamic characteristic operating curve psi (bar) 1 51(35) 435(3) 4(28) 75 36(25) displacement V g % 29(2) 22(15) 145(1) 725 (5) 26 (18) (stand by) q v (see table) q v (see table) load pressure stroking time t SA destroking time t SE t SA [ms] t SE [ms] t SE [ms] Size 4 psi 4 psi 725 psi (28 bar)-stand by (28 bar)-stand by (5 bar)-stand by Circuit drawing Size Circuit drawing Size 14 Ports not included in scope of supply with size 1 only not included in scope of supply B Pressure port S Inlet port L,L 1 Drain port (L 1 closed) X Pilot pressure port Differential pressure p: with DFR1 plugged with DFR1 plugged Standard setting: 2 psi (14 bar). If a different setting is required please state in clear text. When port X is loaded to tank (and outlet B is closed), a zero stroke pressure (standby) of p = 26+3 psi (18+2 bar) results. (depends on p) Control data For technical data of pressure control see page 12. Max. flow deviation (hysteresis and rise) measured at drive speed n = 15 rpm. Size qv max gpm (L/min) (,9) (1,) (1,8) (2,8) (4,) (6,) DFR pilot oil consumption max. approx gpm (3... 4,5 L/min) DFR1 pilot oil consumption max. approx..8 gpm (3 L/min) Flow loss at q vmax see pages 8 and 9.

17 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 17/36 Unit dimensions DFR Size Size 14 adapter position of valve for counter-clockwise rotation position of valve for counter-clockwise rotation Size A 1 A 5 Port X Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). setting srew for presssure control setting srew for flow control / differential presssure setting srew for presssure control position of valve for clockwise rotation setting srew for flow control differential presssure position of valve for clockwise rotation (15) 4.96 (126) 4.29 (19) 1.57 (4) 4.29 (19) 7/16-2 UNF-2B;.45 (11,5) deep (16) 5.35 (136) 4.69 (119) 1.57 (4) 5.43 (138) 7/16-2 UNF-2B;.45 (11,5) deep (16) 5.75 (146) 5.8 (129) 1.57 (4) 6.2 (153) 7/16-2 UNF-2B;.45 (11,5) deep (16) 6.3 (16) 5.63 (143) 1.57 (4) 7.13 (181) 7/16-2 UNF-2B;.45 (11,5) deep (16) 6.5 (165) 5.83 (148) 1.57 (4) 9.76 (248) 7/16-2 UNF-2B;.45 (11,5) deep (127) 8.23 (29) 7.2 (183) 1.6 (27) 8.74 (222) 9/16-18 UNF-2B;.51 (13) deep

18 18/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 DFLR - Pressure / flow / power control In order to achieve a constant drive torque with a varying operating pressure, the swivel angle and with it the output flow from the axial piston unit is varied so that the product of flow and pressure remains constant. Flow control is possible below the limit of the power curve. Static characteristic Flow q v [%] (5) Minimum power curve Maximum power curve (1) (15) (2) (25) 36 (28) 4 (3) 435psi (bar) operating pressure p The power characteristic is set at the factory, please state your requirements in clear text e.g. 27 HP (2 kw) at 18 rpm. Control data For technical data constant pressure control see page 12. For technical data flow control see page 16. Start of control from 116 psi (8bar) Pilot oil consumption max. approx gpm (5,5 L/min) Flow loss at q vmax see pages 8 and 9. Circuit drawing Size Circuit drawing Size 14 not included in scope of supply not included in scope of supply Ports B Pressure port S Inlet port L,L 1 Case drain port (L 1 closed) X Pilot pressure port with size 1 only

19 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 19/36 Unit dimensions DFLR Size Size 14 power valve power valve position of valve for counter-clockwise rotation position of valve for counter-clockwise rotation Size A 1 A 5 A 6 Port X Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). position of valve for clockwise rotation position of valve for clockwise rotation (16) 5.35 (136) 4.69 (119) 1.57 (4) 7.6 (193) 4.21 (17) 7/16-2 UNF-2B;.39 (1) deep (16) 5.75 (146) 5.8 (129) 1.57 (4) 8.23 (29) 4.41 (112) 7/16-2 UNF-2B;.39 (1) deep (16) 6.3 (16) 5.63 (143) 1.57 (4) 9.37 (238) 4.88 (124) 7/16-2 UNF-2B;.39 (1) deep (16) 6.5 (165) 5.83 (148) 1.57 (4) (33) 5.8 (129) 7/16-2 UNF-2B;.39 (1) deep (127) 8.23 (29) 7.2 (183) 2.22 (56,4) (314) 5.51 (14) 9/16-18 UNF-2B;.51 (13) deep

20 2/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Unit dimensions, Size 18 Version AA1VSO 18 XXXX/31X-XXX62N (Ø82.55 ) h8.25 (6.3) Flange SAE J (A) DIA.45 (11.5) 1.69 (43) Shaft ends K Parallel with key ISO (Ø19.5.2) DIA.83 (21.1) Centering 3) R3.15x6.7 DIN (28.6) 1.3 (33) ( ).1 (2.5) 1.61 (41) 3.27 (83) L 1 3/4 in L 5.71 (145) 7.68 (195) W R Splined shaft 3/4 in 11T 16/32 DP 1) SAE J (A-B).55 (14) V 1.5 (38) 2.48 (63) 2.48 (63) usable spline length 2.6 (66) 2.52 (64).43 (11) mech. displacement limiter Ø 3/4 in 1/4-2UNC-2B.87 (22) 1.18 (3) 1.5 (38) 4.19 (16.4) 5.98 (152) 2.64 (67) Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm) (47.6).79 (2) 2.6 (52.4).98 (25).62 (15.8).94 (23.8) 1.25 (31.8).87 (22.2) 1.3 (26.2) Centering 3) R3.15x6.7 DIN332 Ports Tightening torques, max. 2) B Pressure port (standard pressure range) SAE J518 3/4 in Threading in bolt holes ISO 68 3/8-16 UNC-2B;.79 (2) deep 29 lb-ft (4 Nm) S Inlet port (standard pressure range) SAE J518 1 in Threading in bolt holes ISO 68 3/8-16 UNC-2B;.79 (2) deep 29 lb-ft (4 Nm) L/L 1 Case drain port (L 1 plugged) ISO /16-18 UNF-2B 59 lb-ft (8 Nm) 1) ANSI B92.1a-1976, pressure angle 3, flat root side fit, tolerance class 5 2) See safety information 3) Axial locking of the coupling e.g. via clamping coupling or radial mounted binding screw S Splined shaft 3/4 in 11T 16/32 DP 1) SAE J (A-B) View W View V U Splined shaft 5/8 in 9T 16/32 DP 1) SAE J (A) B S

21 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 21/36 Unit dimensions, Size 28 Version AA1VSO 28 XXXX/31X-XXX62N Flange SAE J (B) Shaft ends K Parallel with key ISO mech. displacement limiter R Splined shaft 7/8 in 13T 16/32 DP 1) SAE J (B) usable spline length Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). S Splined shaft 7/8 in 13T 16/32 DP 1) SAE J (B) Ports Tightening torques, max. 2) B Pressure port (standard pressure range) SAE J518 3/4 in Threading in bolt holes ISO 68 3/8-16 UNC-2B;.71 (18) deep 29 lb-ft (4 Nm) S Inlet port (standard pressure range) SAE J /4 in Threading in bolt holes ISO 68 7/16-14 UNC-2B;.94 (24) deep 48 lb-ft (65 Nm) L/L 1 Case drain port (L 1 plugged) ISO /4-16 UNF-2B 118 lb-ft (16 Nm) 1) ANSI B92.1a-1976, pressure angle 3, flat root side fit, tolerance class 5 2) See safety information View W View V

22 22/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Unit dimensions, Size 45 Version AA1VSO 45 XXXX/31X-XXX62N Flange SAE J (B) Shaft ends K Parallel with key ISO R Splined shaft 1 in 15T 16/32 DP 1) SAE J (B-B) in 9, mech. displacement limiter usable spline length S Splined shaft 1 in 15T 16/32 DP 1) SAE J (B-B) Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). View W U Splined shaft 7/8 in 13T 16/32 DP 1) SAE J (B) Ports Tightening torques, max. 2) View V B Pressure port (standard pressure range) SAE J518 1 in Threading in bolt holes ISO 68 3/8-16 UNC-2B;.71 (18) deep 29 lb-ft (4 Nm) S Inlet port (standard pressure range) SAE J /2 in Threading in bolt holes ISO 68 1/2-13 UNC-2B;.87 (22) deep 66 lb-ft (9 Nm) L/L 1 Case drain port (L 1 plugged) ISO /8-14 UNF-2B 177 lb-ft (24 Nm) 1) ANSI B92.1a-1976, pressure angle 3, flat root side fit, tolerance class 5 2) See safety information

23 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 23/36 Unit dimensions, Size 71 Version AA1VSO 71 XXXX/31X-XXX92N Flange SAE J (C) Shaft ends K Parallel with key ISO mech. displacement limiter R Splined shaft 1 1/4 in 14T 12/24 DP 1) SAE J (C) in usable spline length Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). View W View V S Splined shaft 1 1/4 in 14T 12/24 DP 1) SAE J (C) Ports Tightening torques, max. 2) B Pressure port (standard pressure range) SAE J518 1 in Threading in bolt holes ISO 68 3/8-16 UNC-2B;.71 (18) deep 29 lb-ft (4 Nm) S Inlet port (standard pressure range) SAE J518 2 in Threading in bolt holes ISO 68 1/2-13 UNC-2B;.87 (22) deep 66 lb-ft (9 Nm) L/L 1 Case drain port (L 1 plugged) ISO /8-14 UNF-2B 177 lb-ft (24 Nm) 1) ANSI B92.1a-1976, pressure angle 3, flat root side fit, tolerance class 5 2) See safety information

24 24/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Unit dimensions, Size 1 Version AA1VSO 1 XXXX/31X-XXX62N Flange SAE J (C) Shaft ends K Parallel with key ISO mech. displacement limiter S Splined shaft 1 1/2 in 17T 12/24 DP 1) SAE J (C-C) in Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). View W U Splined shaft 1 1/4 in 14T 12/24 DP 1) SAE J (C) Ports Tightening torques, max. 2) View V B Pressure port (high pressure range) SAE J /4 in Threading in bolt holes ISO 68 1/2-13 UNC-2B;.75 (19) deep 66 lb-ft (9 Nm) S Inlet port (standard pressure range) SAE J /2 in Threading in bolt holes ISO 68 1/2-13 UNC-2B;.94 (27) deep 66 lb-ft (9 Nm) L/L 1 Case drain port (L 1 plugged) ISO /16-12 UN-2B 265 lb-ft (36 Nm) 1) ANSI B92.1a-1976, pressure angle 3, flat root side fit, tolerance class 5 2) See safety information mech. displacement limiter max. mech. displacement limiter min. mech. displacement limiter min. mech. displacement limiter max.

25 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 25/36 Unit dimensions, Size 14 Version AA1VSO 14 XXXX/31X-XXX62N Flange SAE J (D) Shaft ends K Parallel with key ISO mech. displacement limiter S Splined shaft 1 3/4 in 13T 8/16 DP 1) SAE J (D) Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). View W View V mech. displacement limiter max. mech. displacement limiter min. mech. displacement limiter min. mech. displacement limiter max. Ports Tightening torques, max. 2) B Pressure port (high pressure range) SAE J /4 in Threading in bolt holes ISO 68 1/2-13 UNC-2B;.75 (24) deep 66 lb-ft (9 Nm) S Inlet port (standard pressure range) SAE J /2 in Threading in bolt holes ISO 68 1/2-13 UNC-2B;.94 (24) deep 66 lb-ft (9 Nm) L/L 1 Case drain port (L 1 plugged) ISO /16-12 UN-2B 265 lb-ft (36 Nm) 1) ANSI B92.1a-1976, pressure angle 3, flat root side fit, tolerance class 5 2) See safety information

26 26/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Through drives Axial piston units (A)A1VSO can be supplied with a through drive as shown in the ordering code on page 3. The type of through drive is determined by codes (K4-K...). If the combination pump is not mounted in the factory, the simple type code is sufficient. Included in this case are: shaft coupler, seals, and if necessary an adapter flange. Maximum permissible input and through drive torque. T tot The drive torques for pump 1 and pump 2 can be split up as required. However the max. permissible input torque T tot as well as the max. permissible through drive torque T thr may not be exceeded. Max. perm. input torque T tot With shaft U T tot lb.ft (Nm) 43 (59) - (-) 139 (188) - (-) 439 (595) - (-) With shaft K T tot lb.ft (Nm) 77 (14) 17 (145) 156 (212) 319 (433) 553 (75) 875 (1186) With shaft S T tot lb.ft (Nm) 92 (124) 146 (198) 235 (319) 462 (626) 814 (114) 1195 (162) With shaft R T tot lb.ft (Nm) 111 (15) 166 (225) 295 (4) 475 (644) - (-) - (-) Max. perm. through drive torque T thr With shaft K T thr lb.ft (Nm) 77 (14) 17 (145) 156 (212) 319 (433) 553 (75) 875 (1186) With shaft S T thr lb.ft (Nm) 8 (18) 118 (16) 235 (319) 363 (492) 574 (778) 934 (1266) With shaft R T thr lb.ft (Nm) 88 (12) 13 (176) 269 (365) 44 (548) - (-) - (-) Keyed shaft T thr keyed lb.ft (Nm) 53 (72) 83 (112) 132 (179) 29 (283) 293 (398) 411 (557) T tot = max. permissible input torque pump 1 T thr = max. permissible through drive torque T thr keyed = max. permissible through drive torque at through drive to keyed shaft Permissible overhang moment Size Permissible overhang moment T m lb.ft (Nm) 369 (5) 649 (88) 11 (137) 1593 (216) 2213 (3) 3319 (45) at dyn. acceleration T m lb.ft (Nm) 37 (5) 65 (88) 11 (137) 159 (216) 221 (3) 332 (45) 1g = 98.1 m/s 2 T thr m 1, m 2, m 3 weight of pump [lbs (kg)] Weight m lbs (kg) 26,5 (12) 33 (15) 46 (21) 73 (33) 99 (45) 132 (6) Distance to center of gravity l 1 in (mm) 3.54 (9) 4.33 (11) 5.12 (13) 5.91 (15) 6.3 (16) 6.3 (16) l 1, l 2, l 3 distance to center of gravity [in (mm)] 1 T m = (m 1 l 1 + m 2 l 3 + m 3 l 3 ) [lb.ft] [Nm] 12

27 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 27/36 Overview of through drive mounting options Through drives - (A)A1VSO 1) Not with K68 through drive on main pump size 28 2) Not with K4 through drive on main pump size 45 3) Not with K7 through drive on main pump size 71 Mounting option - 2 nd pump Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). Flange hub code (A)A1VSO.../31... A1V(S)O.../52 gear pump aviable on SAE J744 keyed size (shaft) size (shaft) size 82-2(A) keyed (A-B) K4 18 (K) 1 (K) (B) keyed (B) K3 28 (K) 28 (K) (B-B) keyed (B-B) K5 45 (K) 6, 45 (K) (C) keyed (C) K8 71 (K) (C) keyed (C) K38 1 (K) 85 (K) (D) keyed (D) K21 14 (K) SAE J744 splined 82-2 (A) 5/8 in (A) K1 18 (U) - size F (A) 3/4 in (A-B) K52 18 (S, R) 1 (S) (B) 7/8 in (B) K68 28 (S, R) 28 (S, R) size N, G (U) 1) 45 (U, W) 1) 11-2 (B) 1 in (B-B) K4 45 (S, R) 45 (S, R) (U, W) 2) (C) 1 1/4 in (C) K7 71 (S, R) 85 (U, W) 3) (U) 3) (C) 1 1/2 in (C-C) K24 1 (S) 85 (S) (D) 1 3/4 in (D) K17 14 (S)

28 28/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Unit dimensions combination pumps (A)A1VSO (2 nd pump) (1 st pump) A A A A A A Dimensions in millimeters (A)A1VSO (1 st Pump) (A)A1VSO (2 nd Pump) Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). (A)A1VSO (2 nd pump) (1 st pump) A A A A A A Dimensions in inches 1. If a second Rexroth pump must be factory mounted the two individual model codes must be combined with a +. Model code pump 1+ model code pump 2. Ordering example: AA1VSO71 DR/31 L-PKC92K68 + AA1VSO28 DR/31L- PSC62N 2. If a gear pump or a radial piston pump is to be factory mounted as a second pump please consult the factory.

29 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 29/36 Dimensions of through drives K4 1) Flange SAE J (A) Hub for keyed shaft to ISO omitted on size (6.38) omitted on size 28 DIA 5.75 (Ø146).25 (6.38) omitted on size 28 DIA 5.75 (Ø146) A B A B 45 A4.31 (8) omitted on size (1) A3 to pump mounting flange A1 45 omitted on size 28 to pump mounting flange K3 1) Flange SAE J (B) Hub for keyed shaft to ISO K5 1) Flange SAE J (B-B) Hub for keyed shaft SAE to ISO section A - B section A - B A4.31 (8) omitted on size (1) A3 to pump mounting flange A1 M12 section A - B.8762 DIA.875 (Ø ) M DIA 1. (Ø ) thread metric.99 (25.22) thread metric 1.12 (28.4) 4.2 DI.8 thread metric 4.2 DI (Ø ) +.5 (Ø ) Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). Size A (24).63 (16) 1.85 (47) (229).63 (16) 2.9 (53) (267).79 (2) 2.4 (61) (338).79 (2) 2.56 (65) (35).67 (17) 3.3 (77) Size A (24).71 (18) 1.85 (47) (229).71 (18) 2.9 (53) (267).79 (2) 2.4 (61) (338).79 (2) 2.56 (65) (35).79 (2) 3.3 (77) Size A (229).71 (18) 2.9 (53) (267).79 (2) 2.4 (61) (338).79 (2) 2.56 (65) (35).79 (2) 3.3 (77) 1) Not for new projects. Permitted with reduced through drive torque only (see page 26).

30 3/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Dimensions of through drives K8 1) Flange SAE J (C) Hub for keyed shaft to ISO omitted on size 28 omitted on size 28 to pump mounting flange K38 1) Flange SAE J (C) Hub for keyed shaft SAE to ISO to pump mounting flange K21 1) Flange SAE J (D) Hub for keyed shaft to ISO to pump mounting flange section A - B section A - B section A - B thread metric thread metric thread metric Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). Size A (267).71 (18) 2.4 (61) (338).95 (24) 2.52 (64) (35).95 (24) 2.62 (66,5) Size A (338).95 (24) 2.56 (65) (35).95 (24) 3.3 (77) Size A (35) approx..83 (ca. 21) 3.3 (77) 1) Not for new projects. Permitted with reduced through drive torque only (see page 26).

31 ) RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 31/36 Dimensions of through drives K1 Flange SAE J (A) Hub for splined shaft to ANSI B.92.1a /8 in 9T 16/32 DP 1) (SAE J (A)) Size A 1 section A - B (182).57 (14,5) 1.65 (42) (24).63 (16) 1.85 (47) (229).63 (16) 2.9 (53) (267).79 (2) 2.4 (61) (338).79 (2) 2.56 (65) (35).63 (17) 3.3 (77) K52 Flange SAE J (A) Hub for splined shaft to ANSI B.92.1a /4 in 11T 16/32 DP 1) (SAE J (A-B)) B A 5 45 A DIA 5.75 DI.19 (ø16.5) K68 Flange SAE J (B) 45 (ø146) to pump mounting flange section A - B to pump mounting flange A 1 thread metric DI (ø ) A 5.39 (1) thread metric DI (ø Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). Size A 1 A M1;.57 (14,5) deep (182) (4) (18,8) (43) M1;.63 (16) deep (24) (39) (18,8) (47) M1;.63 (16) deep (229) (4,5) (18,9) (53) M1;.79 (2) deep (267) (4) (21,3) (61) M1;.79 (2) deep (338) (4) (19) (65) M1;.67 (17) deep (35) (41) (18,9) (77) Hub for splined shaft to ANSI B.92.1a /8 in 13T 16/32 DP 1) (SAE J (B)) Size A 1 A 5 section A - B M12;.71 (18) deep A (24) (43) (17,8) (47) omitted on size M12;.71 (18) deep (229) (42) (17,9) (53) A M12;.79 (2) deep (267) (43) (2,3) (61) M12;.79 (2) deep (338) (41) (18) (65).39 (1) M12;.79 (2) deep B to pump mounting A 1 flange thread (35) (44) (17,9) (77) metric 1) pressure angle 3, flat root side fit, tolerance class 5

32 32/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Dimensions of through drives K4 Flange SAE J (B) Hub for splined shaft to ANSI B.92.1a in 15T 16/32 DP 1) (SAE J (B-B)) B A B A 45 DIA 5.75 (ø146) K7 Flange SAE J (C) 45 DIA 7.13 (ø181) K24 Flange SAE J (C) section A - B A 1 A 1 DI ,5 (ø11,6 +,2 ) A 5.39 (1) Hub for splined shaft to ANSI B.92.1a /4 in 14T 12/24 DP 1) (SAE J (C)) omitted on size 71 to pump mounting flange A 5 thread metric omitted on size 71 DIA (ø ).51 (13) Size A 1 A M12;.71 (18) deep (229) (47,5) (18,4) (53) M12;.79 (2) deep (267) (47,5) (2,8) (61) M12;.79 (2) deep (338) (47,5) (18,2) (65) M12;.79 (2) deep (35) (47,5) (18,4) (77) Size A 1 A M16;.7 (18) deep (267) (55,5) (22) (61) M16;.95 (24) deep (338) (57) (19,5) (65) M16;.95 (24) deep (35) (6) (19,4) (77) Hub for splined shaft to ANSI B.92.1a /2 in 17T 12/24 DP 1) (SAE J (C-C)) Size A 1 section A - B (338).95 (24) 2.56 (65) (35).95 (34) 3.3 (77) to pump mounting flange section A - B to pump mounting flange thread metric thread metric Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). 1) pressure angle 3, flat root side fit, tolerance class 5

33 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 33/36 Dimensions of through drives K17 Flange SAE J (D) Hub for splined shaft to ANSI B.92.1a /4 in 13T 8/16 DP 1) (SAE J (D)) to pump mounting flange section A - B thread metric Before finalising your design, please request a certified installation drawing. Dimensions in inches (mm). Size A (35) approx..83 (ca. 21) 3.3 (77)

34 34/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Installation notes Optional installation position.the pump housing must be filled with fluid during commissionig and operation. In order to attain the lowest noise level, all connections (suction, pressure, pilot, case drain) must be linked by flexible members to tank. Avoid placing a check valve in the case drain line. The case drain hose corresponding to the size of the case drain port should be installed at the highest case drain port location. Vertical installation (shaft end upwards) Following installation conditions must be taken into account: Arrangement inside the reservoir Before installation fill pump housing, keeping it in a horizontal position. a) If the min. fluid level is equal to or above the pump mounting surface: Close port L, "L 1 " and S open; L 1 piped and also S with suction pipe (see fig. 1). b) If the min. fluid level is below the pump mounting surface: pipe port L and S acc. to fig. 2, close port L (compare item limiting conditions) Note: In order to avoid demages to the pump, all attached parts (e.g. protective caps, covers, etc.) must be removed before installation. Fluid fig. 1 Arrangement outside the reservoir Before installation fill pump housing while keeping it in a horizontal position. For mounting above the tank see fig. 2. Limiting condition: Min. pump inlet pressure p abs min = 12 psi (,8 bar) under static and dynamic loading. Note: Avoid mounting above tank wherever possible in order to attain a low noise level. The permissible suction height h is a result of the overall pressure loss, but may not be greater than h max = 31.5 in (8 mm) (Immersion depth h t min = 8 in/2 mm). Overall pressure loss p Ges = p 1 + p 2 + p 3 (1 p abs min ) =,2 bar p 1 : Pressure loss inpipe due to accelerating column of fluid p 1 = L 1 min. 8 in (2mm) L 1 S h t min h max ρ. l. dv dt. 1 5 [bar] S Fluid L baffle L fig. 2 ρ =density [kg/m 3 ] l = pipe lenth [m] dv/dt = rate of change in fluid velocity[m/s 2 ] p 2 : Pressure lodd due to static head p 2 = h. ρ. g. 1 5 [bar] h = head [m] ρ = density [kg/m 3 ] g = gravity. = 9,81 m/s 2 p 3 : line losses (elbows etc.) Horizontal installation The pump must be installaed in such a manner, that either L or L1 is at the top. Arrangement inside the reservoir a) If the min. fluid level is above the top of the pump: Close L 1, "L" and S open, mount suction pipe to port S, and pipe L at least 2 mm away from suction pipe. (see. fig. 3) b)if the min. fluid level is equal to or below the top of the pump: Pipe port "L" and "S" acc.to.fig. 4, port "L 1 " closed. (compare limiting conditions) Note: In order to avoid demages to the pump, all attached parts (e.g. protective caps, covers, etc.) must be removed before installation. L L 1 Fluid min. 8 in (2mm) Arrangement outside the reservoir Fill pump housing before commissioning. Pipe port S and the higher port L or L 1 a) When mounting above the reservoir: see fig. 4 (compare item limiting conditions) b) Mounting below the reservoir: pipe ports L and S according to fig. 5, L closed. baffle L L 1 baffle L 1 Fluid S L Fluid h t min h t min h t min h max S S fig. 3 fig. 4 fig. 5

35 RA /1.7 (A)A1VSO Industrial Hydraulics Bosch Rexroth AG 35/36 Safety information Pump (A)A1VSO was designed for operation in open loop circuits. Systems design, installation and commissioning require trained technicians or tradesmen. All hydraulic ports can only be used for the fastening of hydraulic service lines. Tightening torques: The tightening torques mentioned in this data sheet are maximum values and must not be exceeded (max. values for thread). Manufacturers information concerning the maximum permitted tightening torques of the various fittings is to be observed! For ISO68/DIN 13 mounting bolts, we recommend that tightening torques be checked on a case by case basis in accordance with VDI 223, published 23. During and shortly after operation of a pump the housing and especially a solenoid can be extremely hot, avoid being burned!

36 36/36 Bosch Rexroth AG Industrial Hydraulics (A)A1VSO RA /1.7 Bosch Rexroth Corporation Mobile Hydraulics Axial & Radial Piston Units 8 Southchase Court Fountain Inn, SC USA Telephone (864) Facsimile (864) Bosch Rexroth Corporation All rights reserved. Neither this document, nor any part of it, may be reproduced, duplicated, circulated or disseminated, whether by copy, electronic format or any other means, without the prior consent and authorization of Bosch Rexroth Corporation. The data and illustrations in this brochure/data sheet are intended only to describe or depict the products. No representation or warranty, either express or implied, relating to merchantability or fitness for intended use, is given or intended by virtue of the information contained in this brochure/data sheet. The information contained in this brochure/data sheet in no way relieves the user of its obligation to insure the proper use of the products for a specific use or application. All products contained in this brochure/data sheet are subject to normal wear and tear from usage.