Fixed Displacement Pump A2FO

Transcription

1 Industrial Hydraulics Electric Drives and Controls Linear Motion and Assembly echnologies Pneumatics ervice Automation Mobile Hydraulics Fixed Displacement Pump A2FO RE /09.00 replaces: for open circuits izes eries 6 Nominal pressure up to 400 bar Peak pressure up to 450 bar Inhalt Features 1 Ordering Code / tandard Program 2 echnical Data Ordering Code - ize 5 7 Unit Dimensions, ize 5 7 Unit Dimensions, izes 10, 12, 16 8 Unit Dimensions, izes 23, 28, 32 9 Unit Dimensions, ize Unit Dimensions, izes 56, Unit Dimensions, izes 80, Unit Dimensions, izes 107, Unit Dimensions, izes 160, Unit Dimensions, ize Unit Dimensions, ize Unit Dimensions, ize Unit Dimensions, ize Unit Dimensions, ize Unit Dimensions, ize Preferred ypes 18 Installation and Commissioning Guidelines 19 Features Fixed displacement pump A2FO of axial piston, bent axis design is made suitable for hydrostatic drives in open circuits. uitable for use in mobile or industrial applications. Output flow is proportional to drive speed and displacement. he drive shaft bearings are designed to give the service life expected in these areas of operation. Careful selection of the displacements offered, permit sizes to be matched to practically every application. Favourable power / weight ratio Compact and economical design Optimum efficiency One piece pistons with piston rings

2 2/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 Ordering Code / tandard Program (Ordering code size 5 see page 7) Hydraulic fluid Mineral oil (no code) HFB-, HFC-, HFD- sizes (no code) fluids sizes ) E- A2F O / 6 Axial piston unit Bent axis design, fixed displacement A2F Drive shaft bearings Mechanical bearings (no code) Long-Life bearings L Mode of operation Pump, open circuit O ize Displacement V g (cm 3 ) izes : production Elchingen plant; sizes : production Horb plant eries 6 Index sizes size sizes Direction of rotation Viewed on shaft end clockwise R anti-clockwise L eals NBR (nitril-caoutchouc) P NBR (nitril-caoutchouc), shaft seal in FKM (fluor-caoutchouc) N FKM (fluor-caoutchouc) V haft end plined shaft A DIN 5480 Z Parallel shaft with B key, DIN 6885 P Mounting flange IO 4-hole B IO 8-hole H ervice line connections 2 ) A(B) AE, at side 05 AE, at rear A(B) threads at side 06 threads, at rear A(B) AE, at rear 11 AE, at rear = preferred program (preferred types see page 18) = available = not available 1 ) only in connection with drive shaft bearings "L" 2 ) threads of fixing screws are metric

3 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 3/20 echnical Data Fluid o review the application of A2FO pumps with the selected hydraulic fluid, detailed fluid compatibility and application data can be found in data sheets RE (mineral oil), RE (environmentally acceptable hydraulic fluids) and RE (fire resistant fluids, HF). he fixed pump A2FO is not suitable for operation with HFA. When using HFB-, HFC-, HFD- or environmentally acceptable hydraulic fluids possible limitations for the technical data have to be taken into consideration. If necessary please consult our technical department (please indicate type of the hydraulic fluid used for your application on the order sheet). Operating viscosity range In order to optain optimum efficiency and service life, we recommend that the operating viscosity (at operating temperature) be selected from within the range: ν opt = operating viscosity mm 2 /s referred to the tank temperature (open circuit). Viscosity limits he limiting values for viscosity are as follows: izes ν min = 5 mm 2 /s, short term at a max. permissible temperature of t max = 115 C ν max = 1600 mm 2 /s, short term on cold start (t min = -40 C) izes ν min = 10 mm 2 /s, short term at a max. permissible leakage oil temp. of t max = 90 ν max = 1000 mm 2 /s, short term on cold start (t min = -25 C) Please note that the max. fluid temperature is also not exceeded in certain areas (for instance bearing area). At temperatures of -25 C up to -40 C special measures may be required for certain installation positions. Please contact us for further information. election diagram Notes on the selection of the 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. he hydraulic fluid should be selected so that within the operating temperature range, the operating viscosity lies within the optimum range (ν opt ) (see shaded section of the selection diagram). We recommend that the highest possible viscosity range should be chosen in each case. Example: At an ambient temperature of X C the operating temperature is 60 C. Within the operating viscosity range (ν opt ; shaded area), this corresponds to viscosity ranges VG 46 or VG 68. VG 68 should be selected. Important: he leakage oil (case drain oil) temperature is influenced by pressure and pump speed and is always higher than the tank temperature. However, at no point in the circuit may the temperature exceed 115 C for sizes or 90 C for sizes If it is not possible to comply with the above conditions because of extreme operating parameters or high ambient temperatures please consult us. Filtration he finer the filtration the better the achieved cleanliness level of the pressure fluid and the longer the life of the axial piston unit. o ensure the functioning of the axial piston unit a minimum cleanliness level of 9 to NA /15 to IO/DI 4406 is necessary. At very high temperatures of the hydraulic fluid (90 C to max. 115 C, not permissible for sizes !) at least cleanliness level 8 to NA /14 to IO/DI 4406 is necessary. If above mentioned grades cannot be maintained please consult supplier. Direction of flow clockwise rotation to B anti-clockwise rotation to A viscosity ν (mm 2 /s) VG 22 VG 32 VG 68 VG 46 VG ν opt. ymbol A, B ervice line ports uction port Drain port U Port for bearing flushing (sizes ) U t min = -40 C fluid temperature range temperature t ( C) t max = +115 C

4 4/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 echnical Data Case drain pressure haft seal ring FKM (fluor-caoutchouc) he lower the speed and the case drain pressure the higher the life expectation of the shaft seal ring. he values shown in the diagram are permissible loads of the seal ring and shall not be exceeded. With constant case pressure in the range of the max. permissible case pressure a reduction of the life expectancy of the seal ring will result. For a short period (t < 5 min.) for the sizes pressure loads up to 5 bar independent from rotational speeds are permissible. izes perm. pressure p abs. max. (bar) 5 sizes 80, 90 4 sizes 107, sizes 160, size izes perm. pressure p abs. max. (bar) ,5 3 sizes 10, 12, speed n (rpm) sizes 23, 28, 32 size sizes 56, 63 speed n (rpm) size 250 size 355 2,5 sizes sizes 710 1,5 size haft seal ring NBR (nitril-caoutchouc) sizes For seal rings of NBR 33% reduced values for the max. permissible housing pressure p abs.max. are to be considered compared with seals of FKM. pecial operation conditions may require limitations of these values. - maximum permissible pump speeds are given in the table on page 5 - max. perm. casing pressure p abs. max 10 bar (sizes ) 4 bar (sizes ) - the pressure in the housing must be the same as or greater than the external pressure on the shaft seal Working pressure range inlet Minimum pressure at port p abs. min 0,8 bar Working pressure range outlet Maximum pressure at port A or B (Pressure data to DIN 24312) ize 5 haft end B haft end C Nominal pressure p N 210 bar 315 bar Peak pressure p max 250 bar 350 bar izes ) haft end A, Z 2 ) haft end B, P Nominal pressure p N 400 bar 350 bar Peak pressure p max 450 bar 400 bar 1 ) Attention: shaft end Z and P with drives of radial force loads at the drive shaft (pinion V-belt drives) necessitate reduction of the nominal pressure to p N = 315 bar. 2) shaft end Z for size 56:, p max = 400 bar izes Nominal pressure p N Peak pressure p max 350 bar 400 bar With pulsating loads above 315 bar we recommend using the model with splined shaft, standard version A (sizes ) or with splined shaft Z (sizes ). Long-Life bearings (L) (sizes ) (for high life expectancy and use of HF-fluids) he outer dimensions of the axial piston pumps are identical to standard design (without long life bearings). he change from standard design to long life bearing system is possible. We recommend to apply bearing flushing at port U. emperature range of the shaft seal ring he FKM shaft seal is admissible for a temperature range from -25 C to +115 C. For applications below -25 C a NBR shaft seal is necessary (admissible temperature range -40 C to +90 C) (special design for sizes ). Bearing flushing For sizes bearing and housing flushing is possible through port U. Flushing flow (recommendation) ize q flush (L/min)

5 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 5/20 echnical Data able of values (theoretical values, without considering η mh and η v ; values rounded) ize Displacement V g cm 3 4,93 10,3 12,0 16,0 22,9 28, ,6 56, ,4 Max. speed 1 ) n max rpm Max. perm. speed with increased input pressure p abs n max perm. rpm Max. perm. output flow, at n max2 ) q V max L/min Max. power p = 350 bar P max kw 14,5 3 ) at q v max p = 400 bar P max kw orque constants K Nm/bar 0,076 0,164 0,19 0,25 0,36 0,445 0,509 0,725 0,89 1,0 1,27 Perm. torque p = 350 bar Nm 24,7 3 ) p = 400 bar Nm Case volume L 0,17 0,17 0,17 0,20 0,20 0,20 0,33 0,45 0,45 0,55 Moment of inertia about drive axis J kgm 2 0, ,0004 0,0004 0,0004 0,0012 0,0012 0,0012 0,0024 0,0042 0,0042 0,0072 Weight (approx.) m kg 2,5 5,4 5,4 5,4 9,5 9,5 9,5 13, ize Displacement V g cm , , Max. speed 1 ) n max rpm Max. perm. speed with increased input pressure p abs n max perm. rpm Max. perm. output flow, at n max2 ) q V max L/min Max. power p = 350 bar P max kw at q v max p = 400 bar P max kw orque constants K Nm/bar 1,43 1,70 1,99 2,55 2,86 3,18 3,99 5,65 7,96 11,3 15,9 Perm. torque p = 350 bar Nm p = 400 bar Nm Case volume L 0,55 0,8 0,8 1,1 1,1 2,5 3,5 7,8 Moment of inertia about drive axis J kgm 2 0,0072 0,0116 0,0116 0,0220 0,0220 0,0378 0,061 0,102 0,178 0,55 0,55 Weight (approx.) m kg ) he values shown are valid for an absolute pressure (p abs ) of 1 bar at the suction inlet and when operated on mineral oil. By increase of the input pressure (p abs > 1 bar) the rotational speeds can be increased to the max. admissible speeds (speed limits) (see diagram). 2 ) 3 % volumetric loss included 3 ) p = 315 bar Maximum permissible speed with increased inlet pressure p abs at suction port inlet pressure p abs in bar sizes sizes Calculation of size V g n η v Flow q V = in L/min 1000 V g p 1,59 V g p orque = = in Nm 20 π η mh 100 η mh Power P = 2 π n = n = q V p in kw η t 0 0,8 1,0 1,2 1,4 1,6 - max. perm. speed n max perm. (speed limit) - min. perm. pressure at port - admissible values for the drive shaft seal 1,8 2,0 speed n/n max V g = geometric displacement per rev. in cm 3 = torque in Nm p = pressure differential in bar n = speed in rpm η v = volumetric efficiency η mh = mech. -hyd. efficiency η t = overall efficiency

6 6/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 echnical Data Output drive Permissible axial and radial loads on drive shaft he values given are maximum values and do not apply to continuous operation ize a mm F q max N ±F ax max N ±F ax perm. /bar N/bar 1,5 3,0 3,0 3,0 5,2 5,2 5,2 7,0 8,7 8,7 10,6 ize a mm ,5 52,5 67,5 67,5 F q max N ) ) ) ) ) ±F ax max N +F ax max F ax max ±F ax perm. /bar N/bar 10,6 12,9 12,9 16,7 16,7 16,7 2 ) 2 ) 2 ) 2 ) 2 ) 1 ) Axial piston unit in stationary or in bypass operation, please contact us when appearing higher forces! 2 ) Please contact us! Code explanation a = distance of F q from shaft shoulder Fq he direction of the max. perm. axial force must be noted by F q max = max. perm. radial force at distance a sizes : (at intermittent operation) - F ax = increases bearing life a - ±F ax max = max. perm. axial force when stationary + F ax = reduces bearing life Fax or when axial piston unit is running at zero pressure (avoid if possible) + ±F ax perm. /bar= perm. axial force/bar working pressure Optimal force direction of F q (valid for sizes ) By means of appropriate force directions of F q the bearing load caused by inside rotary group forces can be reduced. An optimal life expectation of the bearing can be reached. ϕ opt = ϕ opt = ϕ opt = 70 ϕ opt = 70 A B A B clockwise rotation pressure at port B anti-clockwise rotation pressure at port A clockwise rotation pressure at port B

7 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 7/20 Ordering Code / tandard Program - ize 5 A2F Axial piston unit Bent axis design, fixed displacement A2F ize Displacement V g (cm 3 ) 5 Direction of rotation Viewed on shaft end clockwise R anti-clockwise L eries 6.0 Additional instructions in text form eals he fixed pump A2F 5 is equipped with NBR- (nitril-caoutchouc) seals in standard design. In case of need FKM- (fluor-caoutchouc) seals please indicate when ordering in clear text: "with FKM-seals" haft end Parallel shaft with key DIN 6885 apered shaft with spigot and spring washer DIN 6888 B C ervice line connections hreads at side, metric 7 = preferred program (preferred types see page 18) Unit Dimensions, ize 5 h8 8 17,5 74,5 58,5 Y R 6 70 Detail Y ø ±0,1 6,4 70 haft ends B Parallel shaft with key A4x4x20 DIN C 48,5 apered shaft with spigot and spring washer 3x5 DIN B, (A) ervice line ports M18x1,5 uction port M22x1,5 Drain port M10x1, both sides taper 1:10 p N = 210 bar p N = 315 bar

8 8/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 Unit Dimensions, izes 10, 12, 16 ø80 h6 18, R 48, ,5 53,5 5 23, , , ,5 R , , ,5 B(A) ervice line ports M22x1,5 uction port M33x2 1, 2 Drain port (1 port plugged) M12x1,5 R Air bleed (plugged) M8x1 haft ends izes 10, 12, 16 A plined shaft, DIN 5480 W 25x1,25x30x18x9g izes 10, 12 Z plined shaft, DIN 5480 W 20x1,25x30x14x9g izes 10, 12, 16 B Parallel shaft with key, A 8x7x32, DIN 6885 izes 10, 12 P Parallel shaft with key, A 6x6x32, DIN 6885 p N = 400 bar p N = 400 bar

9 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 9/20 Unit Dimensions, izes 23, 28, 32 23,2 60, R , ,2 ø100 h6 R 40 61,5 55, ,5 40, , M8; 15 deep M10; 17 deep B(A) ervice line ports AE 1/2" 420 bar (6000 psi) high pressure series uction port AE 3/4" 350 bar (5000 psi) standard series 1, 2 Drain port (1 port plugged) M16x1,5 R Air bleed (plugged) M10x1 haft ends izes 23, 28, 32 A plined shaft, DIN 5480 W 30x2x30x14x9g izes 23, 28 Z plined shaft, DIN 5480 W 25x1,25x30x18x9g izes 23, 28, 32 B Parallel shaft with key, A 8x7x40, DIN 6885 izes 23, 28 P Parallel shaft with key, A 8x7x40, DIN 6885 p N = 400 bar p N = 400 bar

10 10/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 Unit Dimensions, ize , R , ,2 ø125h6 R , , M10; 17 deep , , M10; 17 deep B(A) ervice line ports AE 3/4" 420 bar (6000 psi) high pressure series uction port AE 1" 350 bar (5000 psi) standard series 1, 2 Drain port (1 port plugged) M18x1,5 R Air bleed (plugged) M12x1,5 haft ends A plined shaft, DIN 5480 W 32x2x30x14x9g Z plined shaft, DIN 5480 W 30x2x30x14x9g P Parallel shaft with key, A 8x7x50, DIN 6885 p N = 400 bar p N = 400 bar

11 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 11/20 Unit Dimensions, izes 56, , ,5 R , ,2 ø125 h R , , M10; 17 deep , M10; 17 deep B(A) ervice line ports AE 3/4" 420 bar (6000 psi) high pressure series uction port AE 1" 350 bar (5000 psi) standard series 1, 2 Drain port (1 port plugged) M18x1,5 R Air bleed (plugged) M12x1,5 haft ends izes 56, 63 A plined shaft, DIN 5480 W 35x2x30x16x9g ize 56 Z plined shaft, DIN 5480 W 30x2x30x14x9g izes 56, 63 B Parallel shaft with key, A 10x8x50, DIN 6885 ize 56 P Parallel shaft with key, A 8x7x50, DIN 6885 p N = 400 bar

12 12/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 Unit Dimensions, izes 80, , ,5 R , ,2 ø140 h6 R 85, , , , M12; 17 deep , M10; 17 deep B(A) ervice line ports AE 1" 420 bar (6000 psi) high pressure series uction port AE 1 1/4" 280 bar (4000 psi) standard series 1, 2 Drain port (1 port plugged) M18x1,5 R Air bleed (plugged) M12x1,5 haft ends izes 80, 90 A plined shaft, DIN 5480 W 40x2x30x18x9g ize 80 Z plined shaft, DIN 5480 W 35x2x30x16x9g izes 80, 90 B Parallel shaft with key, A 12x8x56, DIN 6885 ize 80 P Parallel shaft with key, A 10x8x56, DIN 6885 p N = 400 bar p N = 400 bar

13 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 13/20 Unit Dimensions, izes 107, 125 Dimensions brackets for size , , R , ,7 ø160 h6 98 R ,7(57,2) (25) 31,8(27,8) M14; 19 deep (M12; 17 deep) , M12; 20 deep B(A) ervice line ports AE 1 1/4" (1") 420 bar (6000 psi) high pressure series uction port AE 1 1/2" 210 bar (3000 psi) standard series 1, 2 Drain port (1 port plugged) M18x1,5 R Air bleed (plugged) M14x1,5 haft ends izes 107, 125 A plined shaft, DIN 5480 W 45x2x30x21x9g ize 107 Z plined shaft, DIN 5480 W 40x2x30x18x9g izes 107, 125 B Parallel shaft with key, A 14x9x63, DIN 6885 ize 107 P Parallel shaft with key, A 12x8x63, DIN 6885 p N = 400 bar p N = 400 bar

14 14/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 Unit Dimensions, izes 160, 180 ø180 h6 37, R 95, ,5 12,5 1 77,5 66, , , M14; 19 deep R , , ,7 180 M12; 20 deep B(A) ervice line ports AE 1 1/4" 420 bar (6000 psi) high pressure series uction port AE 1 1/2" 210 bar (3000 psi) standard series 1, 2 Drain port (1 port plugged) M22x1,5 R Air bleed (plugged) M14x1,5 haft ends izes 160, 180 A plined shaft, DIN 5480 W 50x2x30x24x9g ize 160 Z plined shaft, DIN 5480 W 45x2x30x21x9g izes 160, 180 B Parallel shaft with key, A 14x9x70, DIN 6885 ize 160 P Parallel shaft with key, A 14x9x70, DIN 6885 p N = 400 bar p N = 400 bar

15 , ,7 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 15/20 Unit Dimensions, ize 200-0,029 ø , , , haft ends R 21 A plined shaft, DIN 5480 W 50x2x30x24x9g B Parallel shaft with key, A 14x9x70, DIN M14; 19 deep 69,9 108 B(A) ervice line ports AE 1 1/4" 420 bar (6000 psi) high pressure series uction port AE 3 1/2" 35 bar (500 psi) standard series Drain port (1 port plugged) M22x1,5 R Air bleed (plugged) M14x1,5 M16; 24 deep p N = 400 bar Unit Dimensions, ize U , ø224 h B(A) haft ends Z plined shaft, DIN 5480 W 50x2x30x24x9g 309 M14; 19 deep 329 P 32 66,7 Parallel shaft with key, A 14x9x80, DIN 6885 M16 M12; 17 deep 12 88,9 B(A) ervice line ports AE 1 1/4" high pressure series uction port AE 2 1/2" standard series Drain port (1 port plugged) M 22x1,5 U Port for bearing flushing (plugged) M 14x1,5

16 ,4 50, /20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 Unit Dimensions, ize ,5 U 320 M ,6 88,9 360 M B M ø280 h M16; 21 deep M12; 17 deep haft ends A plined shaft, DIN 5480 W 60x2x30x28x9g P Parallel shaft with key, A 18x11x100, DIN 6885 B(A) ervice line ports AE 1 1/2" high pressure series uction port AE 2 1/2" standard series Drain port (1 port plugged) M33x2 U Port for bearing flushing (plugged) M14x1,5 M A (B) Gauge port (working pressure) plugged M14x1,5 M Gauge port (suction pressure) plugged M14x1,5 Unit Dimensions, ize ,5 U 361,5 M ,6 106, M B M ø315 h , , M16; 24 deep M16; 24 deep haft ends Z plined shaft, DIN 5480 W 70x3x30x22x9g P Parallel shaft with key, A 20x12x100, DIN 6885 B(A) ervice line ports AE 1 1/2" high pressure series uction port AE 3" standard series Drain port (1 port plugged) M33x2 U Port for bearing flushing (plugged) M18x1,5 M A (B) Gauge port (working pressure) plugged M14x1,5 M Gauge port (suction pressure) plugged M14x1,5

17 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 17/20 Unit Dimensions, ize ,5 U 486 M ,5 130,2 ø400 h8 haft ends Z plined shaft, DIN 5480 W 90x3x30x28x9g P Parallel shaft with key, A 25x14x125, DIN ,8 M B M20; 30 deep M16; 24 deep B(A) ervice line ports AE 2" high pressure series uction port AE 4" standard series Drain port (1 port plugged) M42x2 U Port for bearing flushing (plugged) M18x1,5 M A (B) Gauge port (working pressure) plugged M14x1,5 M Gauge port (suction pressure) plugged M14x1,5 M 77,8 340 Unit Dimensions, ize , U 44,5 130,2 M M B M 0 h8 ø ,8 77,8 340 M20; 30 deep M16; 24 deep haft ends Z plined shaft, DIN 5480 W 90x3x30x28x9g P Parallel shaft with key, A 25x14x125, DIN 6885 B(A) ervice line ports AE 2" high pressure series uction port AE 4" standard series Drain port (1 port plugged) M42x2 U Port for bearing flushing (plugged) M18x1,5 M A (B) Gauge port (working pressure) plugged M14x1,5 M Gauge port (suction pressure) plugged M14x1,5

18 18/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 Preferred ypes ype Ident-No. A2F5.6.0B A2FO10/61R-PAB A2FO10/61R-PBB A2FO12/61R-PAB A2FO12/61R-PBB A2FO16/61R-PAB A2FO16/61R-PBB A2FO23/61R-PAB A2FO23/61R-PBB A2FO28/61R-PAB A2FO28/61R-PBB ype Ident-No. A2FO90/61R-PAB A2FO90/61R-PBB A2FO107/61R-PAB A2FO107/61R-PBB A2FO125/61R-PAB A2FO125/61R-PBB A2FO160/61R-PAB A2FO160/61R-PBB A2FO180/61R-PAB A2FO180/61R-PBB A2FO200/63R-PAB A2FO32/61R-PAB A2FO32/61R-PBB A2FO45/61R-PZB A2FO56/61R-PAB A2FO56/61R-PBB A2FO63/61R-PAB A2FO63/61R-PBB A2FO80/61R-PAB A2FO80/61R -PBB izes : izes : production Elchingen plant production Horb plant Please state type and ident-no. when ordering!

19 RE /09.00 A2FO Mobile Hydraulics Bosch Rexroth AG 19/20 Installation and Commissioning Guidelines General At start-up and during operation the pump housing has imperatively to be filled up with hydraulic fluid (filling of the case chamber). tartup has to be carried out at low speed and without load till the system is completely bleeded. At a longer standstill the case may discharge via operating line. At new start-up a sufficient filling of the housing has to be granted. he leakage oil in the housing has to be discharged to the tank via highest positioned case drain port. he min. suction pressure at port should not fall below 0,8 bar absolute. Installation position Optional Installation below tank level Pumps below min. oil level in the tank (standard) Fill up axial piston pump before start-up via highest positioned case drain port (note for the shaft on top installation position: fill until oil starts escaping from air bleed port R or U). Recommendation: Fill up suction lines Installation on top of tank level Pump on top of min. oil level in the tank Actions as installation below tank level Installation position 1 and 2: If the pump is left at standstill for a long period, the oil in the housing chamber may fully drain out through the operating lines (air entering via the shaft seal). Consequently, on restarting, the bearings will be insufficiently lubricated. You should therefore refill the axial piston unit via the highest positioned drain port before restarting (Installation position 2: air bleed via port R or U). Installation position 2 (shaft on top) In this installation position, the bearings will be insufficiently lubricated even if the housing chamber is only partially drained. o prevent oil draining via the drain port, insert a check valve in the drain line (opening pressure 0.5 bar). min. admissible presssure at port (min. suction pressure) Operate pump at low speed (igniton speed) till pump system is completely filled up Minimum immersion depth of the suction line or drain line in the tank: 200 mm (relative to the min. oil level in the tank) ,5 bar * * R(U) 2 R (U) 1 2

20 20/20 Bosch Rexroth AG Mobile Hydraulics A2FO RE /09.00 Bosch Rexroth AG Mobile Hydraulics Product egment Axial Piston Units Elchingen Plant Glockeraustrasse Elchingen, Germany elephone +49 (0) Facsimile +49 (0) info.brm-ak@boschrexroth.de Horb Plant An den Kelterwiesen Horb, Germany elephone +49 (0) Facsimile +49 (0) by Bosch Rexroth AG, Mobile Hydraulics, Elchingen Alle Rechte vorbehalten. Kein eil des Werkes darf in irgendeiner Form ohne vorherige schriftliche Zustimmung der Bosch Rexroth AG reproduziert oder unter Verwendung elektronischer ysteme gespeichert, verarbeitet, vervielfältigt oder verbreitet werden. Zuwiderhandlungen verpflichten zu chadensersatz. Die angegebenen Daten dienen allein der Produktbeschreibung. Eine Aussage über eine bestimmte Beschaffenheit oder eine Eignung für einen bestimmten Einsatzzweck kann aus unseren Angaben nicht abgeleitet werden. Die Angaben entbinden den Verwender nicht von eigenen Beurteilungen und Prüfungen. Es ist zu beachten, dass unsere Produkte einem natürlichen Verschleiß- und Alterungsprozess unterliegen.