Bosch rexroth A2FO Series - Above-Reservoir Installation

RE91405-01-B/2021-05-21, BoschRexrothAG
Installation | A2FO series 70 27/52
7�3�2 Above-reservoir installation
Above-reservoir installation means that the axial piston unit is installed above
theminimum fluid level of the reservoir.
Observe the maximum permissible suction height h
S max
= 800 mm. The permissible
suction height h
S
is derived from the total pressure loss.
Recommendation for installation position 8 (drive shaft up): Acheck valve in the
drain line (cracking pressure 0.5bar) can prevent the housing area from draining.
5 6 7 8
S
h
t min
h
min
SB
h
S max
T
1
F
T
2
S
h
t min
h
min
SB
h
S max
F
S
h
t min
h
min
SB
h
S max
T
1
F
0.5 bar
S
h
t min
h
min
SB
h
S max
F
T
2
R
Fig� 8: Above-reservoir installation A2FO with installation positions 5-8
T
1
, T
2
Drain port
R Air bleed port
F Filling/air bleeding
S Suction port
h
t min
Minimum required immersion depth
(200 mm)
h
min
Minimum required distance to
reservoir bottom (100mm)
h
S max
Maximum permissible suction
height(800mm)
SB Baffle (baffle plate)
Table 9: Above-reservoir installation
Installation position Air bleed Filling
5 (drive shaft horizontal) F T
1
(F)
6 (drive shaft horizontal) F T
2
(F)
7 (drive shaft vertically down) F T
1
(F)
8 (drive shaft vertically up) R T
2
(F)