Above-Reservoir Installation - Bosch rexroth 1 Series Instruction Manual

34/68 Installation
Inside-reservoir
installation A20VO
Size 520
Bosch Rexroth AG, A20V(L)O Series 1, RE 93100-01-B/2019-09-10
13
Fig. 14: Inside-reservoir installation A20VO size 520 with installation position 13
Air bleed port
R(L) ,
1
R(L)
2
Drain port
T , T
1 2
S Suction port
Table 13: Inside-reservoir installation
Installation position Air bleed
13 (drive shaft horizontal) via the highest open port R(L)

7.3.3 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
permissible suction height h
Because complete air bleeding and filling are not possible in installation
positions 16 and 17, the axial piston unit should be air bled and filled in a
horizontal position before installation.
To prevent the axial piston unit from draining, a height difference h
25 mm at port F is required in installation position 14 and 15.
R(L)
1
R(L)
2
T
2
T S SB
1
h Minimum required immersion depth
t min
(200 mm)
h Minimum required distance
min
to reservoir bottom (100 mm)
SB Baffle (baffle plate)
1
is derived from the total pressure loss.
S
h
t min
h
min
Filling
automatically via the open
port R(L) and S, by position
1
below the hydraulic fluid level
= 800 mm. The
S max
of at least
ES min