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Technical data
p c bar
16
Valid for 1 bar / 14.5 psi case pressure
14
With increased case pressure, the charge
pressure must be increased accordingly.
12
10
8
6
4
2
0
0
10
Fig. 2: Charge pressure
Bosch Rexroth Mellansel AB, Intallation and maintenance manual, Hägglunds VI, RE 15310-WA/10.2015
2 Technical data
2.1 Recommended charge pressure
The motor must be connected to the hyd raulic system so that it receives sufficient
charge pressure at the low pressure connection. This applies to all types of
installations.
In hanging load applications, charge pressure at motors connection must be
according to graph below under all conditions.
Two alternatives of motor duty must be considered:
1. The graph is for motors, used in half displacement connection ("high speed
range") or operating as a braking unit (during hydrostatic braking).
2. When motors are operating exclusively in driving mode, the charge pressure is
30% of the graph values but may not be below 2 bar/29 psi.
44-, 64- and 84-series:
Max case pressure is 3 bar/43.5 psi (for 1% of the operation time evenly di vided,
pressure peaks of max 5 se conds up to 8 bar/116 psi are allowed).
The max permitted case pressure at stand still is 8 bar/116 psi.
For motors fitted with silicon-rubber seals these pressures must be reduced by 50%.
20
30
40
WARNING
64-16300
64-13500
64-11100
50
60
70
44-06800
44-09200
44-04700
80
90
100
p c psi
200
150
100
50
n r/min
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