Installation 33/60
RE 91616-01-B/10.2014, A6VE Series 65 and 71,
Bosch Rexroth AG
Observe the following notes when routing the pressure and drain lines.
•
Lines and hoses must be installed without pre-charge pressure, so that no further
mechanical forces are applied during operation that will reduce the service life of
the axial piston unit and, if applicable, the entire machine/system.
•
Use suitable seals as sealing material.
•
Pressure line
– For the pressure lines, use only pipes, hoses and connecting elements rated
for the operating pressure range specified in data sheets 91615 and 91616
(see Table 13, Table 14 and Table 15).
•
Drain line
– Always route the drain lines so that the housing is constantly filled with hydraulic
fluid and to ensure that no air gets through the shaft seal even during extended
standstill periods.
– In no operating condition may the case internal pressure exceed the maximum
values specified for the axial piston unit in the data sheet.
– The drain line joint in the reservoir must always be below the minimum fluid level
under all conditions (see chapter 7.3 “Installation position” on page 27).
•
If the axial piston unit is equipped with installed screw fittings, these must not be
unscrewed. Screw the threaded plug of the fitting directly into the installed screw
fitting.
Axial piston units are employed in regions using the metric measuring system, in
regions using the Anglo-American (imperial) measuring system and in regions using
the Japanese measuring system (JIS –
J
apan
I
ndustrial
S
tandard). Moreover, various
kinds of seal are used.
The system of units, the kind of seal and the size of female thread and threaded
plugs (e.g., threaded plug) must all match.
Due to the limited options for visually detecting differences, there is a risk of mix-ups.
wARnInG!
Leaking or popped-out threaded plugs!
If a threaded plug which is of a different measurement system, kind of seal and size
with respect to the female thread is pressurized, the threaded plug may loosen itself
or even be ejected from the hole in a projectile-like manner. This can result in serious
injury and damage to equipment. Hydraulic fluid can be discharged from this leakage
point.
▶
Use the drawings (installation drawing) to determine the required threaded plug
for each fitting.
▶
Make certain that there are no mix-ups when installing fittings, mounting bolts
and threaded plugs.
▶
For all threaded holes, use a threaded plug from the same system of units and of
the correct size.
notes on routing the lines
Risk of mix-ups with
threaded connections
