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Installation
Bosch Rexroth Corporation
, A21VG Series 10, RE 93223-01-B/09.2020
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Torsional vibrations and speed variations may cause leakages on the shaft seal
and increased rotary angle accelerations of the rotary group of the axial piston
unit. At risk are diesel drives with a small number of cylinders and low flywheel
mass and toothed belt or V-belt drives. Belts can lose a large part of its tension
after just a short time.
An automatic clamping device can lessen the speed variations and vibrations and
thus avoid consequential damage.
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Always use an automatic clamping device when using toothed belts or V-belts to
transfer the input or output drive.
•
On the input or output drive of an axial piston unit, a cardan shaft may cause
vibrations and impermissible rotary angle accelerations. Depending on the
frequency and temperature, they may result in leakage on the shaft seal and
damage to the rotary group.
•
For combinations of multiple units, make sure that the respective case pressure
in each unit is not exceeded. In the event of differential pressures at the drain
ports of the units, the shared drain line must be changed so that the minimum
permissible case pressure of all connected units is not exceeded in any situation.
If this is not possible, separate drain lines must be laid if necessary.
How to install the axial piston unit depends on the connecting elements to the
drive side. The following descriptions explain the installation of the axial piston
unit:
•
with a coupling
•
on a gearbox
