Installation 31/60
RE 92770-01-B/11.2016, A10VGT Series 11,
Bosch Rexroth AG
7.4.3 General instructions
Follow these general instructions when installing the axial piston unit:
•
Note that you can expect certain installation positions to affect the control device.
Gravity, dead weight and case pressure can cause minor characteristic shifts and
changes in response time.
•
Torsional vibrations and speed variations may cause leakages on the shaft seal
and increased rotary angular 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 pre-charge
pressure after just a short operating time.
An automatic clamping device can lessen the speed variations and vibrations and
thus avoid resulting damage.
– When using toothed belts or v-belts to transfer the drive, always use an automatic
clamping device.
•
On the drive of an axial piston unit, a cardan shaft may cause vibrations and
impermissible rotary angular accelerations. Depending on the frequency and
temperature, they may result in leakage on the shaft seal and damage to the
rotary group.
•
If a shared drain line is used for several units, make sure that the respective case
pressure is not exceeded. The shared drain line must be dimensioned to ensure
that the maximum permissible case pressure of all connected units is not exceeded
in any operational conditions, particularly at cold start. If this is not possible,
separate drain line must be laid, if necessary.
The type of installation to be used for 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
•
to a cardan shaft
7.4.4 Installation with coupling
How to install the axial piston unit with a coupling is described in below:
nOTICE!
Danger from improper handling!
Product can get damaged!
▶
Do not install the coupling hub onto the drive shaft of the axial piston unit by
striking it.
1.
Install the specified coupling half onto the drive shaft of the axial piston unit
according to the instructions of the coupling manufacturer.
