Installation On A Gearbox; Installation With Cardan Shaft - Bosch REXROTH A4 Series Instruction Manual

46/104 Installation
For attachment via gear
wheel or helically-toothed
shaft
Bosch Rexroth AG, A4... with HS5E pilot control valve/Series 3x, RE 92076-01-B/10.2017
The axial piston unit must not be tightened down until the coupling has been
correctly installed.
6. Fasten the axial piston unit at the installation location.
7. Align the drive shaft of the axial piston unit and the output shaft of the drive
motor so that there is no angular deviation.
8. Make sure that no impermissible axial and radial forces act on the drive shaft.
9.
For bell housing installation, check the coupling axial play through the bell
window according to the manufacturer's specifications.
10. Details on the required tools and tightening torques for the mounting bolts are
available from the machine/system manufacturer.
11. When using flexible couplings, check that the drive is free of resonance after
completing the installation.

7.4.5 Installation on a gearbox

The following describes how to install the axial piston unit on a gearbox.
After installing on a gearbox, the axial piston unit is covered and is difficult to access:
▶ Therefore, before installing, make sure that the spigot diameter centers the axial
piston unit (observe tolerances) and that no impermissible axial or radial forces
act on the drive shaft of the axial piston unit (installation length).
▶ Protect the drive shaft against frictional corrosion by providing permanent
lubrication.
▶ Fasten the axial piston unit at the installation location.
No gearing forces higher than the permissible axial and radial forces are to act on
the shaft, if necessary the gear wheel must be supported separately at the gearbox
output.

7.4.6 Installation with cardan shaft

How to connect the axial piston unit via a cardan shaft on a drive motor is described
in detail in the following.
notice! Damage to the axial piston unit and leaks at the shaft seal!
Improperly installed cardan shafts generate unbalances. This results in vibrations
and impermissible forces on the drive shaft.
▶ Observe the cardan shaft manufacturer's assembly instructions.
1. Position the axial piston unit close to the specified installation location. Allow
enough space for the cardan shaft to fit through on both sides.
2. Position the cardan shaft on the output shaft of the drive motor.
3.
Push the axial piston unit to the cardan shaft and position the cardan shaft on the
drive shaft of the axial piston unit.
4. Bring the axial piston unit to the installation position and secure. If necessary,
details on the required tools and tightening torques for the mounting bolts can be
obtained from the system manufacturer.