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A4... with HS5E(V)(L) control system Series 1x and 30 | Installation
Bosch Rexroth AG, RE 92076-01-B/2021-04-22
2. Before installing, completely drain the axial piston unit to prevent mixing with
the hydraulic fluid used in the machine/system.
L
R
Fig. 14: Direction of rotation
L
Counter-clockwise
R
Clockwise
3. Check the permissible direction of rotation of the axial piston unit (on the name
plate) and make sure that this corresponds to the direction of rotation of the
output drive/drive shaft of the machine/system.
The direction of rotation as indicated on the name plate determines the direction
of rotation of the axial piston unit as viewed on the drive shaft; see chapter 5.10
"Product identification" on page 37.
7.4.2 Dimensions
For standard versions, the data sheet contains all required installation dimensions as
well as the dimensions of the ports and circuit diagrams.
If necessary, an installation drawing can be requested.
Also observe the manuals provided by the manufacturers of the other hydraulic
components when selecting the required tools.
7.4.3 General instructions
Follow these general notices when installing the axial piston unit:
• Note that certain installation positions will affect the control system. Gravity, dead
weight and case pressure can cause minor characteristic shifts and changes in
response time.
• Torsional vibrations and speed variations may cause leaks in the shaft seal and
increased rotary angular acceleration 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 much of their pre-charge pressure after
just a short operating time.
An automatic clamping device can lessen the speed variations and vibrations, and
thus avoid subsequential damage.
– When using drives with toothed belts or V-belts, always use an automatic
clamping device.
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