44/104 Installation
Bosch Rexroth AG, A4... with HS5E pilot control valve/Series 3x, RE 92076-01-B/10.2017
7.4 Installing the axial piston unit
7.4.1 Preparation
1. Compare the material number and designation (type code) with the details in
the order confirmation.
If the material number for the axial piston unit does not match the one in the
order confirmation, contact Bosch Rexroth Service for clarification, see
Chapter10.5 “Spare parts” on page81.
2. Before installing, completely empty 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 shaft of the machine/system.
The direction of rotation as specified on the name plate determines the direction of
rotation of the axial piston unit as viewed on the drive shaft, see Chapter5.10 “Product
identification” on page35.
7.4.2 Dimensions
The installation drawing contains the dimensions for all connections and ports on
the axial piston unit. 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 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
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