Bosch rexroth A21VG 10 Series - Installing the axial piston unit; Preparation; Dimensions; General instructions

Installation 29/56
RE 93223-01-B/09.2020, A21VG Series 10, Bosch Rexroth Corporation
7.4 Installing the axial piston unit
7.4.1 Preparation
1. Compare the material number and designation (ordering code) with the details
in the order conrmation.
If the material number for the axial piston unit does not correspond to the one
in the order conrmation, contact Bosch Rexroth Service for clarication, see
chapter 10.5 “Spare parts” on page45.
2. Before installing, completely empty the axial piston unit to prevent any mixing
with the hydraulic uid used in the machine/system.
L
R
Fig. 8: Direction of rotation
L
Counter-clockwise
R
Clockwise
3. Check the 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 specied on the name plate determines the
direction of rotation of the axial piston unit as viewed on the drive shaft, see
chapter 5.3 “Product identication” on page 20.
7.4.2 Dimensions
The installation drawing contains the dimensions for all connections and ports on
the axial piston unit. Also observe the instructions provided by the manufacturers
of the other hydraulic components when selecting the required tools.
7.4.3 General instructions
Please keep in mind the following general instructions for installation of 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 shifts in control
characteristics and changes in response time.