Dimensions; General Instructions - Bosch rexroth A4VSH Series Instruction Manual

34/64 A4VSH series 1x and 30 | Assembly
Bosch Rexroth AG, RE 92110-01-B/2022-03-22
If the material number for the axial piston unit does not match the one in
the order confirmation, contact your local contact person for clarification.
You can find their contact information at
https://addresses.boschrexroth.com
3� Before installing, completely drain the axial piston unit to prevent mixing with
the hydraulic fluid used in the machine/system.
4� 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 drive motor.
L
W R
Fig� 10: Direction of rotation
1)
W Bi-directional (can rotate counter-clockwise and clockwise)
L Counter-clockwise
R Clockwise
In some cases, no alternating direction of rotation is possible. Please note separate
1)
data sheets for controls and data sheet 92110, see Table 1 "Required and supplementary
documentation" on page 5.
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 5.3 "Product identification" on page 22. For information on
the direction of rotation of the drive motor, please refer to the drive motor
manufacturer's instruction manual.
7�4�2 Dimensions
For standard versions, the data sheet 92110 contains all required installation
dimensions as well as the position and dimensions of the ports. 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 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.