Bosch 70 Series - 7.4 Installing the Axial Piston Unit

28/52 Installation
Bosch Rexroth AG, A2FM/A2FE Series 70, RE 91071-01-B/03.2015
7.4 Installing the axial piston unit
7.4.1 Preparation
1. Check the specifications on the name plate of the axial piston unit to see if the
axial piston unit is correct.
2. 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 correspond to the one in
the order confirmation, contact Bosch Rexroth Service for clarification,
see Chapter10.5 “Spare parts” on page43.
3. Before installing, completely empty 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
intended motor function.
L
R
W
Fig. 8: Direction of rotation
W
Bi-directional (counter-clockwise and clockwise rotation permissible)
L
Counter-clockwise
R
Clockwise
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 Chapter5.3
“Product identification“ 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 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:
• If a shared drain line is used for several units, make sure that the pressure in each
case is not exceeded. The shared drain line must be dimensioned to ensure that
the maximum permissible case pressure of all connected units is not exceeded in
any operating conditions, specifically on cold start. If this is not possible, separate
drain lines may have to be laid.