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Axial piston units
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Installation
Bosch Rexroth AG, RE 90300-B/2021-01-19
To connect the axial piston unit to the hydraulic system:
1.
Remove the protective plugs and/or threaded plugs from the ports where the
connections should be made according to the hydraulic circuit diagram.
2.
Make sure the sealing surfaces of the hydraulic ports and functional surfaces are
not damaged.
3.
Use only clean hydraulic lines or flush them before installation.
(Observe chapter 7.5 "Performing flushing cycle" on page 41 when you flush
the hydraulic system.)
4.
Connect the lines in accordance with the installation drawing and the machine
or system circuit diagram. Check that all ports are connected or plugged with
threaded plugs. With inside-reservoir installation, the housing of the axial
piston unit must be filled before fitting the lines and filling the reservoir with
hydraulic fluid.
5.
Properly tighten the fittings (observe tightening torques!). Mark all properly
tightened fittings, e.g. with a permanent marker.
6.
Check all pipes and hose lines and every combination of connecting pieces,
couplings or connecting points with hoses or pipes to ensure they are in safe
working condition.
7.4.9 Electrically connecting the axial piston unit
NOTICE
Short circuit due to penetrating hydraulic fluid!
Fluid can penetrate the product and cause a short circuit!
▶ Do not install axial piston units with electric components (e.g. electric controls,
sensors) in a reservoir below the fluid level (inside-reservoir installation) unless
they have been explicitly released for use under hydraulic fluid, e.g. HS5M.
The machine/system manufacturer is responsible for electric control layout.
Electrically controlled axial piston units must be connected in accordance with the
electrical circuit diagram for the machine/system.
For axial piston units with electrical control and/or mounted sensors, please comply
with the details given in the product-specific data sheet, e.g.:
• Permissible voltage range
• Permissible current
• Correct pin assignment
• Recommended electrical control units
Exact details on the connector, type of protection and matching mating connector
can also be found in the product-specific data sheet. The mating connector is not
included in the scope of delivery.
1.
Switch off the power supply to the relevant machine/system component.
2.
Electrically connect the axial piston unit (12 or 24 V). Before establishing the
connection, check whether the connector protective covers have been removed
and the connector and all seals are intact.
Procedure
