Bosch Rexroth A15VSO User Manual

Commissioning 45/60
RE 92801-01-B/11.2018, A15VSO/A15VLO Series 11, BoschRexrothAG
8.1.2 Testing the hydraulic fluid supply
The axial piston unit should always have asufficient supply ofhydraulic fluid.
For this reason, the supply ofhydraulic fluid must beensured atthestart
ofthecommissioning process.
When you test the hydraulic fluid supply, constantly monitor noise development and
check the hydraulic fluid level inthe reservoir. Ifthe axial piston unit becomes louder
(cavitation) orthedrain fluid isdischarged with bubbles, this isanindication that
the axial piston unit isnot being sufficiently supplied with hydraulic fluid.
For information ontroubleshooting, seechapter14 "Troubleshooting" onpage52.
To test the hydraulic fluid supply:
1. Allow the drive motor torun atthelowest rotational speed. The axial piston unit
should beoperated without load. Pay attention toleaks and noises.
2. Check the axial piston unit's drain line during the test. The drain fluid should
bewithout bubbles.
3. Increase the load and check whether the working pressure rises asexpected.
4. Perform aleak test toensure the hydraulic system issealed and can withstand
the max. pressure.
5. Check the suction pressure atportS oftheaxial piston pump atnominal speed
and max. swivel angle. Refer todatasheet92801 for the permissible value.
6. At max. working pressure, check the case pressure atport T
1
, T
2
or T
3
.
Refertodatasheet92801 for the permissible value.
8.1.3 Performing afunctional test
WARNING
Improperly connected axial piston unit!
Mixing up the ports will cause malfunctions (e.g.lift instead oflower) and could
endanger personnel and equipment!
▶ Before the functional test, check whether the piping specified inthe hydraulic
circuit diagram has been installed.
Once you have tested the hydraulic fluid supply, perform afunctional test
ofthemachine/system. The functional test should beperformed according tothe
instructions ofthemachine/system manufacturer.
The axial piston unit istested for functional capability and performance before
delivery according tothe technical data. During commissioning, make sure the axial
piston unit was installed properly inthe machine/system.
▶ After starting the drive motor, check inparticular the specified pressures,
e.g.working pressure and case pressure.
▶ Perform aleak test without and with load prior tonormal operation.
▶ If necessary, disconnect the pressure gauge and plug the ports with the specified
threaded plugs.

Bosch Rexroth A15VSO Specifications

General

Brand	Bosch
Model	Rexroth A15VSO
Category	Water Pump
Language	English