Troubleshooting 95/104
RE 92076-01-B/10.2017, A4... with HS5E pilot control valve/Series 3x, Bosch Rexroth AG
Table 27: Malfunction table of HS5E control systems
Malfunction Possible cause Remedy
Hydraulic fluid temperature
too high
Too high inlet temperature at control system inspect system, for example, malfunction in
the cooler, insufficient hydraulic fluid in the
reservoir
DB in preload valve opens
Diagnosis: Pipe to the reservoir heats up
Pressure must be lower than the cracking
pressure of the preload valve. Keep overshoots
and pressure pulsation to a minimum
Malfunction of the pressure control valves
(e.g. high-pressure relief valve, pressure cut-off,
pressure controller)
Contact Rexroth Service
Control system worn out Replace the control system, contact Rexroth
Service
Setting of swivel angle sensor
causes problems
For more information on this topic, refer to
chapter8.1.5.4
The connection to IndraWorks has
failed; the row on the display is
red.
Input error Use 192.168.0.1 as the correct IP address
14.3.1 Swivel angle measurement check
The settings for swivel angle measurement are made at the factory. After you have
replaced the swivel angle sensor, you must carry out calibration; see Chapter8.1.8 “Cali-
brating the HS5E control system”on page75. Bosch Rexroth recommend repeating
calibration or checking it at certain intervals.
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