REXROTH A6VE Series 71 User Manual

54/60 Troubleshooting
Bosch Rexroth AG, A6VE Series 65 and 71, RE 91616-01-B/10.2014
Table 18: Axial piston unit malfunction table
Malfunction Possible cause Remedy
Rotational speed or torque
cannot be reached
Insufficient flow at hydraulic pump. Check function of the hydraulic pump.
Minimum or maximum displacement set
incorrectly.
Contact Bosch Rexroth Service.
Control of the control device defective Check control (machine/system manufacturer)
Insufficient pilot pressure or control pressure. Check pilot pressure or control pressure
Contact Bosch Rexroth Service.
Malfunction of the control device or controller
of the axial piston motor.
Contact Bosch Rexroth Service.
Hydraulic fluid not in optimum viscosity range. Machine/system manufacturer:
Check temperature range and use suitable
hydraulic fluid
Wear or mechanical damage to the axial piston
motor.
Replace axial piston units
Contact Bosch Rexroth Service.
Wear or mechanical damage to the axial piston
pump.
Replace hydraulic pump
Contact Bosch Rexroth Service.
Wrong direction of rotation. Check function of the hydraulic pump.
Machine/system manufacturer:
Check correct direction of rotation,
see chapter 7.4.1 “Preparation” on page 29
Excessive temperature of
hydraulic fluid and case
Excessive inlet temperature at the axial piston
unit.
Machine/system manufacturer: Inspect system,
e.g malfunction of the cooler, insufficient
hydraulic fluid in the reservoir.
Wrong setting or malfunction of the pressure
relief and pressure control valves (e.g. high-
pressure relief valve, pressure cut-off, pressure
controller)
Optimize the adjustment of the pressure relief
and pressure control valves of the axial piston
unit and the pressure safeguarding in the
hydraulic system
Contact Bosch Rexroth Service.
Contact machine/system manufacturer.
Output speed too high. Contact machine/system manufacturer.
Flushing flow of the flushing valve too low Contact Bosch Rexroth Service.
Wear of axial piston unit. Exchange axial piston unit, contact
BoschRexrothService.

REXROTH A6VE Series 71 Specifications

General

Brand	REXROTH
Model	A6VE Series 71
Category	Engine
Language	English