Check Cause Corrective action
8.
Control input signal Improper control input signal causes motor to stay
at minimum displacement.
Correct control input signal.
9.
Threshold setting Improper threshold setting causes improper motor
displacement for torque required.
Check and adjust threshold setting.
10.
Internal leakage Excess internal leakage causes charge pressure to
decay, reducing output torque.
Install loop flushing defeat option and monitor case
flow. If case flow is excessive, motor may require major
repair. Contact your Danfoss Service Provider.
Service Manual
Series 51 and 51-1 Motors
Troubleshooting
©
Danfoss | March 2016 11008567 | AX00000013en-US0202 | 31