poclain hydraulics MS 83 - Hydraulic Motor Troubleshooting; Motor Noise Diagnosis

POCLAIN HYDRAULICS
5 DOC-REPAIR-MS25-MS125-FR-EN 800378131M
Trouble shooting
The motor is noisy
Noisy motor
Motor is noisy
without load
YES
Regular rumbling :
worn bearing support
Vibrations : mountings
and/or hydraulic piping
become loose
NO
YES
Replace the
bearing support
YES
Tighten to
torque
Motor is noisy
under load
YES
Clattering : boost
pressure too low
Cavitation: excessive
internal leaks
NO
YES
Set the counter-
pressure valve
YES
Replace the
cylinders block and
valving assembly
NO