Harrington Hoists and Cranes AHM Hoist - Manual (Page 44)

44
Table 8-1 Troubleshooting Guide
Symptom Cause Remedy
Hoist continues running after
pendant or cord is released
Main Spool sticking
Inject approx. 20 drops of oil into inlet
port to lubricate the main spool. If
spool still sticks, repair at service
facility.
Valve Spring broken Repair at service facility
Main Spool leaking Repair at service facility
Valve in Pendant Valve CP stuck Repair at service facility
Hoist drifts excessively when
hoist is stopped
Brake is not holding. Repair brake at service facility.
Motor Vanes leaking.
Replace motor Vanes at service
facility.
Hoist moving in wrong
direction Mis-connected Pendant Hose
assembly.
Reconnect Pendant Hose correctly.