Harrington Hoists TCR User Manual

Page of 44
 
39
 
Table 8-1
  Troubleshooting Guide (continued) 
Symptom Cause 
Remedy 
Hoist moving in wrong 
direction (pendant control) 
Pendant control hoses are 
terminated to incorrect ports on hoist 
body. 
Connect the control tubes in 
accordance with 
Section 7.4
Hoist is overloaded. 
Reduce load to hoist rated capacity. 
Faulty pendant control or control 
hose(s) 
Repair or replace pendant control or 
control hose(s) 
Hoist lowers but will not lift 
Lack of air pressure or partial loss of 
or leakage in air supply. 
Repair or adjust air supply or filters. 
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. 
Hoist continues running after 
pendant or cord is released 
Valve in Pendant Handle stuck 
Repair at service facility 
Hoist drifts excessively when 
hoist is stopped 
Brake is not holding. 
Repair brake at service facility.