Harrington Hoists TCR User Manual

 

38

 

8.0 Troubleshooting 

 

Before performing ANY maintenance on the equipment, de-energize the supply of compressed air to the 
equipment, and lock and tag the supply device in the de-energized position.  Refer to ANSI Z244.1, “Personnel 
Protection - Lockout/Tagout of Energy Sources.” 

Only Trained and competent personnel should inspect and repair this equipment. 

 

Lack of air pressure or loss of air 
supply. 

Repair or adjust air supply or filters. 

Seizure of Main Spool, Brake Spool, 
or Air Motor. 

Repair at service facility. 

Seizure of brake or brake 
mechanism fails to release. 

Repair at service facility. 

Bending or crimping of pendant 
control hose(s) 

Correct or repair the bend or crimp in 
control hose(s) 

Does not operate 

Hoist is overloaded. 

Reduce the load to the rated capacity 
of hoist. 

Low air pressure at hoist inlet port. 

Repair or adjust air supply or filters.  
Check for air line obstruction. 

Air supply hose or piping is too small. 

Replace hose or piping sizes with 
recommended sizes in 

Section 3.0

. 

Malfunction of brake. 

Repair at service facility. 

Bending or crimping of pendant 
control hose(s) 

Correct or repair the bend or crimp in 
control hose(s) 

Lack of sufficient oil in air supply to 
hoist 

Increase oil in air supply to hoist in 
accordance with requirements in 

Section 3.0

. 

Exhaust Silencer clogged 

Clean or replace. 

Air flow capacity of compressed air 
system insufficient 

Increase air flow capacity of 
compressed air system to 
requirements in 

Section 2.0

. 

Air motor vanes or bearings worn 

Repair at service facility. 

Lifting speed is slow 

Air supply to hoist contains dirt or 
debris 

Filter the air supply to the hoist in 
accordance with the requirements in 

Section 3.0

. 

Lack of air pressure or loss of air 
supply. 

Repair or adjust air supply or filters. 

Unable to lift rated load 

Improper adjustment of load limiter. 

Adjust Load Limiter.  See 

Section 7.1

.