F
AULTS
,
CAUSES AND REMEDIES
EXCESSIVE RUNNING ON DURING BRAKING
Possible cause
Remedy
Brake disc and/ or brake piston worn Replace brake disc and/or brake piston.
LOUD NOISE AT THE CHAIN SPROCKET OR GEARBOX
Possible cause
Remedy
Chain dry
Lubricate the chain. Check wear.
Chain sprocket worn
Replace chain sprocket, check chain guide and replace if necessary.
Chain worn
Replace chain with a new JDN chain.
Wrong chain drawn in
Identify chain and replace with JDN chain if necessary.
Defective gearbox / bearing
Have product repaired.
LIFTING AND LOWERING SPEED DECLINES OR ENGINE STOPS WITH HIGHER
LIFTING HEIGHTS
Possible cause
Remedy
Brake piston setting too tight
Correct adjustment of brake piston. At high ambient temperatures,
perform adjustment with the device warmed up accordingly.
Brake opening pressure too low
Check compressed air supply
grinding brake
Undersized compressor
Check compressed air supply
Page
62
of 64
Doc.-No.: VA049318-10-OM-EN-0319-64-2
