Troubleshooting For Bolster - KAMAZ 5490 Operation Manual

Cause
Coupling pivot of semi-trailer is disposed
too high
Train is on rough ground or bolster is un-
der action of stretching forces
Poor maintenance of bolster

TROUBLESHOOTING FOR BOLSTER

Bolster fails to close
Install the support plate on one level or 50 mm below
Bolster fails to open
Release the bolster locking means
Bolster is not ready for coupling
Eliminate dirt from the locking means, grease it again
7-51
Remedy