Martin Sprocket & Gear Screw Conveyor Safety - Manual (Page 18)

CEMA STANDARD NO: 352-2012
SECTION F – TROUBLESHOOTING GUIDE - Continued
14.
PROBLEM CAUSE REMEDY
MOTOR UNDERSIZED
CONSULT CEMA 350 BOOK TO DETERMINE PROPER
HORSEPOWER REQUIREMENTS.
UPSET LOADING CONDITION
EMPTY TROUGH, CONTROL FEED AND OPERATE
UNDER DESIGN SPECIFICATIONS.
BEARING CONTAMINATION
UPGRADE OR REPLACE SEAL. CHANGE TO
OUTBOARD BEARING.
INSUFFICIENT LUBRICATION
LUBRICATE IN ACCORDANCE WITH MAINTENANCE
SECTION OF THIS DOCUMENT.
IMPROPER SHAFT RUNOUT
CHECK SCREW STRAIGHTNESS AND REPLACE AS
NECESSARY.
EXCESSIVE TORQUE
CONSULT CEMA 350 BOOK TO DETERMINE PROPER
TORQUE RATING.
INCORRECT ALIGNMENT
REALIGN TROUGH ASSEMBLY AND HANGERS IN
ACCORDANCE WITH ASSEMBLY SECTION OF THIS
DOCUMENT.
EXCESSIVE SHAFT WEAR REPLACE COUPLING SHAFT.
7. TROUGH END BEARING FAILURE
8. COUPLING SHAFT BREAKAGE
6. MOTOR OVERLOAD