Martin Sprocket & Gear Drag Conveyor Safety - Manual (Page 9)

Problem Cause / Remedy Chart
5
PROBLEM CAUSE REMEDY
PREMATURE TROUGH FAILURE A) Gauge too light A) Increase thickness. Consult
catalog materials table /
component series for
recommendation.
B) Worn flights B) Replace flights
C) Excessive chain speed C) Check speed
ACCELERATED FLIGHT WEAR A) Excessive heat A) Change flight material.
UHMW limited to 175ºF
B) Speed too high B) Slow drag down. Consult
catalog engineering section to
determine proper speed.
CHAIN BREAKAGE A) Worn chain A) Change chain if worn
B) Take-up loose B) Adjust take-up
DRIVE SHAFT BREAKAGE A) Excessive torque A) Recalculate HP requirements
B) Insufficient torque capacity B) Increase torque capacity
C) Obstruction in conveyor C) Check sprocket alignment
MOTOR/HEATERS OVERLOAD A) Amp demand excessive A) 1. Recheck horsepower
for motor calculations
2. Check material
characterstics
3. Check capacity.
Assure regulated feed.
INLET TROUGH END A) Material getting into bearing A) Add or upgrade seal to keep
BEARING FAILURE material out of bearing.
Change to outboard bearing.
B) Insufficient lubrication B) Lubricate properly
DISCHARGE TROUGH END A) Material getting into bearing A) 1. Add or upgrade seal.
BEARING FAILURE 2. Change to outboard bearing.