TM 5-3895-374-24-2
Problem Cause/Remedy Chart
PROBLEM
CAUSE
REMEDY
PREMATURE TROUGH FAILURE
A) Gauge too light
A) Increase thickness. Consult
catalog materials table / compo-
nent series for recommendation.
B) Screw deflection
B) Eliminate excessive deflection.
Consult catalog for calculation pro-
cedure to determine proper pipe
size and screw length.
C) Bent screw
C) Straighten or replace. Check
before operation.
ACCELERATED FLIGHT
TIP WEAR
A) Gauge too light
A) Increase thickness. Consider
hardfacing.
B) RPM’s too high
B) Slow conveyor down. Consult
catalog engineering section to
determine proper trough loading.
COUPLING SHAFT BREAKAGE
Torque capacity insufficient
Increase torque capacity or use
larger shaft. Check motor amp de-
mand for torque requirements.
SHAFT HOLE ELONGATION A)
Insufficient number of bolts
A) Increase number of bolts.
B) Conveyor subject to "jogging"
B) Cease jogging or frequent stop/
or too frequent stop/start, or fre-
start or overload. If this is not
quent overloads
possible increase bearing capacity
of shaft and/or increase number of
bolts.
DRIVE SHAFT BREAKAGE
Excessive torque
Recalculate HP requirements.
insufficient torque capacity
Increase torque capacity.
Obstruction in conveyor
Check screw alignment.
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