Drive sheave on conveyor
Replace defective sheave
35. Roll Crusher Does Not Operate Properly
motor or gear reducer
Probable cause
Possible remedy
defective.
Main drive belts slipping............. Adjust main drive belts (para.
Defective gear reducer............... Replace defective gear re-
Roll tension springs
Replace roll tension springs
Electric motor starting
Replace electric motor start-
defective or broken.
switch defective or
36. Vibrator Screen Does Not Operate
defective wiring.
pair defective wiring.
Probable cause
Possible remedy
Defective heater, electric Replace defective motor con-
Vibrator screen electric
Replace vibrator screen elec-
motor control switch.
trol switch heater (para.
motor drive belt worn
tric motor drive belt (per.
129).
or broken.
119).
Defective electric motor ............. Replace electric motor (para.
Drive sheave or vibrator
Replace drive sheave (para.
screen electric motor
122).
40. Brakes Faulty
defective.
Probable cause
Possible remedy
Vibrator screen mag-
Replace magnetic starter
Air lines broken or
Replace broken or damaged
netic switch or wiring
switch (para. 129). Repair
damaged,
defective.
wiring.
Air filter damaged .............Replace broken or damaged
Vibrator screen electric
Replace vibrator screen elec-
motor defective.
Replace broken or damaged
Electric motor control
Replace defective motor con-
damaged.
switch heater defective.
trol switch heater (para.
Air chamber broken or
Replace broken or damaged
129).
damaged.
37. Vibrator Screen Gallops
Air tank broken or
Probable cause
Possible remedy
damaged.
Rubber mounting shocks
Replace rubber mounting
Brake control mechanical
Adjust slack adjuster (para.
broken or defective.
slack adjuster out of
178).
Balance wheel broken
Replace balance wheel (para.
adjustment.
or defective.
165).
Defective or broken
Repair or replace damaged
38. Conveyor Belt Wears Excessively
slack adjuster,
Probable cause
Possible remedy
Defective or worn brake
Replace defective or worn
Belts not troughing or
Adjust conveyor belts (para.
lining.
tracking properly.
150 and 151).
Defective or broken
Replace broken or defective
Conveyor belt scrapers
Replace conveyor belt scrap-
brake shoe.
defective.
41. Power Failure in Main Electrical Panel
Rocks wedged between
Remove rocks.
Probable cause
Possible remedy
side or back of
Burned or damaged
Correct cause of heater strip
troughing conveyor
heater strips.
failure and replace heater
and belt.
strips (para. 129).
Rock or gravel sticking
Clean out rock or gravel.
Defective or damaged
Replace magnetic starter
to head belt scrapers
magnetic starter,
(para. 129).
and return idler rollers.
Defective or damaged
Repair or replace defective
Roller on idler not
Check idlers for tight rollers
wiring.
wiring as required.
turning.
and adjust or loosen.
Master switch to indi-
Reset switch and circuit
Sand imbedded in fabric
vidual circuit breakers
breakers as required.
of rear flashing on
Clean off sand.
turned OFF.
troughing conveyor.
42. Tail and Marker Light Inoperative
Deflectors of troughing
Straighten out bent portion.
Probable cause
Possible remedy
conveyor bent down.
Burned out lamp......................... Replace lamp (para. 107).
39. Feeder Conveyors Inoperative
Wiring defective.......................... Repair or replace wiring
Probable cause
Possible remedy
Feeder conveyor electric
Replace broken or worn belts
Electrical (trailer)
Repair or replace electrical
motor belts worn or
coupling or receptacle
receptacle or coupling (para.
broken.
defective.
106).
AGO 8157A
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