Clutch out of adjustment. ........... Adjust clutch (TM-5-3820-
27. Engine Knocks or Develops Excessive Noise
205-10/1).
Probable cause
Possible remedy
Worn clutch linings,
Report this condition to field
Rocker arm clearance
Adjust rocker arms (para. 97)
broken throwout yoke
maintenance, 3d echelon.
incorrect.
or springs. Oil-soaked
Worn main or connecting
Report this condition to field
linings, warped clutch plates.
rod bearings. Loose
maintenance, 3d echelon.
32. Batteries Fail to Maintain Charge
piston pin. Broken
Probable cause
Possible remedy
piston or ring, loose
Electrolyte below proper
Fill to the proper level with
or worn timing gears.
level.
clean distilled water (para. 8).
Injection pump timing
Report this condition to field
Generator brushes worn
Replace generator brushes
incorrect.
maintenance, 3d echelon.
or generator defective.
(para. 80). Test and replace
28. Engine Has Low or No Oil Pressure
generator (para. 80).
Probable cause
Possible remedy
Generator regulator
Test and replace generator
Oil pressure gage
Replace oil pressure gage and
defective.
regulator (para. 79).
defective.
sending unit (para. 83).
Connections in wiring
Repair all wiring that has
Oil too light or diluted.................. Drain and replace with
shorted or loose.
shorts or tighten all loose
proper lubricant (LO 5-
connections (para. 89).
3820-205-20/1).
33. Reciprocating Feeder Does Not Operate
Oil pressure line and
Replace line and fittings
Probable cause
Possible remedy
fittings to engine
Feeder electric motor
Replace feeder electric motor
safety switch leaking
drive belt worn or
drive belt (para. 119).
or defective.
broken.
Dirt in oil cool - bypass
Clean oil cooler bypass valve
Drive sheave on feeder
Replace drive sheave (para.
valve or broken spring.
and replace spring if
electric motor or gear
122).
necessary (para. 68).
reducer defective.
29. Engine Exhaust Smokes
Defective gear reducer............... Replace gear reducer (para.
Probable cause
Possible remedy
Engine temperature low ............ Test and replace thermostat
Feeder electric motor
Replace magnetic starter
magnetic starter
switch (para. 129) and re-
Fuel injectors defective
Replace fuel injectors (para.
switch or wiring
pair wiring.
or dirty.
61).
defective.
Poor grade diesel fuel ................ Drain fuel system and re place
Feeder electric motor
Replace feeder electric motor
with proper grade of fuel.
defective.
Worn or sticking rings,
Report this condition to field
Electric motor control
Replace defective control
worn valve guides and
maintenance, 3d echelon.
switch heater defective.
switch heater (para. 129).
seals.
34. Rotary Elevator Inoperative
Restriction in air supply .............. Check and clean air cleaner
Probable cause
Possible remedy
(TM 5-3820-205-10/1).
Rotary elevator electric
Replace elevator electric mo-
30. High Oil Consumption
motor drive belt worn
tor drive belt (para. 119).
Probable cause
Possible remedy
or broken.
Oil leaks....................................... Locate and repair leaks.
Drive sheave on elevator
Replace drive sheave (para.
Too high oil level
Check oil level and fill to in-
motor or gear reducer
122).
maintained
dicated full mark on bay-
defective.
onet gage.
Electric motor control
Replace defective motor con-
Incorrect grade oil....................... Refer to current lubrication
switch heater defective.
Trol switch heater (para.
order and fill with proper
129).
grade oil.
Elevator electric motor
Replace magnetic starter
Oil pressure too high,.................. Clean and free oil cooler by-
magnetic starter switch
switch (para. 129). Repair
relief valve sticking.
Pass valve spring(para.
or wiring defective.
wiring.
Elevator electric motor
Replace elevator electric mo-
Worn, broken, or stick-
Report this condition to field
defective.
tor (para. 130).
ing rings, worn bear-
maintenance, 3d echelon.
Defective gear reducer............... Replace gear reducer (para.
ings or valve guide.
31. Power Takeoff Clutch Slips or Grabs
Elevator rollers defective
Replace rollers (para. 158).
Probable cause
Possible remedy
AGO 8157A
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