TM 5-3810-207-20/TO 36C23-3-37-12
38. Engine Head Indicators Inoperative
Probable cause
Possible remedy
Thermometer head or
Replace thermometer head
tube defective.
or tube.
Defective sending
Replace sending unit (pars.
unit.
80 and 233).
39. Ammeter Gages Inoperative
Probable cause
Possible remedy
Battery cables loose
Tighten terminal connec-
at terminals.
tions (pars. 70 and 209).
Gage defective
Replace gage (pars. 79
and 215).
Wire lead
Tighten connections.
connections loose.
40. Oil Pressure Gages Inoperative
Probable cause
Possible remedy
Loose gage connection
Tighten connection (pars.
79 and 212).
Defective gage
Replace gage (pars. 79
and 212).
41. Heaters Do Not Ignite
Probable cause
Possible remedy
Lack of fuel
Fill fuel tank (TM 5-3810-
207-10).
Clogged fuel filter
Clean or replace fuel filter
(pars. 187 and 329).
Faulty igniter
Replace igniter (pars. 186
and 327).
Faulty fuel pump
Replace fuel pump (pars.
187 and 329).
42. Heaters Do Not Keep Burning
Probable cause
Possible remedy
Faulty igniter
Replace igniter (pars. 186
and 327).
Lack of fuel
Fill fuel tank (TM 5-
3810-207-10).
Defective receptacles
Replace receptacles (pars.
193 and 330).
Clogged filters
Service filters (TM 5-
3810-207-10).
43. Main Chain Drive Excessively Noisy
Probable cause
Possible remedy
Defective chain
Replace chain (report this
condition to field main-
tenance, 3d echelon).
Worn sprocket
Replace sprocket (report
this condition to field
maintenance, 3d
echelon).
Improper adjustment
Adjust main drive chain
(par. 147).
44. Cables Tend to Flatten
Probable cause
Possible remedy
Sheave channel
Replace sheaves (pars.
clearance too great.
158,159, 162, 164, 167,
168, 170, 173, 174, and
177 - 181).
Defective cables
Replace cables (TM 5-
3810-207-10).
Incorrect cable size
Install correct cable (TM
5-3810-207-10).
45. Revolving Frame Teeters or Will Not Swing
Probable cause
Possible remedy
Conical rollers out of
Adjust rollers (pars. 144
adjustment.
and 145).
Worn rollers
Replace hook rollers (pars.
144 and 145).
Swing clutch out of
Adjust swing clutch (TM
adjustment.
5-3810-207-10).
Worn rollers shaft
Replace roller shaft (pars.
144 and 145).
46. Continuous Humming Noise in Front Axle When
Driving
Probable cause
Possible remedy
Wheel bearings
Inspect and adjust wheel
too tight.
bearings (par. 284).
Lack of lubrication or
Check lubricant for
use of improper grade
correct amount and
of lubricant in univer-
proper grade as
sal joints, wheel bear-
specified in LO 5-
ings, transmission, or
3810-207-20).
transfer case.
47. Steering Assembly Cracks When Turning
Probable cause
Possible remedy
Knuckle bearing
Inspect and lubricate (LO
rollers and cups
5-3810-207-20) as
scored or worn
necessary.
Wheel bearing rollers
Inspect wheel bearings and
and cups scored or
replace as necessary
worn.
(par. 284).
Defective shock
Replace shock absorbers
absorbers.
(pars. 288).
48. Steering Hard
Probable cause
Possible remedy
Tires not inflated to
Check and inflate all tires
proper pressure.
to proper pressure (80
psi) (TM 5-3810-207-
10).
Excessive friction in
Inspect and adjust (pars.
tie rod or drag link
279 and 281) and
joints.
lubricate as required
(LO 5-3810-207-20).
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