TM-9-2320-273-34
TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
DECEMBER 1980
TM-9-2320-273-34 - Page 430 of 801
TM 9-2320-273-34
(2)
Inspect for wear or damage
differential pinions and side gears in sets.
to the differential pinion and side gear teeth. Always replace
d. Helical Gears.
Inspect helical gears for wear or damage. Gears which are worn, ridged, pitted or
scored, should be replaced. Further, new helical gears used in sets must be permanently marked with
matching or timing symbols to aid in correctly positioning the teeth of both gears at reassembly.
e. Ax/e Shafts.
Inspect axle shafts for signs of torsional fractures or other indication of impending
failure.
10-6. Repair or Replacement.
a. General.
(1)
Replace all worn or damaged parts. Hexnuts with rounded corners, all Iockwasher, oil
seals and gaskets or silicone gasket material should be replaced at the time of overhaul.
(2)
Remove nicks, mars, and burrs from machined or ground surfaces. Threads must be clean
and free to obtain accurate adjustment and correct torque. Studs must be tight prior to reassembling
the parts.
(3)
When assembling component parts, use a press where possible.
b. Silastic Application.
(1) Removal
of all gaskets including silicone is accomplished by peeling or scraping the used
gasket off the carrier-to-housing surfaces.
(2)
Application of silastic (item 29, App B) is as follows:
(a)
Remove dirt, grease or moisture from the surface of the carrier and housing.
(b)
Dry the surface.
(c)
Apply thin bead, approximately 1/8-in. diameter completely around one mating sur-
face and all fastener holes to assure complete sealing and prevent leakage.
WARNIN G
Minor concentrations of acetic acid vapor may be
be produced during application. Adequate
ventilation should be provided when silicone
is applied in confined areas.
Further, eye contact may cause irritation; if
eye contact takes place, flush eyes with water
for 15 minutes and have eyes examined by
a doctor.
(d)
Assemble the components immediately to permit silastic to spread evenly.
10-22
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