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 TM 10-3930-633-12
b. Lubricate all grease fittings with GAA,
e. Refer damaged parts to direct or general
Grease, Automotive and Artillery, MIL-G-10924.
support maintenance.
A fitting is provided in each tie rod end, and at
4-90. Lubrication
the upper and lower king pin bushings on each
a. Clean all lubrication fittings prior to
steering knuckle.
lubrication.
turning radius, or OUT to shorten turning radius.
The proper turning radius is 109 inches, and can
The two stop screws, located on the front axle, are
be obtained by setting stop screws so that each
for adjusting the turning radius of the tractor.
front wheel forms an angle of 330 with the front
Adjustment is made by loosening the locknuts
axle beam when toed out, and 530 when toed in.
and turning the stop screws IN to lengthen
4-92. General
4-93. Inspection
The rear bumper plate of the tractor is equipped
mechanism for proper operation. Make sure
with a semi-automatic pintle hook type coupler.
coupler operates freely with no evidence of
See figure 4-63 for installation details. The
sticking or binding.
coupler will automatically connect with towing
b. Check coupler mounting to make certain all
eyes at the proper height. Disengagement of the
mounting bolts are secure and in good condition.
coupler is accomplished by means of the manual
Check coupler height and adjust if required.
actuating lever.
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