Chapter 9 REPAIR OF WHEELS AND BRAKES

TM 10-3930-633-34

CHAPTER 9

REPAIR OF WHEELS AND BRAKES

Section I. WHEELS AND TIRES

insert one rim tool in the tool slot of the lock ring,

9-1. General

and pry ring upward and outward.

The rear wheels of the tractor are a one-piece

(8) Continue in this manner progressively

welded steel disc-type wheel with split lock rings,

around rim until ring is completely removed.

sized for 6:50x16 inch tires. Normal inflation

Then remove tire and tube from wheel.

pressure is 45 lbs. The front wheels are two-piece

b. Mounting Rear Tires.

split type, sized for 6:50x10 inch tires. Normal

(1) Place tube inside tire, and lay tire over

inflation pressure is 100 lbs. Both front and rear

wheel (lock ring side up) so that tire valve stem is

tires are 6 ply, tube type.

in line with the hole in the wheel.

9-2. Replacing Tires and Tubes

(2) Pull the valve stem through the hole in

the wheel.

Always deflate tires completely before

(3) Lay lock ring over the wheel and step on

attempting remounting. Remove valve

the ring at the split, to force one end down into its

core to insure complete bleed-off of any

seat.

residual pressure.

(4) Continue around the lock ring using foot

a. Remounting Rear Tires.

pressure to force the ring into place. Make ab-

(1) Jack up vehicle so that tire is clear of the

solutely certain the ring is properly seated all the

floor.

way around.

(2) Deflate tire completely, and remove valve

(5) Inflate tire to about 10 PSI, then deflate

core.

and inflate again to 45 PSI. Use a safety cage

(3) Remove wheel mounting nuts and lift

when inflating tire if one is available. Otherwise,

wheel and tire off vehicle.

lay tire on floor with lock ring side down, or in-

(4) Lay wheel on the floor with the lock ring

flate with lock ring side away from operator.

side facing up.

(6) Mount wheel and tire assembly on

(5) Using the curved end of one rim tool, and

vehicle, and torque wheel nuts to 125 -- 140 ft/lbs.

the hooked end of another, pry the tire bead

c. Remounting Front Tires.

downward, away from lock ring, using downward

(1) Raise or jack up vehicle until the tire

pressure on rim tools.

clears the floor. Deflate tire completely and

(6) Continue prying operation completely

remove valve core.

around the tire until the bead is completely un-

(2). Refer to figure 9-1 and remove the nuts on

seated from the lock ring.

the INNER BOLT CIRCLE ONLY.

(7) To disengage lock ring from the gutter,

9-1