Figure 4-32. Wheel assembly, exploded view.

Cap screw

Washer

Wheel

10.

Bearing cone

Tire

11.

Bearing cone

Inner tube

12.

Grease seal

Inner tube

13.

Bearing cup

Flap

14.

Bearing cup

Grease cup

15.

Hub

Cotter pin

16.

Axle

Nut

Figure 4-32. Wheel assembly, exploded view.

b. Cleaning and Inspection.

tubes with more than four patches.

c. Installation. Using proper tire mounting tools,

(1) Clean the tires with a high-pressure water

hose.

install the tires and tubes on the wheel as shown in

(2) Inspect the tire for cuts, bruises, punctures,

figure 4-32. Note the following:

worn treads, imbedded stones, and severe abrasions.

(1) Position the inner tube (4) and flap (5) in the

Skive around cuts and imbedded stones with a sharp

tire (3).

knife to remove all edges which could catch against

(2) Position the assembled tire and tube on the

sharp rocks and result in further tearing. Inspect the

wheel (2), making sure the valve stem extends in the

inside of the tire for broken cords and punctured walls.

required direction.

Replace tires which are damaged beyond repair.

(3) After you have properly mounted the tire on

(3) You can check the inner tube by filling it

the wheel, inflate the tire to 40 psi.

with air and immersing it in water to locate any leaks.

(4) Install the assembled wheel, tire, and tube

Patch the leaks. Check the tube for cracks, brittleness,

on the hub (15); secure with cap screws (1).

and signs of deterioration. Replace defective tubes or

4-55