TM 9-2320-209-10-1
n.
(1) The front axle is made up of a housing, differential and pinion, axle shaft, with
universal joint, and steering knuckle. Power is sent from the differential to the wheels,
through the axle shaft. Universal joints permit continuous delivery of power to the wheels
while the truck is turning right or left.
(2) Both rear axles are made up of a housing, differential and carrier assembly,
and an axle shaft. Forward rear and rear rear axles are mounted, one behind the other,
with torque rods on each side of the interconnecting axles. Power is sent from the transfer
to the front rear differential by a propeller shaft, and from the forward rear axle to the rear
rear axle differential by another propeller shaft. Axle shafts transmit power from the
differential to the wheels.
(3) The wheels are disk-type, secured to six studs on the wheel hubs. The wheels
are completely interchangeable. Trucks with dual wheels use 9x20 size tires. Single
wheels use llx20 tires. Single wheels can be used on dual wheel trucks if there is enough
clearance between the tire and body under full payload.
(4) The wheel hubs are mounted on roller bearings. Each hub is secured to its
axle with two adjusting nuts and an adjusting nut lock. All hubs have inner seals, and rear
hubs also have an outer seal.
1.
Differential and carrier
7.
Front axle
2.
Rear rear axle
8.
Housing
3.
9.
Tires
4.
Steering knuckle
10.
Wheels
Axle shaft with universal joint
5.
11.
Hubs (behind wheels)
6.
12. Front rear axle
Differential
Figure 2-18. Axles, Wheels, and Hubs System Component Location.