REPAIR OF CHASSIS
6-2. Axle and Suspension System
a. The chassis assembly is primarily a welded
a. Removal and Disassembly.
frame consisting of two longitudinal channels separated
by a series of angle and channel crossmembers. The
(1) Jack up and block the chassis frame so
angles and channels provide support for mounting the
that the tires barely touch the floor.
pump, engine, fuel tank, storage boxes, and remaining
components of the pumping assembly. A drop-down
(2) Remove the tires and tubes (TM 5-4320-
front leg and two adjustable rear stands provide rigid
234-12, para 4-51).
support for the chassis. Chock blocks are also stored on
the chassis frame.
(3) Remove the wheel and hub assemblies
(TM 5-4320-234-12, para 4-52).
b. The axle and suspension system is mounted to
the underside of the chassis frame. The suspension
system consists of two shock absorbers and leaf
Make sure that you support the axle
securing hardware, or injury to
personnel may result.
(4) Remove the nuts (1, fig. 6-1) and
washers (2) securing the axle to the shock absorbers