TM9-2330-368-14 & P
b. Installation.
5-6. SPRINGS AND SUSPENSION
Materials/Tools
General mechanics tool kit
(1) Install each bumper (17) on studs and
Open end wrench, 1-5/16 inch
secure with flat washers (16), lock
Ratchet, 3/4 inch drive
washers (15) and nuts (14).
Socket, 1-5/16 inch, 3/4 inch drive
Torque wrench, 3/4 inch drive, 0-600 lb-ft.
(2) Place U-bolts (13) over axle (18) at
mounting pads (19).
NOTE
Following procedures are for one
complete axle suspension. If only one
NOTE
wheel requires maintenance, perform
Hook end of all springs must be
steps for that wheel only.
toward equalizer bolt (21).
a. Removal.
(1) Jack up front or rear axle high enough
(3) Raise spring (10) and support in
to relax tension on springs.
position under mounting pad (19).
(2) Block up corners of trailer (front or
(4) Install bottom plate (12) with four hex
rear).
nuts (11) but do not tighten nuts.
(3) Remove two hex nuts (1), bolts (2)
(5) Install roller (9), bolt (8) and hex nut
and torque arm (3).
(7). Tighten nut fully but roller must
be free to rotate.
CAUTION
The rollers for front and rear
(6) Install roller (6), bolt (5) and hex nut
springs at either end are all differ-
(4). Righten nut fully but roller must
ent. Do not mix up parts.
be free to rotate.
(4) Remove hex nut (4), bolt (5) and roller
(7) Adjust position of spring (10) if
(6).
necessary so spring is centered.
Tighten nuts (11) to 350 lb-ft (475
(5) Remove hex nut (7), bolt (8) and roller
Nm).
(9).
(8) Install torque arm (3), bolts (2) and
hex nuts (1). Tighten nuts to 250 lb-ft
(6) Support spring (10) to prevent it from
(339 Nm).
dropping. Remove four hex nuts (11)
and bottom plate (12).
(9) Perform same procedure for other
axle suspension components if
(7) Remove spring (10) and U-bolts (13).
necessary.
(8) Remove two screws (14), lock washers
(10) Remove blocking from under corners
(15), flat washers (16) and bumper
of trailer.
(17).
(11) Lower axle and remove jacks.
(9) Perform same procedure to remove
other axle suspension components if
(12) Adjust torque arms (para. 5-7).
necessary.
5-4
