C3, TM 9-2320-211-20
(1) Slide one end of the spring through the guide
(4) Position the U-bolt saddle on top of the spring.
Place the U-bolts over the saddle with their ends through
bracket on either axle.
the holes in spring seat.
(2) Slide the other end of the spring into its guide
bracket, and position the spring so that the lower end of
(5) Position the clamp plate on the underside of the
the spring center bolt is directly over the hole in the center
axle with the U-bolts extending through the holes in the
of the spring seat.
clamp plate. Install the four lockwashers and nuts in the
(3) Position the spring saddle on top of the spring.
two U-bolts. Tighten the nuts on the U-bolts to 300-400
Place the two U-bolts over the saddle and spring.
lb-ft torque.
NOTE
NOTE
On the M62, M543, and M246, place the
Be sure that the clamp plate is installed so that
stabilizer beam over the spring and secure it
the shock absorber mounting stud is at the
with U-bolts.
rear of the axle.
(4) Raise the spring seat and insert the ends of the U-
(6) Install the lower shock absorber mounting eye,
bolts in the holes in the seat.
with a rubber bushing inserted in each end of the eye, on
(5) Raise the seat against the spring, being sure that
the mounting stud at the rear left side of the clamp. Install
the lower end of the spring center bolt enters the hole in
the washer and safety nut on the stud and tighten the nut.
the center of the seat.
(7) Position the rear spring eye at the spring shackle.
(6) Install the four lockwashers and nuts on the U-
Install the pin through the shackle and spring eye.
bolts, and tighten the nuts to 350-450 lb-ft torque.
Tighten the safety nut on the capscrew at the bottom of
(7) Install the clamp bolts through the front and
the shackle to clamp the pin in place.
rear ends of the spring seat tube bracket and suspension
(8) Position the front spring eye at the spring
bracket. Remove the jack from under the seat.
hanger. Install the pin through the hanger and spring eye.
(8) Lower the frame to place a load on the spring.
Tighten the safety nut on the capscrew at the bottom of
the hanger to clamp pin in place.
(9) Lower the frame to place a load on the spring,
a. Bearing Adjustment.
and lubricate the spring shackle and hanger pins in
(1) Remove the wheels from both rear axles (para 2-
accordance with LO 9-2320-211-12.
207) to provide access to the spring seat to be adjusted.
(2) Place the jack under the cross tube connecting
2-232. Rear Springs.
the left and right spring seats (fig. 2-217). Raise the jack
a. Removal.
sufficiently to hold the tube in position.
(2) Raise the frame to remove the load from the
two U-bolts (fig. 2-216). Remove the U-bolts from the
springs.
spring seat and spring saddle.
(3) Place a jack under the spring seat. Support the
(4) Remove the clamp bolts (fig. 2-174) from the
seat to prevent the seat and torque rod assembly from
front and rear ends of the spring seat.
dropping when the U-bolts are removed.
(5) Place two jacks under the spring, one on each
(4) Remove the clamp bolts and nuts securing the
side of spring seat. Raise the spring clear of the seat
front and rear ends of the spring seat tube bracket to the
sufficiently to permit some rotation of the spring seat
underside of the suspension bracket.
around the end of the cross tube (fig. 2-217).
two U-bolts. Lower the spring seat on the jack until the
ends of the U-bolt are free of the seat.
(6) Remove the U-bolts from the spring saddle, and
remove the saddle from the spring.
NOTE
On wrecker models M62 and M543, and
tractor-wrecker, model M246, remove the U-
bolts and the stabilizer beam from the rear
spring.
(7) Slide one end of the spring through the guide
bracket on either axle until the opposite end of the spring
is free of its guide bracket.
(8) Then slide the other end of the spring from its
guide bracket, and remove the spring from the vehicle.
b. Installation (fig. 2-174).
