4-40. SUSPENSION ASSEMBLY/BOGIE (CONT)
Remove masking tape from platform spindle (6) and install spanner nut (3) partially onto spindle to protect
threads. Continue to thread spanner nut (3) onto platform spindle (6) until spanner nut is flush with bottom of
spindle. Discard masking tape.
Personnel moving bogie under platform must not, at any time, use caging bolt as a
holding device. Caging bolt is held in place by pressure parking brake spring. If
caging bolt becomes unseated from brake chamber, injury to personnel may
With two people positioned at bogie (11) and a third person to guide overhead lifting device (26), slowly roll bogie
(11) under platform and into alinement under platform spindle (6).
Use crowbar (29) to center bearing cavity in upper suspension arm (22) with platform spindle (6).
Remove caps/plugs installed on two hydraulic hoses (14) to allow suspension cylinder (28) to draw in air as
suspension cylinder expands.
It may be necessary to use the crowbar to help start to raise the upper suspension
arm as the overhead lifting device is raised.
Use the crowbar to pry the upper suspension arm upward and use one of the dual
sets of tires on bogie to pry against.
A floor jack placed under bogie may be used to assist in getting upper suspension
arm alined with spindle.
Place crowbar (29) just behind suspension cylinder (28) and on top of one of the sets of dual tires on bogie (11).
When raising upper suspension arm, make sure that the upper suspension arm
does not contact the platform spindle or damage to equipment may result.
The following task will require three people. One person to operate the overhead
lifting device, one person to adjust position of upper suspension arm with
crowbar, and one person to check and assist in alinement of the bogie upper
suspension arm with the platform spindle.
Using one person to carefully push down on crowbar (29) and one person operating overhead lifting device (26),
start raising upper suspension arm (22) onto platform spindle (6).