TM 9-2330-388-14
(13) Repeat steps (8) through (12) for other side.
(5) Position a jack under the trunnion tube
close to the inside of each trunnion hanger to support
(14) Slowly lower axle.
weight of trunnion tube.
b.
Installation, Fig. 54.
(6) Remove four nuts, four washers, and four
bolts which fasten the trunnion hanger to the mounting
bracket. Repeat for opposite side.
(1) Move axle into position under semitrailer.
Raise and revolve axle into position on ends of
(7) Remove jacks from under trunnion tube.
suspension springs.
Raise semitrailer until there is enough clearance to roll
the bogie assembly and wheels out from under rear of
(2) At each end of axle, loosely install spring
sets, adjustment plates, cushioning pads, and spring end
caps with two U-bolts, four washers, and four nuts.
(8) Lower semitrailer onto supports or cribbing
(3) At each end of axle, loosely install spring
end cap to spring seat on axle with four bolts, four
b.
Installation
washers, and four nuts.
(1) Raise rear of semitrailer to allow bogie
(4) Tighten all nuts evenly to 200-320 lb-ft.
assembly to roll under frame from rear. With front of
bogie assembly toward front of semitrailer, roll bogie
assembly into position under mounting brackets for the
trunnion hangers.
(2) Position a jack under trunnion tube as close
(7) Remove supports and jacks.
as possible to the inside of each trunnion hanger.
(8) Tighten wheel nuts to proper torque and
(3) Lower the semitrailer to within one inch of
the trunnion hangers.
5-10.
Bogie Assembly
(4) Aline holes in mounting bracket with holes
in hanger.
a.
Removal
(5) Install four capscrews, four washers, and
(1) Position semitrailer on hard, level surface
four nuts. As the nuts are tightened, jack up trunnion
with front resting on landing gear.
tube to seat the trunnion hanger. Tighten nuts to 90 lb.-
ft.
(2) Jack up rear of semitrailer and support
under frame securely until weight of semitrailer is
(6) Tighten two trunnion capscrews and nuts.
(7) Repeat steps (4) through (6) for opposite
(3) Release air from both air reservoirs by
side.
opening drain cocks on bottom of reservoirs, fig. 4-54.
(8) Connect eight hoses to brake air chambers
(4) Tag and disconnect eight hoses from brake
on both axles as tagged. Manually release the failsafe
air chambers on both axles. Manually release the
springs, para NO TAG
failsafe springs, para NO TAG
(9) Remove jacks and supports, and lower
semitrailer to ground.
5-14