TM-9-2330-356-14
SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1
TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1990
TM-9-2330-356-14 - Page 328 of 528
TM 9-2330-356-14
(13) Repeat steps (8) through (12) for other side.
(14) Slowly lower axle.
b.
Installation (Fig. S-S).
(1) Move axle into position under semitrailer.
Raise and revolve axle into position on ends of suspension
springs.
(2) At each end of axIe, loosely install spring
seats, adjustment plates, cushioning pads, and spring end
caps with two U-bolts, four washers, and four nuts.
(3) At each end of axle, loosely install spring end
cap to spring seat on axle with four bolts, four washers, and
four nuts.
(4)
(5)
(6)
(7)
(8)
Tighten all nuts evenly to 200-320 lb.-ft.
Install brake air chambers (para 4-38).
Install wheels (para 4-49).
Remove supports and jacks.
Tighten wheel nuts to proper torque and in
Figure 5-6. Bogie Assembly Removed from Semi-
proper sequence (pars 4-49).
5-16.
Bogie Assembly (M967, M969, and M970
except M970 SN TC-0843, TC-0844, and TC-103
thru TC-178).
a.
Removal.
(1)
Position semitrailer on hard, level surface
with front resting on landing gear. Raise rear of
semitrailer with an overhead crane or A-frame support
until all wheels are approximately l-inch off the ground.
Block the frame securely (fig. 5-3).
WARNING
Release air pressure from both air reservoirs
before doing any work on brake lines or other
pressurized air lines.
(2) Release air from both air reservoirs by
opening drain cocks on bottom of reservoirs (fig. 4-79).
Tag and disconnect eight hoses from brake air chambers
on both axles. Manually release the fail-safe springs
(para 2-4).
(3) Remove two upper torque rods (para 5-11).
(4) Position jacks under mounting brackets of
trunnion cross tube (one jack under each bracket) to
support weight of trunnion cross tube. Remove four nuts,
washers, and bolts which fasten each mounting bracket to
support bracket (fig. 5-3).
(5) Remove jacks from under trunnion cross
tube. Raise semitrailer another 16-inches, or until there is
enough clearance to roll the bogie assembly and wheels
out from under rear of semitrailer (fig. 5-6).
(6) Lower semitrailer onto supports or cribbing
after bogie assembly is removed (fig 5-3).
b.
Installation.
NOTE
The upper torque rods on the front and rear
axles will be toward the right aide (curbside)
of the semitrailer If the bogie assembly Is
installed correctly.
(1) Raise rear of semitrailer to allow bogie
assembly to roll under frame from rear. With front of
bogie assembly toward front of semitrailer, roll bogie
assembly into position under support brackets for
trunnion cross tube.
(2) Lower the semitrailer to within 1-inch of the
trunnion cross tube bracket. Ensure that the holes of the
support brackets are in line with holes in trunnion cross
tube bracket.
(3) Install eight bolts, washers, and nuts. As you
tighten the nuts, jack up the trunnion cross tube brackets
to seat the support brackets. Tighten nuts to
450-650 lb.-ft. Remove jacks.
(4) Install upper torque rods (para 5-11).
(5) Connect hoses to brake chambers as tagged.
Manually release fail-safe springs (pars 2-4).
(6) Remove supports and jacks.
5-20
Change 3
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