TM 9-2330-384-14&P
5-4. UPPER COUPLER ASSEMBLY REPLACEMENT (Con't).
a. REMOVAL
WARNING
DO NOT perform task unless tank is empty and wheels are chocked. If tank
is full, landing gear could collapse when front of semitrailer is lowered.
Damage to semitrailer or serious injury or death to personnel will result.
Position a floor jack (1) directly
(1)
under kingpin (2) at upper
coupler assembly (3). Raise floor
jack to full height.
Operate landing gear and lower
(2)
front of semitrailer until kingpin
(2) contacts floor jack (1).
WARNING
Upper coupler assembly (3) is
heavy and awkward to handle. Use
caution, provide adequate sup-
port, and use assistance during
removal. Failure to follow this
warning may result in serious in-
jury to personnel.
NOTE
Centermost bolts (6) on each side
of upper coupler assembly (3)
should be removed last.
(3) Remove 14 locknuts (4), bolts
(6), and washers (5). Discard
locknuts.
(4)
Carefully lower upper coupler as-
under
from
sembly
(3)
semitrailer. Remove from floor
jack.
b. CLEANING
Remove all traces of old mylar tape from mounting surfaces of upper coupler assembly to
(1)
frame.
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