CENTER SECTION DECK EXTRUSION REPLACEMENT (Sheet 1 of 3)
General Mechanics Tool Box SC 5180-90-N26
REMOVE CENTER SECTION DECK EXTRUSION (5 AND 12).
Some deck extrusions may be secured by curb hardware. It may be necessary to
loosen some curb hardware in order to relieve pressure on the deck extrusions for
There are 13 different deck extrusions located on the bridge. Careful inspection of the
deck extrusion removed and matching that extrusion with the match in TM 5-5420-203-
24P is necessary to ensure the correct replacement is requested. Near fits, rounding of
mounting holes, redrilling and/or alteration of deck extrusion and mounting girders or
supports is not authorized.
Alphabetical letters on deck extrusions are indicated to identify like and unlike extrusions.
Access to the deck extrusions is very limited. It will be necessary for the mechanic to
crawl underneath a separated bridge in order to gain access to some hardware.
All deck extrusions may be removed and installed in the same manner as below.
a. Remove nut (l), lock washer (2) and flat
washer (3) from screw (4) securing deck
extrusion (5) to center section. Discard lock
b. Remove flat washer (6) and screw (4) from
deck extrusion (5).
c. Repeat step b. for remaining mounting
hardware items (l), (2), (3), (4), and (6).
Mechanic will have to access remaining
deck extrusion mounting hardware from
underneath the section.