TM-5-5420-203-14
BRIDGE, ARMORED VEHICLE LAUNCHED, SCISSORING TYPE CLASS 60 & CLASS 70 ALUMINUM, 60 FOOT SPAN; FOR M48A5 AND M60 LAUNCHER
TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE
JUNE 1991
TM-5-5420-203-14 - Page 47 of 298
TM 5-5420-203-14
Item
No.
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Table 2-2. Preventive Maintenance Checks and Services (PMCS) -
CONT
Interval
(B, D, A,
M, W)
BEFORE
BEFORE
BEFORE
BEFORE
Location
Item to
Check/Service
Cross bracing
under the
treadways of
center/end
panels (AVLB
60) or bridge
selections
(AVLB 70)
Launching
diaphragm
Hose assem-
blies and quick
disconnects
Hydraulic
piping/fittings/
connections
Procedure
Check to make sure that all angles are
the structural type i.e., there is a curved
radius of material along the apex of the
angle. Inspect for any cracks or
separations especially along the vertical
members.
Inspect for any cracks, damage, bent or
missing item.
Inspect for cracked or split hoses and
any missing hoses or quick-disconnects,
plus attaching hardware. Check to see
that quick disconnects function properly
and no “O” rings (seals) are exposed.
Inspect for missing, cracked, leaking,
bent, or damaged items.
Not Mission
Capable if:
Two or more
angles missing,
not of structural
design, or are
broken due to
cracks forming
along the apex or
through rivet
holes in the same
cross brace (if
cracks exist in
these members,
the cracks should
be monitored for
propagation), (if
cracks exist and
the panel leans or
sags, stop
operation and
replace the
panel).
Missing, cracked,
or bent (if
cracked or bent,
do not launch or
retrieve bridge)
Any class III
leaks.
Any class III
leaks
Change 2 2-7
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