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 51 of 298
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TM 5-5420-203-14
Table 2-2. Preventive Maintenance Checks and Services (PMCS) -
CONT
Interval
(B, D, A,
W, M)
DURING
DURING
DURING
DURING
DURING
Location
Item to
Check/Service
Transport of
bridge on
launcher (travel
mode)
Pivotal markers
located along
longitudinal
centerline of
the bridge (for
AVLB 70 only)
Painted circle
(AVLB 70)
painted on
outsides of
bridge panels/
sections
Obstructions
on treadway of
bridge
Vehicle
crossing
Procedure
During transport check for lateral
(horizontal) motion of the bridge (top
half sliding over bottom half while
bridge rests in its travel lock seats) (this
motion is most likely to be caused while
traveling cross country).
Check to ensure that they are free to
rotate and that they remain up-right
when the bridge is laid over the gap.
Keep free of mud, snow, and ice.
Repair or replace bent or damaged
markers.
Check to see that they are visible and
readable. Replace by repainting, as
necessary.
Check for accumulation of mud, snow,
or ice. Keep bridge cleared off for safe
travel.
Vehicles should slow down to a near
stop when entering the bridge, then
move across bridge, one at a time, at
safe, steady speeds, not to exceed 8
MPH. Avoid any “stop braking on
bridge”.
Not Mission
Capable if:
Any excessive
motion, e.g., 2-3
inches of slide in
either direction
(this will cause
undue stress on
the center hinges)
(if experienced,
tie or clamp
bridge ends
together).
Both markers
missing or
damaged beyond
repair.
All side markings
missing or
unreadable.
Any unsafe
condition that
cannot be
immediately
corrected.
Any unsafe act
that cannot be
immediately
corrected.
Change 2 2-8.3
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