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 46 of 298
TM 5-5420-203-14
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No.
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Table 2-2. Preventive Maintenance Checks and Services (PMCS) -
CONT
Interval
(B, D, A,
W,M)
BEFORE
BEFORE
BEFORE
BEFORE
BEFORE
Location
Item to
Check/Service
Connector area
along the
bottom chord
(connectors for
AVLB 60
splice bars &
spacers for
AVLB 70)
Press fit pins
along the top
chord (AVLB
70)
Splice doubler
angles in
bottom chord
Splice plate
along bottom of
each girder
Main alum.
angle exten-
sions (behind
the web of the
splice doubler
angles)
Procedure
Inspect for missing, cracked or broken
connectors/splice bars & spacers.
Inspect for missing, loose, cracked, or
broken press fit pins.
Inspect for missing, cracked, broken, or
damaged angles. If the angles in the
AVLB 60 have the 45
o
notch along the
outer leading edge (both sides of each
web girder plate), cracks will typically
initiate at the notch.
Inspect for missing, bent, warped, or
tom plates.
Inspect for any cracks along the top
leading edge of the aluminum angle
extension.
Not Mission
Capable if:
Any missing
cracked (regardless
of length) or
broken items.
Any missing,
cracked (regardless
of length) or
broken press fit
pins.
Any missing or
broken angles.
Any two angles on
same girder that are
cracked. Any one
angle that has a
crack more than
one inch in length
or extends through
a rivet hole.
Any missing.
cracked, or tom
plates.
Any two angle
extensions cracked
on same girder.
2-6 Change 2
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