Table 1. Operator Preventive Maintenance Checks and Services (PMCS)
for Improved Ribbon Bridge Ramp Bay (Contd).
ITEM TO
NOT FULLY
ITEM
CHECK/
MISSION
NO.
INTERVAL
SERVICE
PROCEDURE
CAPABLE IF:
TM 5-5420-278-10
0015 00
0015 00-8
15
Before
Lower lock-drive
assembly (1)
a. Check for structural damage and
corrosion.
b. Lubricate as necessary.
a. Damage prevents
proper jackscrew
and pin operation.
1
NOTE
To prevent seizure and
distortion, ensure lower lock-
drive jackscrew is backed-off
one full rotation after lower
lock-drive pin is fully
retracted.
16
Before
Right front
inner ponton
end skin surface
(2)
Check for structural damage.
Puncture, tear, or
damage allows
water to enter
ponton. Any visible
hole will deadline
bay.
2
