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LAUNCH FRAME - UPPER AND LOWER WINCH ROPES
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TM-5-5420-279-23 Dry Support Bridge (DSB) (NSN
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LAUNCH FRAME - DRIVE MOTOR AND GEARBOX
TM 5-5420-279-23
d. Distortion of eyes and thimbles.
e. Rope pulling out of termination crimp. (talurite crimp).
f. Kinking.
g. Correct reeving.
(2)
Check that no foreign objects have lodged under the carriage rope guides or the forward
beam pulleys and rope guides during transit.
b.
Service
(1)
Using cleaning fluid and a cleaning pad/cloth clean the rope as necessary. A wire brush
can be used to remove heavy soiling or accumulation of dirt.
(2)
Use a wire brush to remove any surface corrosion, check that the corrosion is not internal.
Report all corrosion to the supervisor.
(3)
Using a safe means of access and observing all the relevant safety precautions and repeat
step 1 of inspect and steps 1, and 2 of service on the lower winch rope. Part of this
operation can be carried out while working from the gantry.
(4)
Using a safe means of access and observing all the relevant safety precautions check that
the rope is reeved correctly around the pulley blocks on the far and home bank carriages
and that the pulleys are free to rotate.
(5)
As the second section of the launch beam is deployed carry out step 1 of inspect on the top
rope.
(6)
Repeat step 1 of inspect as the remaining six sections of beam are deployed.
(7)
Carry out step 1 of inspect on the upper winch rope remaining on the upper winch drum.
(8)
Check that there are at least 5 Wraps of rope on the upper winch drum.
(9)
Release the rear carriage restraint.
(10)
Working from the folding gantry; carry out step 1 of inspect on the lower winch rope as the
rear carriage is deployed until the rear carriage restraint is fully extended.
(11)
Release the rear carriage locking arms to release the far bank carriage.
(12)
Using a safe means of access or working from the folding gantry repeat step 1 of inspect
on the lower winch rope, as the far bank carriage is slowly fully deployed to the far bank
position.
(13)
When the far bank carriage is fully deployed; carry out step 1 of inspect on the lower winch
rope remaining on the lower winch drum.
(14)
Check that there are at least 5 Wraps of cable on the lower winch drum.
(15)
Examine all components for damage and corrosion.
(16)
Report all signs of damage, broken strands or corrosion to the supervisor.
5-141

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