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Be sure to follow the solvent manufacturer's safety instructions and Safety Data Sheet recommendations.
7)
Perform the following inspections of the control cable:
i.
Use the Model 550 NO GO gauge to inspect the control cable connector for wear. Closely inspect the
connector for bends or cracks in the neck (shank) area and dented areas on the ball of the connector. Remove
the control cable from service if any cracks or bends in the shank or dents in the ball of the male connector are
found during this inspection. The male connector should not be bent at an angle greater than 15 degrees from
the axis of the control cable in the area where it is crimped. Using your hands, attempt to twist or rotate the
male connector off the control cable. If any movement is possible during this test, the control cable must be
removed from service, and the male connector must be replaced.
ii. Carefully inspect the control cable directly behind the remote control cable connector and approximately 12 in
(305 mm) beyond the male connector looking for the following anomalies:
•
Cuts, breaks, nicks or fraying in the spiral windings of the cable.
•
Kinks or permanent bends.
•
Rust (red oxide) on the inner and outer core of the cable.
•
Uniformity of the spacing between the outer helical windings of the cable. Check for flattened areas and
excessive wear that reduces the cable's outer diameter less than 0.183 in (4.7 mm).
•
Perform a flexibility (spring) test of the cable by bending the connector end of the cable into a ‘U’ shape
and then releasing it. A cable that is bent / released and does not spring back into an essentially straight
shape is indicative of internal corrosion of the cable. A ‘crunching” feeling and stiffness when bending the
cable into the “U” shape is another confirmation of the problem. The drive cable must be removed from
service.
•
Carefully examine the drive cable in the area of the control crank assembly looking for cuts, breaks of the
inner and outer spiral metal windings, fraying, rust, unusual stiffness and uniformity of the spacing between
the outer spiral windings.
•
Examine the entire length of cable looking for defects described above.
If a control cable is deemed as defective during this inspection, remove it from service and tag it with a label to
prevent inadvertent use.
The control cable (Model 550 male) connector must be replaced at intervals
not to exceed five (5) years
.
Maintenance program administrators must maintain traceability records (lot numbers) for replacement of all
“Safety Class A” designated components.
8)
Lightly lubricate the control cable using MIL-G-23827B (or C), MIL-PRF-23827C, or equivalent grease. Apply
additional grease to the first 3 ft. (approximately 1m) of control cable (male connector end).
9)
Clean the exterior of the remote control conduits using clean rags and a detergent. Remove all dirt and grease from
the polyvinyl conduits and swaged fittings. Carefully inspect the entire length of remote control conduits for cuts
and melted areas. Repairs to cut or melted areas can be accomplished by taping the area with 3M™ yellow
polyvinyl tape (or black polyvinyl electrical tape). The tape will prevent the ingress of water and other liquid that
would cause corrosion of the remote control drive cable. Visually inspect and feel for dents and inward depressions
on the remote control conduits. The extreme control conduits are dent resistant, but may have flattened areas or cuts
due to impacts.
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