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EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
20-20-21
ALL ú ú 02 Page 608 ú Nov 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
CONTROL CABLES - INSPECTION/CHECK
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1. General
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A. Use these procedures to verify the integrity of the control cable system. The procedures must be performed along the intire cable run in each system. To ensure verification of the portions of the cables that are in contact with pulleys and quadrants, the control cables must be moved by operation of the applicable system's controls, to expose those portions of the cables.
B. The first task is an inspection of the control cable wire rope.
C. The second task is an inspection of the control cable fittings.
D. The third task is an inspection of the pulleys.
E. These three tasks may be performed concurrently at one location of the cable system on the airplane if desired for convenience.
TASK 20-20-31-216-046
2. Inspection of the control cable wire rope.
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A. Examine the wire rope.
S 146-050
(1)
Clean the cables (as necessary) for the inspection (AMM 12-26-00/301)
S 226-038
(2)
Perform a detailed visual inspection to make sure that the cable does not contact parts other than pulleys, quadrants, cable seals or grommets installed to control the cable routing. The minimum cable clearance from other parts is 0.20 inches except 0.10 inches within 10 inches of a pulley or quadrant. Look for evidence of contact with other parts. Correct the condition if evidence of contact is found.
S 226-039
(3)
Perform a detailed visual inspection of the cable runs for incorrect routing, kinks in the wire rope, or other damage.
(a) Replace the cable assembly if: ú 1) The individual wires in a strand appear to blend together ú (outer wires worn 40 to 50 percent) (Fig. 601).
2) If a kink is found.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
20-20-31
ALL ú ú 01.1 Page 601 ú Jul 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
3) If corrosion is found.
S 226-040
(4) Perform a detailed visual inspection of the cable. To do a check for broken wires, rub a cloth along the cable. The cloth will identify broken wires by catching on them.
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