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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PIVOT JOINT
CALIBRATED BREAKAWAY TORQUE WRENCH WALL
CABLE STOP
FWD TB 101 TEST BLOCK (C10-146)
NOTE:____ WALL WITH LIGHT FINGER PRESSURE. WHEN CRIMPED, WIRE CAN NOT TOUCH
S-M56-MM-03554-00-B
Safety Cable Verification Figure 208 (Sheet 1)
L54056
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
NOTE: FOR THREE BOLT PATTERNS,DIMENSION A = DIMENSION D+E
FLEX LIMITS, DIMENSIONS
Safety Cable Verification
Figure 208 (Sheet 2)
S-M56-MM-03555-00-B
L54072
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(e)
Use light finger pressure at the center of the safety cable to push the center ofthe safety cable toward the wall on the test block. 1) Make sure that the safety cable does not touch the wall.
(f)
Do these steps if the safety cable touches the wall: 1) The safety cable is not serviceable, remove it from the test block. 2) Install a new safety cable and start the pulloff load test again.
3) If the cable touches the wall again, the crimping tool is not serviceable. a) Remove the crimping tool from service.
(g)
Move the torque wrench handle counter-clockwise until the
torque wrench clicks or the ferrule moves.
1) If the ferrule moves before you hear the torque wrench
click, the crimping tool is not serviceable. a) Remove the crimping tool from service.
(h)
Use light finger pressure and push the center of the safety cable toward the wall on the test block. 1) If the safety cable does not touch the wall, the crimping
tool is serviceable.
2) Do these steps if the safety cable touches the wall: a) Cut and remove the safety cable from the test block. b) Do the pulloff load test again with a new cable. c) If the new safety cable is not in the limits, remove
the crimping tool from service.
S 732-023-C00
(3) Do these steps to find the exact amount of pressure which is necessary to cause the crimped ferrule or safety cable to fail:
NOTE: CFMI recommends that you do this test at least once a
____
month for each of your crimping tools.
(a)
If it is necessary, set up the safety cable tester.
(b)
Use the instructions from the manufacturer of the safety cable tester to do this test.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
TIGHTENING PRACTICES AND TORQUE VALUES - MAINTENANCE PRACTICES
______________________________________________________________
TASK 70-20-02-912-002-C00
1. Tightening Practices and Torque Values______________________________________
A. General
(1)
This procedure has the definitions, terms and procedures that you use to tighten the fasteners that have threads (bolts, nuts and fittings).
(2)
When you turn a fastener around the axis of the fastener you cause torque.
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