THE TWO ENDS OF THE CABLE AT THE SAME TIME.
2) With the inner member of the feedback cable fully retracted at the MEC end, remove the support tube. a) Count and write down the number of turns necessary to
remove the rod end bearing.
NOTE: Do this to keep the cable length constant during
____ the installation.
b) Loosen the nose cap.
CAUTION: DO NOT PERMIT DIRT OR UNWANTED MATERIAL TO GET
_______ INTO THE OPEN END OF THE CABLE.
c) Remove the nose cap and the support tube assembly from the feedback cable. 3) Do a visual check of the open part of the inner member for damage or bends.
NOTE: Do this with the cable inner member fully extended
____ at the MEC end.
4) Make the cable inner member straight, by hand. 5) Retract the cable inner member at the MEC end. 6) Install the nose cap and support tube assembly.
CAUTION: USE TWO WRENCHES WHEN YOU TIGHTEN THE NOSE CAP OR THE
_______ CABLE WILL TWIST. USE ONE WRENCH ON THE CONDUIT CAP AND ONE ON THE NOSE CAP.
7) Tighten the nose cap to 180-200 pound-inches
(20.3-22.6 Newton meters).
8) Install a lockwire.
9) Install the rod end bearing and jamnut.
a) Turn the rod end bearing and jamnut on the cable.
NOTE: Do this the same number of turns as it is
____ necessary to remove the bearing.
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b) Do a check that the threads are sufficiently engaged.
NOTE: To do this, make sure a 0.032 inch (0.8 mm)
____ diameter lockwire does not go through the witness hole.
c) Tighten the jamnut against the rod end bearing to 20-25 pound-inches (2.3-2.8 Newton meters).
(k) Do the pull check.
1) If the pull force is more than 6 pounds (27 N), replace the cable (AMM 75-32-05/401).
G. Do the Travel Check (Fig. 503)
S 035-008-C00
(1)
Make sure the ends of the VBV feedback cable are disconnected from the MEC feedback arm and the reverser arm of the stop mechanism.
S 215-009-C00
(2)
Do a check of the cable length at the stop mechanism end.
S 865-010-C00
(3)
Operate the VBV system to the full closed position
(AMM 75-32-00/201).
(a)
ENGINES POST-CFMI-SB 72-580; Make sure the free lever touches the return lever (Fig. 503A, Sheet 1 and 2).
(b)
Adjust the cable position.
NOTE: To do this, put the MEC end of the cable in position.
____ Put it in a position such that the top edge of the support tube is between the ends of the shaded area (Fig. 503, View B).
(c)
Try to attach the clevis end to the reverser arm.
(d)
If the cable is too short, do the steps that follow: 1) Loosen the jamnut. 2) Turn the clevis on the threaded end.
(e)
If the cable is too long, do the steps that follow: 1) Loosen the jamnut.
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SEE C
SEE A
SHADED AREA
SEE C
SUPPORT TUBE B MEC
A
S-M56-MM-0414-(1)-00-B(MOD)
APPLY TENSION
APPLY TENSION
PULL SCALE
PULL SCALE
LOCKWIRE LOCKWIRE APPLY A FORCE
MEC APPLY
FEEDBACK A FORCE MEC
THE NECESSARY OVERLAP MAKES ARM THE NECESSARY GAP MAKES FEEDBACK
SURE THE BLEED VALVE DOORS SURE THE BLEED VALVE DOORS ARM
ARE IN THE FULL CLOSED ARE IN THE FULL OPEN
POSITION BEFORE THE MEC POSITION BEFORE THE MEC
FEEDBACK ARM TOUCHES FEEDBACK ARM TOUCHES
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