ILF ALL; AUTOTHROTTLE SWITCHPACK WITH INTEGRATED SWITCHES P/N 254A1150-13, -14,
-15, -16
(j) Install the bolt [4], washer [3], washer [7], and nut [8].
ILF ALL; AUTOTHROTTLE SWITCHPACK WITH INTEGRATED SWITCHES P/N 254A1150-11, -12,
-13, -14, -15, -16
(k) Make sure that the switchpack assembly wire bundle is held in the applicable wire bundle
sheath.
(l) Do the initial alignment of the switchpack as follows:
1) Do the applicable steps in the switch installation test to show the TRA position
values on the FMCS CDU (TASK 76-11-07-820-801-F00).
2) Monitor the continuity of the S5 switch, pins 8 and 9, at the applicable electrical
connector D11130P (left switchpack) or D11134P (right switchpack) as you slowly
move the thrust lever in the reverse direction.
NOTE: There is approximately a 2-second delay between the movement of the
reverse thrust lever and when the value shows on the FMCS CDU.
3) The S5 switch should change from CLOSE to OPEN at a TRA between 31.0
degrees and 32.0 degrees.
(m) If the switchpack [9] assembly operation is not in the specified range, do these steps:
1) Loosen the two jamnuts and turn the rod [5] coupling to get the correct TRA position
values.
NOTE: There is approximately a 2-second delay between the adjustment and when
the value shows on the FMCS CDU.
a) If a larger adjustment is necessary, do these steps:
<1> Remove the rod end from the crank.
<2> Turn the rod end in 1/2 turns as necessary.
<3> Install the rod end to the crank.
2) Tighten the two jamnuts 25 in-lb (3 N·m) - 30 in-lb (3.4 N·m).
ILF ALL
SUBTASK 76-11-07-700-003-F00
(4) Do a check of the applicable switch installation (TASK 76-11-07-820-801-F00).
SUBTASK 76-11-07-400-001-F00
(5) Make sure that you install applicable switchpack connectors as follows:
(a) For the left switchpack [9], connect the electrical connectors, D11128P and D11130P.
(b) For the right switchpack [9], connect the electrical connectors, D11132P and D11134P.
ILF ALL; AUTOTHROTTLE SWITCHPACK WITH INTEGRATED SWITCHES P/N 254A1150-11, -12,
-13, -14, -15, -16
SUBTASK 76-11-07-210-001-F00
(6) Do a check of the routing of the applicable switchpack wire bundle:
(a) Examine the wire bundle (yellow) near the linkage (crank and rod).
(b) Move the thrust lever from idle to full thrust.
(c) Make sure that the wire bundle does not touch the linkage.
1) If it is necessary adjust the routing of the wire bundle.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
CFM56 ENGINES (CFM56-7)
76-11-07
Page 426
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
To Next Page
Loading...
