ILF ALL; AUTOTHROTTLE SWITCHPACK WITH REPLACEABLE SWITCHES P/N 254A1150-1, -2, -7, -8, -9, -10
(Continued)
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.
(k) If the switchpack [9] 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 to 25 in-lb (3 N·m) - 30 in-lb (3.4 N·m).
ILF ALL; AUTOTHROTTLE SWITCHPACK WITH INTEGRATED SWITCHES P/N 254A1150-11, -12,
-13, -14, -15, -16
SUBTASK 76-11-07-420-007-F00
(3) Install the applicable switchpack [9] assembly as follows:
(a) Make sure that the Switchpack Assembly is compatible via the interchangeability
cross-matrix table.
(b) Put the switchpack [9] assembly on the bushing [1] of the autothrottle assembly.
(c) Make sure that the missing tooth in the switchpack cam is in the aft direction (View A-A,
Figure 401).
(d) Put the slot of the crank [6] in the up position.
(e) Make sure that the slot in the crank is at 90 degrees to the missing tooth on the shaft.
ILF ALL; AUTOTHROTTLE SWITCHPACK WITH INTEGRATED SWITCHES P/N 254A1150-11, -12
(f) Install the two bolts [2], washers [14], and nuts [13].
ILF ALL; AUTOTHROTTLE SWITCHPACK WITH INTEGRATED SWITCHES P/N 254A1150-13, -14,
-15, -16
(g) Install the two bolts [2], washers [15], washers [14], and nuts [13].
ILF ALL; AUTOTHROTTLE SWITCHPACK WITH INTEGRATED SWITCHES P/N 254A1150-11, -12,
-13, -14, -15, -16
(h) Move the rod [5] into its position on the crank [6].
ILF ALL; AUTOTHROTTLE SWITCHPACK WITH INTEGRATED SWITCHES P/N 254A1150-11, -12
(i) Install the bolt [4], washer [7], and nut [8].
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
CFM56 ENGINES (CFM56-7)
76-11-07
Page 425
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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