76-11-08
ALL ú ú C03 Page 410 ú Nov 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(c) Put the control box housing in the correct position to align
the dowel pins and the three bolt holes in the MEC.
NOTE:____ Dowels on fuel control box support plate for CFM56-3-B1
and CFM56-3B-2 engines are located at 0.250 inches off
center while dowels on fuel control box support plate
for CFM56-3C-1 engines are located at 0.437 inches off
center.
(d) Push the control box on the MEC.
(e) Turn the power lever to the 80 degree rig position.
(f) Install the rig pin through the R rig pin hole in the control
box.
NOTE:____ The bolt holes in the control box, the quadrant gear and
the fitting on the MEC are now in alignment.
(g) Install the three bolts to attach the control box.
1) Tighten the bolts to 80-100 in.lb.
CAUTION: MAKE SURE THAT NO WASHERS OR OTHER DEBRIS ARE IN THE
_______ CONTROL BOX HOUSING. WASHERS AND DEBRIS IN THE HOUSING CAN CAUSE THE THRUST LEVERS TO BECOME DIFFICULT TO MOVE.
(h)
Use a light to visually examine the inside of the control box housing to make sure that no washers or other debris are in the housing.
(i)
Install the inner coverplate to the fuel control box with the two bolts, washers, and nuts.
(j)
Use the four bolts and washers to attach the coverplate to the fuel control box. 1) Install lockwire on each pair of bolts.
(k)
Install the autothrottle power lever angle (PLA) synchro if it is not installed on the replacement control box (AMM 22-31-11/401).
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76-11-08
ALL ú ú C02 Page 411 ú Jul 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(l) Install the PLA synchro wire bundle on the MEC bracket with a clamp. 1) Connect the electrical connector.
S 434-035-C00
(3) Connect the push-pull cables for the trhust control as follows:
NOTE:____There are two thrust control push-pull cables. They are
the throttle control cable and the fuel shutoff cable.
(a) Connect the fuel shutoff cable as follows (Fig. 402):
1) Remove the two bolts and washers that attach the fuel
control box cover to the fuel control box.
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