FLAP CARRIAGE
EXAMPLE INBOARD FLAP GIMBAL
DIMENSION "X"
GIMBAL YOKE A
BALLSCREWCLAMP-UP NUTBOLT
A
FLAP DRIVE BALLSCREW
A
FWD ATTACH FITTING UPSTOP
SEE A
+0.004
0.006 INCH
-0.000
0.01 INCH MIN (EXAMPLE) CLEARANCE (4 LOCATIONS) WHEN THE OPPOSITE SURFACE TOUCHESATTACH FITTING BALLSCREW NUT
INBD
BUSHING
(GIMBAL HORIZONTAL)
GIMBAL BUSHING SHIM VERTICAL (EXAMPLE) GIMBAL (EXAMPLE)
OUTBOARD FLAP GIMBAL A-A
Flap Drive Ballscrew Installation Figure 402
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27-51-71
ALL ú ú 01 Page 405 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 024-014
(4)
Remove the transmission:
(a)
Remove the four bolts that attach the transmission to the flap track.
(b)
Remove the transmission from the airplane.
E.
Remove an Inboard Flap Inboard Transmission (No. 4 or 5)
S 034-015
(1)
Disconnect the transmission ballscrew from the gimbal (Fig. 402):
(a)
Remove the four bolts that attach the gimbal yoke to the ballscrew nut.
(b)
Remove the bushings from the ballscrew nut.
S 034-016
(2)
Disconnect the torque tubes from the flap transmission (Fig. 401):
(a)
Remove the screws that attach the coupling sleeve to the coupling on the transmission.
(b)
Move the coupling sleeves off the coupling.
(c)
Disconnect the torque tube from the coupling.
S 034-017
(3)
If it is necessary, remove the two bolts at the universal joint to disconnect the ballscrew from the transmission.
S 024-018
(4)
Remove the transmission:
(a)
Remove the four bolts that attach the transmission to the flap track.
(b)
Remove the transmission from the airplane.
F.
Remove an Inboard Flap Outboard Transmission (No. 3 or 6)
S 034-019
(1)
Disconnect the transmission ballscrew from the gimbal (Fig. 402):
(a)
Remove the four bolts that attach the gimbal yoke to the ballscrew nut.
(b)
Remove the bushings from the ballscrew nut.
S 034-020
(2)
Disconnect the torque tubes from the flap transmission (Fig. 401):
(a)
Remove the screws that attach the coupling sleeve to the coupling on the transmission.
(b)
Move the coupling sleeves off the coupling.
(c)
Disconnect the torque tube from the coupling.
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27-51-71
ALL ú ú 01 Page 406 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 034-021
(3)
Remove the two bolts at the universal joint to disconnect the ballscrew from the transmission.
S 014-022
(4)
Remove the aileron pulley.
S 014-023
(5)
Disconnect the fire extinguisher line:
(a)
Turn the fire extinguisher line until it is clear of the transmission.
(b)
Install a cap on the two ends of the fire extinguisher line.
S 014-024
(6)
Remove the hydraulic line aft of the transmission.
(a)
Install a cap on the two ends of the hydraulic line.
S 024-025
(7)
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