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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
(i)
Make sure you can easily install the rig pin F-1.
1) If you cannot easily install the rig pin, adjust the cam link again.
(j)
Tighten the two checknuts on the cam link.
(k)
Install the lockwire on the checknuts.
(l)
Make sure the threads on the rod end and the sleeve engage in the limits.
(m)
Remove the rig pin F-1.
S 865-025
(10)
Supply the system B hydraulic power (AMM 27-51-00/201).
S 865-026
(11)
Fully extend and retract the flaps through a minimum of two full cycles.
S 865-027
(12)
Move the flap control lever to the UP detent to retract the flaps.
(a)
Stop for 2 minutes to permit the flaps to fully retract.
S 865-028
(13)
Remove the system B hydraulic power (AMM 27-51-00/201).
S 485-029
(14)
Make sure you can easily install the rig pin F-1 in the flap control unit.
(a)
If you cannot easily install the rig pin, adjust the flap control valves again.
S 415-030
(15)
Install the lower pan on the flap control unit.
I.
Adjust the Trailing Edge Flap Transmissions
S 865-031
(1)
Make sure the flaps are in the fully retracted position.
S 215-032
(2)
Make sure the angular clearance between the upstops on the ballscrew yoke and the ballscrew nut is 170 to 190 degrees (1/2 turn |10 degrees) (Fig. 505).
S 825-034
(3)
If the angular clearance is not in the tolerance adjust the flap transmissions:
(a)
If it is necessary to adjust the four transmissions on one wing: 1) Disconnect the torque tube from the flap power unit. 2) Turn the torque tube until the transmissions are in the
correct position.
(b)
If it is necessary to adjust one transmission: 1) Disconnect the two torque tubes on the transmission.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
SEE A
FLAP TRANSMISSION ASSEMBLY UPSTOP DOWNSTOP DOWNSTOP
FLAPDRIVE BALLSCREW
FWD (EXAMPLE) A SEE UPSTOP B BALLSCREW NUT UPSTOP (BALLSCREW NUT) UPSTOP (BALLSCREW YOKE)
DIMENSION "X"
B
Flap Transmission Assembly Adjustment Figure 505
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
2) Turn the input shaft for the transmission until the transmission is in the correct position.
(c) Connect the torque tubes:
NOTE: Make sure you do not change the position of the
____ transmission or the flap power unit when you connect the torque tubes.
1) Install the three screws to attach the coupling sleeve to the coupling. 2) Install the lockwire on the screws.
S 865-035
(4)
Supply the system B hydraulic power (AMM 27-51-00/201).
S 865-036
(5)
Fully extend and retract the flaps through a minimum of two full cycles.
(a)
With the flaps fully retracted, make sure the angular clearance between the upstops on the ballscrew yoke and the ballscrew nut is 170 to 190 degrees (1/2 turn |10 degrees) (Fig. 505).
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