M. Lubricate splines with grease and connect torque tubes to transmission. Install screws through sleeve and coupling. Lockwire heads of screws together.
CAUTION: DO NOT APPLY END LOAD TO TRANSMISSION INPUT SHAFTS WHEN INSTALLING TORQUE TUBES.
N. Position flap control lever in 5-unit detent.
O. Coat nonworking groove portions of jackscrew with lubricating oil. These areas consist of first three turns of flap screw from upstop and first four turns from downstop.
P. Immediately exercise flaps through full travel to clean off excess lubricating oil with ball screw wipers.
Q. Check that flap transmission operates smoothly without binding.
6. Restore Airplane to Normal
A. Extend flaps.
B. Install flap track fairing (Ref 27-51-121, Outboard Flap Track Fairings, 27-51-141, Inboard Flap Track Fairings, or Chapter 54, Engine-to-Wing Fairing).
C. Retract flaps.
D. Remove system A hydraulic power (Ref 27-51-0).
501
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E81203
Transmission Location and Definition of Dimension X 500
27-51-281Page 408 Figure 403 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 01/95
FLAP TRANSMISSION - INSPECTION/CHECK
1. Minimum Torque Brake Lockout - Check
A. General
(1) The following procedure provides instructions to aid in locating a transmission gearbox with a below minimum torque brake setting. While an exact check of the torque brakes can only be accomplished during overhaul, this airplane-check method will prevent the unnecessary removal of transmission gearboxes with acceptable torque brakes.
B. Equipment and Materials
(1)
Universal Joint Torque Wrench Adapter
(a)
On transmissions with basic part numbers 65-5025X-X
1) F80122-11, Transmissions 1, 2, 7 and 8
2) F80122-13, Transmissions 3, 4, 5 and 6
(b)
On transmissions with basic part numbers 65-5030X-X or 65-5032X-X 1) F80122-14, Transmissions 3, 4, 5 and 6 2) F80122-15, Transmissions 1, 2, 7 and 8
(2)
Right Angle Gearbox Torque Wrench Spline Adapter - F80122-12
(3)
Torque Wrench - (250 to 800 lb-in. range)
(4)
Corrosion Preventive Compound - MIL-C-11796, Class 3 (Ref 20-30-21)
(5)
Grease - MIL-G-23827 (Ref 20-30-21)
C. Prepare for Check
(1) Disassemble universal joint on gearbox to be tested by removing bolt at universal joint (Fig. 601).
NOTE: Examine output shaft at bearing/seal location for signs of corrosion. If present, bearing/seal should be replaced before continuing check.
(a) Install universal joint torque wrench adapter in universal.
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G26206G26215
Flap Transmission Installation 500
27-51-281 Figure 601 (Sheet 1) Feb 15/70
Page 602
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500 Flap Transmission Installation
Feb 15/70 Figure 601 (Sheet 2) 27-51-281
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BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(b) Connect torque wrench (250 to 800 pound-inch range) to adapter and block it against structure to prevent rotation.
(2) Disconnect torque tube from inboard side of right angle gearbox on same side of airplane as gearbox to be tested.
(a)
Remove screws attaching torque tube coupling sleeves to gearbox spline couplings.
