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J.  Position engine thrust crank (12) on splined lower portion of engine thrust shaft (13) with indexing (wide) tooth and valley mated.
K.  Retain thrust crank (12) using washer (1) and nut (10). Tighten nut to torque of 200 to 500 pound-inches.
L.  Check endplay of thrust shaft; maximum allowable endplay is 0.061 inch.
M.  Lockwire nut (10) to thrust crank (12).
N.  Install two engine thrust control cables on engine thrust drum using new cotter pins (24) to retain cables. Remove identification tags.
O.  Install cable guard bracket (23) using four screws (1), spacers (2), washers (3), and locknuts (4).
P.  Install engine start shaft (Ref 76-11-41, Removal/Installation).
Q.  Install power plant, if removed (Ref Chapter 71, Power Plant).
R.  Adjust and test engine thrust control system for applicable engine (Ref 76-11-0 A/T).
5.  Restore Airplane to Normal Configuration
A.  Install access door No. 6301 or 6401 in wing leading edge above wing-to-engine fairing (Ref Chapter 12, Access Doors and Panels).
B.  Install fixed fairing (Chapter 71, Fixed Fairings).
C.  Install side cowl panels.
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76-11-51 Page 404  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  Oct 20/86 

THRUST REVERSER FOLLOW-UP SHAFT - REMOVAL/INSTALLATION
1. Prepare to Remove Thrust Reverser Follow-up Shaft
A.  Remove the following access door in wing leading edge above wing -to-engine fairing (Ref Chapter 12, Access Doors and Panels).
(1)  
No. 6301 in left wing

(2)  
No. 6401 in right wing

B.  Extend flaps and install leading edge flap locks (Ref 27-81-0 MP).
WARNING:  LEADING EDGE FLAPS ARE FAST ACTING AND CAN CAUSE SERIOUS INJURY TO PERSONNEL.
C.  Clamp appropriate thrust lever against aft stop on control stand.
D.  Clamp appropriate start lever in CUTOFF position.
E.  Gaining access thru extended leading edge flaps, remove turnbuckle-locking clips of two thrust cables and two start cables of applicable engine in wing leading edge. Loosen the four engine control cables using turnbuckles.
2.  Remove Thrust Reverser Follow-up Shaft
A.  Remove four cable end fitting cotter pins (13) from engine start and thrust drums (Fig. 401). Remove and tag cables to identify function and location. Remove cable guards (8) as required to free cables.
543 
Jan 20/82  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  76-11-61 Page 401 

B.  Deleted.
C.  Remove locknut (14) and washer (15) retaining engine start drum (6) on engine start shaft and remove start drum.
D.  Remove cable guard bracket (9) by removing cable guard screws (16), spacers (17), washers
(18) and locknuts (19).
E.  Cut lockwire, and remove nut (46) and washer (45) retaining engine thrust drum (7) on engine thrust shaft and remove thrust drum.
F.  Cut lockwire and remove follow-up shaft upper bearing retaining nut (44) using a spanner wrench.
G.  Remove locknut (31) and washer (30) retaining follow-up crank (29).
H.  Push follow-up crank (29) down off splined portion of thrust reverser follow-up shaft (32) and swing crank out of way.
I.  Remove locknut (43) and washer (42) on top of follow-up shaft (32).
J.  Remove screw (21), spacer (22), and locknut (23) securing directional valve rocker arm (34) to thrust reverser directional valve (20).
K.  Push follow-up shaft up dislodging follow-up shaft upper bearing (41) from seat in support bracket (10). Remove bearing.
L.  Remove three screws (38), washers (26), and locknuts (27) securing cover plate (25) to firewall.
M.  Carefully pull down on follow-up shaft (32). As shaft is cleared, remove spacer (40), thrust reverser follow-up cam (39), spacer (37), and directional valve rocker arm (34) with spacer (35), upper bearing (36) and lower bearing (33). If necessary, partially remove support bracket (10) to facilitate part removal procedures. Do not disconnect hydraulic fittings on the hydraulic directional valve (20).
N.  Lift shaft (32) out from above holding spacers (24A) and (28) and cover plate (25) to prevent parts from falling when cleared by shaft.
O.  Remove follow-up shaft lower bearing (24) from shaft (32).
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3. Install Thrust Reverser Follow-up Shaft
A.  Position spacer (24A), coverplate (25) and spacer (28).
B.  Install thrust reverser follow-up shaft lower bearing (24) on lower end of follow-up shaft (32). Seat bearing against flange on follow-up shaft.
　
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