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28- Locking pin
29- Threaded end
30- Stud
31- Immobilization tool
32- Cable clamp
B35 pitch servo actuator — Removal / Installation
Key to Figure 402
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B35 pitch servo actuator — Removal / Installation
Figure 402
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B35 PITCH SERVO ACTUATOR
ADJUSTMENT / TEST
1. CABLE TENSION ADJUSTMENT (Figure 501)
A. Tools and consumable materials
- Tensiometer P/N Z0O.N6068707229
- Immobilization tool P/N T700A2799000009
B. Procedure
1) Make sure that the main switch-breaker is open.
2) Install the warning sign prohibiting main switch-breaker operation.
WARNING
DO NOT OPERATE
MAINTENANCE WORK IN PROGRESS
3) Open "AP CMPTR" and "AP SERVOS" circuit breakers located on the circuit breaker panel.
4) Open baggage compartment door 219 and remove compartment bottom door 242.
5) Remove and discard locking pins (1) of turnbuckle barrel (2).
6) Set the elevator control to neutral position.
7) With the tensiometer, make sure that cable tension is 20 ± 5 lbs (88.9 ± 22.2 N).
8) If cable tension is incorrect, perform following operations :
a) Position immobilization tool (4) and screw or unscrew turnbuckle barrel (2) to modify cable tension.
b) Set the elevator control successively to "nose-down", "nose-up" and then to neutral position.
c) Check cable tension and repeat steps a) thru c) until you obtain the correct tension.
9) Install new locking pins (1) on the turnbuckle barrel.
10) Make sure all the tools and materials are removed and the work area is clean and free from debris.
11) Install compartment bottom door 242 and close baggage compartment door 219.
12) Close "AP CMPTR" and "AP SERVOS" circuit breakers.
13) Remove the warning sign prohibiting main switch-breaker operation.
1 - Locking pin
2 - Turnbuckle barrel
3 - B35 pitch servo actuator
4 - Immobilization tool
AV - FWD
B35 pitch servo actuator — Cable tension adjustment
Figure 501
B38 PITCH TRIM SERVO ACTUATOR
REMOVAL / INSTALLATION
1. REMOVAL OF B38 PITCH TRIM SERVO ACTUATOR (Figure 401)
NOTE : The removal of B38 pitch servo actuator alone does not require the removal of the mounting plate.
A. Tools and consumable material
- Blanking plug
B. Procedure
1) Make sure that the main switch-breaker is open.
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本文链接地址：
TB20 MAINTENANCE MANUAL 22 AUTO FLIGHT TB20飞机维护手册 22 自动飞行(51)
