STOP AND GEARSET UNIT - PITCH TRIM CONTROL - REMOVAL/INSTALLATION
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TASK 27-41-43-000-001
Removal of the Pitch Trim Control Stop and Gearset Unit
1. Reason for the Job
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Self Explanatory
2. Job Set-up Information
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A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific standard locking bolt
No specific access platform 1.5 m (4 ft. 11 in.)
0U190360 1 PIN - RIGGING
98D27403000000 1 HOLDING TOOL-TRIM CTL LOWER SHAFT
98D27403500000 1 PITCH TRIM CONTROL LOCKING
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
23-13-13-000-001 Removal of the Radio Management Panel (CRMP) (1RG1, 1RG2, 1RG3) 23-51-12-000-001 Removal of the Audio Control Panel (ACP) (2RN1, 2RN2, 2RN3, 2RN4, 2RN5) R 27-41-00-820-002 Adjustment of the THS Control-Cables Length 29-24-00-863-001 Pressurize the Yellow Hydraulic System with the
Electric Pump
29-24-00-864-001 Depressurize the Yellow Hydraulic System
34-41-12-000-001 Removal of the Weather Radar Control Unit (3SQ)
27-41-43-991-002 Fig. 401
3. Job Set-up
__________ Subtask 27-41-43-010-055
A. Get Access
(1) Put the access platform in position at zone 121.
(2) Open the access door 811. Subtask 27-41-43-860-050
B. Aircraft Maintenance Configuration
(1)
Pressurize the Yellow hydraulic system (Ref. TASK 29-24-00-863-001).
(2)
On the center pedestal, make sure that the pitch-trim control wheels are in the neutral position.
(3)
Install the PITCH TRIM CONTROL LOCKING (98D27403500000) on the pitch-trim control wheels.
(4)
Put the PIN - RIGGING (0U190360) on the imput lever of the THS actuator.
(5)
Adjust the cable length by rigging one turnbuckle in one direction and readjusting the other turnbuckle on the opposite direction in order to maintain the cable tension.
(6)
Check the cable tension on the cable tension compensator indicator (Ref. TASK 27-41-00-820-002).
(7)
Remove the PIN - RIGGING (0U190360) on the THS actuator mechanical imput.
(8)
Check the spring back on the nose up and nose down THS control wheel positions.
(9)
Depressurize the Yellow hydraulic system (Ref. TASK 29-24-00-864-001).
(10)
Install the HOLDING TOOL-TRIM CTL LOWER SHAFT (98D27403000000) on the drive shaft (23).
(11)
Install the standard locking bolt on the chain (1).
1EFF : ALL 1 27-41-43Page 402 1 1 May 01/00R 1 1 1CES 1
R R R R (12) Remove the radio management panel (1RG1) (Ref. TASK 23-13-13-000-001), the audio control panel (2RN1) (Ref. TASK 23-51-12-000-001), the panel 111VU and the weather radar control unit (Ref. TASK 34-41-12-000-001).
4. Procedure_________
(Ref. Fig. 401/TASK 27-41-43-991-002)
Subtask 27-41-43-020-050
A. Removal of the Stop and Gearset Unit
R (1) Remove the lateral panel to get access to the chain
R (2) Remove and discard the locwire from the nut (27) and the srew (28).
R (3) Loosen the nut (27).
R (4) Loosen the srew (28) to release the chain tension adjuster (26).
R (5) Remove and discard the cotter pins (8), remove the nuts (9) and the washers (7).
R (6) Remove the screws (3) and remove the cover (4).
R (7) Remove and discard the cotter pins (17), remove the nuts (18), the washers (16) and the screws (11).
R (8) Remove and discard the cotter pin (13), remove the nut (14), the washer (15) and the tapered pin (19).
R (9) Remove and discard the five nuts (6), remove the four screws (10) and the screw (21). Release the chain (22) from the gear (2), remove the stop unit (5) and the yoke (12).
R R Pitch Trim Control Stop and Gearset Unit Figure 401/TASK 27-41-43-991-002- 12 (SHEET 1)
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R R Pitch Trim Control Stop and Gearset Unit Figure 401/TASK 27-41-43-991-002- 22 (SHEET 2) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM FLIGHT CONTROLS 飞行操纵3(113)
