R 34-13-00-710-007 Operational Test of the Overspeed Warnings in the R Slats/Flaps and Landing Gear Extended (VFE/VLE) R Configuration
27-85-11-991-001 Fig. 401
3. Job Set-up
__________
Subtask 27-85-11-860-051
A. Aircraft Maintenance Configuration
(1)
Make sure that the main doors of the main gear are open (Ref. TASK 32-12-00-010-001).
(2)
Make sure that the access platform is in position at the opening of the main door of the main gear.
(3)
Make sure that the slats are in the retracted position (Ref. TASK 27-80-00-866-005) because a new IPPU is delivered locked in its zero position.
Subtask 27-85-11-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/SLT FLP/POS/IND 1 1CN B12 49VU FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 5CV B06 121VU FLIGHT CONTROLS/SLT FLP/POS/IND2 2CN P16 121VU FLIGHT CONTROLS/SLT/CTL/SYS2 7CV R21
4. Procedure
_________
(Ref. Fig. 401/TASK 27-85-11-991-001) Subtask 27-85-11-860-052
A. Preparation for Installation
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Remove the sealing compound from the flange of the replacement IPPU.
(4)
Clean the anodic contact areas on the IPPU and the gearbox.
(5)
Coat the areas with a mixture of SPECIAL MATERIALS (Material No. 05-002) and SPECIAL MATERIALS (Material No. 05-054) in the ratio of 58 to 42 by weight.
(6)
Apply SPECIAL MATERIALS (Material No. 05-002) to the threads of the screws (1).
Subtask 27-85-11-420-050
B. Installation of the Instrumentation Position Pick-Off Unit
(1)
Make sure that all zero marks on the IPPU are aligned.
(2)
Remove the tie-wrap (3).
(3)
Install the IPPU carefully on the gearbox.
(4)
Install the screws (1) and the washers (2).
(5)
TORQUE the screws (1) to between 0.87 and 0.96 m.daN (76.99 and 84.95 lbf.in).
R R R (6) Do a bonding test between the main bonding point of the power control unit and the IPPU flange. The resistance must not be more than 20 milliohms.
R (7) Remove the blanking caps from the electrical connectors.
R (8) Make sure that the electrical connectors are clean and in the correct condition.
R (9) Connect the electrical connectors 4CN-A and 4CN-B to the IPPU.
Subtask 27-85-11-865-052
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 5CV, 7CV, 1CN, 2CN.
Subtask 27-85-11-710-050
D. Operational Tests
(1) Do the operational test of the slat system (Ref. TASK 27-84-00-710-001).
(2) Do the operational test of the overspeed warnings in the slats/flaps and landing gear extended (VFE/VLE) configuration (Ref. TASK 34-13-00-710-007).
5. Close-up________
Subtask 27-85-11-410-050
A. Close Access
(1) Remove the access platform(s).
(2) Make sure that the work area is clean and clear of tool(s) and other items.
(3) Close the main doors of the main gear (Ref. TASK 32-12-00-410-001).
ELECTRICAL FLIGHT CONTROL SYSTEM (EFCS) - DESCRIPTION AND OPERATION
___________________________________________________________________
1. General
_______
**ON A/C 001-049, 051-099, 101-149, 201-299,
(Ref. Fig. 001)
R **ON A/C 151-199, 401-499,
(Ref. Fig. 001A)
**ON A/C 301-399,
(Ref. Fig. 001B)
**ON A/C ALL
The electrical flight control system (EFCS) is built around two types of digital computers :
-2 ELACs (Elevator and Aileron Computers).
-3 SECs (Spoiler and Elevator Computers). 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8(163)
