- do a check of the lube supply and common scavenge filters clogging indicators (Ref. AMM TASK 79-00-00-281-003).
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ER (2) Remove and replace the main oil supply filter (Ref. AMM TASK 79-21-R 10-920-002).
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(3) If the fault continues:
- replace the SW-OIL FILTER DIFF PRESS (4001EN) (Ref. AMM TASK 79-35-15-000-003) and (Ref. AMM TASK 79-35-15-400-003).
(4) If the fault continues:
(a) Do a check of the aircraft wiring between the oil filter differential pressure switch (4001EN) and SDAC1/SDAC2 for short to ground:
- repair or replace the wiring as required.
B. Do a minimum idle leak check (Ref. AMM TASK 71-00-00-710-006).
(1) No additional maintenance action is required if the fault is not confirmed.
(2) Repeat the fault isolation procedure if the fault continues.
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TASK 79-00-00-810-823
Oil Pressure Difference between Engine 1 and Engine 2
1. Possible Causes
_______________
- engine
- XMTR-OIL PRESS (4003EN)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 71-00-00-000-042 Removal of the Power Plant AMM 71-00-00-400-042 Installation of the Power Plant AMM 72-56-00-000-001 Removal of the Flame Arrestor and Flange Assembly AMM 72-56-00-400-001 Installation of the Flame Arrestor and Flange
Assembly AMM 79-00-00-210-002 Walk-around Inspection AMM 79-00-00-210-003 Visual Inspection of the Oil System AMM 79-00-00-281-002 Check of the Electrical Master Chip Detector for
Particles AMM 79-00-00-281-003 Check of FWD, AFT Sump, AGB, and TGB scavenge screens AMM 79-21-10-000-004 Removal of the Lubrication Unit AMM 79-21-10-400-004 Installation of the Lubrication Unit AMM 79-33-15-000-041 Removal of the Oil Pressure Transmitter (4003EN) AMM 79-33-15-400-041 Installation of the Oil Pressure Transmitter (4003EN) AMM 79-35-00-040-042 Replacement of the Main Oil Supply Filter and Check
of the Electrical Chip Detector Visual Indicator (pop-out)
3. Fault Confirmation
__________________
A. Test
(1) Not applicable.
4. Fault Isolation
_______________
A. If the fault symptom is identified by the crew observation OIL pressure higher or lower than on the other engine:
R NOTE : Refer to CFM SB 79-021 covering HTS Oil coking issues. Trend
____ R instructions to monitor oil pressure trend and implement R Inspection and Cleaning procedures if necessary.
- do a check of the electric master magnetic chip detector visual indicator (Ref. AMM TASK 79-35-00-040-042) and the magnetic chip
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E detector (Ref. AMM TASK 79-00-00-281-002) and the scavenge screen plugs (Ref. AMM TASK 79-00-00-281-003).
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(1) If you find magnetic particles:
- follow the related instructions per (Ref. AMM TASK 79-00-00-281-002) and NDT Manual (section CHIP ANALYSIS).
(2) If nothing is found:
- do a visual check for external leaks (Ref. AMM TASK 79-00-00-210-002).
(a) If there is sign of heavy oil discharge in the center vent tube:
- replace the engine (Ref. AMM TASK 71-00-00-000-042) and (Ref. AMM TASK 71-00-00-400-042).
(b) If nothing is found:
- do a check of the flame arrestor for clogging:
1_ If confirmed:
- clean or replace as required (Ref. AMM TASK 72-56-00-000-
001) and (Ref. AMM TASK 72-56-00-400-001).
2 If nothing is found:
_
- do a check for the oil scavenge line for blockage (Ref. AMM TASK 79-00-00-210-003).
a If nothing if found:
_
- replace the XMTR-OIL PRESS (4003EN) (Ref. AMM TASK 79-33-15-000-041) and (Ref. AMM TASK 79-33-15-400-041).
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 OIL 滑油(14)
