R (3) If at the start of the second engine, the PTU does not start (for the
R auto test of the PTU), then replace:
R - the RELAY-ENG/MASTER 1 (11QG), if the second engine started was the
R engine 1 (Ref. ASM 29-23/01)
R or
R - the RELAY-ENG/MASTER 2 (12QG), if the second engine started was the
R engine 2 (Ref. ASM 29-23/01).
R (4) If at the start of the first engine, the PTU starts and stays running
R at the start of the second engine:
R (a) do a check of the circuit breaker HYDRAULIC/SOL VALVES/G/Y/PTU
R (1801GL). Replace the circuit breaker HYDRAULIC/SOL
R VALVES/G/Y/PTU (1801GL) as necessary (Ref. ASM 29-23/01).
R (b) If the fault continues:
R - do a check of the RELAY-LDG CTL (1805GL). Replace the RELAY-LDG
R CTL (1805GL) as necessary (Ref. ASM 29-23/01).
R (c) If the fault continues:
R - do a check of the RELAY-N/W STRG DE-ACT (1806GL), if the nose
R wheel steering system was deactivated during the engine start.
R Replace the RELAY-N/W STRG DE-ACT (1806GL) as necessary (Ref.
R ASM 29-23/01).
R (d) If the fault continues:
R - do a check of the RELAY-PARK BRAKE CTL (1804GL), if the parking
R brake was set to ON during the engine start. Replace the
R RELAY-PARK BRAKE CTL (1804GL) as necessary (Ref. ASM 29-23/01).
R (e) If the fault continues:
R - do a check of the RELAY-ENG/MASTER 1 (11QG) and
R RELAY-ENG/MASTER 2 (12QG). Replace the RELAY-ENG/MASTER 1
R (11QG) and/or RELAY-ENG/MASTER 2 (12QG) as necessary (Ref. ASM
R 29-23/01).
R (f) If the fault continues:
R 1_ do a check of the wiring between the circuit breaker
R HYDRAULIC/SOL VALVES/G/Y/PTU (1801GL) and the SOL VALVE-PTU, G
R (1012GL) connector A/B (Ref. ASM 29-23/01). Repair the wiring
R as necessary.
R 2_ do a check of the wiring between the circuit breakerR HYDRAULIC/SOL VALVES/G/Y/PTU (1801GL) and the SOL VALVE-PTU, Y R (3012GL) connector A/B (Ref. ASM 29-23/01). Repair the wiring R as necessary.
R (g) If the fault continues:
R 1_ do a check of the wiring that energizes these relays (Ref. ASMR 29-23/01):
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞29-23-00∞∞∞∞∞∞∞∞∞∞Page 228
May 01/04 CES
R - RELAY-ENG/MASTER 1 (11QG)
R - RELAY-ENG/MASTER 2 (12QG)
R - RELAY-PARK BRAKE CTL (1804GL)
R - RELAY-LDG CTL (1805GL)
R - RELAY-N/W STRG DE-ACT (1806GL).
R 2_ Repair the wiring as necessary.
R B. Do the fault confirmation procedure as given in Para. 3 to make sure that
R the operation is correct.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞29-23-00∞∞∞∞∞∞∞∞∞∞Page 229
May 01/04 CES
YELLOW AUXILIARY HYDRAULIC POWER (ELECTRIC/HAND PUMPS)
______________________________________________________ FAULT ISOLATION PROCEDURES
__________________________
TASK 29-24-00-810-801
R Loss or Fluctuation of the Pressure of the Yellow Electric Pump
1. Possible Causes
_______________
- ELEC PUMP-Y (3075GX)
- ACCU-Y PWR (3070GM) R - CHECK VALVE-ENG 2 PUMP DELIVERY, Y (3050GM)
- PRESS SW-FLT CTL, Y (3151GN)
- DET-PHASE UNBALANCE, Y ELEC PUMP (3808GX)
- CT-Y ELEC PUMP (3807GX)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 29-10-00-200-008 Check Nitrogen Charge Pressure on Hydraulic Power
Accumulators R AMM 29-13-36-000-001 Removal of the Engine 2 Yellow Hydraulic Pump R Delivery Check Valve (3050GM). R AMM 29-13-36-400-001 Installation of the Engine 2 Yellow Hydraulic Pump R Delivery Check Valve (3050GM).
AMM 29-13-42-000-001 Removal of the Yellow Power Accumulator
AMM 29-13-42-400-001 Installation of the Yellow Power Accumulator
AMM 29-24-00-710-001 Operational Test of the Yellow Auxiliary Power
AMM 29-24-15-000-001 Removal of the Yellow Electric Pump Current
Transformer (3807GX) AMM 29-24-15-400-001 Installation of the Yellow Electric Pump Current Transformer (3807GX) AMM 29-24-16-000-001 Removal of the Yellow Electric Pump Phase-Unbalance Detector (3808GX) AMM 29-24-16-400-001 Installation of the Yellow Electric Pump 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 液压(95)
