R a_ If there is a GND connection:
R - repair the wiring as necessary.

R (2) If the ELEC PUMP-B (2075GJ) does not operate:
R - do a check of the red indicator light on the DET-PHASE UNBALANCE, B
R ELEC PUMP (2707GJ).

R (a) If the red indicator light is on:

R WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL

_______ R SURFACES ARE CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A R HYDRAULIC SYSTEM.
R - put the BLUE ELEC PUMP P/BSW (2704GJ) on panel 40VU in the OFF
R position ( OFF light is on and the red indicator light on the
R DET-PHASE UNBALANCE, B ELEC PUMP (2707GJ) goes off),
R - put the BLUE ELEC PUMP P/BSW (2704GJ) in the AUTO position (OFF
R light goes off),
R - put the BLUE PUMP OVRD P/BSW (2703GJ) on panel 50VU in the ON
R postion
R - look on the SD - DU and examine if the ELEC PUMP-B (2075GJ)
R operates:

R 1_ If the ELEC PUMP-B (2075GJ) does not operate and the red
R indicator light DET-PHASE UNBALANCE, B ELEC PUMP (2707GJ)
R comes on again:
R - replace the ELEC PUMP-B (2075GJ) (Ref. AMM TASK 29-12-51-R 000-001) and (Ref. AMM TASK 29-12-51-400-001).

R NOTE : Replace the ELEC PUMP-B (2075GJ) with the ELEC PUMP-Y

____ R (3075GX) which is interchangeable, if a new pump is not R available (Ref. AMM TASK 29-24-51-000-001) and (Ref. R AMM TASK 29-24-51-400-001).
R 2_ If the ELEC PUMP-B (2075GJ) operates at normal pressure and
R the red indicator light on the DET-PHASE UNBALANCE, B ELEC
R PUMP (2707GJ) does not come on:
R - no further actions are necessary.

 「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 ∞∞29-12-00∞∞∞∞∞∞∞∞∞∞Page 224
 May 01/05 CES

R  (b) If the red indicator light is not on: 
R  - do a check for 115VAC between: 
R  the ELEC PUMP-B (2075GJ) connectors A/G and A/A, A/B, A/C. 
R  1_  If there are 115VAC:
R  - replace the ELEC PUMP-B (2075GJ) (Ref. AMM TASK 29-12-51-
R  000-001) and (Ref. AMM TASK 29-12-51-400-001). 
R  NOTE : Replace the ELEC PUMP-B (2075GJ) with the ELEC PUMP-Y____ 
R  (3075GX) which is interchangeable, if a new pump is not 
R  available (Ref. AMM TASK 29-24-51-000-001) and (Ref. 
R  AMM TASK 29-24-51-400-001). 
R  2_  If there are no 115VAC:
R  - do a check for 28VDC between the DET-PHASE UNBALANCE, B ELEC 
R  PUMP (2707GJ) connectors A/G and A/F. 
R  a_  If there are 28VDC:
R  - replace the CT-B ELEC PUMP (2706GJ) (Ref. AMM TASK 29-12-
R  15-000-001) and (Ref. AMM TASK 29-12-15-400-001). 
R  b_  If the fault continues:
R  - replace the DET-PHASE UNBALANCE, B ELEC PUMP (2707GJ) 
R  (Ref. AMM TASK 29-12-18-000-001) and (Ref. AMM TASK 29-
R  12-18-400-001). 
R  c_  If the fault continues:
R  - do a check of the wiring between: 
R  ELEC PUMP-B (2075GJ) connectors A/A, A/B and A/C and CB 
R  (2701GJ) and repair as necessary. 
R  d_  If there are no 28VDC:
R  - do a check of the wiring between: DET-PHASE UNBALANCE, B 
R  ELEC PUMP (2707GJ) connector A/F and CB (2702GJ) and 
R  repair as necessary. 
R
 B. If the HYD B ELEC PUMP LO PRESS warning was shown for a short time during
 the fault confirmation with engines running:
 - Replace the RELAY-N2 SPEED CONDTN (2709GJ).
 C. Do the test as given in Para. 3. A. or 3. B. to make sure that 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 ∞∞29-12-00∞∞∞∞∞∞∞∞∞∞Page 225
 May 01/05 CES

 TASK 29-12-00-810-805

 Loss of the System Pressure of the Blue Hydraulic System
 1. Possible Causes
_______________

 - PRESS SW-FLT CTL, B (2151GN)

 - SOL VALVE-LEAKAGE MEAS, B (2150GP)

 - pushbutton switch 1884GP

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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