TASK 52-36-00-810-804

 Fault during the Closing Procedure of the AFT Cargo-Compartment Door
 1. Possible Causes
_______________
 - ELEC PUMP-Y (3075GX)

 - RELAY-TIME (6MJ)

 - RELAY-L/G POSITION, SYS 2 (12GB)

 - LGCIU-2 (5GA2)

 - MAN SEL VALVE-AFT CARGO DOOR (2504MJ)

 - SW-LOCKING SHAFT (12MJ)

 - ACTUATOR-AFT CARGO DOOR, FWD (2505MJ)

 - ACTUATOR-AFT CARGO DOOR, AFT (2506MJ)

 - SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ)

 - wiring

 - CB (1MJ)

 - CHECK VALVE-DOUBLE (3717GM)

 - RELAY (13MJ)

 - RELAY (14MJ)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
32-31-00-810-802 LGCIU Fault 32-31-00-810-835 Cargo Door (Aft) Lockshaft Proximity Sensor Fault
 (12MJ) ASM 523501S01 AMM 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the
 Yellow Electric Pump AMM 52-30-00-860-003 Open the FWD or AFT Cargo-Compartment Door with the Hand Pump
R  AMM 52-35-13-400-002 Installation of the Proximity Switches 5MJ and 12MJ AMM 52-36-12-000-001 Removal of the Electro-Manual Selector Valve 2500MJ AMM 52-36-12-400-001 Installation of the Electro-Manual Selector Valve
 2500MJ AMM 52-36-13-000-001 Removal of Double Check Valve 3717GM AMM 52-36-13-400-001 Installation of Double Check Valve 3717GM AMM 52-36-15-000-001 Removal of the Manual Selector Valve 2501MJ/2504MJ AMM 52-36-15-400-001 Installation of the Manual Selector Valve
 2501MJ/2504MJ
 AMM 52-36-18-000-001 Removal of the Door Actuator
 2502MJ/2503MJ/2505MJ/2506MJ
 AMM 52-36-18-400-001 Installation of the Door Actuator
 2502MJ/2503MJ/2505MJ/2506MJ
 ASM 52-35/01

 「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 ∞∞52-36-00∞∞∞∞∞∞∞∞∞∞Page 229
 May 01/01 CES 3. Fault Confirmation

__________________
 A. Aircraft Maintenance Configuration
 (1) Close the AFT cargo compartment door (referred to as cargo door) in the normal mode (Ref. AMM TASK 52-30-00-860-001).
 NOTE : Make sure that a second person does not operate the FWD cargo
____
 door.

 (2) Close the FWD cargo door in the normal mode (Ref. AMM TASK 52-30-00-860-001).
 NOTE : Make sure that a second person does not operate the AFT cargo
____
 door.

 4. Fault Isolation
_______________
R **ON A/C 001-049, 101-105,
 A. If the fault confirmation gives that only the AFT cargo door does not close and the ELEC PUMP-Y (3075GX) does not operate (fault in the door control system):
 - do a check for 28 VDC between: the RELAY-TIME (6MJ) connector A/B1 and GND (Ref. ASM 52-35/01).
 NOTE : Make sure that the selector of the manual selector valve 2504MJ is
____ set to CLOSE during the fault isolation procedure.
 (1) If there is no 28 VDC:
 - do a check for 28 VDC between the RELAY-TIME (6MJ) connector A/C1 and GND (Ref. ASM 52-35/01).
 (a) If there is 28 VDC:
 - do a check for 28 VDC between the RELAY-TIME (6MJ) connector A/X1 and GND (Ref. ASM 52-35/01).
 1 If there is no 28 VDC:
_
 - do a check and repair the wiring as necessary betwen: the RELAY-TIME (6MJ) connector A/X1 and the CB (1MJ) (Ref. ASM 52-35/01).
 2 If there is 28 VDC:
_
 - replace the RELAY-TIME (6MJ).
 (b) If there is no 28 VDC:
 - do a check for 28 VDC between: the RELAY-L/G POSITION, SYS 2 (12GB) connector A/D1 and GND (Ref. ASM 52-35/01).
 「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 ∞∞52-36-00∞∞∞∞∞∞∞∞∞∞Page 230
 May 01/05 CES 1 If there is 28 VDC:

_
 - do a check for continuity between: the RELAY-L/G POSITION, SYS 2 (12GB) connector A/D1 and A/D2 (Ref. ASM 52-35/01).
 2 If there is continuity:
_
 - do a check and repair the wiring as necessary between: the RELAY-TIME (6MJ) connector A/C1 and the RELAY-L/G POSITION, SYS 2 (12GB) connector A/D2 (Ref. ASM 52-35/01).
 3 If there is no continuity:
_
 - replace the RELAY-L/G POSITION, SYS 2 (12GB)
 4 If there is no 28 VDC:
_
 - do a check and repair the wiring as necessary between: the RELAY-L/G POSITION, SYS 2 (12GB) connector A/D1 and the LGCIU-2 (5GA2) connector AA/8A (Ref. ASM 52-35/01).
　
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