- replace the MAN SEL VALVE-FWD CARGO DOOR (2501MJ) (Ref. AMM TASK 52-36-15-000-001) and (Ref. AMM TASK 52-36-15-400-001).

 (2) If the fault continues:

 - replace the ACTUATOR-FWD CARGO DOOR, FWD (2502MJ) and/or the ACTUATOR-FWD CARGO DOOR, AFT (2503MJ) (Ref. AMM TASK 52-36-18-000-001) and (Ref. AMM TASK 52-36-18-400-001).

 (3) If the AFT cargo door does not move:

 - open the FWD cargo door with the hand pump 3009GM (Ref. AMM TASK 52-30-00-860-003).
 (a) If the FWD cargo door opens:
 - do a check for 28 VDC between: the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) connector A/A and A/B (Ref. ASM 52-35/01).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-003, 051-099, 106-149, 151-199, ∞∞52-36-00∞∞∞∞∞∞∞∞∞∞Page 226
 201-299, 301-399, 401-499, Aug 01/05 CES 1 If there is 28 VDC:

_
 - replace the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) (Ref. AMM TASK 52-36-12-000-001) and (Ref. AMM TASK 52-36-12-400-001).
 2 If there is no 28 VDC:
_
 - do a check and repair the wiring between: the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) connector A/B and the GND (Ref. ASM 52-35/01).
 3 If the fault continues:
_
 - do a check for 28 VDC between: the RELAY-TIME (6MJ) connector A/B1 and GND
 4 If there is 28 VDC:
_
 - do a check and repair the wiring between: the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) connector A/B and the RELAY-TIME (6MJ) connector A/B1 (Ref. ASM 52-35/01).
 5 If there is no 28 VDC:
_
 - do a check and repair the wiring between: the RELAY-TIME (6MJ) connector A/B1 and GND (Ref. ASM 52-35/01).
 6 If the fault continues:
_
 - replace the RELAY-TIME (6MJ).
 (b) If the FWD cargo door does not open:
 - replace the CHECK VALVE-DOUBLE (3717GM) (Ref. AMM TASK 52-36-13-000-001) and (Ref. AMM TASK 52-36-13-400-001).
R **ON A/C 004-049, 051-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 B. If the test shows that the FWD cargo door does not close but the ELEC PUMP-Y (3075GX) operates (fault in the door hydraulic system): - operate the Aft cargo door (Ref. AMM TASK 52-30-00-860-001).
 (1) If the AFT cargo door moves:

 - replace the MAN SEL VALVE-FWD CARGO DOOR (2501MJ) (Ref. AMM TASK 52-36-15-000-001) and (Ref. AMM TASK 52-36-15-400-001).

 (2) If the fault continues:

 - replace the ACTUATOR-FWD CARGO DOOR, FWD (2502MJ) and/or the ACTUATOR-FWD CARGO DOOR, AFT (2503MJ) (Ref. AMM TASK 52-36-18-000-001) and (Ref. AMM TASK 52-36-18-400-001).

 (3) If the AFT cargo door does not move:

 - open the FWD cargo door with the hand pump 3009GM (Ref. AMM TASK 52-30-00-860-003).
 (a) If the FWD cargo door opens:
 - do a check for 28 VDC between: the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) connector A/A and A/B (Ref. ASM 52-35/01).
 1 If there is 28 VDC:
_
 - replace the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) (Ref. AMM TASK 52-36-12-000-001) and (Ref. AMM TASK 52-36-12-400-001).
 2 If there is no 28 VDC:
_
 - do a check and repair the wiring between: the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) connector A/A and GND (Ref. ASM 52-35/01),
 3 If the fault continues:
_
 - do a check for 28 VDC between: the RELAY-TIME (6MJ) connector A/B1 and GND (Ref. ASM 52-35/01),
 4 If there is 28 VDC:
_
 - do a check and repair the wiring between: the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) connector A/B and the RELAY (13MJ) connector A/B3 (Ref. ASM 52-35/01), the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) connector A/B and the RELAY (14MJ) connector A/B3 (Ref. ASM 52-35/01), the RELAY (13MJ) connectoe A/B2 and the CB (1MJ) (Ref. ASM 52-35/01), the RELAY (14MJ) connectoe A/B2 and the CB (1MJ) (Ref. ASM 52-35/01).
 5 If there is no 28 VDC:
_
 - do a check and repair the wiring between: the SEL VALVE-CARGO DOORS ELEC/MAN CTL (2500MJ) connector A/A and GND (Ref. ASM 52-35/01),
 6 If the fault continues:
_
 - replace the RELAY-TIME (6MJ).
 (b) If the FWD cargo door does not open:
 - replace the CHECK VALVE-DOUBLE (3717GM) (Ref. AMM TASK 52-36-13-000-001) and (Ref. AMM TASK 52-36-13-400-001).
 **ON A/C ALL
 C. Do the test as given in Para. 3.A. to make sure that 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 ∞∞52-36-00∞∞∞∞∞∞∞∞∞∞Page 228
 May 01/01R CES
　
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