(a) Repair all the unserviceable wiring and connectors.
(b) Do the tests given in Para. 3.B.
(8) Replace the CTL PNL-REFUEL/DEFUEL (800VU) (Ref. AMM TASK 28-25-55-000-001) and (Ref. AMM TASK 28-25-55-400-001).
(9) If due to airline operational conditions it is not possible to replace the CTL PNL-REFUEL/DEFUEL (800VU) do the internal trouble-shooting as follows:
(a) Do a check of and replace, if necessary:
1 The SW-TEST/LTS/HIGH (2QJ).
_
2 The diode between pins 2 and 1 (part of diode module 4001VD)
_
(b) Do a check of the CTL PNL-REFUEL/DEFUEL (800VU) wiring (Ref. ASM 28-25/03) between the connections and components, as shown in the table that follows:
NOTE : The circuit connections shown in the table are
____ abbreviated, for example:
- the connector 4023VC, pin <B is shown as 4023VC-<B
- the diode module 4001VD, terminal 1 is shown as 4001VD-1
「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 ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page B284
May 01/05R CES
- the terminal block 4001VT, terminal 4J is shown as 4001VT-4J.
-----------------------------------------------------------------------------| CONNECTOR-PIN | COMPONENT TO COMPONENT | CONNECTOR-PIN | |-----------------------------------------------------------------------------| | 4023VC-<B --------------------------------------- 4001VD-1 | | 4001VD-2 ------------------------ 4001VT-4J | | 4001VT-4B ----------------------- 2QJ-3A | | 2QJ-1A -------------------------------------- 4024VC-<J | -----------------------------------------------------------------------------
(c) Repair all the unserviceable wiring and connectors.
(d) Do the tests given in Para. 3.B.
「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 : ALL ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page B285
May 01/05 CES
**ON A/C 301-399,
TASK 28-42-00-810-826
Fuel Quantity - Ultracomp 50QT, Center Tank
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST
_______ EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
1. Possible Causes
_______________
- FQIC (3QT)
- HARNESS-CHAN A, CTR TK (17QT)
- HARNESS-CHAN B, CTR TK (18QT)
- ULTRACOMP-CENTER TANK (50QT)
- aircraft wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ESPM 20-00-00 ESPM 20-52-21 ESPM 20-52-22 AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power AMM 28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank AMM 28-10-00-910-002 Access to the Fuel Tanks and the Work Areas
R AMM 28-42-00-740-003 Interrogation of the FQIS Input Parameters Pages R AMM 28-42-00-740-009 Interrogation of the (SIMMONDS/GOODRICH) FQIS Trouble R Shooting Data
AMM 28-42-34-000-001 Removal of the Fuel Quantity-Indicating Computer (FQIC) (3QT) AMM 28-42-34-400-001 Installation of the Fuel Quantity-Indicating Computer
(FQIC) (3QT)
AMM 28-42-44-000-001 Removal of the Center Tank Harness 17QT
AMM 28-42-44-000-002 Removal of the Center Tank Harness 18QT
AMM 28-42-44-400-001 Installation of the Center Tank Harness 17QT
AMM 28-42-44-400-002 Installation of the Center Tank Harness 18QT
AMM 28-42-47-000-001 Removal of the Ultracomp (50QT)
「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 : 301-399, ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page B286
Aug 01/05 CES
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 28-42-47-400-001 Installation of the Ultracomp (50QT)
AMM 31-32-00-860-001 Procedure to Get Access to the SYSTEM REPORT/TEST
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