_______ ON THE ELECTRICAL CABLE. THIS WILL PREVENT DAMAGE TO THE ELECTRICAL CABLE.

 (2)
 Pull the preselector (2) from the mounting frame.

 1EFF : ALL 1 28-42-21Page 402 1 1 May 01/04 1 1 1CES 1

R R  Fuel Quantity Preselector 5QT Figure 401/TASK 28-42-21-991-001-A
 1EFF : 1 1 1CES  ALL  1 111 28-42-21 Page 403 Nov 01/99

 (3)
 Disconnect the electrical plug (1).

 (4)
 Remove the preselector (2).

 (5)
 Put blanking caps on the disconnected electrical connectors.

 1EFF : ALL 1 28-42-21Page 404 1 1 May 01/04R 1 1 1CES 1

 TASK 28-42-21-400-001
 Installation of the Fuel Quantity Preselector 5QT
 WARNING : MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING

_______
 NOTICES ARE IN POSITION.

 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
 GEAR.

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  safety barriers
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 11-004  USA MIL-T-81533
 1.1.1TRICHLOROETHANE (METHYL CHLOROFORM)
 (Ref. 20-31-00)

 Material No. 19-003  USA AMS 3819
 LINT-FREE COTTON CLOTH (Ref. 20-31-00)

 C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-42-00-710-001  Operational Test of the Fuel Quantity Indicating-System 28-42-00-740-001 Status Report (BITE) R 28-42-21-991-001-A Fig. 401
 1EFF : ALL 1 28-42-21Page 405 1 1 Nov 01/99 1 1 1CES 1

 3. Job Set-up
__________ R (Ref. Fig. 401/TASK 28-42-21-991-001-A) Subtask 28-42-21-941-053
 A. Safety Precautions
 (1)
 Make sure that the safety barriers are in position.
 Subtask 28-42-21-860-050

 B. Aircraft Maintenance Configuration

 (1)
 Make sure that the access panel 192MB is open.
 Subtask 28-42-21-865-051

 C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU FUEL/FQI/CHAN/1 1QT A13 121VU FUEL/FQI/CHANNEL/1 AND 2 8QT L26 121VU FUEL/FQI/CHAN/2 2QT M27
 4. Procedure
_________ R (Ref. Fig. 401/TASK 28-42-21-991-001-A) Subtask 28-42-21-420-052
 A. Preparation for Installation WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
 1EFF : ALL 1 28-42-21Page 406 1 1 Nov 01/99 1 1 1CES 1

 (1)
 Clean the component interfaces and the adjacent areas with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-004).

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 Subtask 28-42-21-420-050
 B. Installation of the Fuel Quantity Preselector 5QT
 (1)
 Remove the blanking caps from the electrical connections. CAUTION : DO NOT PULL THE PRESELECTOR TOO FAR AND DO NOT LET IT HANG

_______ ON THE ELECTRICAL CABLE. THIS WILL PREVENT DAMAGE TO THE ELECTRICAL CABLE.

 (2)
 Connect the electrical plug (1).

 (3)
 Install the preselector (2) in the mounting frame. Make sure the spigot on the preselector engages correctly in the backplate.

 (4) Tighten the two quick-release fasteners (3). Subtask 28-42-21-865-052
 C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1QT, 2QT, 8QT.
　
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