(2)
Put blanking caps on the disconnected electrical connectors.
(3)
Remove the bolts (3) and the washers (2). NOTE : The power supply unit has two location pins. They locate in
Power Supply Unit
Figure 401/TASK 33-48-38-991-001
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____ the location pin sockets of the wing tip.
(4) Carefully remove the power supply unit (4).
TASK 33-48-38-400-001
Installation of the Power Supply Unit 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 circuit breaker(s) safety clip(s)
No specific safety barriers
No specific warning notice
No specific access platform 4 m (13 ft. 1 in.)
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 -------------------------------------------------------------------------------
20-28-00-912-004 Bonding with Conductive Bolts and Screws and Bonding Straps in the Fuselage and in the Wings (this does not include the tanks)
33-48-00-710-002 Operational Test of the Anti-Collision/Strobe Lighting 33-48-38-991-001 Fig. 401
3. Job Set-up
__________ Subtask 33-48-38-941-053
A. Safety Precautions
(1)
Make sure that the safety barriers are in position.
(2)
Make sure that the warning notice in on panel 25VU to tell persons not to operate the strobe lights or the navigation lights.
Subtask 33-48-38-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
122VU LIGHTING/WING/STROBE 10LV V05
Subtask 33-48-38-860-050
C. Aircraft Maintenance Configuration
(1)
Make sure that the access platform is position below the applicable power suppply unit.
(2)
Make sure that the access panels 534AB (634AB) are removed.
4. Procedure
_________
(Ref. Fig. 401/TASK 33-48-38-991-001)
Subtask 33-48-38-420-051
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.
(1)
Clean the component interface and/or the adjacent area with a clean MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-004).
(2)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(3)
Do an inspection of the component interface and/or the adjacent area.
Subtask 33-48-38-420-050
B. Installation of the Power Supply Unit
(1)
Carefully install the power supply unit (4), and make sure that the location pins are correctly engaged in their sockets.
(2)
Attach the power supply unit (4) with the bolts (3) and the washers (2).
(3)
Electrically bond the applicable bolt (3) (Ref. TASK 20-28-00-912-004):
-
for the left wing bond the inboard bolt (3)
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