(3) Visual inspection of the oil cooler. WARNING : USE A PROTECTIVE EYE SHIELD/GOGGLES WHEN YOU USE COMPRESSED
_______ AIR. DEBRIS AND/OR HIGH PRESSURE AIR CAN DAMAGE YOUR EYES.
(a)
Blow excess water out of the cooler matrix with compressed air, use a maximum pressure of 2.0 bar (29.0075 psi)
(b)
Shine a light through the matrix and check that it is clean and free from contamination.
(c)
Repeat the cleaning procedure if required, do not exceed total immersion time of four hours. NOTE: If cooler cannot be cleaned properly, return cooler to workshop.
(4) Drying of the oil cooler. WARNING : USE A PROTECTIVE EYE SHIELD/GOGGLES WHEN YOU USE COMPRESSED
_______ AIR. DEBRIS AND/OR HIGH PRESSURE AIR CAN DAMAGE YOUR EYES.
WARNING : WEAR THERMAL INSULATED GLOVES WHEN HANDLING HEATED OR
_______
CHILLED PARTS TO PREVENT INJURY TO HANDS.
(a)
Remove as much water as possible from the cooler with the
compressed air.
(b)
Remove the blanking plugs from the oil inlet and outlet ports.
(c)
Put the cooler into an oven at the temperature of 121 deg.C
(249.80 deg.F) plus/minus 14 deg.C (57.20 deg.F)
(d)
Leave the cooler in the oven for a minimum of 2 hours or until the cooler is dry
(e)
Remove the cooler from the oven and while still hot, blow
compressed air through it to remove any trapped moisture.
(f)
Repeat the drying process until the cooler is completely dry.
(g)
Install the oil cooler (Ref. TASK 49-91-44-400-001)
5. Close-up
________ Subtask 49-91-44-865-068
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD
Subtask 49-91-44-410-057
B. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s).
COOLER - OIL ((131-9(A))) - CLEANING/PAINTING
_____________________________________________
TASK 49-91-44-100-003
Remove and clean the Air/Oil Cooler and install Air/Oil Cooler (131-9(A))
WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______
WHEN YOU DO THE MAINTENANCE TASK(S).
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.
WARNING : USE A PROTECTIVE EYE SHIELD/GOGGLES WHEN YOU USE COMPRESSED AIR.
_______
DEBRIS AND/OR HIGH PRESSURE AIR CAN DAMAGE YOUR EYES.
CAUTION : PUT PLASTIC CAPS OR PLUGS ON ALL FUEL AND/OR LUBRICATION SYSTEM
_______ COMPONENTS AND LINES. IF YOU USE TAPE, CLOTH, OR METAL CAPS ON THEM, YOU CAN DAMAGE THE APU.
1. Reason for the Job
__________________
R Refer to the MPD TASK: 499100-B3
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plugs
No specific circuit breaker(s) safety clip(s)
No specific warning notice
No specific access platform 3.5 m (11 ft. 6 in.)
R EFF : 001-049, 101-105, 107-107, 151-199, 49-91-44Page 701 201-210, Config-2 Aug 01/05
CES
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 11-013 USA MIL-PRF-85704 COMPRESSOR CLEANING (Ref. 20-31-00) Material No. 11-013A USA MIL-PRF-85704 TYPE II AQUEOUS CLEANING COMPOUND (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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