CAUTION
DO NOT USE WATER TO REMOVE THE DRY CHEMICAL FIRE
EXTINGUISHING AGENTS FROM THE ENGINE. IF YOU USE WATER TO
REMOVE THE DRY CHEMICAL FIRE EXTINGUISHING AGENTS, IT CAN
CAUSE DAMAGE TO ENGINE PARTS.
(a) Use engine vacuum cleaner, STD-6636 and regulated air source, STD-12857 at 30-40
psi (207-276 KPa) as needed to remove all the loose powder from the engine.
(b) If the dry chemical powder has become a glaze, do the steps that follow:
WARNING
DO NOT GET CLEANING SOLUTIONS IN YOUR MOUTH, EYES, OR
ON YOUR SKIN. DO NOT BREATHE THE FUMES. PUT ON A
PROTECTIVE SPLASH GOGGLE AND GLOVES WHEN YOU CLEAN.
KEEP CLEANING SOLUTIONS AWAY FROM SPARKS, FLAMES, AND
HEAT. CLEANING SOLUTIONS ARE POISONOUS AND FLAMMABLE,
AND CAN CAUSE INJURY TO PERSONS.
1) Prepare a cleaning mixture with 60 percent alcohol, B00679 [C04-035] and 40
percent alcohol, B00342.
2) Clean with a brush or Scotch-Brite 7447 pad, G02348 [C10-010] until all the glaze is
removed.
3) Steam clean to remove all the cleaning mixture.
END OF TASK
TASK 72-00-00-127-036-G00
5. How to Clean the Engine with Coke
(Figure 704)
A. General
(1) This procedure removes contamination collected through time from the engine fan blades.
While the engine is in operation, coke is sprayed from a grit blast machine onto the engine fan
blades.
(2) Three persons are needed for this procedure. One person will operate the grit blast machine,
one person will operate the airplane controls, and one person will monitor the procedure.
B. References
Reference Title
36-11-00 P/B 501 AIR SUPPLY DISTRIBUTION SYSTEM - ADJUSTMENT/TEST
71-00-00 P/B 201 POWER PLANT (OPERATING PROCEDURES) -
MAINTENANCE PRACTICES
C. Tools/Equipment
NOTE: When more than one tool part number is listed under the same "Reference" number, the
tools shown are alternates to each other within the same airplane series. Tool part numbers
that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
Reference Description
SPL-461 Headset - Hearing Protector
SPL-6362 Kit - Coke Cleaning
767-200
Part #: 2C8043G02 Supplier: 06083
767
AIRCRAFT MAINTENANCE MANUAL
CF6-80A SERIES ENGINES
72-00-00
NoC
Page 715
D633T1B7 Aug 22/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ABX 001-007, 011, 012, 016-019, 021, 022, 025, 101,
109, 114, 115, 314-999
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