TM 55-2840-254-23
4-28 CLEAN THIRD TURBINE NOZZLE AND SUPPORT (AVIM)
4-28
INITIAL SETUP
Applicable Configurations:
All
Tools:
Powerplant Mechanic’s Tool Kit,
NSN 5180-00-323-4944
Goggles
Compressed Air Source
Materials:
Gloves (E20)
Methyl Ethyl Ketone (E36)
Combustion Section and Power Turbine
Disassembled (Task 3-6)
Thermocouple Harness Assemblies Removed
(Task 4-20)
Third Turbine Nozzle and Support Removed
(Task 4-26)
Third Turbine Nozzle and Support Dis-
assembled (Task 4-27)
General Safety Instructions:
Personnel Required:
68B10 Aircraft Powerplant Repairer
Equipment Condition:
Off Engine Task
Engine Oil System Drained (Task 1-75)
Combustion Section and Power Turbine
Removed (Task 3-5)
Methyl ethyl ketone (E36) is flammable
and toxic. It can irritate skin and cause
burns. Use only in well-ventilated area,
away from heat and open flame. In case
of contact, immediately flush skin or
eyes with water for at least 15 minutes.
Get medical attention for eyes.
1 Clean third turbine nozzle (1) and support (2)
as follows
a. Wear gloves (E20) and goggles. Use brush
dampened III methyl ethyl ketone (E36).
When using compressed air for cleaning,
use approved protective equipment for
eyes and face. Do not use more than
30 psig air pressure. Do not direct air
toward yourself or another person. Fail-
ure to comply could result in injury to
eyes or skin. In case of injury, get medi-
cal attention.
b. Wear goggles. Blow dry third turbine nozzle
(1) and support (2). Use clean, dry com-
pressed air.
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