TM 55-2840-254-23
4-58
CLEAN SECOND TURBINE NOZZLE, SPACER, AND CASE (AVIM)
4-58
INITIAL SETUP
General Safety Instructions:
Applicable Configurations:
All
Tools:
Powerplant Mechanic’s Tool Kit,
NSN 5180-00-323-4944
Goggles
Compressed Air Source
Materials:
Gloves (E20)
Lint-Free Cloth (E26)
Methyl Ethyl Ketone (E36)
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)
Second Turbine DISC Assembly Removed
(Task 4-53)
Second Turbine Nozzle, Spacer, and Case
Removed (Task 4-57)
First Turbine Disc Assembly Removed
(Task 4-62).
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.
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.
1. Clean second turbine nozzle (1) as follows:
a. Wear gloves (E20). Wipe second turbine noz-
zle (1) with lint-free cloth (E26) dampened
in methyl ethyl ketone (E36). Use brush on
vanes (2) and seal rings (3).
b. Wear goggles. Blow dry nozzle. Use clean, dry
compressed air.
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