TM 55-2840-254-23
4-63 CLEAN FIRST TURBINE DISC ASSEMBLY (AVIM)
4-63
INITIAL SETUP
Applicable Configurations:
All
Tools:
Powerplant Mechanic’s Tool Kit,
NSN 5180-00-323-4944
Goggles
Compressed Air Source
Materials:
Dry Cleaning Solvent (E17)
Gloves (E20)
Personnel Required:
WARNING
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)
Dry cleaning solvent (E17) 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. Wear gloves (E20). Clean first turbine disc as-
sembly (1) with brush dampened in dry clean-
ing solvent (E17).
WARNING
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.
2. Wear goggles. Blow dry disc assembly. Use clean,
dry compressed air.
FOLLOW-ON MAINTENANCE.
Inspect First Turbine Disc Assembly
(Task 4-64).
END OF TASK
4-406
