TM 1-2840-252-23-2
4-55
INITIAL SETUP
Engine Oil System Drained (Task 1-69)
Combustion Section and Power Turbine Removed
Applicable Configurations:
All
Second Turbine Disc Assembly Removed (Task
Tools:
Powerplant Mechanic's Tool Kit,
General Safety Instructions:
NSN 5180-00-323-4944
WARNING
Goggles
Dry, Compressed Air Source
When using compressed air for clean-
Materials:
ing, use approved protective equipment
Gloves (E24)
for eyes and face Do not use more than
Denatured Alcohol (E17)
30 psig air pressure. Do not direct air
Personnel Required:
toward yourself or another person Fail-
Aircraft Powerplant Repairer
ure to comply could result in injury to
Equipment Condition:
eyes or skin. In case of injury, get medi-
Off Engine Task
cal attention.
1. Clean second turbine disc assembly (1as follows:
)
a. Wear gloves (E24) and goggles. Clean second
turbine disc (1) using denatured alcohol (E17) and
brush.
In following step, avoid directing air at
blade air cooling passages. Failure to
comply may cause blockage of blade air
cooling passages.
b Blow dry second turbine disc assembly (1),
using clean, dry, compressed air.
2. Clean seal (2)as follows.
a. Wear gloves (E24) and goggles Clean seal (2),
using denatured alcohol (E17) and brush.
b. Blow dry seal (2)using clean, dry, compressed air.
FOLLOW-ON MAINTENANCE
Inspect Second Turbine Disc Assembly (Task
END OF TASK
