TM 55-2840-254-23
4-74 CLEAN DIFFUSER CURL (AVIM)
4-74
INITIAL SETUP
Applicable Configurations:
All
Tools:
Goggles
Compressed Air Source
Fiber Brush
Second Turbine Nozzle, Spacer, and Case Re-
moved (Task 4-57)
First Turbine Disc Assembly Removed
(Task 4-62)
First Turbine Nozzle Removed (Task 4-67)
Diffuser Curl Removed (Task 4-73)
General Safety Instructions:
Materials:
Dry Cleaning Solvent (E17)
Gloves (E20)
Personnel Required.
68B10 Aircraft Powerplant Repairer
Equipment Condition:
Off Engine Task
Combustion Section and Power Turbine Re-
moved (Task 3-5)
Dry cleaning solvent (E17) is flam-
mable 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, im-
mediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
Second Turbine Disc Assembly Removed
(Task 4-53)
1. Wear gloves (E20). Clean diffuser curl (1) using
dry cleaning solvent (E17) and fiber brush.
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 diffuser curl (1). Use
clean, dry compressed air.
FOLLOW-ON MAINTENANCE:
Inspect Diffuser Curl (Task 4-75).
END OF TASK
4-481/(4-482 blank)
