TM 55-2840-254-23
4-42
CLEAN NO. 4 AND 5 BEARING OIL TUBES (AVIM)
4-42
INITIAL SETUP
Applicable Configurations.
All
Tools.
Compressed Air Source
Fiber Brush
Goggles
Materials:
Gloves (E20)
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)
Combustion Section and Power Turbine
Disassembled (Task 3-6)
No, 4 and 5 Bearing Oil Tubes Removed
(Task 4-41)
General Safety Instructions.
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. Wear gloves (E20) and goggles, Clean oil tube as-
semblies (1 and 2) and adapters (3 and 4). Use
methyl ethyl ketone 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.
Failure to comply could result in in-
jury to eyes or skin. In case of injury,
get medical attention.
2. Wear goggles. Blow dry internal and external
surfaces of oil tube assemblies (1 and 2) and
adapters (3 and 4). Use clean, dry compressed
air.
FOLLOW-ON MAINTENANCE’
Inspect No. 4 and 5 Bearing Oil Tubes
(Task 4-43).
END OF TASK
4-249
