TM 55-2840-254-23
4-70 REPAIR FIRST TURBINE ROTOR CASE (AVIM)
4-70
INITIAL SETUP
Applicable Configurations:
All
Tools:
Powerplant Mechanic’s Tool Kit,
NSN 5180-00-323-4944
Technical Inspection Tool Kit,
NSN 5180-00-323-5114
Skimming Maintenance Kit (T32)
Sound Protector
Goggles
Vernier Caliper, 1-Inch
Vacuum Cleaner
Equipment Condition:
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)
General Safety Instructions:
WARNING
Materials:
Emery Cloth (E18)
Lockwire (E29)
Marking Pencil (E34)
Personnel Required:
68B10 Aircraft Powerplant Repairer
68B20 Aircraft Powerplant Repairer
68B30 Aircraft Powerplant Inspector
Exposure to skimming maintenance kit
noise may cause ringing in ears, and
temporary or permanent hearing loss.
When using skimming maintenance kit,
wear approved hearing protection. If
ringing in ears or loss of hearing persists,
get medical attention.
References:
Task 4-61
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