TM 1-1520-238-23
Change 3
5-133
5.27.
MAIN ROTOR PITCH HOUSING SHIM REPLACEMENT (AVIM)
5.27.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
5.27.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
0.000 - 6.000-inch outside micrometer caliper set
(item 52, App H)
Chemical protective gloves (item 154, App H)
Heat protective gloves (item 155, App H)
Electric gun type heater (item 163, App H)
1 1/4-inch blade putty knife (item 199, App H)
Adjustable air filtering respirator (item 262, App H)
Clamping fixture (figure D-454, App D)
Materials/Parts:
Adhesive (item 2, App F)
Cloth (item 48, App F)
Cloth (item 51, App F)
Methyl ethyl ketone (item 124, App F)
Primer (item 143, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
5.33
Lead lag link removed
WARNING
FLIGHT SAFETY PART
The main rotor pitch housing is a
flight safety part. Failure to follow
maintenance instructions may result
in serious injury or death of
crewmembers and/or serious damage
to the helicopter.
NOTE
This task is typical of all pitch housing
shims.
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M04-2298-1
