TM 1-1520-238-23
Change 6
5-111
5.23.
MAIN ROTOR DAMPER REMOVAL/INSTALLATION
5.23.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
5.23.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
1/2-inch drive ratchet socket wrench handle (item 172,
App H)
Adjustable air filtering respirator (item 262, App H)
3-piece spatula set (item 337, App H)
1 1/16 & 1 1/8-inch box wrench (item 410, App H)
700 - 1600 inch-pound 1/2-inch drive click type torque
wrench (item 433, App H)
150 - 750 inch-pound 3/8-inch drive click type torque
wrench (item 442, App H)
Materials/Parts:
Cloth (item 52, App F)
Dry cleaning solvent (item 74, App F)
Lubricant (item 114, App F)
Sealing compound (item 175, App F)
Personnel Required:
67R
Attack Helicopter Repairer
One person to assist
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
1.62
Rotor brake locked
WARNING
FLIGHT SAFETY PART
The main rotor damper is a flight safe-
ty 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 for removal and instal-
lation of all main rotor dampers.
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