TM 1-1520-238-23
5-190
5.43.
MAIN ROTOR HEAD ASSEMBLY (AVIM)
5.43.1. Description
This task covers:
Assembly.
5.43.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
3/4 x 1/2-inch drive socket wrench adapter (item 5,
App H)
Light duty laboratory apron (item 27, App H)
0.002 - 0.040-inch gap setting gage (item 147, App H)
Chemical protective gloves (item 154, App H)
3/4-inch drive hinged socket wrench handle (item 173,
App H)
Sling set kit (item 194, App H)
Adjustable air filtering respirator (item 262, App H)
Machinist’s scriber (item 278, App H)
1 1/8 x 3/4-inch drive deep socket wrench socket
(item 295, App H)
1 1/4 x 3/4-inch drive socket wrench socket (item 309,
App H)
12-inch strap pipe wrench (item 425, App H)
150 - 750 inch-pound 3/8-inch drive click type torque
wrench (item 442, App H)
0 - 30 inch-pound 1/4-inch drive dial indicator torque
wrench (item 445, App H)
Materials/Parts:
PLI washers (8)
Self-locking nuts (8)
Corrosion preventive compound (item 62, App F)
Lubricant (item 114, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
One person to assist
67R3F
Attack Helicopter Repairer/Technical
Inspector
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