TM 1-1520-238-23
11-84
Change 4
11.12.
AFT LONGITUDINAL BELLCRANK REMOVAL/INSTALLATION
11.12.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
11.12.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
3/8 x 1/2-inch drive socket wrench adapter (item 6,
App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
1 1/16 x 1/2-inch drive socket wrench socket (item 305,
App H)
1 7/16 x 1/2-inch drive socket wrench socket (item 315,
App H)
1 1/16 & 1 1/4-inch open end wrench (item 416, App H)
1 3/8 & 1 7/16-inch open end wrench (item 421, App H)
150 - 750 inch-pound 3/8-inch drive click type torque
wrench (item 442, App H)
0 - 175 foot-pound 1/2-inch drive dial indicator torque
wrench (item 444, App H)
Materials/Parts:
Bolt MS27576-10-46 (for alinement)
Cotter pin (3)
Adhesive (item 3, App F)
Cloth (item 47, App F)
Cloth (item 51, App F)
Corrosion preventive compound (item 62A, App F)
Methyl ethyl ketone (item 124, App F)
Sealing compound (item 176, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access panels L200 and R200 removed;
fairings T205L and T205R removed
11.10
Lateral bellcrank and lateral links removed
11.19
Torque link removed
WARNING
FLIGHT SAFETY PART
The aft longitudinal bellcrank and/or components of the bellcrank are flight safety parts.
Failure to follow maintenance instructions may result in serious injury or death of
crewmembers and/or serious damage to the helicopter.
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