TM 1-1520-238-23
11-1038
11.246.
DIRECTIONAL F.S. 199.25 BELLCRANK INSTALLATION
11.246.1. Description
This task covers:
Installation.
11.246.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
1/4 x 1 7/16 dowel (item 109, App H)
10 - 50 inch-pound 1/4-inch drive click type torque
wrench (item 434, App H)
Materials/Parts:
Cotter pin (3)
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
WARNING
To prevent injury, maintenance per-
sonnel shall be warned before moving
controls. If injury occurs, seek medi-
cal aid.
11.246.3. Installation
a. Install sleeve spacer (1) and ball bearing (2)
on directional control bellcrank (3).
(1) Insert dowel (4) in hub of bellcrank (3)
through staked ball bearing (5). Use dowel.
(2) Install spacer (1) over dowel (4) and in bell-
crank (3).
(3) Aline bearing (2) with dowel (4).
(4) Install bearing (2) in bellcrank (3).
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