TM 1-1520-238-23
6-8
Change 9
SECTION I. DRIVE SHAFT AND COUPLING MAINTENANCE
6.1.
DRIVE SHAFT INSPECTION
6.1.1. Description
This task covers:
Inspection.
6.1.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Light duty laboratory apron (item 27, App H)
Industrial faceshield (item 129, App H)
Fluorescent inspection kit (item 138, App H)
0.000 - 0.125-inch dial indicator depth gage (item 145,
App H)
Nutation/torque reactor tool (Figure D-483, App D)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
1 - 100 inch-ounce 1/4-inch hexagon drive click type
torque wrench (item 437, App H)
Materials/Parts:
Brush (item 34, App F)
Methyl ethyl ketone (item 124, App F)
Personnel Required:
67R
Attack Helicopter Repairer
One person to assist
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1500-204-23
TM 55-1500-335-23
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access doors T250L, T250R, T290L,
T290R, and L325 opened; cover L540 re-
moved; fairings R410, R475, L510, R510,
and L530 removed
6.1.3. Inspection
a. Check components for damage and loose mounting.
b. Check for loose, missing, or damaged mounting hardware.
c. Check drive shaft for cracks. Use magnifier where needed.
(1) Clean suspected areas. Use brush (item 34, App F) and methyl ethyl ketone (item 124, App F). Discard
brush in suitable container after use.
(2) Check for cracks. None allowed. Use fluorescent inspection kit (TM 55-1500-335-23).
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