TM 55-1520-240-23-4
5-81.2
REPAIR KEVLAR SHOCK ABSORBER BRACKET WINDINGS — MINOR DAMAGE
5-81.2
INITIAL SETUP
Applicable Configurations:
All
Tools:
Heat Lamp
Respirator
Trip Balance, NSN 6670-00-401-7195
Materials:
Abrasive Paper (E7 and E9)
Acetone (E20)
Adhesive (E40, E41, E43, or E47.1)
Cloth (E120)
Gloves (E186)
Peel Ply (E270)
Polyethylene Cup (E157)
Tape, Glass Cloth (E387)
Teflon-Impregnated Fabric (E170)
Temperature Indicating Strips (E413)
Wood Spatula (E424)
Curing Agent (E158.1)
Personnel Required:
Aircraft Structural Repairer
Inspector
Equipment Condition:
Off Helicopter Task
General Safety Instructions:
Acetone (E20) is extremely flammable.
It can be toxic. Avoid inhaling. Use
only with adequate ventilation. Avoid
contact with skin, eyes, or clothing.
Keep away from heat, sparks, or open
flame. In case of contact, immediately
flush skin or eyes with water for
at least 15 minutes. Get medical
attention for eyes.
Adhesive used in the manufacturing of
some fiberglass rotor blades contain
asbestos. During blade repair, strict
adherence to all safety procedures
when working with asbestos must
be complied with (applies to blade
serial numbers A-1-0001 to 1465 and
A-2-0001 to 1473 only).
1.
Check depth of damage area (1). Depth shall
not exceed 0.005 inch. If damage is deeper
than 0.005 inch, return blade for disposition. If
damage is less than 0.005 inch deep, go to step
2.
Do not sand into filament windings.
2.
Remove finish 1 inch around all sides of damage
area (1). Use abrasive paper (E7).
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