REPAIR PITCH BEARING OIL TANK (AVIM)
Dry cleaning solvent (E162) is
flammable and toxic. It can irritate
skin and cause burns. Use only in
well-ventilated area, away from heat
and open flame. In case of contact,
immediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
Metallic dust and paint chips can block
oil passages and damage rotary-wing
head. Tank openings must be plugged
before reworking or refinishing tank.
Procedure is same to repair all six
pitch bearing oil tanks.
Plug filler plug hole (1) and both sight indicator
holes (2). Use caps or plugs. Mask mounting
surface (3) near rework and refinish area. Use
masking tape (E388).
Clean mounting surface of tank (4). Use plastic
or aluminum scraper and cloths (E120) damp
with solvent (E162). Wear gloves (E184.1).
Blend scores, nicks, or gouges on tank (4).
Damage limit is 0.020 inch in depth by 2.5
inches in length. Blend to width at least 10 times
depth of damage. Use crocus cloth (E122).