Propeller Owner's Manual
175
MAINTENANCE PRACTICES
61-00-75
Page 6-15
Dec/05
(4) Before refinishing the blades, apply a corrosion
preventive coating to the bare aluminum surface. Oakite
31, Chromicote L-25, or Alodine 1201 are approved
chemical conversion coatings. Apply these coatings in
accordance with the directions provided by the product
manufacturer.
(5) Apply masking material to the deice boot and tip stripes,
as needed.
WARNING:
FINISH COATINGS ARE FLAMMABLE
AND TOXIC TO THE SKIN, EYES, AND
RESPIRATORY TRACT. SKIN AND EYE
PROTECTION ARE REQUIRED. AVOID
PROLONGED CONTACT. USE IN A WELL
VENTILATED AREA.
CAUTION:
APPLY FINISH COATING ONLY TO THE
DEGREE REQUIRED TO UNIFORMLY
COVER THE REPAIR/EROSION. AVOID
EXCESSIVE PAINT BUILDUP ALONG THE
TRAILING EDGE TO AVOID CHANGING
BLADE PROFILE.
(6) Apply sufficient finish coating to achieve 2 to 4 mils
thickness when dry. Re-coat before 30 minutes, or after
48 hours. If the paint is permitted to dry longer than four
(4) hours, it must be lightly sanded before another coat is
applied.
(7) Remove the masking material from the tip stripes and
reapply masking material for the tip stripe refinishing, if
required.
(8) Apply sufficient tip stripe coating to achieve 2 to 4 mils
thickness when dry. Re-coat before 30 minutes, or after
48 hours. If the paint is permitted to dry longer than four
(4) hours, it must be lightly sanded before another coat is
applied.
(9) Remove the masking material immediately from the de-
ice boot and tip stripes, if required.
(10) Optionally, perform dynamic balancing in accordance
with the procedures and limitations specified in Dynamic
Balance section of this chapter.
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331