5-4. MAINTENANCE INTRODUCTION (CONT).
(3) Do not clean rubber parts in drycleaning solvent. Wipe clean with a dry, clean, lint-free cloth (item 12,
Sealant causes immediate bonding on contact with eyes, skin, or clothing and also gives off harmful
vapors. Wear protective goggles and use in well-ventilated area. If adhesive gets in eyes, try to keep eyes
open; flush eyes with water for 15 minutes and get immediate medical attention.
(4) A degreasing tub may be used to remove heavy grease and oil from metal parts. Use degreasing and
depreserving cleaning compound (item 9, appendix E) as degreasing agent.
To prevent corrosion, part should be dipped in rust preventive within two hours of degreasing.
(5) Remove parts from degreasing machine and check all oil passages and cavities for cleanliness and freedom
from obstruction before coating with rust preventive. Run a thin, flexible wire through oil passages to make sure they
are not clogged. Use a pressure spray gun and drycleaning solvent to clean dirty passages.
(6) Parts soaked in carbon removal solution should be rinsed with drycleaning solvent. Rinse in a solvent
spray booth equipped with a filter and hand spray gun, then use a soft bristle brush (item 5, appendix E) to remove
carbon deposits. A cloth buffing wheel may also be used.
Drycleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and gloves and use only in
a well ventilated area. Avoid contact with skin, eyes and clothing and don't breathe vapor. Do not use
near open flame or excessive heat. The flash point is 100oF-140°F (38°.60°C). If you become dizzy while
using cleaning solvent, get fresh air immediately and get medical aid. If contact with eyes is made, wash
your eyes with water and get medical aid immediately.
(7) Electrical parts, such as coils, junction blocks, insulated wiring and switches, should not be soaked or
sprayed with cleaning solutions. Clean these parts with a clean lint-free cloth moistened with drycleaning solvent P-D-
(8) When cleaning ball or roller bearings, place in a basket and suspend in a container of drycleaning solvent,
chips. Avoid rotating bearings before solid particles are removed to prevent damage to races and balls. When bearings
have been cleaned, spin immediately in light lubricating oil (item 34, appendix E) to remove solvent.