(1) The cleaning instructions will be the same for the majority of parts and components that make up the
(2) The importance of cleaning must be thoroughly understood by maintenance personnel. Great care and effort
are required in cleaning. Dirt and foreign material are a constant threat to satisfactory maintenance. The
following should apply to all cleaning, inspection, repair and assembly operations.
(a) Clean all parts before inspection, after repair and before assembly.
(b) Hands should be kept free of any accumulation of grease, which can collect dust, dirt or grit.
(c) After cleaning, all parts should be covered or wrapped to protect them from dust and dirt. Parts that are
subject to rust should be lightly oiled.
(3) Observe the following precautions during all cleaning operations:
P-D-680 (Type II) is a flammable solvent that is potentially dangerous to personnel. Keep away
from heat, sparks or open flame. Flash point of solvent is 138°F. Use only in a well ventilated
area. Inhaling vapors over a period of time can cause headache and drowsiness. Use gloves to
prevent irritation or inflammation of the skin. Solvent absorbed through the skin can result in
internal disorders. If contact occurs, wash the affected area with water for 15 minutes. For eyes,
flush with water and then seek immediate medical attention.
Improper cleaning methods and use of unauthorized cleaning solvents may injure personnel and
damage equipment. Refer to TM9-247 for correct information.
Eye shields must be worn when cleaning with a wire brush. Flying rust and metal particles may
cause injury to personnel.
Particles blown by compressed air are hazardous. Make certain the airstream is directed away
from user and other personnel in the area. To prevent injury, user must wear protective goggles
or face shield when using compressed air.