3-4. CLEANING INSTRUCTIONS (CONT)
Bearings require special cleaning. After removing surface oil and gum deposits, place bearings in hot oil (140° F
(60° C)) to loosen congealed oil and grease. Wipe bearings dry. Do not use compressed air. After cleaning, coat
bearings with oil, wrap in paper, and hold for inspection.
Refer to TM9-214 for information and care of bearings.
h. Machine Tooled Parts.
Clean machine tooled parts with dry cleaning solvent (P-D-680).
Dry parts with compressed air.
i. Machined Surfaces.
· Drycleaning solvent 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 l38 ° F (59° C).
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 air stream 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.
Clean machined surfaces with dry cleaning solvent (P-D-680).
Dry surfaces with compressed air.
j. Mated Surfaces.
Remove old gasket and/or sealing compound using wire bush and dry cleaning solvent (P-D-680).
Lightly oil and wrap all parts subject to rust before storing.
k. Rusted Surfaces. Clean all rusted surfaces using wire brush and crocus cloth.
l. Oil Bathed Internal Parts. Wipe oil bathed internal parts clean with lint free cloth.