3-3. GENERAL INFORMATION (CONT)
Do not pull bearings or bushings unless damaged. If you must get at parts behind them, pull out bearings or
Replace all gaskets, seals, and preformed packings.
3-4. CLEANING INSTRUCTIONS
The cleaning instructions will be the same for the majority of parts and components that make up the ATLAS.
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.
Clean all parts before inspection, after repair and before assembly.
Hands should be kept free of any accumulation of grease, which can collect dust, dirt or grit.
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.
Observe the following precautions during all cleaning operations:
· 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.
b. External Engine Cleaning.
Protect all electrical equipment that could be damaged by the steam or moisture before steam cleaning.
Cover all openings before steam cleaning.
After cleaning, dry and apply a light coat of oil to all parts subject to rust.