GENERAL CLEANING INSTRUCTIONS

TM 9-2320-366-20-3

CAUTION

Do not use tape to close off fuel or oil openings. Sticky surface of tape can mix with

fuel and oil and cause engine malfunctions.

e. Parts Protection. To keep dust, dirt, moisture, and other objects out of internal parts of systems or components,

cap or tape all open tubes, hoses, air lines, fittings and component openings as soon as part is removed. Wrap all

removed parts in clean paper or dip parts in preservation oil.

2-43. GENERAL CLEANING INSTRUCTIONS

WARNING

Dry Cleaning Solvent (P-D-680) is TOXIC and flammable. Wear protective goggles

and gloves; use only in well ventilated area; avoid contact with skin, eyes, and

clothes, and do not breathe vapors. Keep away from heat or flame. Never smoke

when using solvent; the flashpoint for Type I Dry Cleaning Solvent is 100 degrees F

(38 degrees C) and for Type II is 130 degrees F (50 degrees C). Failure to comply

may result in serious injury or death to personnel.

If personnel become dizzy while using Dry Cleaning Solvent, immediately get fresh

air and medical help. If solvent contacts skin or clothes, flush with cold water. If

solvent contacts eyes, immediately flush eyes with water and get immediate medical

attention. Failure to comply may result in injury to personnel.

Never use fuel to clean parts. Fuel is highly flammable. Serious injury or death

could result if fuel ignites during cleaning.

a. Cleaning Solvents. Use only approved cleaning solvents to clean parts. Dry Cleaning Solvent P-D-680 (Item 65,

Appendix D) is commonly used. Always work in a well-ventilated area.

WARNING

Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Use

only with effective chip guarding and personal protective equipment

(goggles/shield, gloves, etc). Failure to comply may result in injury to personnel.

b. Removing Deposits. Soak parts in Dry Cleaning Solvent P-D-680 (Item 65, Appendix D), and wash away deposits

by flushing or spraying. When necessary, brush with a soft bristle brush (not wire) moistened in solvent. Use

compressed air to dry parts, except bearings, after cleaning. Bearings must drip and air dry.

c. Tools. Do not use wire brushes, abrasive wheels, or compounds to clean parts unless specifically approved in the

detailed procedures. Parts may be scratched or altered and may weaken a highly stressed part.

d. Ball and Roller Bearings. When cleaning ball or roller bearings, place them in a basket and suspend them in a

container of Dry Cleaning Solvent P-D-680 (Item 65, Appendix D). If needed, use a brush to remove caked grease,

chips, etc. Avoid rotating bearing before solid particles are removed to prevent damaging races and balls. When

bearings have been cleaned, coat them lightly with lubricating oil (Item 42, Appendix D) to remove solvent.