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TM9-2320-270-20-1
CLEANING - CONTINUED
WARNING
Compressed air used for blowing away chips, dirt, etc., must leave nozzle at less than
30 psi (207 kPa) to prevent personal injury. Be certain that nozzle is rated to provide a
maximum of 30 psi (207 kPa). Be sure to wear safety goggles or lenses when using
compressed air. Compressed air and particles moved by compressed air can cause
damage to your eyes.
Use clean water or soap (item 14, appendix C) and water to clean rubber or plastic material. Clean off
rust on metallic parts with wire brush or crocus cloth (item 5, appendix C). Use low pressure
compressed air to blow away rust and cloth particles. Hydraulic system components must be cleaned
and dried carefully so that dirt and metal or fiber particles cannot get into hydraulic fluid and
contaminate it.
To clean bearings, refer to TM 9-214.
WARNING
Electrical parts solvent cleaning compound (trichlorotrifluoroethane) is flammable, and
reacts violently with aluminum, titanium, barium, lithium, samarium, and sodium
potassium. Cleaning compound fumes displace air and it maybe carcinogenic. Boiling
point is 114F (46C). Do not wear jewelry. Wear rubber gloves and use only in well
ventilated area. Avoid contact with skin, eyes, and clothes and do not breathe vapors.
Do not use near open flame or excessive heat. If you become dizzy while using cleaning
compound, get fresh air immediately and get medical aid. If contact with eyes is made,
wash your eyes with water and get medical aid immediately.
Compressed air used for blowing away chips, dirt, etc., must leave nozzle at less than
30 psi (207 kPa) to prevent personal injury. Be certain that nozzle is rated to provide a
maximum of 30 psi (207 kPa). Be sure to wear safety goggles or lenses when using
compressed air. Compressed air and particles moved by compressed air can cause
damage to your eyes.
Use clean rags dampened with electrical parts solvent cleaning compound (item 4, appendix C) to
clean dust, dirt, and grease off of electrical wiring harnesses and connectors. If parts are too dirty to
wipe clean, dip them into cleaning compound, shake off excess, and wipe clean with clean dry rags.
To get dirt out of recessed area, use a stiff brush. Wiring harnesses and connectors must be
completely dry before use. Dry wiring harnesses and connectors with clean dry rags and allow to air
dry. To speed up drying time, use dry compressed air.
Cover parts after cleaning to protect from dust and dirt.
The general cleaning covered by other manuals is as follows:
TM 9-247: Materials Used for Cleaning, Preserving, Abrading, and Cementing Ordnance
Materiel and Related Materials, Including Chemicals.
TM 9-214: Inspection, Care, and Maintenance of Antifriction Bearings.
TB 750-1047: Elimination of Combustibles from interiors of Metal or Plastic Gasoline
and Diesel Fuel Tanks (TO 36Y31-3-6).
4-3

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