TM 5-5420-234-14&P
4-15. GENERAL DISASSEMBLY INSTRUCTIONS (continued).
e.
Parts Protection. To prevent moisture and dirt from entering open housings, lines, and other openings,
apply protective caps and plugs as soon as possible after disassembly. Wrap all parts removed in clean cloth
or dip them in preservative oil.
WARNING
Cleaning solvents may be toxic to skin, eyes, and respiratory tract. Skin and eye
protection is required. Avoid repeated or prolonged contact. Good general
ventilation is normally adequate.
Never use gasoline to clean parts. Gasoline is highly flammable. Serious injury or
death could result if fuel ignites during cleaning.
CAUTION
Petroleum solvents may damage parts that are in contact with hydraulic fluids.
Do not clean tires, lubricants, seals, rubber hoses, or electrical components with a solvent
mixture.
a.
Cleaning Solvents. Use only approved cleaning solvents to clean parts. Drycleaning solvent is commonly
used. Work in a well-ventilated area.
WARNING
Compressed air used for cleaning and drying purposes shall not exceed 30 psi (207
kPa). Use only with chip-guarding and personal protective equipment (goggles/
shield, gloves, etc.).
b.
Deposit Removal. After soaking parts in solvent, wash away deposits by flushing or spraying. Where
necessary, brush with a soft bristle brush moistened in solvent. Use compressed air to dry all parts, except
bearings. Bearings must be allowed to air-dry.
c.
Tools. Do not use scrapers, wire brushes, abrasive wheels, or compounds in cleaning parts, unless called for
in detailed instructions.
d.
Ball and Roller Bearings. When cleaning ball or roller bearings, place them in a basket and suspend the
basket in a container of drycleaning solvent. If needed, use a brush to remove caked-on grease, chips, and so
on. Avoid rotating a bearing before solid particles are removed, to prevent damaging races and balls. When
bearings have been cleaned, coat them lightly with lubricating oil to remove solvent.
e.
Rubber Parts. Do not clean O-rings or other rubber parts in drycleaning solvent. These parts should be
wiped clean with a clean, dry, lint-free cloth.
