PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS Continued
Air pressure in excess of 30 psi (207 kPa) can injure personnel. Do not direct pressurized air at
yourself or others. Always wear goggles.
Lye or caustic substances will damage metal surfaces. Do not use lye or caustic mixtures to
clean metal surfaces.
Cleaning solvent causes leather, rubber, and synthetic materials to become brittle. Do not use
cleaning solvent to clean seals, cables, and flexible hoses.
CLEAN EVERY PART. Clean every part well after disassembly and before assembly or installation. Clean parts
such as housings, covers, and dipsticks before disassembly. Avoid getting dirt and foreign matter in a system.
Inspect and cap all air and fluid openings, lines, and hoses.
HANDLE WITH CARE. Use care when handling parts during cleaning and maintenance. Nicks, scratches, dents,
and burrs can prevent proper assembly or cause malfunctions after assembly. Keep hands free of grease. Grease
collects dirt. Cover or wrap parts to protect from dirt.
AVOID ABRASIVES. Except where specially called for in a task, dont use abrasives, files, wire brushes, or sharp
tools. On some surfaces, finish is important to the operation of close fitting parts.
REMOVAL AGENTS. Remove gum or old grease deposits by soaking parts in cleaning compound (WP 0122 00,
Item 8). Scrub with a brush. Use crocus cloth (WP 0122 00, Item 11) to remove minor surface defects.
STEAM CLEANING. If steam cleaning is used, dry clean parts at once with compressed air. Apply a thin film of
clean oil to surfaces that are not painted to prevent rusting. Never use lye of caustic mixtures that will corrode or
etch metal surfaces.
LUBRICATION OF NEW BEARINGS. See TM 9-214 for cleaning and lubrication procedures. Bearings that
have been in service should also be lubricated.
Clean inner and outer surfaces of casting with cleaning compound (WP 0122 00, Item 8). Dry casting with
Remove sludge and gum deposits with a brush.