CASTINGS, FORGINGS AND MACHINED SURFACES.,

TM 9-2520-270-34

WARNING

Solvent fumes can burn and

could poison you. Read warn-

ing in the front of this

manual.

(2) Clean all parts before inspections, checks, after repair, and before assembly. Use cleaning

solvent (Item 1, App B) or approved cleaner. Remove gum, varnish, and seaint compound

b y soaking parts in cleaning solvent and scrubbing with a soft bristle brush. Clean

thoroughy to remove any dirt and residue. Dry parts with wiping rag (Item 13, App B),

(3) Keep hands free of grease; grease collects dirt.

(4) Except where specified, never use abrasives, files, scrapers, wire brushes, or sharp tools on

surfaces where the finish is important to the operation or sealing of parts.

WARNING

Compressed air can injure

you and others. Do not aim air

at soldiers. Do not use more

pressure than 30 psi (207 kPa).

Always wear goggles.

(5) Dry clean parts immediately with compressed air and apply a thin film of clean oil to

prevent rusting. Never use lye or caustic solutions that will corrode or etch metal surfaces.

(6) Clean and apply lubricant in new bearings. Refer to TM 9-214 for detailed lubrication and

cleaning procedures. Bearings that have been in service should be relubricated.

(7) After cleaning, cover and wrap parts to protect from dirt,

c. CASTINGS, FORGINGS AND MACHINED SURFACES.,

WARNING

Solvent fumes can burn and

could poison you. Read warn-

Ing In the front of this

manual.

WARNING

Compressed air can injure

you and others. Do not aim air

at soldiers. Do not use more

pressure than 30 psi (207 kPa).

Always wear goggles.

(1) Clean inner and outer surfaces of casting with cleaning solvent (item 1, App B). Dry casting

with compressed air.

2-3