GENERAL.

TM5--4210-224-14&P

When you do your PREVENTIVE MAINTENANCE, always take along the tools you'll need to make all the

checks. You'll always need a rag or two.

WARNING

Cleaning solvent, Federal Specification P-D-680, is both toxic and flammable. Keep off skin.

Use only in a well-ventilated area and avoid prolonged breathing of vapors. Keep away from

open flame.

Keep it clean: Dirt, grease, oil, and debris only get in the way and may cover up a serious problem. Clean as

you work and as needed. Use cleaning solvent (Appendix D, item 44) on all metal surfaces. Use soap and

water when you clean cloth, rubber or plastic material.

Bolts, nuts, and screws: Check them all for obvious looseness, missing, bent or broken condition. You can't

try them all with a tool, of course, but look for chipped paint, bare metal, or rust around the bolt and nut

heads. If you find one you think is loose, tighten it or report it to organizational maintenance if you can't

tighten it.

Welds: Look for loose or chipped paint, rust, or gaps where parts are welded together. If you find a bad weld,

report it to organizational maintenance.

Electric wires and connectors: Look for cracked or broken insulators, bare wires, and loose or boken

connectors. Tighten loose connectors and make sure the wires are in good shape.

Leakage: Leakage definitions for operator/crew PMCS shall be classified as follows:

Class I

Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.

Class II

Leakage of fluid great enough to form drops but not enough to cause drops to drip from

item being checked/inspected.

Class III

Leakage of fluid great enough to form drops that fall from the item being

checked/inspected.

CAUTION

Equipment operation is allowable with minor leakages (Class I or II). Of course, you must

consider the fluid capacity in the item/system being checked/inspected. When in doubt, notify

your supervisor.

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