4-5. SERVICE UPON RECEIPT FROM STORAGE.
If the unit has been received from long term storage, perform the steps in para 4-4 if applicable and change engine oil
and filter (para 4-22) and perform PMCS prior to operating engine.
Section III. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
PMCS Instructions. The PMCS table is used to prevent equipment failure as well as to detect defects. The
following paragraphs explain the use of the PMCS table as well as instructions as to what to look for.
Dry cleaning solvent P-D-680 is toxic and flammable. Wear protective goggles, face mask, and
gloves and use only in a well ventilated area. Avoid contact with skin, eyes, and clothes and
don't breathe vapor. Do not use near open flame or excessive heat. The flashpoint for type I dry
cleaning solvent is 100°F (38oC) and for type II is 140°F (60°C). If you become dizzy while using
cleaning solvent, get fresh air immediately and get medical aid. If contact with eyes is made,
flush eyes with water and get medical aid immediately.
Cleanliness. Dirt, grease, oil and debris only get in the way and may cover up a serious problem. Use dry
cleaning solvent P-D-680 (item 31, Appendix E) on all metal surfaces.
Bolts, Nuts and Screws. Check bolts, nuts and screws for obvious looseness, missing, bent, or broken condition.
Look for loose or chipped paint, bare metal, or rust around bolt heads. If any part seems loose, tighten it. If the part is
missing, bent or broken, report it to the supervisor.
Welds. Look for loose or chipped paint, rust or gaps where parts are welded together. If a bad weld is found,
Electrical Wires and Connectors. Look for cracked or broken insulation, bare wires and loose or broken
connectors. Tighten loose connectors and make sure the wires are in good shape. If a bad wire or connector is found,
Hydraulic Lines and Fittings. Look for wear, damage, leaks and make sure that clamps and fittings are tight.
Wet spots show leaks and a stain around a fitting or connector can mean a leak. If a leak comes from a loose fitting or
connector, tighten it. If something is broken or worn out, report it.
Unusual Environment. When the sweeper is being used in an unusual environment, extreme heat, cold, wet
and dry conditions, PMCS should be performed more often than indicated on the PMCS table.
First Use Inspections. When the sweeper is first being put into use or is being used for the first time after a
long period of non-use, perform all the PMCS inspections.