2-4. General PMCS Procedures
Dry cleaning solvent (PD-680) is toxic and flammable. Avoid prolonged breathing of vapors. Avoid
skin contact. use only in well-ventilated area. Keep away from open flame. Flash point of solvent
is 138o (50oC).
a. 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 dry cleaning solvent (item 3, Appendix E) on all metal surfaces. Use
soap and water when you clean rubber or plastic material
b. While performing specific PMCS procedures, inspect the following components:
Bolts, nuts and screws: Check them all for obvious looseness, missing, bent or broken condition.
You can't try them all with a tool, but look for chipped paint, bare metal or rust around bolt heads.
If you find one you think is loose, tighten it or report it to unit maintenance
Welds: Look for loose or chipped paint, rust or a gap where parts are welded together. If you find a
bad weld, report it to unit maintenance.
Electric wires and connectors: Look for cracked, frayed or broken insulation, bare wires and loose
connectors. Tighten all loose wires and connectors as required.
Hoses and fluid lines: Look for wear, damage and leaks. Make sure clamps and fittings are tight.
Wet spots show leaks of course, but 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 to
c. Check to see that components are adequately lubricated in accordance with Appendix I, Lubrication
2-5. Specific PMCS Procedures
a. Operator/Crew PMCS is provided in Table 2-1. Always perform PMCS procedures in the order listed.
Once they become routine, spotting problems will be much easier.
b. Before performing PMCS, read all checks required for the applicable interval and prepare all tools needed
for the task. Have several clean rags (item 14, Appendix E) ready for use.
c. If any problems are discovered through PMCS, perform appropriate troubleshooting task as described in
Chapter 3. If any component or system is not serviceable, or if any service does not correct the problem,
notify your supervisor.