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TM10-4320-316-14
e.
If the DED pump assembly does not perform as required, refer to Section III, Operator Troubleshooting.
f.
If anything looks wrong and you can't fix it, write it on your DA Form 2404 IMMEDIATELY and report it to
your supervisor.
g.
When you do your PMCS, you will always need a rag or two. The following items are common to all of the
DED pump assembly components:
(1)
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 (Appendix E, Item 3) on all metal surfaces. Use soap
(Appendix E, Item 10) when you clean rubber or plastic material.
(2)
Rust and Corrosion. Check the components of the DED pump assembly for rust and corrosion. If
any bare metal or corrosion exists, clean and apply a thin coat of oil. Report it to your supervisor.
(3)
Bolts, Nuts, and Screws. Check them 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 a bolt, nut,
or screw you think is loose, tighten it or report it to your supervisor.
(4)
Welds. Look for loose or chipped paint, rust, or gaps where metal parts are welded together. If you
find a bad weld, report it to your supervisor.
(5)
Hoses. Look for wear, damage, or leaks and make sure clamps and fittings are tight. Wet spots show
obvious leaks, but a stain around a fitting or connector can also 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 your supervisor.
h.
When you check for "proper operating condition", you look at the component to see if its serviceable.
2-5.
SPECIAL INSTRUCTIONS. If the equipment must be kept in continuous operation, check and service only those
items that can be checked and serviced without disturbing operation. Make the complete checks and services when the
equipment can be shut down.
2-6.
LEAKAGE DEFINITIONS FOR OPERATOR PMCS. It is necessary for you to know how fluid leakage affects the
status of the DED pump assembly. Following are types and classes of leakage an operator needs to know to be able to
determine the status of the DED pump assembly. Learn these leakage definitions and remember -- when in doubt,
notify your supervisor.
CAUTION
Equipment operation is allowable with minor leakages (Class I or II). Of course, consideration must be given to fluid
capacity in the item/system being checked/inspected. When in doubt, notify your supervisor.
When operating with Class I or II leaks, continue to check fluid levels as required by your PMCS.
Class III leaks should be reported immediately to you supervisor.
2-5
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