TM 10-4610-237-12
2.4 PMCS PROCEDURES - Continued.
e. The "NOT FULLY MISSION CAPABLE IF:" column in Table 2-1 tells you when your equipment is not ready to
perform its combat mission and why the system cannot be used.
f. If the equipment does not perform as required, refer to Chapter 3, Section II, Troubleshooting.
g. If anything looks wrong and you can't fix it, write it on your DA Form 2404. IMMEDIATELY, report it to your
supervisor.
h. The following are checks that are common to the entire water system:
(1) Keep the equipment clean. Remove dirt, sand and debris from quick disconnect couplings, hose ends,
gate valves and distribution nozzles to prevent excessive wear and contamination of the water system.
Use soap and water to remove dirt. Do not contaminate system with any type of cleaning solvent.
(2) Bolts, nuts and screws. Check them for obvious looseness, missing, bent or broken condition on gate
valves. If you find a bolt, nut or screw you think is loose, tighten it or report it to your supervisor.
(3) Hoses. Look for wear, damage and leaks. Make sure clamps and quick disconnect couplings are tight.
Wet spots show leaks, but a stain around a fitting or connector can also mean a leak. If a leak comes from
a loose fitting or coupling, tighten it. If something is broken or worn out, report it to your supervisor.
i. When you check for "operating condition", look at the component to see if it's serviceable. Refer to Figure 2-3
for a PMCS routing diagram that shows the typical order by which the checks and services are done.
2.5 LEAKAGE DEFINITIONS FOR OPERATOR PMCS.
It is necessary for you to know how fluid leakage affects the status of the equipment. Following are types/ classes of
leakage an operator needs to know to be able to determine the status of the water system. 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 system. When in doubt, notify your supervisor.
·
When operating with Class I or II leaks, continue to check fluid levels as required in your PMCS.
·
Class III leaks should be reported immediately to your supervisor.
a. Class I Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
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