VALVES, VALVE GUIDES, AND VALVE SEATS (CONT)

VALVES, VALVE GUIDES, AND VALVE SEATS (CONT) - TM-5-4320-302-14_380

TM-5-4320-302-14 Forward Area Water Point Supply System (FAWPSS) Model WP55100 NSN 4320-01-168-1629 and Model 9095-91 NSN 4320-01-338-3305 Manual
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TM 5-4320-302-14 5-21. VALVES, VALVE GUIDES, AND VALVE SEATS (CONT) Location/Item Action Remarks 5. Inlet and Inspect valves and valve stems. Replace any exhaust valves valves that show head warping, burning, or other damage. Replace valves that have seriously scratched or scuffed stems; or pitted, ridged, or cracked faces. Check that valve joint face thickness is no less than 0.0197 inch (0.5 mm). Replace valve(s) if joint face thickness is less than required. 6. Compression Replace any compression springs that are springs, valve pitted, fractured, excessively worn, or cones, spring damaged. Replace cones, caps, and valve caps, and rotators that are fractured, excessively valve rotators worn, or damaged. Replace any spring that has a fatigued (unloaded) length of less than 2.2047 inches (56 mm). Normal (replacement) length (unloaded) is 2.3228 inches (59 mm). Replace both valve springs if necessary. 5-96

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