PISTON ASSEMBLY (CONT) - TM-5-4320-302-14

PISTON ASSEMBLY (CONT) - TM-5-4320-302-14_507

PISTON ASSEMBLY (CONT) - TM-5-4320-302-14_509

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 6-16. PISTON ASSEMBLY (CONT) Location/Item Action Remarks CAUTION Small-end bush damage may result if piston pin is refinished. Do not refinish highly polished or lapped piston pin surface. 14. Piston pin a. Inspect for scoring, fretting, pitting, or indications of overheating. If damaged, replace piston pin. b. Measure for wear and check alinement. Measure alinement with beveled steel straightedge. This measurement will also indicate relative wear along the piston pin. Measure diameter of piston pin with micrometer at several points along the length of the pin. The diameter should be 1.3777 to 1.3780 inches (34.994 to 35.0 mm). The diameter should not be greater than 1.3780 inches (35.0 mm) under normal conditions. However, if it is, replace piston pin and recheck piston bore measurements. Replace piston if necessary. If piston pin is worn and any diameter measurements are less than 1.3777 inches (34.994 mm), replace piston pin. NOTE: MEASURE DIAMETER AT SEVERAL POINTS ALONG LENGTH OF PIN. 6-114

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