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

CLEANING/ INSPECTION - TM-5-4320-302-14_562

CRANKSHAFT ASSEMBLY (CONT) - TM-5-4320-302-14_564

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 6-20. CRANKSHAFT ASSEMBLY (CONT) Location/Item Action Remarks 11. Main bearing a. Make sure bush is seated properly in crank- bush case. Inspect for damage or excessive wear. Measure bearing bush bore with precision micrometer at points 1 and 2 and along axis A and B. b. The bore of a normal size bearing bush should measure 2.5216 to 2.5232 inches (64.050 to 64.089 mm). If measurements are outside the tolerance limits, replace main bearing bush with one of the normal or undersized bore (oversized wall thick- ness) bearing bushes listed below: NORMAL NOMINAL INSIDE DIAMETER AND WALL THICKNESS AND UNDERSIZES OVERSIZES inches inches BEARING BUSH (millimeters) (millimeters) Normal inside diameters 2.5216 to 2.5232 0.0974 to 0.0976 and Nominal wand (64.05 to 64.089) (2.475 to 2.480) Nominal wall thickness 2.5020 to 2.5035 0.1073 to 0.1075 First undersize (63.55 to 63.589) (2.7254 to 2.730) 2.4823 to 2.4838 0.1171 to 0.1173 Second undersize (63.05 to 63.089) (2.975 to 2.980) 2.4626 to 2.4641 0.1270 to 0.1272 Third undersize (62.55 to 62.589) (3.225 to 3.230) 6-169

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