TM 9-6115-604-34NAVFAC P-8-633-34(19)Check the gap at the 12 o'clock position of the adapter. ' it is still within the acceptable limit of O to 0.015inch (0.38 mm), loosen the hexagon head capscrews and lockwashers securing the generator adapter toengine flywheel housing and torque capscrews to 50 pound-feet (68 newton-meters) in accordance withFigure 2-10.(20)See Figure 2-4, detail B. Install hexagon head capscrews and locking plates to secure the generator drivediscs to the engine flywheel. Torque the capscrews to 112 pound-feet (152 newton-meters) in accordancewith Figure 2-10 and bend a loading plate corner to a flat side of each screw. After installing at least twohexagon head capscrews and one locking plate, remove the guide pins that were used to pilot thegenerator to the engine.(21)Install cover and screen assembly (3, Figure 2-3) with nuts (1) and screws (2).(22)See Figure 2-11 and check the exciter air gap (gap between exciter armature and stator) by inserting a0.010 inch (0.25 mm) feeler gage in the gap and rotating it around the armature diameter to ensure that aminimum air gap of 0.010 inch (0.25 mm) is available. I the feeler gage cannot be rotated one fullrevolution, then check for a “cocked" exciter stator or loose stator mounting capscrews. Refer to Chapter 5as necessary.(23)Using the barring mechanism built into the engine flywheel housing, (see Figure 3-2 of the Operator andOrganizational Maintenance Manual), bar the engine generator assembly through at least one fullrevolution to verify engine-generator freedom of rotation.NOTEIf binding is discovered, then the alignment procedure was performed incorrectly or theengine or generator or both have been improperly assembled.(24)Check the exciter air gap again in accordance with step (22), above.(25)Make electrical connections to strip heaters H109 and H110. Refer to paragraph 5-4 and dry the generatorset as required.NOTEUtility power must be available to dry the generator when installed in the generator set.(26)Reinstall air cleaner assembly in accordance with paragraph 4-74 of the Operator and OrganizationalMaintenance Manual.(27)Reinstall the roof panels and ac and dc lights and conduit above the engine and generator in accordancewith paragraphs 4-13 and 4-35 of the Operator and Organizational Maintenance Manual.(28)Reinstall the battery charger in accordance with paragraph 4-20 of the Operator and OrganizationalMaintenance Manual.(29)Reconnect the ac wiring harness (1, Figure 2-8) to the terminal board (2) and the two transformers (3).(30)Refer to Figure 2-14. Feed the generator leads through the conduit that runs between cabinet B and theconduit box assembly.(31)Reconnect the generator ground leads (3, Figure 2-13) to the insulated standoff (4).(32)Reconnect the generator power leads (1) to terminal posts (2) on the back of the load circuit breaker CB101 receptacles.(33)See Figure 2-12 and paragraph 4-18 of the Operator and Organizational Maintenance Manual. Reinstallthe cover on the rear of cabinet B.(34)See Figure 2-8 and install generator cable exit enclosure (4) to generator cabinet with capscrews (5) andlockwashers (6).(35)See Figure 2-7 and reinstall the conduit box cover assembly.(36)Reinstall batteries in accordance with paragraph 39 of the Operator and Organizational MaintenanceManual.(37)Refer to Chapter 13 and perform applicable set tests and inspections after repair or overhaul.2-44
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