Figure 14-6. Speed Switch Sensitivity Tests

Section IV. SPEED SWITCH, TACHOMETER DRIVE AND ADAPTER

TM-5-6115-545-34 Generator Set Diesel Engine Driven Tactical Skid Mtd. 30 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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Figure 14-6. Speed Switch Sensitivity Tests. NOTE No adjustments required for Speed Switch Forester (figure 14-7A) used on Serial Num– hers FZ–01299 on, for 50/60 Hz and Serial Numbers FZ-06399 on, for 400 Hz. Speed setting can be checked, but not adjusted. 14–20. Speed Switch Disassembly. Refer to figure 14-7; cut safety wire and disassemble in sequence of index numbers observing the following: g. If either the rotor assembly, the body assembly or the spacer are damaged or defective, replace defective part. Reassembly is the reverse order of disassembly. Refasten with lockwire after readjustment. b. Repeat the test and adjustment procedures in paragraph 14–19. Refer to Operator and Organizational Maintenance Manual and install speed switch. 14-21. Tachometer Drive and Adapter Removal and Disassembly. See figure 14-6 and proceed as follows: a. Adapter. Uncouple adapter from tachometer drive. b. Tachometer drive. Remove screw and clamp. Lift tachometer drive up and out of engine housing. c. Disassemble tachometer drive: (1) By means of a gear puller, remove gear from shaft. (2) Remove shaft from top of housing. (3) Remove preformed packing. 14-22. Tachometer Drive and Adapter Inspection and Repair. 14-10 Change 11

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