TM 10-4320-344-24NOTEThis testing procedure applies to Model 609-A.The testing procedure forModel US636HCCD-1 is identical.To read alternator output voltage for Model609-c read voltmeter on control panel.a .Connect multimeter to alternator ground terminal (Figure 2-130, 1) andpositive output terminal (2).Set multimeter for voltage test.To prevent electrical shock, use caution when testing voltage output.b.Refer to TM 10-4320-344-10 and start engine.Run pumping assembly at about1,000 rpm.The voltage value to check for on Model US636HCCD-1 is 12 to 14.8 volts. Thevoltage value to check for on Model 609-C is approximately 28 volts.c .If voltage is not between 13.8 and 14.8 volts, replace alternator (3).d.Refer to TM 10-4320-344-10 and stop engine.The removal, inspection, and installation procedures apply to Model 609-A.The removal, inspection, and installation procedures for Models 609-C andUS636HCCD-1 are similar.2.21.16.2 Removal.Figure 2-131. Alternator Replacement (Model 609-A Shown).a.Loosen nut (Figure 2-131, 1) and screw (2) on alternator mounting bracket (3).2-299NOTENOTE
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