TM 5-4240-501-14&PSTARTERS- Briggs & Stratton Gear Drive 12V & 120VEquipment Needed -1.An AC volt meter capable of measuring 120volts AC.2.An AC ammeter capable of measuring 25amperes AC.3.A VOA meter as shown on page 20 may beused in place of volt meter and ammeter noted above.4.Remove the spark plug from the engine.CAUTION: The test of this rectifier assembly requires theuse of a 120 volt AC circuit. Extreme care should beused when making this test to minimize the hazard ofelectrical shock.Measure the line voltage of the 120 volt AC outlet to beused. Connect the voltmeter and ammeter as shown inFig. 99 prior to removal from engine.Fig. 99 - Checking Control Assembly PerformanceA control assembly in good condition will show 120 voltsof line voltage and a maximum of 15 amperes on theammeter with starter button depressed and starter motorengaged. Fig. 99 inset.If meters show no readings or a reading of 20 amperesis exceeded, see Troubleshooting, page 9 and 10.DISASSEMBLING CONTROL ASSEMBLYDANGER: Disconnect extension cord from outlet beforedisassembling control assembly.With control assembly removed from mounting surface,remove three screws holding back plate to housing. Fig.100. Note position of wires.Fig. 100 - Removing Back PlateDisconnect wires from rectifier.. Test rectifier as shownin Fig. 101. With one probe on (+) plus terminal, touchthree remaining terminals with other probe. Reverseprocedure. Place other probe on (+) terminal and touchthree terminals with probe. One test should not indicateany reading.Fig. 101 - Checking RectifierTo replace rectifier assembly, remove retainer springwasher. Note rectifier position and remove. If rectifierpost should break, drill a 3/16" diameter hole in postlocation. Connect rectifier with plastic screw and nut.Assemble as noted in Fig. 102 and 104.Fig. 102 - Replacing Rectifier28
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