CONTROL PANEL SWITCHES AND RELAYS (cont)

CONTROL PANEL SWITCHES AND RELAYS (cont) - TM-5-3825-229-14P_117

CONTROL PANEL SWITCHES AND RELAYS (cont) - TM-5-3825-229-14P_119

TM-5-3825-229-14P Distributor Water Self-Propelled 2500 Gallon Capacity Sectionalized and Non-Sectionalized Models 613BWDNS Manual
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TM 5-3825-229-14&P 4-12. CONTROL PANEL SWITCHES AND RELAYS (cont) g. Engine Relay Panel (cont). (2) Testing (cont). (a) Testing Glow Plug Resistor (cont). 3. Connect one lead of the multimeter to terminal "A". Connect the other lead to terminal "B". The reading should show continuity or very little resistance. 4. Connect one lead of the multimeter to terminal "A" and the other lead to terminal "C". The reading should show continuity or very little resistance. 5. If there is no continuity and resistance is noted in either test, replace resistor. (b) Testing Control Relay. 1. Connect terminal "A" to negative (or ground) of a 12- volt DC power supply or battery. 2. Connect terminal "B" to positive of a 12-volt DC power supply or battery. 3. Prepare multimeter to read DC voltage per instructions supplied with multimeter. 4. Check voltage at terminal "C" with multimeter. Voltage should be zero. If voltage is present, replace relay. 5. Connect terminal "D" to positive of a 12-volt DC power supply or battery. 6. Check voltage at terminal "C" with multimeter. Voltage should read 12 volts. If voltage is not 12 volts, replace relay. 4-26

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