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TROUBLESHOOTING & REPAIR
PROTECTION RELAY (CR1) TEST (continued)
FIGURE F.7 – CR1 LEAD CONNECTIONS
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TEST PROCEDURE
1.Using the 5/16” and 3/8” nut drivers, remove the sheet metal screws from the left case side.
2.Carefully remove the left case side.
3.Conduct this test with the engine OFF.
4.Remove leads #252, #253, #224 and #235 from relay CR1. See Figure F.7.
5.Using the 12VDC power supply, apply 12VDC to the coil terminals “A” and “B” of the relay.
6.Check visually to see if the relay is operat- ing when voltage is applied to the coil ter- minals. If the relay IS operating, proceed to step #7. If the relay is NOT operating when coil voltage is applied, then check the resistance of the coil. Normal coil resistance is 100 to 150 ohms. If the relay coil is “shorted” or “open,” the relay will NOT operate. Replace the relay.
7.With 12VDC applied to the relay coil, use the ohmmeter to check for continuity (zero ohms) from terminals #4 to #7. If zero or a very low resistance is measured, the con- tacts are okay. If a high or infinite resis- tance is measured, the contacts are faulty. If NO voltage is applied to the coil termi- nals, the resistance from #4 to #7 should be infinite.
8.Install the left case side using the 5/16” and 3/8” nut drivers and sheet metal screws.
RANGER
