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TROUBLESHOOTING & REPAIR
OUTPUT RECTIFIER BRIDGE TEST (continued)
FIGURE F.5 – LOCATION OF OUTPUT RECTIFIER DIODE LEADS
Left side |
| Right side (+) |
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TEST PROCEDURE
1.Using the 5/16” and 3/8” nut drivers, remove the sheet metal screws from the right and left case sides.
2.Carefully remove the right and left case sides.
3.Conduct this test with the engine OFF.
4.Locate the two halves of the output rectifier. The negative plate is located on the lower left side of the machine behind the case front. The positive plate is located on the lower right side of the machine behind the case front. See Figure F.5.
5.With the 1/2” wrench, remove the nuts and washers holding the diode pigtails and the heavy
6.Electrically isolate the diode pigtails by carefully bending them out into “free air.”
7.With an ohmmeter or diode tester, check each of the four diodes from their pigtails to their respective heat sinks.
8.Reverse the tester leads and check the diodes again. Diodes should have a low resistance in one polarity and a very high resistance in the opposite polarity.
9.Replace any “shorted” or “open” diode as the tests indicate.
10.Reconnect the diode pigtails and heavy leads to their respective studs.
11.Reinstall the left and right case sides using the 5/16” and 3/8” nut drivers and sheet metal screws.
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RANGER
