2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 278Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 278

FINAL DRIVE Front Gearcase Diagnosis Symptom: AWD Will Not Engage 1Check the gearcase coil resistanceTo test the gearcase
Ushaped insert that is pressed into the gearcase coverThe top of the coil should be seated below the Ushaped insertThe U-shaped
insert controls the pole gapIf the top of the coil is above the surface of the U-shaped insert it raises the armature plate,
thereby increasing pole gapIf the pole gap increases the coil will not be strong enough to engage the AWD systemIf this is
the cause order new Cover Plate AssemblyCutaway View of Gearcase Cover Front Gearcase Coil Resistance: 24 10 2Check the minimum
battery voltage at the GreyBrownWhite wires that feed the hub coil wiresThere should be minimum of 11.80-12.0 Volts present