PROCEDURE FOR ELECTRIC CLUTCH ADJUSTMENT
Dixon has used two types of electric clutches. One type is the Borg Warner and the second one is the Ogura. Even though these clutches come from different manufacturers, the test procedures are the same for both. Few people realize that clutches have maintainance procedures to extend the life of the clutch as they wear over time. Below is the information to make these maintenance adjustments and also a procedure to check for a faulty coil. In the case that the clutch has failed a part, the entire clutch must be replaced since there are no parts available.
A. AIR GAP ADJUSTMENT
1.Remove the clutch from the engine. This is recommended because it is easier to verify the gap.
2.Locate the three rivet joints which fasten the leaf springs to the armature (figure 1).
3.Rotate the pulley until these rivet joints are located midway along the edge of the triangular field adapter (figure 1).
4.Locate the three holes in the brakeplate, one near each adjustment nut (figure 2).
5.Insert a .012 inch feeler gauge into one of the three windows. Be careful to position the feeler gauge between the rotor and armature faces (figure 3).
6.Tighten the adjusting nut adjacent to the window with the feeler gauge inserted until the gauge fits snugly between the rotor and armature. The gap should not be so tight that the feeler gauge cannot be reinserted after removal.
7.Repeat Steps 5 and 6 at the other two windows.
8.Recheck the air gap at each window and make minor adjustments as necessary to achieve a consistent .012 inch air gap.
9.Reinstall the clutch to the engine. Be sure to torque the mounting bolt back to 50 ft. lbs.
B. OHMS TEST:
1.Disconnect clutch from mower wiring harnass which is located on the right side of the mower frame.
2.Set the
3.The reading you receive should be between 2.4 to 2.9 OHMS.
4.If the resistance is outside this range the clutch coil is faulty.
5.If the clutch coil is faulty, the clutch must be replaced.
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