scag w/b electric clutch problem ?

Discussion in 'Mechanic and Repair' started by jes8, Jul 15, 2003.

  1. jes8

    jes8 LawnSite Member
    from nj
    Posts: 2

    any help is,greatly appreciated, my problem is , the blades engage fine when the mower is cool. if its heated up after mowing few lawns, then transported to next job site, if i turn the blade switch on, the blades wont engage , until mower is cooled down? i replaced the switch with a new one already. could it be a bad connection or bad electric clutch..thanks for any advice.
  2. A1 Grass

    A1 Grass LawnSite Senior Member
    Posts: 330

    I had the same problem with my SW32. I was told on this forum that the clutch may be adjusted too far out. Look down on the sides of the clutch and there are 3 (?) slots through which you can insert a feeler guage. You'll have to get the gap settings from someone else (I don't remember) but it fixed mine.

    BTW - I had a clutch loosen up and literaly fall out so check the center bolt and make sure the whole unit isn't just loose!
  3. Rustic Goat

    Rustic Goat LawnSite Bronze Member
    Posts: 1,194

    How old is this unit?
    'Clutch' might just be worn out, do you engage at 3/4 throttle like owner's manual recommends?
    It's no big deal or expense to replace.
  4. SWD

    SWD LawnSite Senior Member
    Posts: 989

    I had an intermittent clutch engagement problem on my scag 36"w/b. My problem ended up being the wiring harness wires were too small of a gauge of wire to handle the heat (routinely over 100*) which meant the resistence went way up and the clutch would disengage.
  5. A1 Grass

    A1 Grass LawnSite Senior Member
    Posts: 330

    I did have a plug connector melt-down that gave some of the same symptoms as well. Maybe pull apart some plug connectors and make sure they are in good shape?
  6. danzig

    danzig LawnSite Member
    Posts: 103

    I had the same problem. Fixed it by tightening the 3 bolts on the clutch. Turn (tighten) each bolt a quarter turn til you get the clutch to engage each time. A really easy fix. If that doesnt work check all fuses, wires,connections and switches. Good luck!!
  7. jes8

    jes8 LawnSite Member
    from nj
    Posts: 2


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