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Electric clutch overheating. Bobcat ZTR

Discussion in 'Mechanic and Repair' started by HenryB, Sep 24, 2009.

  1. HenryB

    HenryB LawnSite Bronze Member
    Posts: 1,828

    Any idea what would cause my electric clutch to be overheating? It still works but I can see plastic melting where the wire harness connects to the clutch help.:confused:
  2. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    Could be a bad connection where it plugs into the harness/ A bearing in the clutch starting to fail or it's in need of adjustment, Being out of adjustment could cause it to draw more amps to stay engaged thus cause over-heating.

    Check THIS post out.
  3. pugs

    pugs LawnSite Gold Member
    Posts: 3,022

    Wouldnt be out of adjustment as they have allways used Warner clutches to my knowledge that require no adjustment.

    Check for loose connections. Check the fuses, make sure they are the proper sizes. If you already see melting its probably too late and the clutch wont last much longer.
  4. Remosid

    Remosid LawnSite Member
    Posts: 4

    thats bad info. A magnet is energized to engage the clutch. Current draw is the same regardless of adjustment.
  5. demhustler

    demhustler LawnSite Bronze Member
    Posts: 1,322

    when it's old (worn)- it's overheats and shuts
    when it s new - it shouldn't ...

    btw. it shouldn't make clunking noise when it's not old, though some do ...
  6. ricky86

    ricky86 LawnSite Bronze Member
    Posts: 1,840

    Take a ohm reading. Should be 2.5-4.0 ohms @ room temp. Any more or less you will need a clutch very soon. Along with R/R suggestions, melting connections and wires mean something is going wrong with the field (electromagnet). Meaning a possible excessive amperage draw.
  7. fixer67

    fixer67 LawnSite Silver Member
    Posts: 2,100

    Check your voltage. I had a voltage regulator mess up and not only did it over charge the battery and burn it up but fried the PTO clutch as well.

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