"I have an Electric Clutch and my Blades will not engage when I operate the PTO switch."
- Turn the engine off and remove the key.
- Check for physical damage; anything look bent?
- Is the deck belt intact?
- Spin the pulley on the bottom of the clutch. Does it spin freely?
- There could be mud or grit stuck in the clutch.
- There is a drive key between the clutch and the shaft. Has this key been sheared?
- When you pull the PTO switch does the clutch make a "click"?
When you sit in the seat and turn the key, one click from off to run, you will hear a faint click. That faint click is the fuel shut off valve under the carburetor. It is turning on and off when you cycle the key from off to run. Do not confuse this click with the clutch click.
Leave the Key in the Run position, cycle your PTO Switch on and off. You will hear a click. This click will be twice as loud as the fuel switch click. This louder click is the Clutch engaging. If you do not hear this click, the PTO switch may be bad or the Clutch may be bad. This is assuming your battery is good and fully charged and that your Key Switch is functioning correctly.
PTO Clutch will Not engage or stay engaged.
There is a very fine discussion on evaluating electric clutches at this site:
My JD tech manual, which covers the entire LA 100 series, agrees with the electrical specifications. It states that the Electric PTO Clutch should show the following:
- Resistance 3.7 ohms
- Current Draw 3.25 amps.
- It does not give the air gap.
It does include a note to check the PTO Clutch Key for damage or if missing. So there is a drive key between the PTO Clutch and the shaft. Additionally, it recommends checking the tightness of the cap screw. That's the screw or bolt that holds the clutch on the shaft.
Fixing Electric Clutches
- Cap Screw torque 55 lb-ft (75 N.m).