Jinma 2425 Clutch stop bolt

[Diesel dog]

Hi I just adjusted my clutch on my Jinma 2425 2 stage clutch and am curious does anyone know if I should adjust the clutch stop bolt. The clutch seems to be operating fine one inch free travel half way tractor stops and all the way pto stops, pto engages with some grinding (is this normal) but i am curious because there seems to be a fine area in adjustment if i should be adjusting that bolt. If someone knows the procedure to adjust these in the tractors it would be appreciated thanks

 

[quicksandfarmer]

The stop needs to be adjusted when the clutch is adjusted.

What I did: With the engine off, remove the clutch interlock switch. Have a helper push down on the clutch against the stop bolt. Engage the PTO, and try turning the PTO shaft by hand. Adjust the stop bolt until the PTO disengages completely, but only just. Then reinstall the clutch switch and adjust it so that when the clutch pedal is against the stop the switch is closed.

 

[RonMar]

The only time I would adjust the stop bolt would be after all the other adjustments are complete. I would start with the pedal freeplay/lever to throwout bearing spacing. If set correctly(around .1" between lever and bearing face with pedal all the way up), this should result in about 1.5" of pedal freetravel and the main gearbox clutch being fully disengaged when the pedal reaches about 1/2 way down. Next comes the PTO clutch adjustment. With the clutch pedal held at the point where the main clutch disc is free/fully decoupled(1/2 way down), the PTO clutch nuts should be adjusted to just start to lift the PTO pressure plate at this point. A little operational trial may be needed to refine this relationship. The end travel stop is then adjusted as Quicksand describes so that the pedal can only lift the PTO pressure plate just far enough to fully release the PTO disc as it reaches the endstop. Setup this way, full pedal allows you to shift the PTO, and half pedal allows you to shift the gearbox without effecting the PTO engagement