I have a yardman 13.5HP 38in. When i push the brake pedal (clutch pedal) all the way down and place in park and the release the pedal my tractor takes off at full speed. It does not matter what gear i have it in it still moves at full speed ( reverse or froward) It is like all my gears are stripped or something. Can anyone help
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Re: Clutch ont engaging
I would bet that the Torque converter, (which is the big pulley, with a wheel in between). Has become jammed, and needs freeing off. Due to the fact, that they can't be lubricated. You will probably need to to remove it, completely, to do this. However, it's not too painful a process. Hope that's solved it:)
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Sorry no diagram. But here is how it works. In the start position(Power) the wire goes to the start fuse, from the fuse it goes to the clutch pedal switch. Push the pedal and it goes to the starter relay. On the other end is ground. If it is good it pulls the relay closed. On the closed end is battery power to the starter.
You would depress the clutch/brake pedal all the way down and then pull or activate the brake engage lever or linkage. To release it normally all you have to do is fully depress the clutch/brake pedal and the linkage or lever will automatically disengage.
If it is the park brake not releasing it might be a brake shoe that is not releasing. Put the vehicle in reverse and pay the clutch engagement (release - push down) to induce a oscillated motion to the vehicle. The brake should release. Servicing of the brakes should be done as soon as possible as binding should not occur when the park brake is used.
Well, it would shift easily with engine off, because the transmission input shaft is not turning. Engine running and clutch engaging good, the input shaft would again be stationary and allow smooth shifting. What you have to determine is if the clutch disc or pressure plate is bad (a new clutch is needed), or if the pedal hydraulic system has a malfunction. When you push the pedal down, a rod from the top of pedal pushes into the clutch master cylinder bolted to the firewall under the hood. This cylinder has a reservoir filled with brake fluid. When the rod forces fluid from the clutch master down a steel line and into the clutch slave cylinder down on the transmission bell housing, the hydraulic pressure forces a plunger from the slave cylinder to extend and push the clutch fork lever a small amount, enough to force the clutch release bearing (aka throw-out bearing) against the pressure plate. This relieves pressure on the clutch disc and input shaft becomes stationary for easy shifting.
Clutch plate and pressure plate seem to be too weak to pull the car. To test the clutch plate, park the car on flat surface. Pull the hand brake up, start the car, depress the foot brake pedal, depress the clutch pedal, put the car in 1st gear, press the gas pedal and leave the clutch pedal at once, while keeping the brake pedal depressed.
Follow one of the two following statements:
1. Engine does not shut down and remain start. (Clutch plate, pressure plate and clutch bearing defective - Replace all as a set)
2. Engine shuts down. (Clutch system is OK and does not require any repair).
Fit 4th gear Release hand brakes on strait floor with open hood and push the car back and Forward to see if the engine engage your gear box if is not your clutch is back to front.if engage press the clutch pedal to make release of the gear,notes mechanical clutch cable or hydraulic system. check Release bearing arm position.
2000 S-10: brake functions properly while pedal is held down, but when I remove my foot, the brake is released. The following is not a repair so much as a solution to the basic problem and I guess it won't pass scrutiny of any state inspection.Nevertheless, this idea may skip around the automatic pedal stop malfunction and buy you some time while a proper part replacement is arranged. The release cable ends at the ratchet assembly by the pedal and the lever which receives it can be pushed forward before depressing the pedal thereby engaging the stop which will hold the pedal down and keep the brake engaged. There is no click, or catch evident when the release lever is moved forward and it only moves a little bit. Not the easiest reach from the driver’s seat. Also, the release cable is likely to jump out of its place if you just reach blindly and push. From what I've read on this site, there are some design issues with the ratchet mechanism that commonly lead to failure of the pedal stop function. Hopefully this will help those who still want to park on a hill.
Check your clutch fluid level, sometimes a seperate reservoir (drivers side on firewall), some clutch systems take fluid from the brake system (check brake fluid). If thats ok then the clutch slave may be failing.
If the clutch fluid is low refill it and check for leaks (or just wait till the symptom comes back). If it's happens often then theres a leak in the line or the slave somewhere.