hello zetor 1988 7211 dooralong australia

[jack schlachter]

Hi I have owned my tractor for 10 yrs and it has given me very few problems.
however this afternoon the clutch stopped working.There is pressure there but depressing the clutch does not allow me to change gears . If i am in gear then depressing the clutch does not stop the tractor from moving.
Help
jack

 

[Joachim]

Hello,

If the clutch slave cylinder at the bottom is OK (tight), then it can almost only be the clutch master cylinder at the top behind the clutch pedal. Maybe this is leaking (DOT3 brake fluid)?

 

[diyfarmer]

You need to see if you have a leak first, if the vessel has no fluid, top it up and try pump the pedal a few times and see if it give any pedal. If your vessel is empting you'd got a leak. If the fluid is still good, you have more of an operation ahead.

 

[jack schlachter]

Hi thanks for the responses .The brake fluid level has not moved.

 

[diyfarmer]

.The brake fluid level has not moved.

If your not leaking any fluid, looking like your tractor needs an operation so. The clutch plate needs replacing, if it grinds getting a gear, or won't stop when you press the pedal.

 

[Joachim]

Sorry, but you can't say/know that.

If the brake fluid doesn't decrease and the clutch doesn't disengage, there can be several reasons for this:

• one of the three or more clutch fingers is broken or misaligned (the pressure plate no longer moves far enough, the clutch disc doesn't have enough space when the clutch is disengaged and continues to rotate (without traction))
• teeth on the gearbox input shaft and/or the clutch disc driver are worn and/or rusted and/or very dirty (the pressure plate no longer moves far enough, the clutch disc doesn't have enough space when the clutch is disengaged and continues to rotate (without traction))
• pilot bearing defective - this can lead to a drag effect and the gearbox input shaft can also rotate
• gearbox brake incorrectly adjusted or worn

Before the clutch disc driver wears out, the clutch lining will have long since worn out, which would then lead to a slipping clutch.

The 7211 could also have a converter, which could also be the cause of the problem described.

 

[diyfarmer]

Sorry, but you can't say/know that.

I said, it needs an operation, and all the things you mentioned, would require an operation. If it's not leaking brake fluid, it's not something you can fix without needing to spilt. I can't answer what the problem is any better without sitting on the tractor.

 

[jack schlachter]

Thanks everyone.
Bottom line is the tractor needs to be split.
Big job.looking at the cost of 70 hp tractors I reckon it will be worth doing.reckon whole job with new clutch is going to cost about US 2000.
Will let you know what the problem was

 

[Joachim]

Its not a big job - its a job you can do by self its not realy complicated and works without special tools.

Do you have a pallet truck or an engine mounting crane (one of those Chinese things will do)?
You have a right and a left hand?
You can spend one or max two days for repair? (I do this job often for others, I need around 6-7 hours for but other guys are faster as Iam the old man. )

You can do it by self.

Make photos from working steps so we can help you or give hints and save a lot of money.

 

[Joachim]

Two examples...





Of course, the cabin does not have to be dismantled I had to do that here because of other, more extensive repairs - so don't worry.