Jinma clutch does not disengage: Chinese Tractors -- Jinma Farmpro Agracat  -- Chinese Tractors Discussion Forum and Review Jinma clutch does not disengage: Chinese Tractors -- Jinma Farmpro Agracat -- Chinese Tractors Discussion Forum

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Discussion Boards > Active Subjects > Messages as Posted > Chinese Tractors -- Jinma Farmpro Agracat Forum

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 05-21-2008, 15:22 Post: 153846
Biokirk



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 Jinma clutch does not disengage

I went to start my farm pro today and it wouldn't crank. I discovered the clutch won't disengage. It starts in neutral ok. If I put it in a low gear the tractor starts and begins moving. Its like the cltch isn't working. Any ideas?






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 05-21-2008, 16:51 Post: 153848
Murf

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 Jinma clutch does not disengage

That's caused by the clutch seizing to the pressure plate and is caused by rust.

Most tractors have a gizmo of some form, usually a little hook, that allows you to depress the clutch pedal and lock it in the down position to prevent exactly that situation.

Now you have to free it up.

In some cases merely putting the tractor in gear (with the engine off), depressing the clutch and giving it a couple of good tugs with another tractor or a truck will break it free.

Likewise, chaining it to something leaving a little slack and VERY CAREFULLY putting it in gear with the clutch depressed will shock load it enough to pop it loose.

If not, get out the wrenches.

Best of luck.






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 05-29-2008, 13:03 Post: 154052
Biokirk



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 Jinma clutch does not disengage

Thanks for the response. I never heard of that happening. Jarring it didn't work. Since I posted the original message I discovered that my clutch pedal had 3" of free play. I adjusated it to 1 " before trying your suggestion. My guess is something is broken. Any more ideas?






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 05-29-2008, 15:54 Post: 154056
greg_g



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 Jinma clutch does not disengage

Before you do anything, check the QD (quick disconnect) fitting on the hydraulic pump pigtail. It's on the right side of the engine, about a foot aft of the pump. If that QD decides to open by itself (they're notorious for that) the deadheading pump can put a serious hurt on the starter motor.

If that's not the issue, we can revisit the clutch adjustment

//greg//






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 05-29-2008, 16:34 Post: 154057
auerbach



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 Jinma clutch does not disengage

I've heard that you might try whacking the outside of the clutch housing with a sledge. Or, if there's a front loader, driving it (slowly) into an immovable object. Or drive it long and hard on a hot day to heat everything up.






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 05-29-2008, 17:17 Post: 154059
greg_g



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 Jinma clutch does not disengage

Quote:
Originally Posted by auerbach | view 154057
I've heard that you might try whacking the outside of the clutch housing with a sledge.

Positively absolutely definitely not recommended !! The Chinese housings are cast

//greg//






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 05-29-2008, 17:51 Post: 154060
Biokirk



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 Jinma clutch does not disengage

I tried hooking it to a tree and backing it away with the clutch pushed in. No luck with that. Keep in mind the tractor worked fine the last time I used it. I measured the clutch free play at 3 inches after this first occurred and adjusted it to 1 inch. I do have a FEL, is there any way to see the clutch were I could tell if clutch and pressure plate are stuck together?






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 05-29-2008, 18:15 Post: 154061
kwschumm



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 Jinma clutch does not disengage

Most vehicles with clutches have a weep holes at the bottom of the bell housing or access panels somewhere that can be removed. The weep holes are often pretty small. If you crawl under the tractor and shine a light into the bell housing while someone presses the clutch pedal you might be able to see if the disk moves or not.






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 05-29-2008, 19:36 Post: 154063
greg_g



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 Jinma clutch does not disengage

There are two rectangular access ports, one on each side of the bellhousing. They're the ones with the vents cut into them. Each is held in place by four 12mm bolts. Open either/both sides and shine a flashlight forward. There might be a chance you can see what's happening at the flywheel

Be advised though, that the gaskets behind those two plates will almost certainly have to be replaced.

//greg//






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 05-29-2008, 22:08 Post: 154067
kwschumm



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 Jinma clutch does not disengage

Quote:
Originally Posted by greg_g | view 154063
There are two rectangular access ports, one on each side of the bellhousing. They're the ones with the vents cut into them. Each is held in place by four 12mm bolts. Open either/both sides and shine a flashlight forward. There might be a chance you can see what's happening at the flywheelBe advised though, that the gaskets behind those two plates will almost certainly have to be replaced.//greg//



Doesn't seem that those gaskets would be critical, maybe to keep water from dripping inside the bell housing. It would probably suffice to just put some sealant there instead. What am I missing?






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Discussion Boards > Active Subjects > Messages as Posted > Chinese Tractors -- Jinma Farmpro Agracat Forum

Thread 153846 Filter by Poster:
auerbach 1 | Biokirk 17 | Chief 2 | chipuren 1 | greg_g 10 | kthompson 4 | kwschumm 4 | Murf 1 |




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