Go BottomDisengaging rear PTO
 | Coffield Knight
Join Date: Posts: 1 
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2000-09-02 19389
I find it very difficult to disengage the rear PTO after using my bushhog attached to my new 4300 John Deere. Even after fully pulling the throttle back to its slowest speed I have to yank the engagement handle very hard to disengage the PTO and it stops turning with a tremendous thud. This can't be good for tractor or mower. Any suggestions?
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| JerryGoucher
Join Date: Feb 2002 Posts: 100 NW AR
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2000-09-03 19423
Coffield,
Are you letting the mower blades stop turning before you try to disengage the PTO lever? The electric switch may be turned off at any time, but when you turn the lever off, you need to have the implement stopped.
JerryG ....
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| Coffield Knight
Join Date: Posts: 1
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2000-09-03 19445
Jerry- There is no electric switch that I'm aware of. You move the lever forward to engage the rear PTO. There appears to be two positions-halfway forward engages the PTO at slow speed -all the way forward locks into a higher speed. The problem arises when you try to pull the handle back to disengage. You have to pull so hard that the lever bypasses the mid position and goes into the lock or stopped PTO position. At this point the blades are turning quite rapidly and their abrupt stop is the problem.
Coffield ....
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| JerryGoucher
Join Date: Feb 2002 Posts: 100 NW AR
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2000-09-04 19467
Coffield
From what I have read the 4300 has independent PTO. Most tractors with independent PTO have an on and off switch on the dash in addition to the lever you have referred to. I must not be familiar with the type of set up that you have without a switch for the electro-hydralic clutch running the PTO.
JerryG
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley 
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2000-09-05 19494
A question that occurs to me is if the same thing happens when the cutter blades are stopped. Also, does the same thing happen if the engine rpm is at PTO speed? And, does the same thing happen when the transmission is is in neutral? If I had the problem on my Ford 1710 (manual tx with 2 stage clutch), I'd suspect the pto wasn't fully disengaging, and the clutch linkage needed to be adjusted.
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| Shawn in OK
Join Date: Posts: 1
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2000-09-05 19500
Coffield,
On my 4200 hydro, the PTO lever mover relatively easily from engage to disengage. If I get in a huge hurry while brushhogging and disengage too quickly, the blades certainly will come to a stop with a huge "CLUNK". I can't imagine going from fully engaged to full disengage at full power. I would say what you are experiencing is not normal and deserves a trip to the dealer. ....
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| Jim Warrell
Join Date: Feb 2002 Posts: 14
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2000-09-05 19515
Coffield, I too have a recently purchased JD 4300. The rear pto operates on my tractor exactly as yours. When using the bush hog mower the pto lever goes forwards quite easily. If you pull it back quickly the blades make a loud whack. I take my fist and bump the lever back an inch or two or until the pto light goes out. Then at an idle pull the lever back slowly and watch the driveshaft slow down. You still might get a thunk. There is nothing wrong with your tractor. Jim in Middleton ....
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| Coffield Knight
Join Date: Posts: 1
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2000-09-10 19670
Jim
Thanks for the suggestion of bumping the PTO engagement lever with your other hand when trying to disengage the PTO. This does allow me to move the lever slowly to the center without going all the way to the locked stop position which causes a jolt if the blades are turning too rapidly.
Coffield ....
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