John Deere D140 cutting height problem.


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Old 05-16-24, 02:33 PM
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John Deere D140 cutting height problem.

I just changed the mower deck and transmission belts. Oh, what fun!
I have everything back together and the transmission is working perfectly.
The mower deck has a problem though. After mounting it, I found that the height adjustment
is at the highest level, even though the deck is on the ground (basically).
The lever cannot be pushed down, using moderate force.
What could I have messed up, and how can I fix it?
Preferably without taking everything apart...
All ideas most appreciated!

The situation is somewhat better. I can get the deck up to normal 3" high setting, but no higher with the adjuster all the way up.
 

Last edited by Tom Lusk; 05-16-24 at 03:40 PM. Reason: Some improvement,
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Old 05-16-24, 04:44 PM
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What all did you take off to change the belt? It's tough to guess without knowing what was off and how it looks now.
 
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Old 05-27-24, 02:50 PM
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Sorry for the late reply.
It looks like the height adjustment is now the least of my tractor problems.
I put about 2 hours on the tractor/mower. Everything went smoothly, until:
the engine shut down suddenly while mowing, accompanied by some rattling metal sounds.
No power at all. The fuse looked iffy, so I changed it. Still no power.
Looked around underneath and found the electrical connection (plastic plug) to the transmission was hanging loose. One of the two tabs that hold the plug in place was broken off.
I reconnected the plug, but still no power anywhere.

When I had placed a new transmission drive belt on the tractor, it was necessary to disconnect the electrical system by unplugging the plug at the tranny, so the tranny could be dropped down to allow the belt to be installed. I must have damaged the plug while taking it off or putting it back on.

Anyways is there another power cut off aside from the fuse? Could the nasty noise I heard be the mechanisms inside the tranny self-destructing?
All suggestions, ideas most welcome.
 
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Old 05-27-24, 03:42 PM
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You dropped the transmission just to change the belt? That's not required but still if you went through all that to change the belt it, that shouldn't make the transmission come apart. Do you hear a click or anything when you turn the key? Is there oil in the engine?
 
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Old 05-27-24, 05:26 PM
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No click or anything. Oil is good.
 
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Old 05-27-24, 07:08 PM
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Will the engine flywheel turn by hand, and if so, do you feel compression or does it just turn easily?
 
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Old 05-28-24, 08:46 AM
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I definitely feel compression.
 
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Old 05-29-24, 11:07 AM
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I just checked and the lights don't even come on!
Checked battery and connections - all is good.
I don't know what else I can check.
 
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Old 05-29-24, 08:30 PM
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Have you checked for power at the fuse? Check to see if the new fuse blew?
 
 

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