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  #1  
Old 06-11-2009, 03:46 PM
NINER NINER is offline
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A couple of more JD 800 series problems

anyone having trouble from these two issues?
first the bolt that holds the idler pulley arm has either bent or broken on three different mowers.
second the mower deck drops a notch or two when hitting bumps in the lawn.

what has been done to fix these issues and has it lasted?
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  #2  
Old 06-12-2009, 11:36 AM
NINER NINER is offline
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Anyone??????
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  #3  
Old 06-13-2009, 12:11 AM
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Herrick Herrick is offline
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my idler pully bracket bolt for the drive system broke a few weeks ago on me, dealer took care of it. I asked why it broke and they had no clue.
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  #4  
Old 06-13-2009, 12:21 AM
nnj18 nnj18 is offline
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No problems with my 850.....how many hours on these machines??
Posted via Mobile Device
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  #5  
Old 06-13-2009, 12:32 AM
7625 7625 is offline
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I haven't had any problems like that, and I have a 830.
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  #6  
Old 06-15-2009, 10:49 AM
NINER NINER is offline
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Quote:
Originally Posted by nnj18 View Post
No problems with my 850.....how many hours on these machines??
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mine range from 500 to 600 hrs on them. i have replaced what is called a leaf spring and the other part that adjusts the mowing height on one mower in particular twice. the others haver been just the spring.
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  #7  
Old 12-05-2009, 11:03 PM
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rreyn1812 rreyn1812 is offline
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Broken bolt on deck lift mechanism of Ztrak 830a

At about 200 hours (1 year old), I noticed a broken bolt on the left side of the mower (Ztrak 830a) that is part of the deck lift mechanism. The head of the bolt just broke off, but it looked like a manufacturing problem with the bolt.

The original bolt was 12mm, but when looking at the new parts list, the replacement bolt is a 16mm. Therefore, a large portion of the deck lift mechanism had to be replaced to accomodate the larger, beefier bolts. Obviously, JD was aware of the problem and already had a solution and it was fixed under warranty.
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  #8  
Old 12-06-2009, 09:08 AM
JD7210 JD7210 is offline
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I have 800hrs on a Z830A and 450hrs on a Z850A and have yet to see those problems. Are most of you happy with your machines since the updates have been done? Overall we are satisfied with the updates, and have had no problems.
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  #9  
Old 12-06-2009, 09:42 AM
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ed2hess ed2hess is online now
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Try hardened bolts in places where you have broken bolts.
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  #10  
Old 12-06-2009, 10:16 AM
joslawn33 joslawn33 is offline
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Very happy with my 830 500hrs.
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