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Tool Talk Discussion Forum

Installing/adjusting mower deck on 317

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jason

07-12-2004 08:26:21




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Need some help. Just bought a used JD 317 in good shape and after I installed the mower deck it seemed like it won't level off and is always 'tilting' forward. when I try to mow this 'tilting' causes the front blade to cut lower than the other two. when I lower it all the way it scalps. what am i doing wrong?




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Throop

07-13-2004 05:02:09




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 Re: Installing/adjusting mower deck on 317 in reply to jason, 07-12-2004 08:26:21  
Jason:
On my 318 & 322 (similiar to 317?) the rear mount links "L" shaped can get flopped around and the rear of the deck will be too high. Check the "L" brackets and be sure they are set so the mounting point for the deck is closest to the ground. If you fiddle with them you will see what I mean.

Hope this helps.



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Bob

07-12-2004 08:39:01




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 Re: Installing/adjusting mower deck on 317 in reply to jason, 07-12-2004 08:26:21  
Tighten up the clevis ends on the arms that extend rearward from the drive "mule" and attach to the front of the deck.

The front of the deck should be SLIGHTLY lower than the rear.



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jason

07-12-2004 08:48:39




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 Re: Re: Installing/adjusting mower deck on 317 in reply to Bob, 07-12-2004 08:39:01  
Bob, thanks much for a prompt reply. Bob I tighted them all the way up and still have the problem???



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Bob

07-12-2004 09:02:20




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 Re: Re: Re: Installing/adjusting mower deck on 317 in reply to jason, 07-12-2004 08:48:39  
Is the front of the deck bent forward, where the clevises attach? (There is some variation in mounting hardware for these decks, but I THINK if you had the wrong parts it would not attach, or be even farther off than it sounds like yours is.)

Also, the deck itself is known to bend where the spindle bearings attach, especially around the middle spindle. Have you taken a good look at that?

When checking out one of these decks, I take it off the tractor, and tip the deck upside down, and shim it up with warious wood blocks, and check with a small level to verify that the deck is level side-to-side, and front-to-back. Then I use a small magnetic level (or angle guage) set on the face of the blade hubs to check if the spindles are level with the deck. If one or more spindles are NOT level with the deck, remove the offending spindle, and use a hammer to straighten out the sheet metal around the spindle hole, and reassemble and again check with the level. I have on occasion had to use a flat washer as a shim, between one of the "ears" on a spindle bearing, and the deck to get the spindle "true" with the deck.

Once you get the spindles all level, install the blades, and verify that the tips of the blades are level with each other, where they pass close too each other. Make sure you don't have a bent blade.

When the deck is all trued up like this they really cut nice!

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jason

07-12-2004 09:09:40




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 Re: Re: Re: Re: Installing/adjusting mower deck on in reply to Bob, 07-12-2004 09:02:20  
Thanks Bob, I'll check!



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