62C deck idler upgrade
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    Zebrafive's Avatar
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    62C deck idler upgrade

    I saw in JDparts that some changes/upgrades had been made on the 62C deck (what's on my x485)The changes happened serial number 300,001 and up.

    Being a sucker for making improvements, I bought the parts to convert mine.

    The two idler pulleys were replaced. Instead of being flat (back side of the belt) the new ones are grooved. Since the 62C deck uses a hex section belt, this makes sense.

    Also changed was the tension spring, it's bigger/heavier and how it hooks to the tension arm. They had used a stamped steel piece painted yellow, that changed to round spacer that goes on the idler bolt, probably less expensive to make and still does the job. . Now they use a longer bolt, M8 x70mm verses M8 x 60mm, (to accommodated the spacer) and a spacer (for the tension spring to hook to) to mount the idler, so the spring pulls directly on the center of the idler.

    Here's a parts list

    AM147272 Idler you need two
    TCU27776 Tension spring
    M111180 Spacer
    19M7803 Cap Screw

    I cheaped out on the bolt and bought it local for about 1/2 of JD's price

    Installation is easy. It took about 1/2 hour including lots of stops for pictures. No pictures would half the time.
    The fixed idler is simple R&R the old and replace with the new. The bolt is carriage bolt, so only a 12mm wrench or socket is needed.
    The tensioned idler takes more steps. The tension arm has to be removed to get the bolt the idler is on out. Had JD reversed the bolt the tension arm could stay on. First remove the tension spring. There is a rubber cap over the pivot for the tension arm, it pulls off. The a clip ring, washer and a felt washer. The idler bolts to the tension arm. Remove it, the nut is 12mm. Use the longer bolt, original spacers from the old idler and swap the yellow angle bracket for the new spacer, reuse the original nut. Re install the tension arm, felt washer, washer, clip ring and dust cap. I greased the pivot shaft before I put the tension arm back on.
    Install the tension spring and you finished!

    The old idler pulleys are black, the new silver. So you should be able to tell in the pictures. Also the old one on the tension arm is a smaller diameter than the fixed one. The replacements are both the same size and larger than the smaller one on the tension arm, which should help belt life.
    Attached Thumbnails Attached Thumbnails P1030093.JPG   P1030095.JPG   P1030097.JPG   P1030099.JPG   P1030103.JPG  

    P1030106.JPG   P1030113.JPG   P1030115.JPG   P1030118.JPG   P1030132.JPG  

    Last edited by Zebrafive; 08-16-2019 at 01:40 PM.
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    John Deere 2030 w/245SL Loader
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    John Deere 285 50" deck Stolen May 2017
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    Ford F250 4x4 bought new 1978

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    Zebrafive's Avatar
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    more pictures

    This upgrade cost about 1/2 the price of a new belt. I hope it gives longer belt life to make it worth it!
    Last picture is old parts, notice the pulleys are two different sizes, the larger was the fixed idler, the smaller was on the tension arm. Replacements are the same size.
    Attached Thumbnails Attached Thumbnails P1030122.JPG   P1030126.JPG   P1030129.JPG   P1030130.JPG   P1030136.JPG  

    P1030138.JPG   P1030140.JPG  
    Last edited by Zebrafive; 08-16-2019 at 01:42 PM.
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    John Deere 2030 w/245SL Loader
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    John Deere 285 50" deck Stolen May 2017
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    Ford F250 4x4 bought new 1978

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    Zebrafive's Avatar
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    I do run with the black plastic pulley covers removed, makes the top of the deck easier to clean. I blow it off after every mowing.
    Last edited by Zebrafive; 08-16-2019 at 03:57 PM.
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    John Deere 2030 w/245SL Loader
    John Deere 6415 w/640SL Loader
    John Deere 285 50" deck Stolen May 2017
    John Deere x485 62" deck AWS
    Kawasaki Mule 2510 4x4 bought new 1996
    Ford F250 4x4 bought new 1978

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    Chuckv's Avatar
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    I am sure I would be tempted to use a large flat washer on top of the spacer to make sure the spring hook does not travel up and off the spacer -- otherwise it looks like a sensible upgrade.

    How many hours do your have on your deck? I had one of these decks on a 2004 x495 that I bought from a local cemetery and that tractor had over 2500 hours of relatively hard use...I also needed to replace the gearbox isolation parts and some brackets when I replaced the expensive belt. Here are some pictures:
    Click image for larger version. 

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    Chuck
    Last edited by Chuckv; 08-16-2019 at 02:12 PM.
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    TJR345's Avatar
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    Quote Originally Posted by Zebrafive View Post
    I do run with the black plastic pulley covers removed, makes the top of the deck easier to clean. I blow it off after every mowing.
    Do you have the anti blowout kit on your deck. Helps keep the deck clean and get a better cut. Thanks for the info,I'll look into the upgrade for my 2002.
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    MeagerHair's Avatar
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    Thank you, that is the same deck I have on my 2305. She 400hrs when I got it and I think all of those 400 were mowing. I have put another 69 hrs of mowing onit. I have to replace a spindle so I guess I should follow your upgrade lead when I buy parts. I had a stick flip in the plastic cover with the belt. I think it was original belt and was dry rotted. The belt shredded on that stick. I noticed the belt vibrates and slaps thedeck at times. I think the spindle song with these suggested parts should fix her mother cr.
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    sennister's Avatar
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    Wonder if the same upgrade is available for the 54? Not that I use it anymore but I have been meaning to go through it and clean it up.


    JD Z950R 60" Deck with DFS Collection System

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    Zebrafive's Avatar
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    Quote Originally Posted by Chuckv View Post
    I am sure I would be tempted to use a large flat washer on top of the spacer to make sure the spring hook does not travel up and off the spacer -- otherwise it looks like a sensible upgrade.

    How many hours do your have on your deck? I had one of these decks on a 2004 x495 that I bought from a local cemetery and that tractor had over 2500 hours of relatively hard use...I also needed to replace the gearbox isolation parts and some brackets when I replaced the expensive belt. Here are some pictures:




    Chuck
    Good idea for the washer (JD does not use one) I have room on the bolt to add one. 600hours on the deck.

    Quote Originally Posted by TJR345 View Post
    Do you have the anti blowout kit on your deck. Helps keep the deck clean and get a better cut. Thanks for the info,I'll look into the upgrade for my 2002.
    Yes I put the anti blowout kit on it, it reduced the build up, but did not eliminate it. If JD offered front fenders for AWS, I would try them too.

    Quote Originally Posted by sennister View Post
    Wonder if the same upgrade is available for the 54? Not that I use it anymore but I have been meaning to go through it and clean it up.
    Check JDparts and see if two different idler P/Ns are offered for the same position. I have not checked, but bet they upgraded it too.
    J
    John Deere 2030 w/245SL Loader
    John Deere 6415 w/640SL Loader
    John Deere 285 50" deck Stolen May 2017
    John Deere x485 62" deck AWS
    Kawasaki Mule 2510 4x4 bought new 1996
    Ford F250 4x4 bought new 1978

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    Zebrafive's Avatar
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    Quote Originally Posted by sennister View Post
    Wonder if the same upgrade is available for the 54? Not that I use it anymore but I have been meaning to go through it and clean it up.
    I checked JDparts

    48C and 54C also had an idler change to the same idlers, longer bolt, and spacer to replace the yellow stamped metal part the tension spring currently hooks to. But they do not change the spring on these two models. You can continue to use your current spring and save $16!

    I also checked the specs on the spring used on the 48C, 54C, and 62C serial number 300,000 and lower, P/N M148163. 62C serial number 300,001 and higher got spring P/N TCU27776

    The specs for P/N M148163 are: 10.197" free length, 14.218 LBF/IN, (pound or lb, foot/inch); tension installed 16.389 LBF
    The specs for P/N TCU27776 are: 9.816" free length, 15.417LBF/IN, (pound or lb, foot /inch); tension installed 20.233 LBF or 23% stronger!
    J
    John Deere 2030 w/245SL Loader
    John Deere 6415 w/640SL Loader
    John Deere 285 50" deck Stolen May 2017
    John Deere x485 62" deck AWS
    Kawasaki Mule 2510 4x4 bought new 1996
    Ford F250 4x4 bought new 1978

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    Zebrafive's Avatar
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    Another look at JD parts and when they changed the tensioned idler, they also added a washer key 17 P/N M146490

    So I need to buy that washer, and take it apart again to install it.

    JD parts shows two key 17. The parts list has quantity 1 for serial number 300,000 and lower, and quantity 2 for serial number 300,001 and higher.

    I just caught this mistake

    The one marked with a red arrow is the second one used on the serial numbers, 300,001 and higher. Note how on one idler the washer is above key 10 and the other below key 10. No idea why
    Attached Thumbnails Attached Thumbnails 62cwasherM146490.PNG   62c10.PNG  
    Last edited by Zebrafive; 08-17-2019 at 04:14 PM.
    rydplrs likes this.
    J
    John Deere 2030 w/245SL Loader
    John Deere 6415 w/640SL Loader
    John Deere 285 50" deck Stolen May 2017
    John Deere x485 62" deck AWS
    Kawasaki Mule 2510 4x4 bought new 1996
    Ford F250 4x4 bought new 1978

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