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Old 08-24-2012, 10:45 AM   post #1 of 12
Phat Phydeaux
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Default JD 425 54" mower deck problem.

I have several things going on with my 54" mower deck.

1. Front right support wheel has hit something like a tree, post, etc... and is pushed in a inch or so. The blade doesn't hit the inside of the deck. (thank you grandkids). How is the best way to straighten up this wheel bracket and also the top welds are broken loose.

2. The belt has been jumping of even prior to the grandkids attack on my wheel bracket. I see on e-Bay that bearings are available for $38ish. I want to put quality parts on if I need to rebuild the deck to stop the belt from jumping off, but I don't want to pay an arm and leg. Is there an aftermarket vendor that I can get spendels, bushing, washers, bolts, bearings etc.. Also does the decks use a race in the spindle for the bearings or not?

Does anyone have a good drawing of the 54" mower deck and parts with parts list? The one on the JD website parts section is so small I can see it.

Thanks,

Garry
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Old 08-24-2012, 11:45 AM   post #2 of 12
Dan33Klein
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Default Re: JD 425 54" mower deck problem.

Ive heard good things about the ebay bearings, i would give it a shot. you can put a bottle jack and a 2x4 on the inside of the deck to push the dent out to straiten the wheel. not sure on the race, someone will answer soon
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Old 08-24-2012, 12:16 PM   post #3 of 12
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Default Re: JD 425 54" mower deck problem.

The spindle bearings aren't tapered bearings, so they don't have separate races. Take the belt off and check each spindle (as well as the idlers) by hand for up/down play and side play; also, make sure the pulleys aren't bent in any way.
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Old 08-24-2012, 01:03 PM   post #4 of 12
mister moose
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Default Re: JD 425 54" mower deck problem.

I just rebuilt my 54 deck on a 425. New bearings, belt, gearbox. At 900 hours the gearbox failed, and several of the bearings were rumbling, the belt (Looked good until I had it off) was cracking all over, and even had a 1/2" section missing on one side.

You can probably find the spindle bearings on line. Unfortunately, I didn't write down the bearing number, and the shop that pressed them out threw them out as I didn't want them.

Here's what I have for part numbers:

Belt M112269 $83.83
Spindle bearing M110008 $14.58 (need 6)
Spindle seal ET15755 $8.89 (need 6)
Spindle bushing M110008 0.71 (need 6)
Idler pulley AM106627 $18.76
Idler pulley AM37249 $17.05
Spindle bolts 03M7186 $0.51 (Need 12)

If any of the axles in the spindle are trashed:
Spindle axle M122465 $19.18


A few hints:
The bearings press outward from the center of the spindle. You cannot press the top bearing out through the bottom, or vice versa.

Take a photo of the belt path before you remove it.

Change the gearcase oil while it's apart. 90W gear oil.

You can also buy a complete spindle assembly for about $100.

Have fun. A good impact wrench is recommended.
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Old 08-24-2012, 03:38 PM   post #5 of 12
mister moose
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Default Re: JD 425 54" mower deck problem.

Also,

I have the same issue with the fwd right wheel bent backwards, on mine the unsupported opening of the mower chute allows any repeated drag on the wheel to eventually bend it back. I concur on the use of a small bottle jack and a 2x4 to press it back to original shape. I'm thinking of welding a large 'L' bracket on the outside of the chute to add rigidity there, as it is an ongoing issue. Wouldn't necessarily blame the grandkids on that one.

You will need a small arbor press to press in all the bearings and seals, or take all the parts to a shop that has one.
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Old 08-24-2012, 07:09 PM   post #6 of 12
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Default Re: JD 425 54" mower deck problem.

Ouch on the price of the belt, Hate to see how much the one for my 48" is
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Old 08-24-2012, 07:12 PM   post #7 of 12
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Default Re: JD 425 54" mower deck problem.

i just fixed this on my 54" deck on my 455. I pushed it open with a bottle jack. Mine wanted to flex back but I made it work. In addition there is supposed to be a metal bracket that braces the opening. Mine didnt have it mounted when I purchased the tractor, but i have since installed it as it was in my spare parts box that came with the purchase.

See here: http://www.mytractorforum.com/showthread.php?t=250262

second page of posts has the bracket that is supposed to be in the chute opening.

nick
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Old 08-24-2012, 10:52 PM   post #8 of 12
69project
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Default Re: JD 425 54" mower deck problem.

I would check your belt out before redoing your spindles. Sometimes as a belt wears it starts jumping off, at least I have had that happen to me. I would also shop around for belt prices although most everything on a 425 tends to be pricey.
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Old 08-24-2012, 11:40 PM   post #9 of 12
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Default Re: JD 425 54" mower deck problem.

STICK WITH JD BELTS.........you can skimp elsewhere but insist on JD BELTS
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Old 08-25-2012, 07:14 AM   post #10 of 12
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Default Re: JD 425 54" mower deck problem.

I agree on the JD belts comment. I would shop various JD dealers though because when I first went looking for a belt for my 400, the local JD dealer wanted $90+ for it and then I found it on "Keeping it Green" for $46(same belt)...you may find a similar experience with the belt for the 425. I think some dealers feel they charge a little more for parts for discontinued tractors.
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Old 08-25-2012, 08:40 AM   post #11 of 12
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Default Re: JD 425 54" mower deck problem.

I'll third the JD Belts, I've used other brand belts on some of my other decks and they never hold up like the JD belts!
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Old 08-27-2012, 12:21 PM   post #12 of 12
Phat Phydeaux
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Default Re: JD 425 54" mower deck problem.

Thanks for all the info on repairing the guide wheel and deck, I will pull the deck off this evening and check it out.

I haven't bought a belt in two years but have found JD to the way to go. My local dealer has always been lower on cost than the internet guys. I believe in buying at home to help you neighbors when you can and I know the belts hold up better than the ones I have bought at Agri Supply.

I replaced my u-joint on the PTO drive shaft at the first of the summer and again my dealer beat the internet prices, even with out figuring in S&H. Before repairs to the drive shaft / U-Joint my shaft kept uncoupling and sometimes cause the belt to jump off. If there is any damage to a belt idler or pully this might very well be the cause. All one big WAG till I pull the deck and check it out but while having the U-joint shaft issue we didn't see any damage when making those repairs.

Stay tuned a report to follow. Thanks to all that replied, you guys are the best.
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