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Discussion Forum

Repair a mower deck

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Nathan

07-11-2002 12:12:04




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I've got a 46" mower deck that has rust pits in it. I had it blasted and a few tiny holes come through. Probably 25 spots of paper thin areas. And a section that looks kinda like bread. Bunch of tiny holes, less than pencil lead size, but none through the metal. All this is where the belt covers used to be. I removed 'em when I bought 5 or 6 years ago.

Any ideas on a repair? I thought about spotting the through holes with a wire welder and maybe the thin spots. Can lead be melted and spread over the "bread" area? Or would bondo be better?

I'm trying to keep from spending $630 at JD just for the sheet metal. It's on a 140.

Thanks for your time.

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TP from Central PA

07-11-2002 14:35:26




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 Re: Repair a mower deck in reply to Nathan, 07-11-2002 12:12:04  
I repaired a good many Wheel Horse decks that have had the same problems. I always cut out the old metal with sheet metal shears or a torch. I use the cut out piece to make a template on the new metal. I then cut that metal alittle oversized to make up the difference. I then just shape if needed, grind, and then weld in. I wouldn't waste my time trying to fill with a Mig, if you can weld with a Mig I would shoot for this method. I never work with J.D's decks so I couldn't tell if they are squared off like W.H and Cub Cadet or rounded like some I have seen.

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RB/CT

07-12-2002 08:54:09




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 Re: Re: Repair a mower deck in reply to TP from Central PA, 07-11-2002 14:35:26  
Iv'e used a product called Marine Tex, on holes in metal, it will harden stronger than the steel. It is just a two part epoxy, like JB Weld or others. It won't stand up to vibration, but i believe would work on a mower deck. It would not absorb water like Bondo does. Good luck.



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Nathan

07-11-2002 20:15:56




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 Re: Re: Repair a mower deck in reply to TP from Central PA, 07-11-2002 14:35:26  
Yeah that's the problem TP. It rolls both ways, vertical and horizontal, plus the spindle mount areas are recessed. I can cut and patch, but it'd be easier to fab a whole new deck that is squared off. And I've thought about doing that. Thanks!



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DON LC

07-12-2002 05:32:38




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 Re: Re: Re: Repair a mower deck in reply to Nathan, 07-11-2002 20:15:56  
If the rusted area is not effecting the strength of the deck,just use a little bondo and paint it.....



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rhouston

07-15-2002 11:32:29




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 Re: Re: Re: Re: Repair a mower deck in reply to DON LC, 07-12-2002 05:32:38  
for bread area maybe fiberglass resin ?????



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Thomas Rodgers

07-18-2002 19:57:41




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 Re: Re: Re: Re: Re: Repair a mower deck in reply to rhouston, 07-15-2002 11:32:29  
You can melt brass or brazing material into the weakened area quite easily with a torch and not damage the parent metal.



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Thomas Rodgers

07-18-2002 20:09:58




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 Re: Re: Re: Re: Re: Re: Repair a mower deck in reply to Thomas Rodgers, 07-18-2002 19:57:41  
I wouldnt use bondo. It is polyester most of the time and most plastics won't have the abrasion resistence or toughness you need. You can find copper brazing materials and others that have a lot of strength, but maybe a high flow brazing material just for filling in and then the higher temp stuff for resurfaceing... Good luck



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