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JD 730 Brake Drum

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charles

04-27-2003 13:38:02




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I have a 730 that i am trying to replace the brake shoes. I have two problems. First I can not get the drum off one side. I tried a puller with the brake on the tractor, but no success. Now i have the brake off the tractor and i tried supporting the drum between two pieces of metal and beating on the threaded portion trying drive it out of the drum, but still with no success. Is there a secret for getting a drum off?

The other side came off without a problem but now on that side i can not get one of the adjusting rods out, it is frozen in place. I can not get the adjusting screw to turn either but i assume that is because the rod is rusted solid. What can i do there?

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John Vb

04-28-2003 12:15:23




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 Re: JD 730 Brake Drum in reply to charles, 04-27-2003 13:38:02  
I just overhauled the brakes on my 620. The drum is on a splined shaft. If you cannot move the adjustment screw, it is either frozen or the two adjusting rods are frozen. If the drum turns freely, then the pads should not interfere with taking the drum off. I got a big block of wood and dropped the drum assembly on it, bolt first, from a couple of feet up. Of course the nut must be removed first. This gives a good impact and won't harm the threads on the bolt.

The adjusting pegs were loosened with heat and penetrating oil.

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donwisc

04-27-2003 18:56:34




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 Re: JD 730 Brake Drum in reply to charles, 04-27-2003 13:38:02  
Looks like you will definitly need heat to get the adjuster bolt out so while you are at it you can use heat on the drum hub and they should both be out in a few minutes



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Moye

04-27-2003 18:18:33




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 Re: JD 730 Brake Drum in reply to charles, 04-27-2003 13:38:02  
Charles, just had the same problem with a 70. As Woody said, PB Blaster, heat, and patience. Be careful beating on the end of the shaft or you will mess up the threads and never get the nut back on (voice of experience). The drum is a lost easier and cheaper to replace than the shaft. We used an oxy-act torch and a big pully puller. Good luck. Moye



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Woody (NE)

04-27-2003 17:34:18




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 Re: JD 730 Brake Drum in reply to charles, 04-27-2003 13:38:02  
Charles - My 620 had a frozed adjusting rod and screw on one brake. It took me over two weeks of spraying with PB Blaster, heating with a little propane torch and gentle tapping. It might have come quicker if I could have heated it more. Sorry I don't have a suggestion for removing the drum. I'm guessing the drum may have some wear so there is a ridge around the edge. Have you adjusted the brake as loose as possable? Good-luck and be patient. Woody

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