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Wolffin13 
Bronze Level
Joined: 28 Jun 2015
Location: Michigan
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 Topic: AllisChalmers 829 (haybine) mower conditioner
Posted: 28 Jun 2015 at 12:44pm |
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I am trying to replace the belt for the sickle bar on the mower can anyone tell me what the length of the belt is supposed to be? It is the round belt that goes from Vertical to Horizontal and I cannot find one locally. Im pretty sure I have the only existing AC mower in my area. Any help would be great. Thank you. Frustrated in Central Michigan
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DougS
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Joined: 03 Nov 2011
Location: Iowa
Points: 2490
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Posted: 28 Jun 2015 at 12:49pm |
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Wrap a piece of string around where the belt would go. Tie the ends together. Then cut the string and measure the total length. If the string is nested deep in the pulleys, you will have to add extra inches to allow for the belt riding at the outside edge of the pulleys. This will give you the belt length in inches.
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Wolffin13
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Location: Michigan
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Posted: 28 Jun 2015 at 1:18pm |
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Thanks tried that, have an adjustable slide idler pulley set to midway to allow for adjustment. Local autoparts measured remnants of old belt as 74" and special ordered a Gates BB71 double v hex belt at $62.50 said it should replace the round one fine. Tried to put it on and came up short. Adjuster is slacked all the way off and there's no way it will fit. So I'm trying to figure out what the number, length something of the original belt. Called around to some dealerships and I get "you're working on a what?" so here i am seeking knowledge
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DougS
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Posted: 28 Jun 2015 at 1:20pm |
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You measured the old belt as approximately 74 inches, yet they gave you a 71 inch belt? No wonder it didn't work.
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Wolffin13
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Posted: 28 Jun 2015 at 1:26pm |
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yeah that's my thinking to, I pulled specs up on the belt and it says 74" at pitch.
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Bob (IN)
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Location: SE IN
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Posted: 28 Jun 2015 at 8:47pm |
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the numbers on a belt don't measure the length you have to add three inches to the number
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great-grandpa's wc with picker, 20/35, speed patrol, uc, m crawler, 620, 653 dozer d21 d17 d19
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Wolffin13
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Location: Michigan
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Posted: 28 Jul 2015 at 7:51pm |
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Well Im on my third hex belt Gates BB73. Belts not strong enough it heats up, stretches and eventually breaks. Does anyone else have one of these machines and where do you get the heavy duty round belts????
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Calvin Schmidt
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Location: Ontario Can.
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Posted: 28 Jul 2015 at 9:05pm |
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If somehow you could find a lawnmower drive belt for a big zero turn mower that was the correct length, that may solve your problem. Those belts are much tougher than a standard industrial belt. (from a close friend who has been selling industrial drives for more than 40 years)
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Nothing is impossible if it is properly financed
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Hurst
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Joined: 11 Sep 2009
Location: Midway, Ky
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Posted: 29 Jul 2015 at 9:25pm |
You can try Kevlar belts. You can look at Vbeltsupply.com if you know your size. I have had good luck with some of their belts, but experienced the same thing as you with their standard belts on my zero turn mower, so I will probably be using Kevlar belts next to see if they slip less and put up with heat better.
Hurst
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1979 Allis Chalmers 7000
5800 Hours
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orangereborn
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Location: NW WI
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Posted: 29 Jul 2015 at 11:58pm |
 Wolffin13 wrote:
I am trying to replace the belt for the sickle bar on the mower can anyone tell me what the length of the belt is supposed to be? It is the round belt that goes from Vertical to Horizontal and I cannot find one locally. Im pretty sure I have the only existing AC mower in my area. Any help would be great. Thank you. Frustrated in Central Michigan
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If it is for the cutter bar on the 829, AC 559167 (70559167) calling it a "HB having a length of 72.94" and should equate to a B70? Dale
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JimIA
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Joined: 12 Sep 2009
Location: Castalia Iowa
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Posted: 30 Jul 2015 at 9:04am |
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You have to use the round belt. The part number orangereborn listed is the correct one and is available yet. Do you have an AGCO dealer near you? If not PM me.
Jim
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An open eye is much more observant than an open mouth
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Dusty MI
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Joined: 13 Sep 2009
Location: Charlotte, Mi
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Posted: 30 Jul 2015 at 12:01pm |
Give Williams a call. They are real Good
williamsfarmmachinery.com/ Williams Farm Machinery is a locally owned and operated business serving the Mid-Michigan area, a tradition we've maintained since 1949. We are proud to ... | 1115 Lansing Rd, Charlotte, MI 48813
(517) 543-4770 |
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917 H, '48 G, '65 D-10 series III "Allis Express"
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DennisA (IL)
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Posted: 01 Aug 2015 at 11:55am |
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I have parts books for the 904 & 390. They do not show a round belt. I have a parts book coming for the 829. As soon as I get it I will look up the part number for you.
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Thanks & God Bless
Dennis
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JimIA
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Joined: 12 Sep 2009
Location: Castalia Iowa
Points: 1979
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Posted: 01 Aug 2015 at 2:16pm |
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Dennis,
The reason they do not show a round belt on a 904 and 390 is because those two have a wobble box for the sickle where a 829 does not. The 829s feature an eccentric drive similar to a windrower. The different drive uses a round belt. I double checked in my books and the 70559167 is the correct number. AGCO currently has it on hand under the heritage number 70559167V which when I checked was at the Batavia warehouse. I ordered one for my 829 last year also.
Jim
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An open eye is much more observant than an open mouth
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