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#22
01-23-2016, 07:24 PM
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If you bought it new I suggest that you have a chat with the seller. If not then call Bercomac. Otherwise stick a grade 5 or grade 8 bolt in the hole and sprinkle some holy water on it and go get your snow moved. Don't want to sound like an A Hole but I'm at a loss for an answer. As long as your not feeding it rocks or frozen chunks of Ice a blower should not be spitting out shear bolts. They are meant to break when the system has been over stressed. Sorry but something is wrong and I can't diagnose it from here.
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2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL 
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#23
01-23-2016, 07:29 PM
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i bought it used. it had never been used previously. i put more wear on it today than it ever had. not hitting anything but snow. its wet but not too heavy. grade 5 seems like the right next step. here is the manual if anyone wants to see if I am missing something. Swear i did read it....
https://drive.google.com/file/d/0ByH...ew?usp=sharing it is a class 8.8 shear bolt by the markings on the top.
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#24
01-23-2016, 07:40 PM
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im with Sam get a heavier bolt
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982D kwik-way loader w/3 spool control and front and rear remotes,2182, 1812 cat 0, 1440 puller, 3185 grass killer, 2x 450s, QA42, 364, tiller
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#26
01-23-2016, 07:52 PM
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Quote:
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2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL
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#27
01-23-2016, 09:21 PM
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2 things - according to the manual it looks like it calls for shear pins with nylon lock nuts and as far as i can tell everything is std size, not metric. Looking here a grade 8.8 metric bolt is close to grade 5:
https://www.boltdepot.com/fastener-i...ade-chart.aspx Make sure the shear bolt size is correct; i've seen small ones that slop around break easily and it won't have the strength needed because it's a smaller bolt. Hope this helps.
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#28
01-23-2016, 09:28 PM
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Take a look at these sites/pages. If I am converting things correctly, you are already running something stronger than a Grade 5 bolt. So are you using metric bolts? Wonder if you could try a Grade 5 in a standard thread--6mm and 1/4 are close, 8mm and 5/16, doubt you have anything bigger than that.
I'm just wondering if you got some crappy bolts. Dangerous game when you start substituting shear bolts with anything other than OEM--do so at your own risk. https://www.boltdepot.com/fastener-i...ade-Chart.aspx http://www.mcmaster.com/#hex-head-cap-screws/=10tbaeb https://www.fastenal.com/en/76/metri...specifications
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2072 w/60" Haban 982 with 3 pt and 60" Haban 1811 with ags and 50C 124 w/hydraulic lift 782 w/mounted sprayer 2284 w/54" mowing deck
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#29
01-23-2016, 09:30 PM
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Quote:
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2072 w/60" Haban 982 with 3 pt and 60" Haban 1811 with ags and 50C 124 w/hydraulic lift 782 w/mounted sprayer 2284 w/54" mowing deck
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#30
01-23-2016, 10:06 PM
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i had 2 bags of the shear pins. one came with the blower the other was a pack i ordered earlier this year. Both bags break. The bolts are all marked with a SM and underneath of that 8.8
Is this correct? 8.8 metric is 116,000 psi and grade 5 sae is 120,000 psi? thanks again for all the help guys. I have still managed to blow a mtn of snow. we got 25", I can hopefully get the neighbors drives. I started with 20 shear bolts, I have 9 left. Sean
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