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| Farmall & IHC Tractors Discussion Forum |
Looking for torque specs axle clamps, Farmall 400
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Redturbo
08-18-2016 21:46:55
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My Dad just brought a Farmall 400 last weekend, I hauled it back for him. The rims were put in dish out, putting them to dished in right now. Doesn't anybody know what IH torqued the 4 bolts that hold the hub to the axle? There 7/8 fine thread grade 5 bolts. I have searched the internet & found a wide range of torque specs for 7/8 bolts. I rather not break them off, going to be ordering service manual for this tractor from binder books. As its not a W series, so its weird to us.
thanks
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Redturbo
08-24-2016 19:47:50
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Re: Looking for torque specs axle clamps, Farmall 400 in reply to Redturbo, 08-18-2016 21:46:55
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Great info D Slater, I backed the bolts down to 400 ft lbs. Thanks again, Scott.
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Redturbo
08-20-2016 11:15:34
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Re: Looking for torque specs axle clamps, Farmall 400 in reply to Redturbo, 08-18-2016 21:46:55
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I searched for bolt torque specs online, get a few different numbers. For an average, 7/8 grade 5 bolts torque was 355 ft lbs, 7/8 grade 8 bolts were 500 ft lbs. I picked up 8 new grade bolts & lock washers. Put never seize on the threads on them, torqued to 450 ft lbs. I was just wondering what the cast cap that the bolts thread into would strip out or break at? Think I will just stop there. Thanks guys.
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D Slater
08-21-2016 17:11:18
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Re: Looking for torque specs axle clamps, Farmall 400 in reply to Redturbo, 08-20-2016 11:15:34
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Maybe my manual printed in October of 62 has a mistake. It says 240 to 280 ft. #. I need to check that out. No lock washer was used on the bolts. They changed bolts around serial 9 or ten thousand. Bolts used after that were longer and were smaller between threads and to about 3/4 inch below head.
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D Slater
08-23-2016 04:57:28
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Re: Looking for torque specs axle clamps, Farmall 400 in reply to D Slater, 08-21-2016 17:11:18
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After figuring out the first manual I looked at must have a misprint for clamp bolts on a 560. Looked at a 400 operators or final drive manual that doesn't give a torque but a 450 with 4 inch long bolts says 390 to 440 Ft. lb.
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The tractor vet
08-19-2016 20:30:05
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Re: Looking for torque specs axle clamps, Farmall 400 in reply to Redturbo, 08-18-2016 21:46:55
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Ya want around 475 ft.lbs on clean chased threads with a bit of lube , you can use engine assembly grease or never seize
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F-Dean
08-19-2016 07:33:23
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Re: Looking for torque specs axle clamps, Farmall 400 in reply to Redturbo, 08-18-2016 21:46:55
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Yes, switch to grade 8 bolts! Never too safe, especially when traveling in road gear.
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D Slater
08-19-2016 06:57:23
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Re: Looking for torque specs axle clamps, Farmall 400 in reply to Redturbo, 08-18-2016 21:46:55
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240 to 280 for grade 8 clamp bolts. Don't remember seeing the number for the grade 5 ones. After snugging down evenly, a 3 or 4 foot cheater pipe and a pretty good bit of pressure is how I finish them off.
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S2710
08-19-2016 19:38:28
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Re: Looking for torque specs axle clamps, Farmall 400 in reply to D Slater, 08-19-2016 06:57:23
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I agree with the cheater pipe. If you break one now it is better then when you are driving. I always say to tighten them as tight as you can and then give them a half a turn more. If you break one replace all of them because if one broke the rest are not far behind. Bob
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