Bob Rooks
Elite Member
Your threaded puller bolt holes use the same bolts as the holding bolts.
Sheave/ pulley adjustment
- Thread starter No1umfan
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Michael In Tennessee
Gold Member
I'd start by just getting 1 bolt of any quality and testing fit. Odds "pretty high" is useless when the ability to verify is easy.
The unthreaded holes are clearance holes and have no bearing on visually checking to see if the existing bolts fit the threaded holes. However, you did say you checked, so I'll assume you are correct. I agree with others that the existing bolts "should" be the same as the jack bolts. But, who says every manufacturer is so thoughtful as to do so.
Have you bothered to verify the existing bolts are inch standard and not metric?
Finally, it appears you may not satisfy the nay-sayers until you post a pic trying to insert the existing bolts in the jack screw holes.
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K5lwq
Elite Member
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- Aug 6, 2017
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- Tractor
- Kioti LK2554, Branson 4815C, Satoh Beaver, Speedex
Looking at his pictures I definitely would say the bolt is bigger. However, the ones on the other pulley may fit as previously suggested.
WranglerX
Super Member
Looking at picture I get feeling "jack bolt holes" are not threaded, there for needs some other means of releasing taper, like may be a punch...
LD1
Epic Contributor
I was wondering the same thing but couldnt tell on my phone. But from the desktop they indeed dont look threaded. Maybe a MFG oversight....they drilled but never came back and tapped? That would explain why they look so small and the bolts dont fit.
But I assume we are looking at a ~50-60 year old mower. And things werent as standardized as they are today.
For example....smaller taperlocks like that.....Usually only have 3 bolts holding them and three threaded jack bolt holes.
No, can verify that Jack bolt holes are definitely threaded
WranglerX
Super Member
Then why can you not find bolts to fit..... Pretty sure at age of implement isn't metric so its got to be a common SAE dimension and thread pitch....No, can verify that Jack bolt holes are definitely threaded
IF you need grade 8 or better screws for jack screws, look at Allen head cap screws..... Allen heads are 160,000 PSI where a grade 8 in only 150,000PSI...
Bolt Depot - Socket cap, Alloy steel black oxide finish
www.boltdepot.com
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