single stage hayban RPM?

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64/67lo-boy
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single stage hayban RPM?

Postby 64/67lo-boy » Sun Jan 08, 2017 8:52 am

Ive got an old hayban single stage snow blower that Id like to run on my 154. does anyone have any idea what the auger rpms should be?
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Re: single stage hayban RPM?

Postby Eugene » Sun Jan 08, 2017 2:21 pm

If you had the pulley from the tractor the snow blower was originally mounted to and knew the tractor's PTO RPMs- - with a bit of math you could figure it out.

Next problem, Cub's PTO is counter clock wise at engine RPMs, most tractors, clock wise PTO at 540 RPS.
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Re: single stage hayban RPM?

Postby SONNY » Sun Jan 08, 2017 7:24 pm

If it belt drives from pto,---cross the belt whichever way makes the blower run the right direction!---(I think???)! thanks; sonny
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Re: single stage hayban RPM?

Postby Eugene » Sun Jan 08, 2017 8:20 pm

Lot of information on Haban snow blowers on the internet. Hayban snow blowers didn't pop up on the internet.
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64/67lo-boy
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Re: single stage hayban RPM?

Postby 64/67lo-boy » Mon Jan 09, 2017 7:51 am

Eugene you are right its Haban not Hayban. I see that the single stage is a thrower and the dual stage is a blower. It came with a 48 cub I picked up a couple years ago. Sonny I dont know what size pully drove it. I am going to install an angle drive with a drive shaft that runs to the back of the tractor and uses a belt to drive it off the pto. Maybe run a chain off the angle drive to the thrower.
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man comes into the world cold naked wet and starving, and after that things get worse. "Gun Smoke"

Eugene
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Re: single stage hayban RPM?

Postby Eugene » Mon Jan 09, 2017 8:19 am

On the snow thrower. Mark the snow thrower drive pulley. Adjacent marks on the auger and the side panel. Rotate the drive pulley one full turn, count 1. Look to see where the marks on the auger and side panel are. Rotate the drive pulley one more full turn, count 2. Again check the marks on the auger and side panel. Complete the process for 10 full turns of the drive pulley. This will provide the ratio between drive pulley and auger revolutions.

Since the standard Cub and it's PTO operate at 1600 RPMs in the work range. A bit of math will provide an approximation of the desired auger's RPMs, since we don't know the gear reduction or diameter of the Cubs PTO pulley compared with the diameter of the snow thrower's drive pulley.

The numbered Cub's PTO operate at a bit lower RPMs.

More math. Depending on how you want to drive the snow thrower, pulley or gear sizes to obtain the desired snow blower's RPMs.
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Re: single stage hayban RPM?

Postby SONNY » Tue Jan 10, 2017 8:15 pm

My pto speeds on all my cubs and 185's is 800 to 850 tops with engine at 1600.---the belt drive to jackshaft is a good simple idea and will work.---a single stage thrower can be run fairly fast to toss the snow out the chute.---too slow and it will only clog.---I uped the rpm on a cadet that I once had and it did work really well after that! thanks; sonny
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Re: single stage hayban RPM?

Postby Eugene » Tue Jan 10, 2017 9:30 pm

67 Cub Operator's Manual lists maximum PTO speed, full load at 1800 RPMs.
11-73 Operator's Manual for the 154 lists the PTO at 1800 RPMs, full load, governed speed.
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64/67lo-boy
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Re: single stage hayban RPM?

Postby 64/67lo-boy » Wed Jan 11, 2017 7:44 am

The reason for wanting to know the required auger rpm is so I can figure out the pully sizes I need to drive the jack shaft that I will be making. I see conflicting rpm's from 800 to 1800. still not sure what would be best fo this single stage. I also have the creeper gear for this tractor that i need to install but would rather do that in the spring when its warmer outside.
Pete from Virginia Beach


man comes into the world cold naked wet and starving, and after that things get worse. "Gun Smoke"

Eugene
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Re: single stage hayban RPM?

Postby Eugene » Wed Jan 11, 2017 8:40 am

64/67lo-boy wrote:I see conflicting rpm's from 800 to 1800.
You can double check the specifications for the standard Cub and the numbered Cub Low-Boys PTO in the Operators Manuals. Available in the manuals section above.

The PTO on standard Cubs operates at engine RPMs. Numbered Cubs, the PTO operates a bit slower than engine RPMs. From the 154's Operators Manual, engine full load governed speed 2200 RPMs. PTO full load at governed speed 1800 RPMs.
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Re: single stage hayban RPM?

Postby SONNY » Wed Jan 11, 2017 8:15 pm

I Know what the books say, BUT my tractors pto's do NOT run that high on rated engine rpm's.---never did figure it out.( checked mine on both ends with 3 different hand tachs.,---and they all read the same!)---don't matter to me as long as engine runs and pto goes round and round! LOL!!!---If you can get a hand tach,--check yours on both crankshaft and pto shaft,---then you will know exactly what your tractor does actually run!

Without creeper gear, you would need a lot higher auger speed so you wont have to slip the clutch so much in deep snow! (just my .02 on speed) thanks; sonny
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Re: single stage hayban RPM?

Postby Eugene » Thu Jan 12, 2017 12:47 am

SONNY wrote:I Know what the books say, BUT my tractors pto's do NOT run that high on rated engine rpm's.---never did figure it out.( checked mine on both ends with 3 different hand tachs.,---and they all read the same!). If you can get a hand tach,--check yours on both crankshaft and pto shaft,---then you will know exactly what your tractor does actually run!
I own a mechanical tach and have checked engine RPMs at the PTO. Numbers came in very close to my previously stated numbers.

Don't own a digital photo laser tach to check the engine RPMs at the crankshaft pulley.
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Re: single stage hayban RPM?

Postby SONNY » Thu Jan 12, 2017 1:29 pm

Try this:---mark a spot on the top of crankshaft pulley and a mark on the top of the pto shaft.----then put pto in gear,---turn engine, slowly by hand and see where the marks land after 1 complete rev.---use that figure to calculate your actual tractor ratio. You can then move on to pulley sizes on the jackshaft. If your engine sounds like its screami'n,--then assume it's on the high end of the rev. chart. and size your pulleys from that. (hope this helps at least a little!! ) thanks; sonmny
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