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Another Project Off My List

allis sickle bar

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#1 New.Canadian.DB.Owner ONLINE  

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Posted June 01, 2014 - 07:57 PM

When I bought my Allis HB112 several years ago, it was missing the pulley bracket that lifts the sickle bar.  It bolts onto the right side of the frame between the engine & the foot rest.

 

Gt 4.jpg

 

It has bugged me ever since.  Today, I'd had enough of it & set to work building one. I had built the pulley portion one warmish day this winter.  Painted it so it wouldn't rust before I got to building the bracket.  The pin is a bolt I cut the threads off.

 

gt 1.jpg Gt 2.jpg gt 3.jpg

 

I started by making a template to get the locations of the holes & the bend.  Then transfered them to a chunk of 1/4" x 1.25" cold rolled flat stock that I cut to 8.5".  Clamped the bar to my anvil & hit it a couple of times with a big hammer to make the bend.  Did a quick test fit to ensure the bend was correct.

 

gt 5.jpg

 

Then I tacked the pulley holder to the bracket.  Looked good.  Output side of the cable in line with the cable going to the sickle bar.  All is well, so welded it solid & cleaned it up.  Installed it for a functional test.

 

gt 6.jpg

 

That's when I noticed the cable dragging on the input side of the pulley holder.

 

gt 7.jpg gt 8.jpg

 

Had to cut the pulley holder off of the bracket & start over.  This time, I aligned the pulley with both the input & output sides of the cable.  Any one who welds knows the pain.  

 

gt 9.jpg gt 9a.jpg gt 9b.jpg gt12.jpg gt13.jpg gt14.jpg

 

Now it goes up and down without rubbing the cable on the pulley holder.

 

gt10.jpg gt11.jpg

 

A little paint, and it is ready to use.

 

gt15.jpg

 

While I was testing the up & down function, I noticed it tended to fall on its own, which is fine when actually in use, but that makes it hard to inspect the cable while in the up position, so I built an stinger tale out of some 1/2" black iron pipe and a bar bell weight.

 

gt16.jpg


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#2 IamSherwood OFFLINE  

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Posted June 01, 2014 - 08:21 PM

Nice work Mark.

I understand the frustration, of rework. I've been there many times.

Sometimes, it's just impossible to foresee everything.

Did you take it out, and kill some greenery?

Please explain about the stinger. How does that help slow down

the descent of the Sickle?


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#3 New.Canadian.DB.Owner ONLINE  

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Posted June 01, 2014 - 08:32 PM

Can't cut grass yet.  I still need to order new knives/sections/teeth (or whatever they are called).  I made a new cutter bar and some of them aren't worth transferring to the new one.

 

Stinger:  The tractor has three lift points (front, mid & rear) all powered from the same source.  As the front & mid go up, the rear goes down & vis versa.  Installing a weight on the rear lift counter balances some of the weight on the front / mid lifts.  It is like a sea-saw.



#4 IamSherwood OFFLINE  

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Posted June 01, 2014 - 08:44 PM

Ok, now I understand the stinger. Thanks.

 

Speaking of knives/sections/teeth (or whatever they are called), that simplicity

sickle mower, is missing one. Any ideas where to get one?


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#5 superaben OFFLINE  

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Posted June 01, 2014 - 08:53 PM

Good job, Mark!  I ought to hire you to do some engineering projects for me. 

 

Ben W.


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#6 New.Canadian.DB.Owner ONLINE  

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Posted June 01, 2014 - 09:01 PM

Ok, now I understand the stinger. Thanks.

 

Speaking of knives/sections/teeth (or whatever they are called), that simplicity

sickle mower, is missing one. Any ideas where to get one?

Trowel pointed me to a website, but I have no idea how to read it.  Are yours 2" or 3" wide.  The 3" ones are available through TSC & others.  The 2" may be available through Jari whoever they are.  I need to do some more research.  If I find a source, I will get you two.  Gotta have a spare.



#7 IamSherwood OFFLINE  

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Posted June 01, 2014 - 09:09 PM

2" I think.

Jari made a bunch of walk behind sickles.

You see the odd one on Kijiji or ebay.

I'll measure them some time.







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