7 McCormick Deering Sickle Mower

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CDD
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7 McCormick Deering Sickle Mower

Postby CDD » Fri May 26, 2017 11:31 am

I just got this, any reason I can't pull it with my Cub?

Anywhere to find a manual?

Built in late 30s?
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Shane Nelson
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Re: 7 McCormick Deering Sickle Mower

Postby Shane Nelson » Fri May 26, 2017 11:41 am

My brother and I used to pull dads around with the four wheeler when we were kids. He was at work of course :)
I don't see why you can't pull it with your Cub, you'll be spending more time looking backwards than forward though.
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Re: 7 McCormick Deering Sickle Mower

Postby Scrivet » Fri May 26, 2017 7:35 pm

Since it's designed to work at horse speed a Cub shouldn't run away with it in first or second gear. Bar length looks like it wouldn't be a problem. Only thing I can think of is getting the hitch angle correct or more importantly getting the "attack angle" of the bar and rock guards correct for the hitch height. Well that and getting someone to ride it with its steel wheels and "spring" seat and watch you riding the Cub. :D :lol:

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Re: 7 McCormick Deering Sickle Mower

Postby WaMoo » Sat May 27, 2017 7:22 pm

Lots and lots of horse mowers had their tongues shortened for tractors during the "transition" time. Lots and lots of horse drawn mowers were ruined by being pulled too fact by tractors. As long as you keep it at "horse speed" of 2-3 mph, you should be fine.

The McC-D #7 was (and still is) a very popular horse mower. In the US, the next model to come after was the #9 (which I think is balanced better), but the #7 was so popular that production occurred concurrently with the #9 for a time.

Not sure about the #7, but on my #9, the date built is stamped into the underside of the axle tube.

If you're gonna dig into it, I recommend "The Horse Drawn Mower Book" by Lynn Miller at Small Farmers Journal. They also sell manual reprints.

Parts available from Norman Macknair at macknair.com
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WaMoo
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Re: 7 McCormick Deering Sickle Mower

Postby WaMoo » Sat May 27, 2017 7:25 pm

Scrivet wrote:Only thing I can think of is getting the hitch angle correct or more importantly getting the "attack angle" of the bar and rock guards correct for the hitch height.


Good point. I think they were designed to run so that the tongue was 32" or so off the ground at the neck yoke to ensure the oil bath in the gear box functioned properly.
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CDD
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Re: 7 McCormick Deering Sickle Mower

Postby CDD » Tue May 30, 2017 8:23 am

Thanks for the info, I have visited Macknair's site and ordered a manual.

I don't have a tool box lid on it, but have read that the shape of the lever that engages the gearbox would distinguish between and high and regular gear. The HG was made in 1937 and has a lever with a squarish foot pad on the top of it. The RG is round at the top of the lever. Is there any truth to that or how else can you tell the difference. Mine has the foot pad

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Re: 7 McCormick Deering Sickle Mower

Postby WaMoo » Tue May 30, 2017 5:29 pm

CDD wrote:I don't have a tool box lid on it, but have read that the shape of the lever that engages the gearbox would distinguish between and high and regular gear. The HG was made in 1937 and has a lever with a squarish foot pad on the top of it. The RG is round at the top of the lever. Is there any truth to that or how else can you tell the difference. Mine has the foot pad


Sorry, can't help you there. Norman Macknair can probably tell you. He works on them all the time.
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Re: 7 McCormick Deering Sickle Mower

Postby CDD » Wed Jul 12, 2017 9:12 am

I got it all hooked up to the cub and it seems to just glide over the top of the grass without cutting it. Running in 1st gear about 1/3 throttle.

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Re: 7 McCormick Deering Sickle Mower

Postby Shane Nelson » Wed Jul 12, 2017 9:45 am

Can you change the angle of the sickle bar and see if that helps? Are the blades sharp?
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Re: 7 McCormick Deering Sickle Mower

Postby CDD » Wed Jul 12, 2017 9:47 am

I did adjust up and down angles but no different.

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Re: 7 McCormick Deering Sickle Mower

Postby Bill Hudson » Wed Jul 12, 2017 11:56 am

Knife sections sharp, ledger plates in excellent condition, hold down clips keeping the knife sections and ledger plates together, knife register correct. Check each out and correct as needed.

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Re: 7 McCormick Deering Sickle Mower

Postby Scrivet » Wed Jul 12, 2017 8:59 pm

How fast is the sickle knife going back and forth? I know it's hard to describe speed. Can you make out the triangular shape as they are moving or a blur? Are you starting in tall grass or something short to let the knife get up to speed before going into the thick stuff? Do the wheels appear to be dragging and not rolling as fast as you are moving?

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Re: 7 McCormick Deering Sickle Mower

Postby CDD » Thu Jul 13, 2017 6:48 am

I can make out the triangle shape as it moves. I start in grass lower than the blades. The wheels are moving at the same speed I am.

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Re: 7 McCormick Deering Sickle Mower

Postby Scrivet » Thu Jul 13, 2017 7:53 pm

What gear and throttle position are you using on the Cub? Have you tried faster or slower? My thought is, if you can make out the sections going back and forth you aren't moving forward fast enough. That and/or the things Bill mentioned are waaaaaay off. Usually it'll cut, but not pretty, if things are close.

CDD
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Re: 7 McCormick Deering Sickle Mower

Postby CDD » Fri Jul 14, 2017 7:56 am

i am in 1st gear about 1/3 throttle


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