[AT] McCormick plow

[charlie hill]

Len,  I've never plowed with a WD-45 so I'll take your
word for that and it could be that I don't remember
exactly what it was like on the D-series tractors.  It's been a long
time.  You are right if the traction booster kicks in it tends to lift
the front end but then again you are in a tough pull then.
When my dad's D-10 was new the TB worked perfectly and I loved it.
It would sit there and constantly adjust you could hear it and if you 
watched
the needle it was bouncing and vibrating like crazy.  I'm not sure how
hard it would be to get one of them to work that well now.

Charlie

-----Original Message----- 
From: Len Rugen
Sent: Thursday, August 21, 2014 4:52 PM
To: Antique tractor email discussion group
Subject: Re: [AT] McCormick plow

Odd, our WD-45 would lift the front wheels running over a cow pie while
plowing.  I think the lift on the arms from the "traction boost" just
aggravated things, when you hit a tough spot, it pulled harder AND
lifted the arms, taking weight off the front.

However, a well tuned plow wouldn't cause much side draft on the
straight and level.  You had to get it level, get the first bottom
cutting the same as the other 2 both depth and width and get the rear
landslide so it took the side draft.  I built up the TB linkage with
welds, got it all tight, adjusted things and it would plow most places
in 3rd gear.  We just tried to turn too much while plowing, we had few
square fields, with the trike front, if you dropped the front wheel in
to the furrow, the only choice was smoking breaks.  I later got a wide
front WD-45 and that made a huge difference.



On 8/21/2014 3:31 PM, charlie hill wrote:
> Greg around here you can sometimes tell a tractor that has plowed a lot
> because the left wheel brake is worn out and the right is still good.
> Allis Chalmers plows are also mounted forward of the rear axle roughly
> under the back of the transmission.  If fact A-C drawbars on the WC, WD
> and D series tractors pull from that same point (the snap coupler). 
> There
> are some traction advantages and also it keeps the front end planted 
> rather
> that the tractor wanting to rear up.  You have to really get in a tight 
> pull
> to make the front end start to come up unlike the N series Fords and the
> Fergies.
>
> Charlie
>
>

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