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CA speed 1st and 2nd
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Ken in Texas View Drop Down
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Joined: 11 Sep 2009
Location: Henderson, TX
Points: 5919 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken in Texas Quote  Post ReplyReply Direct Link To This Post Topic: CA speed 1st and 2nd
    Posted: 23 Mar 2024 at 3:48am
maximum speed of a allis CA in second gear
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PaulB View Drop Down
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 4782 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 23 Mar 2024 at 6:37am
As per the CA operators manual with 11.2X24 tires @ rated RPM (1650):
1st-1.94
2nd-3.41
3rd-4.36
Now with 13.6X24 tires that you have @ 1650:
1st-2.08
2nd-3.67
3rd-4.68
If you're running an engine speed of 2000RPM with 13.6X24 tires:
1st-2.51
2nd-4.44
3rd-5.94
 Many years ago when I started pulling a CA, I made up a speed chart with many different tires sizes and engine RPMs to figure out what size tires to switch to for what power I was making.
 D10/12 tractors will have the same speeds. As the D14/15 tractors and H3 crawlers used the same gearset. For H3 there was an optional set of gears that were faster in 1st gear. I looked for many years and never found that optional gear set
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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dgerth View Drop Down
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Joined: 27 Nov 2012
Location: NC Wash
Points: 172 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dgerth Quote  Post ReplyReply Direct Link To This Post Posted: 24 Mar 2024 at 7:06am
Mr. Ken,
When I pull our CA, 1st is only for loading on the trailer. 2nd for everything else up to 8mph, then 3rd (?) depending on the track.
dan
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