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3 Pt Adjustment Question
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dfwallis View Drop Down
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Joined: 09 Mar 2023
Location: DFW
Points: 745 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dfwallis Quote  Post ReplyReply Direct Link To This Post Topic: 3 Pt Adjustment Question
    Posted: 19 hours 30 minutes ago at 8:35pm
I modded my CA custom 3pt hitch so that the lift arms will now go all the way to the ground.  However, I'm concerned that if I let the front of a mower drop too low (say crossing a ditch), that it will bind the PTO shaft.  Is there a general rule about how much you SHOULD allow the PTO shaft to bend?  Avoid crossing ditches or just limit the downward travel?  Best practices?

Edited by dfwallis - 19 hours 4 minutes ago at 9:01pm
1952 CA13092
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DiyDave View Drop Down
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 53762 		Post Options Post Options   Thanks (1) Thanks(1)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 19 hours 14 minutes ago at 8:51pm
Max deflection for a U joint is 35 degrees, for safety, 20 degrees.  That's what the book says...  In practice, making sure you have the length right, and the joints properly phased are the important things...
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WF owner View Drop Down
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Joined: 12 May 2013
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Points: 4968 		Post Options Post Options   Thanks (1) Thanks(1)   Quote WF owner Quote  Post ReplyReply Direct Link To This Post Posted: 9 hours 54 minutes ago at 6:11am
If you drop it slowly when it's running, it will tell you when it is approaching too sharp (chattering). You should then be able to adjust your depth so you can't drop it too low.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21668 		Post Options Post Options   Thanks (1) Thanks(1)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 8 hours 1 minutes ago at 8:04am
Adjustable chains to control the max drop on the draft arms would be a good accessory to have to prevent a disaster like that from happening.
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dfwallis View Drop Down
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Joined: 09 Mar 2023
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Points: 745 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dfwallis Quote  Post ReplyReply Direct Link To This Post Posted: 6 hours 32 minutes ago at 9:33am
Originally posted by DrAllis DrAllis wrote:

Adjustable chains to control the max drop on the draft arms would be a good accessory to have to prevent a disaster like that from happening.

There are screw/turnbuckle adjustments.  Just trying to determine where to set them.


Edited by dfwallis - 1 hour 29 minutes ago at 2:36pm
1952 CA13092
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