PT-425 PROS & cons??
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Phils
Platinum Member
Re: PT-425 PROS & cons??
Reversing the wheels affects the stability positively. I cannot believe that such a small added stress would affect wheel motors or seals. Not having done this myself, I don't expect it would make a significant difference in turning radius. MR can verify.
It affects whether or not the PT will fit into the back of a standard pickup bed negatively.
It's easy to try, easy to put back to the original configuration.
NOT easy enough that I want to reverse them and undo the reverse those 3 or 4 times per year that I haul the PT somewhere to do work for someone else.
Phil
Reversing the wheels affects the stability positively. I cannot believe that such a small added stress would affect wheel motors or seals. Not having done this myself, I don't expect it would make a significant difference in turning radius. MR can verify.
It affects whether or not the PT will fit into the back of a standard pickup bed negatively.
It's easy to try, easy to put back to the original configuration.
NOT easy enough that I want to reverse them and undo the reverse those 3 or 4 times per year that I haul the PT somewhere to do work for someone else.
Phil
MossRoad
Super Moderator
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- Power Trac PT425 2001 Model Year
Re: PT-425 PROS & cons??
If it increases your width 4" it will probably increas your turning diameter that much.
If it increases your width 4" it will probably increas your turning diameter that much.
Bob999
Platinum Member
Re: PT-425 PROS & cons??
Wouldn't it increase the turning diameter by at least twice the increase in width?MossRoad said:If it increases your width 4" it will probably increas your turning diameter that much.
KentT
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- 1993 Power Trac 1430 w/Kubota diesel engine
Re: PT-425 PROS & cons??
Half the increase in stance goes to the INSIDE of the turning radius, not the outside.
The tractor still articulates just as much as before, and when articulated, the inside wheels are now 2" closer to the center of the circle... the outside wheels are 2" farther out on each side of the circle, for a total of 4"...
Bob999 said:
Half the increase in stance goes to the INSIDE of the turning radius, not the outside.
The tractor still articulates just as much as before, and when articulated, the inside wheels are now 2" closer to the center of the circle... the outside wheels are 2" farther out on each side of the circle, for a total of 4"...
Bob999
Platinum Member
Re: PT-425 PROS & cons??
I guess it depends on what controls the rate of turn and it would be interesting to have actual measurements. My theory was that the inside diamenter would not get smaller when the wheels are reversed. In order for your theory to be correct the inside turning diameter would have to be 4" smaller after the wheels are reversed.KentT said:
KentT
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Re: PT-425 PROS & cons??
The rate of turn is caused by the maximum articulation of the tractor, which remains unchanged.
Bob999 said:
The rate of turn is caused by the maximum articulation of the tractor, which remains unchanged.
kmaz
Bronze Member
Re: PT-425 PROS & cons??
Hey guys I too was wondering what it would do to the turning radius ...more specifically if the articulation would be more, less or the same when articulating the mini hoe to dump
Kris
Hey guys I too was wondering what it would do to the turning radius ...more specifically if the articulation would be more, less or the same when articulating the mini hoe to dump
Kris
J_J
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Re: PT-425 PROS & cons??
OK, Some of you math experts jump on in this discussion, and figure the standard turning rate with the current angle, and then push out the width another 4 in and publish your findings . Is it the same, or will the turning radius be longer, or shorter? I am guessing longer.
kmaz said:
OK, Some of you math experts jump on in this discussion, and figure the standard turning rate with the current angle, and then push out the width another 4 in and publish your findings . Is it the same, or will the turning radius be longer, or shorter? I am guessing longer.
KentT
Elite Member
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- 1993 Power Trac 1430 w/Kubota diesel engine
Re: PT-425 PROS & cons??
Can't do it with math, but I'll say from experience that the outside of the tightest circle that you can turn is roughly 4" larger -- which really isn't that noticeable....
With the wheels reversed, when you articulate the tractor, the inside wheels actually come a bit closer together than they normally would, turning a tighter circle. (The determinant of how tight a circle is the degree of articulation, which remains the same.) The body of the tractor itself will track in roughly the same circle it would have before reversing the wheels. The inside wheels travel a circle that is smaller -- the outside wheels travel a circle that is larger. I stand by my assertion that it increases the radius of the circle by 2" and the diameter of the circle by only 4" ...
The effect of widening the track (i.e. stance) is not the same as lengthening the wheelbase of the machine....
Can't do it with math, but I'll say from experience that the outside of the tightest circle that you can turn is roughly 4" larger -- which really isn't that noticeable....
With the wheels reversed, when you articulate the tractor, the inside wheels actually come a bit closer together than they normally would, turning a tighter circle. (The determinant of how tight a circle is the degree of articulation, which remains the same.) The body of the tractor itself will track in roughly the same circle it would have before reversing the wheels. The inside wheels travel a circle that is smaller -- the outside wheels travel a circle that is larger. I stand by my assertion that it increases the radius of the circle by 2" and the diameter of the circle by only 4" ...
The effect of widening the track (i.e. stance) is not the same as lengthening the wheelbase of the machine....