Tires Speed accuracy with different tires

[txdon]

Is the diameter of the Ag tire larger than the Industrial tires? Is the speedometer correct on the grand L series tractors?
(I'm doing that thinking and driving thing again.)

 

[Henro]

I don't know the exact answer...but I bet is is close enough! /forums/images/graemlins/grin.gif

 

[daedong]

Don,
<font color="blue"> Is the speedometer correct on the grand L series tractors?
</font>
Are you worried about the radars /forums/images/graemlins/blush.gif

 

[jmc]

As I remember, the assembly/setup manual mentions an entry to be made electronically to compensate for tire size. Don't know if it discriminates between turf, ag, and industrial tires but that may be reflected in the size designation as well.

John

 

[txdon]

And the person with the correct answer is ---JMC!! /forums/images/graemlins/smile.gif

I'm not worried about the radar just trying to figure the force of the tractor when I hit a tree! /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

 

[Henro]

<font color="blue"> I'm not worried about the radar just trying to figure the force of the tractor when I hit a tree! </font>

Gee...no need to figure that one out...answer is obvious...too much! /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

 

[OrangeGuy]

Your Grand L Operator's Manual tells you how to set the speedometer based on the size of the rear tires. It's an easy adjustment.

OrangeGuy

 

[mwood]

Just out of curiosity... what is the point of a speedometer on a tractor??? Honestly. I'm curious? /forums/images/graemlins/tongue.gif

 

[hazmat]

<font color="blue">Just out of curiosity... what is the point of a speedometer on a tractor??? Honestly. I'm curious? </font>

For spraying & fertilizing - when you want to control how much material you let out per acre. You need to know your groundspeed.

 

[mwood]

Thanks! I was really worried about people thinking I was being sarcastic but I really wanted to know! I'd never thought to look for a speedometer on a tractor before.

I would think that even if you didn't have a speedometer, but knew your gearing, you could calculate speed based on RPM and gearing... but that probably only works for gear drive tractors...

Just thinking out loud!

Thanks!

 

[thcri]

The speed is only part of the equation for spraying and putting on fertilizer. Example fertilizer spreaders tell you where you should be on speed but the type of fertilizer can change that. I have found that with my spreader and tractor the best thing to do is to use low range and go as fast as the tractor can go in the low range. I usually end up with just the right amount of fertilizer that I want to spread. I know I am no where's close to what the spreader says to use as far as speed.

I did use my GPS to determine what speed I was at in each range just for my own information.

murph

 

[Wood_Butcher_Dav]

Since radar was mention, a lot of larger Ag Tractors use ground speed radar to tell them actual speed. This is mostly use for planting and applying fertilizer etc.

Dave