Tracked road grader

   / Tracked road grader #1  

bcp

Super Star Member
Joined
Jul 8, 2009
Messages
14,841
Location
SW WA
Tractor
Kubota BX2360
tracked-grader.jpg


Bruce
 
   / Tracked road grader #3  
Interesting machine.

Doesn't look like it is grading much.
 
   / Tracked road grader #5  
Two minutes searching tells me Russell Motor Patrol was the prototype for what we see today and was acquired by Caterpillar. The grader front end was added onto an AC tractor.
 
   / Tracked road grader #6  
Wonder why he is ripping an otherwise pretty smooth road. Interesting machine.
 
   / Tracked road grader #7  
That had to be a wicked machine to turn. I rented a Galion to do my driveway. Even that thing took about a quarter mile to turn. :eek:

And look at all the adjusting wheels! Ya gotta appreciate the hydraulics of todays machines. :thumbsup:
 
   / Tracked road grader #8  
Wonder why he is ripping an otherwise pretty smooth road. Interesting machine.

It's probably NOT smooth. Looks like he's already been down that side once. I have to do the same thing with my driveway to get dirt/clay back where I want it. I usually have to wait for a light rain to soften it up. Or doze the wash-outs within a couple of days after a hard rain.
 
   / Tracked road grader #9  
Controls:
[video]https://www.google.ca/search?q=14+grader+controls&client=safari&hl=en-ca&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiMn5uUmL7sAhWxnuAKHRwcBc0Q_AUoAXoECAwQA w&biw=1269&bih=830#imgrc=0ZanJAyAWcYi9M[/video]
 
   / Tracked road grader #10  
Where to start. :)

He's using the scarifier, which is buried to the beam, to rip up the roadbed so the blade can then be used to distribute the material. Most old machines carried a scarifier because the machine didn't have the ability to tear up a solid roadbed.

The operator has a steering wheel to make small direction changes or corrections while grading. If the task is to turn around, the steering wheel will be used along with track clutches that disengage one track so the dozer is also wanting to turn the same direction. Even then it will require a lot of space and many forward/backword moves to turn around.

The two large control wheels by the operator raise and lower each end of the cutting blade. The small control wheel to his right side is used to raise/lower the scarifier.

There is a lever in front of the operator that is used to release a latch pin which holds the cutting blade in an angled position. Once this pin is released ground pressure is used to change the angle of the blade. Then reset the latch pin to hold it there.

The blade table can be repositioned under the machine to do ditch work by mechanically removing fasteners and then using the machine to push the table to the position required.

The blade can also be unfastened from the table and shifted to either side for similar tasks as ditching or reaching far outside the track of the machine.

Pretty crude but considered a Cadillac in it's day!!! I started running a grader 32 years ago. A CAT 12 machine with mechanical blade controls. Compared to today's machine it was about as effective as dragging a chicken backwards down the road....

Here's a predecessor to the pictured grader above. This was pulled my a dozer. I bought it out of an iron scrap yard. It's a CAT Model 34. Same controls as mentioned about just different power source. I put my Son on it one day and pulled him around for a couple hours. He decided the men that ran these all day were very tough. :)

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   / Tracked road grader #11  
Here's a tractor conversion model as mentioned above. This one is very slick!!!




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   / Tracked road grader #12  
Here's the result of Danny's work on the ole pull type grader. It's a path thru our timber to the campground. He did pretty good for only having a couple hours experience. :cool:




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   / Tracked road grader #16  
Only way to get rid of corrugation. They do it to our road every so often.

Speaking of corrugation; I always looked at them as an irritation until I nearly lost control of my car. I was driving on a paved road, and the pavement ended at an exit, on a curve, which I took a bit too fast. At the end of the exit, and beginning of the curve, was a nice washboard section. When my front wheels hit the washboard, they began to bounce, and I bounced into the left side of the road before they ended and I recovered control. Talk about a surprise; took me a minute to recover my cool.

I also saw a combine that was being roaded too fast, and as he exited a bridge, hit a big patch of washboard. The thing ended upside down in the ditch on the opposite side of the road.
 
   / Tracked road grader #19  
It was already a dirt path full of ruts and not quite that wide. What debris he gathered is buried in the crown.
 
   / Tracked road grader #20  
^^^
Gotta do whatcha gotta do..
That works great here in the south,
Bury it and finish with a nice clean tater bed road as we call it :laughing:
 

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