Lost 4X4?

[IronHog]

Hi Folks,



First post, technical question.

My father purchased a 2006 DK40 last Friday.......clean tractor...no signs of abuse.....~600 hours.....paint is barley scratched on the under side.


He goes on vacation so I commender the new to us rig for some clean up on my place. Piling some pine logging slash from last year with a 3pt brush piler and the bucket. Easing around on the tractor taking my time......work is slow but rather easy as the slash is dry...

Come to a medium size bush that has grown up along the side of the logging deck and go to push it over with the bucket.......second gear, light throttle...

Felt a small pop (like when you hit the shuttle with your knee and knock the tractor out of gear) and the front end stops pulling....nothing violent and the tractor wasn't in a bind. Just no 4X4......


Ideas? Thanks for any feedback.

 

[Coyote machine]

Hi Folks,



First post, technical question.

My father purchased a 2006 DK40 last Friday.......clean tractor...no signs of abuse.....~600 hours.....paint is barley scratched on the under side.


He goes on vacation so I commender the new to us rig for some clean up on my place. Piling some pine logging slash from last year with a 3pt brush piler and the bucket. Easing around on the tractor taking my time......work is slow but rather easy as the slash is dry...

Come to a medium size bush that has grown up along the side of the logging deck and go to push it over with the bucket.......second gear, light throttle...

Felt a small pop (like when you hit the shuttle with your knee and knock the tractor out of gear) and the front end stops pulling....nothing violent and the tractor wasn't in a bind. Just no 4X4......


Ideas? Thanks for any feedback.

I'm confused: the front end stopped pulling? Did the tractor stop when you tried pushing the bush over? Where did you feel the slight pop occur?
Have you checked the 4x4 switch function? Is there a blown fuse in the fuse box which controls engagement of the switch?

 

[IronHog]

I'm confused: the front end stopped pulling? Did the tractor stop when you tried pushing the bush over? Where did you feel the slight pop occur?
Have you checked the 4x4 switch function? Is there a blown fuse in the fuse box which controls engagement of the switch?

The tractor is the older model with the mechanical 4X4 lever. The lever goes in and out......dash light goes on/off.


The tractor stopped moving foward when the slight pop occurred because it lost traction. The ground is covered in soft rotting wood and logging slash and traction is poor. I hadn't been pushing the tractor hard at all up to that point....if I did hang up I would ease off and get another push with the piler.


Tractor worked fine after that expect the front tires won't pull......outside of some gear whine in low range (that I took as normal for a CUT) this thing ran just like new and I'd guess the tractor had spent very little time in four wheel drive in the past.

 

[IronHog]

Went back today to pick up the tractor and drop it at the shop.


Lifted the front tires off the ground and spun a front tire...other one doesn't move.


Guess something let go in the front end........pretty disappointed as we chose this tractor due to the beefy looking build......

 

[Coyote machine]

Went back today to pick up the tractor and drop it at the shop.


Lifted the front tires off the ground and spun a front tire...other one doesn't move.


Guess something let go in the front end........pretty disappointed as we chose this tractor due to the beefy looking build......

You bought a USED tractor, without a warranty, yes?
Things break- it has 600 hours on it, yes?
Did you have someone go over it with a fine toothed comb before purchase?
Sorry it's broken, but let's be realistic, this is why people buy new- if something breaks it's under warranty; otherwise one takes a gamble on condition, etc.
See what's wrong and go from there.

 

[IronHog]

You bought a USED tractor, without a warranty, yes?
Things break- it has 600 hours on it, yes?
Did you have someone go over it with a fine toothed comb before purchase?
Sorry it's broken, but let's be realistic, this is why people buy new- if something breaks it's under warranty; otherwise one takes a gamble on condition, etc.
See what's wrong and go from there.

It is at the shop now to be looked at...........and I understand the concept of buying used.


Still pretty disappointing though.......all the excessively hard use I've put on tractors though the years and this is the first driveline component to ever fail....while doing next to nothing.

 

[MotorSeven]

Went back today to pick up the tractor and drop it at the shop.


Lifted the front tires off the ground and spun a front tire...other one doesn't move.


Guess something let go in the front end........pretty disappointed as we chose this tractor due to the beefy looking build......

They are not supposed to spin together. Since you were grubbing I wonder if a stick jammed the linkage causing the problem. Did you happen to crawl under and take a look at the linkage?

 

[Dmace]

Lifted the front tires off the ground and spun a front tire...other one doesn't move.
Guess something let go in the front end........pretty disappointed as we chose this tractor due to the beefy looking build......

These tractors have an open differential, the tires will not turn each other unless in 4wd. I would start by following the linkage from the 4wd lever and making sure you didn't just bend it.

 

[IronHog]

These tractors have an open differential, the tires will not turn each other unless in 4wd. I would start by following the linkage from the 4wd lever and making sure you didn't just bend it.

Linkage looked fine.


Pretty sure the other tire should turn in the opposite direction on an open diff unless these tractors have some type of electric front diff disconnect.

 

[bluechip]

With both front wheels off the ground, rotating one tire will either cause the other tire to rotate in the opposite direction OR the drive shaft will spin, whichever has the least resistance. You have to engage the lever to hold the driveshaft still to test front diff.