Kenworth 850 Off Highway

[PaulNZ]

Yes, I spent many years working for Hitachi Machinery as a Diesel Mechanic, a lot of the crews had Hitachi and John Deere machines and I spent many days and nights working on their Madill swing yarders among others.

[Supermario]

in the past we have sold used 535 CAT skidders to Australia. We had to strip it right down to pieces and clean it and reassemble. If they found more than two hands of dirt at shipping, it was a major fine on us. Makes sense though, prevent introducing insects etc to a foreign continent .

[Rvjimd]

Reg,

I just stumbled onto the slide show video, wow!

I am trying to get started on the truck chassis under my NyLint dragline. I know with all your skill and experience this will be hard to answer but what did you use for plans or design ideas as you built the logging truck?

Could you say something about the drive train? I saw one picture that looked like an off the shelf gear going into the diff but is it a solid axel or a live diff?

What sort of mill are you using for this sort of stuff? I purchased a 10" lathe a few weeks back and of course now I realize I ALSO need a mill!

Thanks for the inspiration, now if I can keep away that overwhelming feeling I get when I think about working on my stuff.

Jim

[RCP57]

Originally Posted by Rvjimd

Reg,

I just stumbled onto the slide show video, wow!

I am trying to get started on the truck chassis under my NyLint dragline. I know with all your skill and experience this will be hard to answer but what did you use for plans or design ideas as you built the logging truck?

Could you say something about the drive train? I saw one picture that looked like an off the shelf gear going into the diff but is it a solid axel or a live diff?

What sort of mill are you using for this sort of stuff? I purchased a 10" lathe a few weeks back and of course now I realize I ALSO need a mill!

Thanks for the inspiration, now if I can keep away that overwhelming feeling I get when I think about working on my stuff.

Jim

Thanks Jim. I actually get some enjoyment out of watching that video myself. It reminds me of how much work it really was but also the processes involved to make each part. I didn't go by any plans to build it. I took a ton of pictures of the real trucks along with some measurements of critical parts. From there I just tried my best to make the model look like the real thing where I could. The rear ends were built using HPI Savage diff gears. I used the older style that don't have the drive cup attached and then made my own axle shafts to fit the side gears. Both diffs are open. The drive motor is from an 18v drill. I have a BF30 mill with a SINO DRO. Having a DRO is awesome for someone like me that doesn't know anything about machining. It's kinda like having the answers for a test you haven't studied for! Don't let yourself get overwhelmed! You will do fine, all you need is confidence because you already have talent! I am just about to start scratch building a pair of Rockwell 4640 diffs for a Hayes truck. I may need to read my own words of encouragement there to keep from giving up on them!lol The biggest problem for me will be trying to make 2 that are the same....

Reg

[Rvjimd]

Reg,

Not only do you have some exceptional talent you sir are also a diplomat! Thanks for the very encouraging reply! I'm heading out the the shop to see if I can put some of your encouragement to good use!

Jim

[RCP57]

Tried to do some logging yesterday. It wasn't much of a success. Truck driver parked it completely in the way and the skidder ran out of fuel... You just can't hire good help these days...

https://www.youtube.com/watch?v=_RTj...tJ-DusnO8Onw7A
https://www.youtube.com/watch?v=H2Y6...tJ-DusnO8Onw7A

[RCP57]

I dusted off old 115 today and hauled some logs. My wife and I were out in the woods yesterday and saw a couple of off highway trucks hauling wood so I guess that's what got me motivated. The load on the truck is roughly 80lbs plus the 46lbs of truck and trailer. It hauled it like a champ and I think, looked good doing it.














The tires get just the right amount of squish!



Videos are coming.