Re: Steamer
 

The stacks look great! Did you score this truck on E-Bay, or was it something you had saved in a closet? These things are getting harder to find all the time.

Re: Steamer
 

Nathan, TNT Lou was cleaning out his closet and I just happened to be there at the right time. I always wanted to build a mining truck and this was a great opportunity to do a conversion.
Rob

Re: Steamer
 

Looks like it will be ready to move dirt this weekend

greg

Re: Steamer
 

Digging dirt. After a while being away from the forum, I thought that I better start doing something. Greg Lou and I have been slowly rearranging Greg's backyard lawn. So far we've been ruining everything through a temporary screening plant and it hard to believe there's been this much rock.
http://i1235.photobucket.com/albums/...gsplace002.jpg
Here's a picture of the screen and Lou's been digging it out and loading the FWD with his Cat 966.
http://i1235.photobucket.com/albums/...rt/ICAT006.jpg
Vid
http://i1235.photobucket.com/albums/...th_ICAT004.jpg
On the loading side Greg's been putting some hours on the new Cat excavator and it's been preforming great. this winter he's going to finish building the cab and all the finishing touches. Vid
http://i1235.photobucket.com/albums/...th_ICAT003.jpg
FWD after moving dirt from the screening plant.
http://i1235.photobucket.com/albums/...gsplace009.jpg
Greg's new Cat without the cab, working real good.
http://i1235.photobucket.com/albums/...gsplace006.jpg
General shot of the area.
http://i1235.photobucket.com/albums/...gsplace005.jpg
Thanks for looking.
Rob

Re: Steamer
 

Aw man! I wanna play too! Looks like you guys have been busy and having a good time to boot!

Are you guys still planning on attending the show in Port a couple weeks from now?

Reg

Re: Steamer
 

Thing have been getting real busy here on the Island, so it was time to pick up some new equipment. Found this Aeromax that fills the bill, so we picked up.
http://i1235.photobucket.com/albums/...Aeromax004.jpg

Just need some conversions, so it's going to get a 6 tooth pinion and a wet pack for a dump trailer and some construction tires and it'll be go to go.
http://i1235.photobucket.com/albums/...Aeromax006.jpg
Thanks for looking.
Rob

Re: Steamer
 

Nice looking truck.

Re: Steamer
 

Great looking coe dump! Nice looking aeromax too!

Re: Steamer
 

Aeromax update.
Well I'm glad to say that the Aeromax finally came to an end. Got all the conversions done and now can put it to work. The trailer started out as a transfer and is now just a modified dump. I left the movable box and installed a king pin so I could pull it with the Aeromax.
Some Pictures
http://i1235.photobucket.com/albums/...trailer002.jpg
http://i1235.photobucket.com/albums/...trailer013.jpg
http://i1235.photobucket.com/albums/...trailer017.jpg
http://i1235.photobucket.com/albums/...trailer015.jpg
I'm pretty happy with the way it turned out and I hope I can put it to work soon.
Thanks for looking
Rob

Re: Steamer
 

That's a sharp looking trailer! Great looking combo.

Re: Steamer
 

Nice work Rob, great looking combo! :cool:

What's new lately with the Mammoth rebuild?

Re: Steamer
 

Nice looking rig!

Re: Steamer
 

It's sitting on my kitchen table as of five minutes ago. Just looking at it trying to remember where I left off. Been putting off building the two stage dump cylinders but now have no excuses left, so I guess it's time. There different as the oil is fed through the rod and not the cylinder so that going to take some thought
http://i1235.photobucket.com/albums/...20789C/744.jpg
It's been painted so I'll get some shots up. Someone else wanted to know about the wheels and rims, so I'll do that too.
Thanks for the comments on the Aeromax.
Rob

Re: Steamer
 

Rob. The aeroMax looks very good. Well a little to good, I can't wait to get it dirty and smash the box up. Lol.
P.S. Those mud flaps are not going to look that clean for to long

Greg

Re: Steamer
 

the is a sweet looking areomax Rob.. and the transfer dump looks awesome. great combo

Re: Steamer
 

Thanks for the comments on the Aeromax, I'm just glad it's finished. Here's some shot of the mammoth with a splash of paint.
http://i1235.photobucket.com/albums/.../Models007.jpg
http://i1235.photobucket.com/albums/.../Models006.jpg
http://i1235.photobucket.com/albums/.../Models005.jpg
Just finishing the hand rails and then on to the dump cylinders.
Thanks for looking Rob

Re: Steamer
 

Lookin good Rob!

Re: Steamer
 

Looks like the Mammoth will be ready to move some mud this weekend ? OR WATER

A weather man said today the rain will stop sometime in MAY ! GREAT.....

greg

Re: Steamer
 

Just an update of the wheel system. I turned the rims from delron and on the back made it one rim with a two tire bead.
http://i1235.photobucket.com/albums/.../Cat789009.jpg
To hold the wheels on I embedded 3/16" rod into the hubs with epoxy to drive the rims.
http://i1235.photobucket.com/albums/...Cat7890082.jpg
picture of rim from front and rear.
http://i1235.photobucket.com/albums/.../Cat789010.jpg
http://i1235.photobucket.com/albums/.../Cat789011.jpg
A couple of shot with the painted and installed rims.
http://i1235.photobucket.com/albums/...Cat7890052.jpg
http://i1235.photobucket.com/albums/...Cat7890132.jpg
Ive also started on the cylinders and here's the first results.
http://i1235.photobucket.com/albums/.../Cat789014.jpg
When I get a little further along with the cylinders I'll post some more pictures.
Thanks for looking.
Rob

Re: Steamer
 

Hey Rob lookin good! Lou and I just spent the afternoon talkin trash about you...HAHA not really but he did say that you were making progress and obviously you are!

Reg

Re: Steamer
 

Looking very good rob..that brute will be able to haul twice as much as Regs Uclit lol ..Hey I hope you can forgive me about the trash talking..

Re: Steamer
 

What? That's it...I'm building a 797 in 1/10 scale! Haha

Re: Steamer
 

Wow Reg that things going to be huge. You will almost be able to sit in and drive it. Been working building the two stage cylinders and they now are finished. Still haven't tried them yet but I think I have all the bugs worked out. Will try to get pictures up tomorrow.
Rob

Re: Steamer
 

Nice work on the Mammoth, Rob. The new rims are nice. The Aeromax looks like a really nice truck too. The dump trailer fits it well.

Re: Steamer
 

The dump looks better with the new planitary hubs and painted, the dump trailer is awesome as well love it looks like what we have used a Clements bridger trailer...

Re: Steamer
 

Well here's the latest on the cylinders. First picture has one cylinder in pieces and one together. First big problem I had was I was trying to hold too close a tolerance on the rod guide bushing and this caused them to bind up.
http://i1235.photobucket.com/albums/...linders003.jpg
So I took everything apart and polished the piston rods down another 2 thou and they seemed to work better but still hung up coming back down. Should say these are single acting so are supposed to fall when the pumps are reversed and remove the oil.
http://i1235.photobucket.com/albums/...linders004.jpg
What I think is happening is the oil is creating suction when the pistons bottom out in the bores as there's no way for the trapped air and oil to escape.
http://i1235.photobucket.com/albums/...linders005.jpg
So I think the next job will be to drill an #80 drill out through the end of the first stage guide bushing and the end of the second stage guide rod. It's a long shot and I'm hoping that it will break the vacuum to stop the hangups.
http://i1235.photobucket.com/albums/...linders006.jpg
One thing I must say is that there is no lack of lift with those small wedico pumps. With the large bore of 3/4" and the small one at 3/8" it will lift a 11 kilo bag of lead up like crazy. Even tried the bag out on the rock lid and it didn't change at all. From box down to full up about 10 seconds.
Thanks for looking
Rob

Re: Steamer
 

Lookin real good Rob!

Re: Steamer
 

That looks awesome Rob, I'm sure it works super slick! :cool:

What's your closed vs open lengths?

Pics of them installed open & closed would be a treat! :)

Is there a procedure you do to bleed the cyl when 1st oil is pumped?

The rule of thumb I have always done with the wdc & Leimbach telescopes to remove all the air was to turn the cyl upside down, so the entry of oil is at the top. Then extend the cyl with pumped oil, keeping some resistance pressure by holding base in my hand - other end against my knee till its fully extended. Relax, wait a few minutes for air bubbles to rise to entry/exit fitting. Then with some force by my own hand 1st & then activating pump to reverse oil flow with constant hand force too till cyl is fully retracted. Repeat process 2 more times to ensure every last air bubble is out of the system and hopefully telescope works smoothly. ;)

Re: Steamer
 

Nice work Rob. Thanks for the photos

Re: Steamer
 

Here's a picture and a couple of Video from the Trains show yesterday in Campbell River
Good comparison of the 966 and 980 side by side.
http://i1235.photobucket.com/albums/...psb4a7230f.jpg
Vid
http://i1235.photobucket.com/albums/...ps304e0358.jpg
Vid
http://i1235.photobucket.com/albums/...ps76a21d18.jpg
Vid
http://i1235.photobucket.com/albums/...psae22f75e.jpg

More to come after todays show.
Thanks for looking
Rob

Re: Steamer
 

It's great to see what you posted thus far Rob.. I was waiting to comment after you posted the rest of the eventful wkend. :)

Re: Steamer
 

789C is finally cosmetically finished. Just need to build the radio rack and do some more work on the hydraulic cylinders and she's ready to haul dirt.
http://i1235.photobucket.com/albums/...ps40ea9191.jpg
http://i1235.photobucket.com/albums/...ps741f1a4a.jpg
http://i1235.photobucket.com/albums/...psaf46a27f.jpg
I have to modify the lift cylinders because the tolerances were too tight and won't come back down properly. I think if I change from o rings to cup seals it should work better.
Thanks for looking
Rob

Re: Steamer
 

That looks really nice! Way better then the Tamiya Mammoth it started out as. Nice job.

Re: Steamer
 

Looks sweet Rob! Hopefully I will get to see it soon!

Re: Steamer
 

The frame looks good with that fresh paint. Looking forward to getting it dirty.

Greg

Re: Steamer
 

Rob

I had the same problem witn my telescoping cylinders I found the solution was to add a ring just above the piston seal about 1/2" wide this eliminated the binding problem. I was lucky with the rear dump as I had more stroke than I needed and could add the 2 1/2" stops
Hope this helps.
Earl

Re: Steamer
 

Earl. thanks for the great suggestion. When I get back on the project I'll give that a try. I also thought about putting in return springs on the piston rods inside the cylinder. There's lots of room inside and more power from the pumps than needed to lift the body full of dirt. I'm hoping that the spring action will start them down.
Thanks Rob

Re: Steamer
 

Rob
Like you I was getting frustrate with the slow down on the 2 stage cylinders on my rear dump, so I fixed it Ij ust reverse the hydraulic pump it comes down as fast as it goes up, I could do this as the pump I built and I knew I could reverse it and the pump is only connected to the lift cylinders, just a thought

Earl

Re: Steamer
 

I'm using Wedico pumps on this one and they're designed to run both ways forward and reverse. My problem is when the cylinders are full stroke the pumps pull all the oil out and create a vacuum. You can imagine what happens then, the box slams all the way to the bottom because there's no oil cushion left in the cylinders. I thinking with the internal springs there should be enough return pressure to start the box down when the pump reverses. At least that's what I'm hoping for.
Rob

Re: Steamer
 

So Rob, Are you coming to Duncan or what?