Re: dresser TD40B dozer
 

Clyde I just hit it with a quick coat for pics. I hope to blast and paint when done .

Re: dresser TD40B dozer
 

ahh thats a good idea then you don't have to fight the rust like i do lol

Re: dresser TD40B dozer
 

yea I learned that the hard way :confused:

I'm thinking of leaving the tracks wide instead of cutting the 1/2" off to bring to scale width . Kinda looks like a wide track . I'm going with the single motor drive , just to see if it is possible in RC . I got pretty much figured out , just the time and parts

http://i830.photobucket.com/albums/z...r/PIC_0635.jpg

http://i830.photobucket.com/albums/z...r/PIC_0638.jpg

and a quick peek of this

http://i830.photobucket.com/albums/z...r/PIC_0641.jpg

http://i830.photobucket.com/albums/z...r/PIC_0642.jpg

I still have to machine the shaft and bolt together to test flow and pressure . only non calculated variable is the motor ( not sure if it has what I need ) but we'll see :confused: this is just a trial to see if I can make a pump from the scrap pile :o

Re: dresser TD40B dozer
 

I'm glad your going with one motor and steering clutches, you can be the guinea pig to see if works.lol Any more progress on the pump?

Re: dresser TD40B dozer
 

yes I actually put it together and tried it , have some seal reworking to do . It leaked between pump and motor :( . Yes ,I'll be the guinea pig on this 1 ,and will not give up till it works :D . need less to say nothing will be running anytime soon :( , lot of small parts to make . I need to get some chunks of aluminum to make 4 trannies for the scrapers , 2 reversers for this , valves , and pumps . if the vain is a no go then back to the gears :confused: .

Re: dresser TD40B dozer
 

well I got my pump working :) still got to get a shaft seal , A quad ring just not going to cut it :( ( should've known better :o ) . now on to the next unaffordable part :( valves . I think I'm going to wear this taig mill out with these 3 machines :eek:

IHSteve

Re: dresser TD40B dozer
 

Nice work on the pump - a vane pump you say. Wow, nice work. Would a press fit bronze SAE863 collar on the shaft help seal it? Are you planning to make the valves? If so, are you going to do a closed or open hydraulic system?

Re: dresser TD40B dozer
 

Nice progress Steve. Pump looks good!

Those HD brand servos I told you about on the phone don't like to sit for a long time under load, they have so much holding strength that they burn up from heat. So, they probably would be good to move/hold valves.

Re: dresser TD40B dozer
 

I'm might try something off the shelf first . not sure yet on open or closed . as for seal , I just used what I had laying around to try it out .



thanks Scott , any servo holding a load for a long period of time is not good for it , I would think . I'll cross that 1 when I can get to it .

Re: dresser TD40B dozer
 

Steve,
looking good man i must say u r crazzzyyy!!!!!!!!!
LOL

Re: dresser TD40B dozer
 

AAAAANNNNNDDDD getting worse :eek::eek::D:p

thank you Greg

Re: dresser TD40B dozer
 

Any progress Steve?

Re: dresser TD40B dozer
 

dozier lookin good keep on fabbin:cool:

Re: dresser TD40B dozer
 

only a little , Joe , welded up 1 track frame tonight had to get 68 steel wheels to the powder coater now got to finish the hubs for them and the next batch . my rollers will be hard ( cummins cam followers :p ) ? for you did you use bearings in yours or just a brass bushing ? I was thinking sealed bearings but may go with oil lite bushings and looks like the $ is keeping me on the make it my self path for awhile . got the shaft seal for the pump just didn't get it in yet .


thanks , Oh I will :p:D lots more to build

Re: dresser TD40B dozer
 

I used oiled bushings, no wear yet.

Re: dresser TD40B dozer
 

yea I'm leaning more toward them It's not like the full size where it take a couple hrs to change 1 .

Re: dresser TD40B dozer
 

well we need pics!!!!!!!!!!!! lol i am wanting to see if the one motor and planitarys on the outside is going to work I hope it does cuz i have a few ideas

Re: dresser TD40B dozer
 

you'll need a lot of this http://www.easyfreesmileys.com/smile...mileys-799.gif :D

Re: dresser TD40B dozer
 

here you go Henry :p not much

http://i830.photobucket.com/albums/z...r/PIC_0663.jpg

http://i830.photobucket.com/albums/z...r/PIC_0662.jpg

Re: dresser TD40B dozer
 

Nice work rollers take forever to make lol