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  #41  
Old 11-07-2010, 08:16 PM
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Default Re: dresser TD40B dozer

Clyde I just hit it with a quick coat for pics. I hope to blast and paint when done .
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  #42  
Old 11-07-2010, 08:26 PM
td9clyde td9clyde is offline
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Default Re: dresser TD40B dozer

ahh thats a good idea then you don't have to fight the rust like i do lol
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  #43  
Old 11-10-2010, 10:13 PM
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Default Re: dresser TD40B dozer

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ahh thats a good idea then you don't have to fight the rust like i do lol
yea I learned that the hard way

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





and a quick peek of this





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 this is just a trial to see if I can make a pump from the scrap pile
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  #44  
Old 11-11-2010, 07:24 PM
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Default 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?
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  #45  
Old 11-11-2010, 08:34 PM
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Default Re: dresser TD40B dozer

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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?
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 . 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 .
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  #46  
Old 11-14-2010, 09:22 PM
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Default 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 ) . now on to the next unaffordable part valves . I think I'm going to wear this taig mill out with these 3 machines

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  #47  
Old 11-16-2010, 02:32 PM
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Default 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?
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  #48  
Old 11-16-2010, 03:15 PM
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Default 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.
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  #49  
Old 11-16-2010, 05:10 PM
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Default Re: dresser TD40B dozer

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Originally Posted by Vanisle View Post
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?

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 .


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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.

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 .
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  #50  
Old 11-16-2010, 05:42 PM
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Default Re: dresser TD40B dozer

Steve,
looking good man i must say u r crazzzyyy!!!!!!!!!
LOL
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  #51  
Old 11-16-2010, 06:38 PM
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Default Re: dresser TD40B dozer

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

thank you Greg
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  #52  
Old 11-22-2010, 08:24 PM
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Default Re: dresser TD40B dozer

Any progress Steve?
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  #53  
Old 11-22-2010, 08:50 PM
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Default Re: dresser TD40B dozer

dozier lookin good keep on fabbin
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  #54  
Old 11-22-2010, 09:23 PM
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Default Re: dresser TD40B dozer

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Originally Posted by dirtpusher9 View Post
Any progress Steve?
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 ) ? 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 .


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dozier lookin good keep on fabbin
thanks , Oh I will lots more to build
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  #55  
Old 11-22-2010, 09:29 PM
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Default Re: dresser TD40B dozer

I used oiled bushings, no wear yet.
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  #56  
Old 11-22-2010, 09:37 PM
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Default Re: dresser TD40B dozer

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Originally Posted by dirtpusher9 View Post
I used oiled bushings, no wear yet.
yea I'm leaning more toward them It's not like the full size where it take a couple hrs to change 1 .
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  #57  
Old 11-22-2010, 10:18 PM
td9clyde td9clyde is offline
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Default 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
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  #58  
Old 11-22-2010, 11:07 PM
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Default Re: dresser TD40B dozer

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Originally Posted by td9clyde View Post
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
you'll need a lot of this
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  #59  
Old 11-26-2010, 06:46 PM
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Default Re: dresser TD40B dozer

here you go Henry not much



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  #60  
Old 11-26-2010, 07:45 PM
td9clyde td9clyde is offline
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Default Re: dresser TD40B dozer

Nice work rollers take forever to make lol
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