dresser TD40B dozer

[SmallHaul]

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.

[ihbuilder]

Originally Posted by Vanisle

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 .

Originally Posted by SmallHaul

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 .