Who has set up a stand alone Hydraulic for their LT70?

[just_sawing]

I am tired of the 12V Hydraulic hiccups on my LT70 and since I am setting up a Log Rack that is going to be Hydraulic I am thinking about a AC unit for all. 
 How did you do it and what flow did you go with.

[Southside]

My Super 70 runs 18 GPM when the band is engaged and both pumps are pushing oil, that should give you plenty.   

[stavebuyer]

5-6 GPM hydraulic power pack. Remove the 12V contact button from the power strip. Unhook and cap off the pumps and run your new pressure line into the WM valve bank where you disconnected the existing line coming from pump #2. Your joystick control remains the same except now it will always work and be faster!

 Best I recall you need an extra tee as the bypass oil from the valve bank feeds back to the pumps too but its been almost a decade for me. You used to be able to add a valve function from Wood_mizer to control the log deck from the existing Joy stick.

[stavebuyer]

My Super 70 runs 18 GPM when the band is engaged and both pumps are pushing oil, that should give you plenty.  

The 12V pumps/valves were designed for +/- 3gpm on the original 70s and wont handle more than about 6. I was blowing lines and having heat issue with 10gpm and had to scale it back. 5 gpm through those small lines/valve fittings will through a log over the backstop. Your super also uses hydro for more than log handling does it not?

[Southside]

Up / down and head feed, but clearly those functions are using reduced volume. 

It's funny because the lines are 3/8", yet the fittings are 1/4". 

Throwing a log over the backstops is considered sport around here.  We have marks for the longest launch.  :D

[moodnacreek]

For machines that sit out, get transported, exposed to salt, sawdust and age electric will be nothing but trouble especially if not industrial and kept protected like with silicon grease. I suppose with the engine on the travelling band saw it would be tough to add a hydraulic system.  If it where me it would be all hyd. even if it required a second engine.

[customsawyer]

I use one on both of my LT70s. The first one I got from a outfit in Mexico, MO. Bibbyman had added it to his LT40 and they had already done the leg work on GPM and pressure so I just bought it from them and paid shipping. This was back in '06 or '07. The last one I got through WM a few years ago. If you are stationary I would get it. They will eliminate most hyd. problems.

[mike_belben]

it is easy if you have the money and perseverance to follow through with buying all the right parts and not trying to design something around any of the wrong parts.  wrong components is always a bandaid trainwreck and rube goldberg crap to make it kinda work like it should.  


if you are serious about doing an expandable stand alone system, sit down with a few scraps of paper, and sketch up a few ideas of what all you would power in your dream setup, staying slightly grounded to the reality of what you will really follow through with.  figure out the GPM and PSI of each component and pencil in any pieces you have right now that constrain any parameters.  for instance, 'i have this rotted ford 300 straight six truck out back with a granny low transmission that runs'

or "i have this 15hp 3phase motor with no use thats good."  

everything new is expensive but scrap isnt too high.  if you are into repurposing, old cranes and sweepers have a lot of high end hydraulic parts to donate that arent servo or pilot control. 

take a pic of what you draw up, including realistic layout of where you would put the engine, the valve, the logdeck, the greenchain etc etc and we can help you better from there all looking at the same picture in your head. its much harder to do in words.  i have never looked at a woodmizer and know theyre unique so am never able to help troubleshoot or alter them. 

[Dave Shepard]

Mike, with the exception of the 70 Super, WM hydraulics are just a 6 or 7 valve bank with an in and an out. There is a micro switch to turn the 12v pumps on. Supply enough gpm (relief is built in) and Bob's your uncle, as they say in some parts of the world. :D

[mike_belben]

thanks for letting me know dave.  like i said, never seen one so for me to ask 50 questions that everyone else knows the answer to is sorta of a distraction.  its more efficient to let someone else cover it.  if i could help i would