Updates to Timberking 1220

[mroldstyle]

I got a pm from RobertG asking me about my power lift upgrade on my 1220 and thought I would start a post concerning it. I brought the saw head into the garage and made some modifications to it this winter. My primary goal was the power lift, I already had power drive on it.   

[mroldstyle]

OK now that I know I can post pics I'll move on. I used a tarp motor, with 60:1 ratio, and removed the factory crank. Initially I was going to leave the crank, but it seems to have a friction clutch to control the downward movement and it would bind up under downward travel. I used the factory gear on main shaft and have a 10-tooth gear on motor shaft, which turns at 49rpm. Speed seems to be pretty good without need for further speed controller, at about 1 inch per second as recommended by Mikron.    Mikron 350 setworks was added, very simple to install. I used a 12-volt winch relay from online.  You can see it bottom center of pic, just above the red switch.   

[mroldstyle]

I haven't got the saw head back out on the track yet to try it on a log, but the setworks seems pretty awesome with the testing I have done in the garage. Seems to be extremely accurate, with ability to have 4 preset sizes in memory, with an additional preset available if needed. Bumb up feature allows you to automatically raise it up to one of 4 predetermined spots. Above the log, just slightly above last cut, above first cut if you want to leave the stack of boards in place, and one other that I don't recall. I know the manual mentions using one setting for a drag back feature. It's very smooth, drops slightly below cut and then raises up to cut level. And it sure beats cranking it up and down by hand. 
 
The smaller plastic box below the main control box holds a 12-to-24-volt converter to run my power feed. The orange cord is plugged into a battery maintainer attached to battery. I replaced factory battery with a larger marine battery and moved it down to the base.
 
drive motor

[mroldstyle]

I also added an electric throttle control 
the gold-colored thing with blue wire loom leading into it. It's a fuel shutoff from a dodge Cummins, I believe.
Additionally, I added a lube control valve which comes on when the clutch is activated. Along with that is a homemade lube-mizer to add an extra squirt of fluid if needed.

[mroldstyle]

sorry about the double pic above, here is the drip and lube-mizer setup. It will squirt fluid from above and below blade.

[Nebraska]

Nice work. 

[mroldstyle]

thanks

[TimGA]

      Very nice clean looking job, hope it works well for you.

[jwtsst]

I'm working on a similar power feed setup for my 1220. Are you willing to share the specs on the number of sprocket teeth for both the electric motor and on the hand crank shaft? I'm assuming you got close on the feed rate with the gearing and then rely on the speed control for the rest.  This conversion will sure make the elbow and shoulder feel better at the end of the day.

[mroldstyle]

I will get a count on the teeth tomorrow for you.

[mroldstyle]

36 tooth on the motor 12 teeth on the drive. No idea what rpm is, I was running it on 12 volt but bumped it up to 24v. Seems a lot faster

[jwtsst]

Thanks for the information.  It is interesting trying convert in your brain the turn of a handle feed rate to power feed rate. I guess that it is why you use variable speed. Happy sawing.