More progress on Loader-Mutt!
Tonight's effort was more-less on the foot-operated ratio controls. I love my 109, especially now that it's got hydraulic lift, but one of my not-so-likings is that while it only takes two hands to drive, it takes three hands to operate the dozer-blade I've seen a few other's concepts of moving the ratio-controls down to the feet, and some methods I liked, and some I don't. Since I'll be running the loader, I'll want one (right) hand free to operate the loader's control valves. The other hand will be on the wheel, enjoying power steering. That leaves two feet free to do other tasks. I've decided that I'll have ratio/direction control at my toes, as well as separated brake pedals for those instances when I need turning assistance or need to tie-down a spinning wheel.
Please ignore the visual quality of tonight's work- it's predominantly a 'mock up', and once I've got all dimensions, etc. firmly resolved, I'll make the 'real thing' using good stuff and clean techniques.
I started by taking pieces of the old clutch-brake shaft and making it into a dedicated ratio-control shaft. I tacked a piece of drilled strap-iron to an original brake bellcrank, and did some backwoods-adaptation to make a clevis out of the old ratio-control's automatic-centering device. I hooked it all together with the original cam-slot plate, found an appropriate swing radius and setpoint to yield full forward, and full reverse with 25 degrees of shaft rotation in both directions.
Then I butchered an old wide-frame clutch-brake pedal
...Yes, I moved the blade-guide up so that it wouldn't obstruct the photo...
And layed it out against the frame for a look-see.
Notice the lines and notes drawn onto the frame? That's how I figured out my control geometry. I KNEW there was a reason why I didn't paint that end of the frame yet!
Here it is, with the pedal-plate lopped off, and all those QL-bends removed, and a new one added... tacked in place...
and with the pedal all the way down (full-forward-ratio)
and full up (reverse)
and spring-return to centered
Notice I've tacked on a heel-plate... it works nicely, but I'll probably make the 'real' pedal arrangement so that the heel plate is back another inch toward the rear fender, to allow more heel-clearance and better control over reverse ratio.
And here's Nick...
He's the biggest CUB fan in the whole house!