![]() Any sprocket large enough to provide clearance is going to be geared too tall for the differential to survive. The ground clearance thing is a tough one. The flange bearings are 4 bolt with 1" i.d. I made the track carrier rails from 4"×2"×1/8" wall tubing. I got hubs for the idler sprockets with a 1" bore center and welded them into the sprockets. Now the brute force is all but gone.ĭrive sprocket is steel 14 tooth and idler sprockets are 8 tooth. ![]() I used to accel in brute force and stupidity. The whole track is actually pretty light. The track pads are 4"×6 1/2"×1/8" thick cold rolled flat steel. Each track on my dozer is exactly 10 feet long. It's got a working strength of 4,000 lbs or so with a breaking strength of over 30,000 lbs. The chain pitch is (and this is weird) "2.609" inch. The "hd" part means it has internal rollers. I sourced the chain, sprockets and sprocket hubs from "Red Boar Chain and Sprockets" (can I say that?) Good guys. Tracks! (Everybody wants to know about building tracks) couldn't be easier. Gear tooth wear was indicative of a well cared for transmission. The oil, though low, (she's a piddler!) Looked clean and cared for. I also pulled the differential top cover for a look at the all important spider gears, bearings and ring gear. I pulled the relief valves (actually did that first before testing g) and got them to pop up from their stuck down position. As I had already mounted the chassis on my improvised roll around cart, I couldn't test torque output but it seemed reasonable to assume it was generally serviceable. Pretty quiet for a hydro in my experience. I tested the hydrostatic transmission and it went forward/reverse without issue. I read somewhere that CC replacement engines are factory black? Anyway, after fiddling with electrical bits and replacing the carb with a knockoff, it fired right up and sounded perfectly healthy. Other than the suspicious black color, it appeared to be 100% stock. I started by spending some time checking the important stuff, namely drivetrain health. Love me some big projects and this one is checking all the boxes. I'll be breaking down the major milestones one at a time but can say I'm pleased and happy. We have a steep lawn and driveway and have yet to find a place it won't happily climb into or out of.Īs I stated, there is much massaging yet to do, but for this moment it's working far better than it has any right to and has exceeded all of my finger-crossed, Rube Goldberg Era design parameters. Even a 30" long, narrow track would have 873 times more winter traction than the best, chained and studded wheel version. I wanted a relatively short track length/width. I, unlike many of the YouTube conversion offerings, wanted to keep weight to a reasonable minimum. My goal was a 50% speed reduction with the corresponding increase in usable power as well as being more gentle on the differential and spider gears. With a high-wheeler, I could use whatever size drive sprocket I wanted. With a conventional design, I'd be pretty much stuck putting on the biggest drive sprocket I could find to get the ground clearance we needed. I knew that as a minimum set of goals, I wanted a high-wheel design for ground clearance and the ability to have more drive sprocket choices. A lot of what you see is not the final version, but merely the "I wonder if this will work?" stage of chair-seat design. I've been told the Eaton is easy to rebuild if needed, and parts/instructions are available.ġ) Haban Sickle Bar Mower model 415 A (COMPLETE and in NICE SHAPE!!)ġ) 54" Bolens mower deck (not rusted out, but needs some work)Īlso Manuals for the tractor, Haban sickle, and mower deck.While there are many remaining steps yet to do and then the necessary tuning and massage, it's safe to say that with 3 or 4 hours of run/work time behind us, it's working really well. The Eaton model 11 hydro seems to get hot, and loose pressure (stuck valve?) However, until it gets hot, tractor drives forward/reverse fine, and has up/down pressure on the lift. All tires are weather checked.Įngine starts quick, and runs well. AG treads on the rear.1 rear tire has a tube, 1 front tire has a tube/this tire isn't 'the best'. sized) -Model 1886-01ġ8HP Kohler cast iron twin cylinder engine-pressurized oil system with spin on oil filter, cast iron front axle-cast iron transaxle, hydrostatic trans/foot controlled, hydraulic lift-float-down pressure, lights, factory Bolens Cat 0 Three Point Hitch (currently on the tractor), 1 set of Bolens rear wheel weights. Bolens Large Frame Garden Tractor (S.G.T.
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