Mamod TE1 Modification
|Mamod tractors are well built, reliable and practically indestructable, they just go too fast. The gearing with the stock belt drive is about a 10:1 reduction, with this gearing I have slowed it down to about 20:1 making the speed seem a little more realistic, and it gives a bit more pulling power as well.|
The gears are Meccano, a bored out and narrowed #25 pinion on the crankshaft, a #26 with the hub cut off and soldered to the shaft acting as an idler gear driving a #27a gear on the first counter shaft.
The first counter shaft has a #96a sprocket driving a #95a sprocket on the second counter shaft. A second #96a sprocket drives a 95b sprocket that is bored out to fit the main axle.
The stock axle had to be replaced with a longer one to account for the width of the large gear and a spacer on the other side which gives the tractor a much wider stance.
Video Of Clutch Mechanism
Video Of Tractor Running on Patio