So I've put to pasture an old Cheetah gear box due to a broken input shaft and the fact that the parts to repair it will be about 3/4 of the cost of a new higher HP rated box. In order to get the larger Omni to fit I will have to drill out the mounting holes for the new box but there is plenty of clearance for that so no worries.
The real question is about the ratio of the new box. My old box was a 1.47:1 and it seemed as though when trying to mow in real thick brush I had to go obnoxiously slow(even with sharp blades and by sharp I mean brush cutter sharp) due to the fact it would just lay the grass over more than cutting it. The tractor has plenty of HP to run the original gear ratio. Would there be any down side to going w/ a 1.93:1 ratio instead of the 1.47:1 gear box in order to get a faster blade speed. (About 4 more rotations/sec)The boxes are available in both ratios.
What does the majority think? Please ask questions as needed to get any picture of the situation that I have not included.
And yes, I do run the mower over thicker brush and saplings.
I am also going to a slip clutch instead of just a sheer pin.
The real question is about the ratio of the new box. My old box was a 1.47:1 and it seemed as though when trying to mow in real thick brush I had to go obnoxiously slow(even with sharp blades and by sharp I mean brush cutter sharp) due to the fact it would just lay the grass over more than cutting it. The tractor has plenty of HP to run the original gear ratio. Would there be any down side to going w/ a 1.93:1 ratio instead of the 1.47:1 gear box in order to get a faster blade speed. (About 4 more rotations/sec)The boxes are available in both ratios.
What does the majority think? Please ask questions as needed to get any picture of the situation that I have not included.
And yes, I do run the mower over thicker brush and saplings.
I am also going to a slip clutch instead of just a sheer pin.
Last edited: