Charlie_Iliff
Veteran Member
- Joined
- Jun 13, 2001
- Messages
- 1,890
- Location
- Arnold, MD
- Tractor
- Power Trac PT1845, John Deere 2240, John Deere 950, John Deere 755, Jacobsen Turf Cat II
Re: larger, taller tires on a 400???
Robert:
Keep in mind that I am not an engineer, and don't have data on the 422 that would allow analysis, even if I were an engineer. Power Trac advises against dual wheels on the 400 series, because of loads on the wheel motor mounts when the outer tire is on a high spot, and the machine is loaded. Taller tires shouldn't present that problem. They would raise the CG somewhat, and increase loads in fast turns, but I would think the latter are a minor consideration. I would certainly recommend taller wheels and tires before moving the wheel motors.
Power Trac has lower tires on their dual setups on the larger tractors than the single tires on the same machines.
If you increase tire size, you do reduce pulling force and increase speed, proportionally to the change in radius.
There are quite a number of wheel/tire combinations out there. If you find the right bolt pattern, it sounds worth a try.
Another alternative, of course, is to get a 4 n 1 bucket or box blade, and smooth the area you run over so the increased clearance isn't needed. /w3tcompact/icons/laugh.gif/w3tcompact/icons/laugh.gif
Robert:
Keep in mind that I am not an engineer, and don't have data on the 422 that would allow analysis, even if I were an engineer. Power Trac advises against dual wheels on the 400 series, because of loads on the wheel motor mounts when the outer tire is on a high spot, and the machine is loaded. Taller tires shouldn't present that problem. They would raise the CG somewhat, and increase loads in fast turns, but I would think the latter are a minor consideration. I would certainly recommend taller wheels and tires before moving the wheel motors.
Power Trac has lower tires on their dual setups on the larger tractors than the single tires on the same machines.
If you increase tire size, you do reduce pulling force and increase speed, proportionally to the change in radius.
There are quite a number of wheel/tire combinations out there. If you find the right bolt pattern, it sounds worth a try.
Another alternative, of course, is to get a 4 n 1 bucket or box blade, and smooth the area you run over so the increased clearance isn't needed. /w3tcompact/icons/laugh.gif/w3tcompact/icons/laugh.gif
