Thanks Road. Once I settled down and started doing some math, this seems like less of an issue.
The 854 uses 4 pulleys whereas the 856 uses 2 - no big deal. If I keep the largest pulley coming off the gear box, I just need to buy 3 more and 2 belts. If I feed in 960 rpm from the pto, it should come out of the gear box at 1920 rpm. If I double it again, I get 3840 (the stated rpm of the impeller is 3800). If my starting pulley off the box is 6 inches (its close to that and I will measure it exactly) then I need a 3" to double my rpms. Then I just need to run identical 3" pulleys in place of the remaining 2 to keep 1:1 the rest of the way.
Should be fairly cheap and easy. I just need to figure out belts as the model 854 is not set up for adjustment between bore centers.
*Both photos borrowed from other members without permission - sorry. The 856 has been modified but illustrates the difference in the configuration of the pulleys.
The 854 uses 4 pulleys whereas the 856 uses 2 - no big deal. If I keep the largest pulley coming off the gear box, I just need to buy 3 more and 2 belts. If I feed in 960 rpm from the pto, it should come out of the gear box at 1920 rpm. If I double it again, I get 3840 (the stated rpm of the impeller is 3800). If my starting pulley off the box is 6 inches (its close to that and I will measure it exactly) then I need a 3" to double my rpms. Then I just need to run identical 3" pulleys in place of the remaining 2 to keep 1:1 the rest of the way.
Should be fairly cheap and easy. I just need to figure out belts as the model 854 is not set up for adjustment between bore centers.
*Both photos borrowed from other members without permission - sorry. The 856 has been modified but illustrates the difference in the configuration of the pulleys.
