shellman
Guest
The two speed hydro is normally utilized with a power guide axle. When the high side of the two speed is engaged it destrokes the hydro motor resulting in less displacement for the motor thus a corresponding increase in motor rpm. Without the two speed when you engage the pga your ground speed is drops about 30% due to the added volume of the pga motors. If you have a true rice machine you should have two oil coolers for the hydro, a lower geared transmission, and an IPO valve in the hydro, which basicallyl shifts the hydro motor back to low range when the hydro drive pressure gets above about 3500 psi if memory serves correctly. If you have any other questions e-mail at besthornb@bartonccc.edu.