Pto Circuit - Toro Groundsmaster 7200 Service Manual

PTO Circuit

The transmission used on Groundsmaster 7200 and
7210 machines includes a hydraulic, multi–plate clutch
that is used to engage the PTO. Hydraulic flow for PTO
clutch engagement is provided by the transmission
charge pump.
When the PTO switch is turned on, the transmission so-
lenoid valve is energized to allow hydraulic flow to en-
gage the PTO clutch. As the PTO clutch engages, an
integral PTO brake is simultaneously released to allow
rotation of the drive shaft and cutting deck (or imple-
ment). An orifice and accumulator in the transmission
prevent abrupt engagement of the PTO.
Groundsmaster 7200/7210
Pressure to the PTO clutch is limited by the pressure
valve in the transmission. Pressure valve setting is from
280 to 340 PSI (19.3 to 23.4 bar).
When the PTO switch is turned off, the transmission so-
lenoid valve is de–energized and the PTO clutch is dis-
engaged. The integral PTO brake is applied to control
the stopping rate of the drive shaft and cutting deck (or
implement).
Page 4 – 17 Hydraulic System