Adjust Mowing Speed; Adjust Cutting Unit Drop Speed - Toro Greensmaster 3250-D 04383 Service Manual

Adjust Mowing Speed

The machine is adjusted at the factory, but speed may
be varied if desired.
1. Loosen jam nut on trunnion cap screw located on
the traction control assembly.
2. Loosen nut securing the lock and mow brackets on
pedal pivot.
3. Rotate trunnion cap screw clockwise to reduce
mowing speed or counterclockwise to increase mow-
ing speed.
4. Tighten jam nut on the trunnion cap screw and nut
on the lock and mow brackets to lock adjustment. Check
adjustment and re--adjust as required.

Adjust Cutting Unit Drop Speed

The machine's rear cutting unit lower circuit has a flow
control valve which is preset at the factory to about 3
turns open. An adjustment may be required to compen-
sate for differences in hydraulic oil temperatures, mow-
ing speeds, etc. If an adjustment is required, proceed as
follows:
Note: Allow hydraulic oil to reach full operating tem-
perature before adjusting flow control valve.
1. Raise seat and locate flow control valve mounted to
the hydraulic cylinder for the center pull frame.
2. Loosen set screw on the adjusting knob of the flow
control valve.
3. If the center cutting unit is dropping too late, rotate
knob 1/4 turn counterclockwise.
4. If the center cutting unit is dropping too early, rotate
knob 1/4 turn clockwise.
5. After desired setting has been achieved, tighten set
screw.
Greensmaster 3250--D
2
1. Jam nut
2. Nut
2
1. Flow control valve
Page 4 - - 53
1
3
Figure 24
3. Trunnion cap screw
1
Figure 25
2. Rear hydraulic cylinder
Hydraulic System (Rev. I)