Controls System Maintenance; Adjusting The Cutting Unit Lift/Drop; Adjusting The Lift Cylinders - Toro Greensmaster 3150 Operator's Manual

Controls System
Maintenance
Adjusting the Cutting Unit
Lift/Drop
The cutting unit lift/drop circuit comes with a
flow-control valve (Figure
at the factory at approximately 3 turns open, but you
may need to adjust it to compensate for differences in
hydraulic fluid temperatures, mowing speeds, etc.
Note:
Allow the hydraulic fluid to reach full operating
temperature before adjusting the flow-control valve.
1. Locate the flow-control valve below the seat
(Figure 50).
Figure 50
1. Flow-control valve
2. Loosen the jam nut at the adjusting knob on the
flow control valve.
3. Adjust the flow control valve as follows:
•
Rotate the knob counterclockwise if the
center cutting unit is dropping too late or
•
Rotate the knob clockwise if the center
cutting unit is dropping too early.
50). This valve is preset
Note:
You should not need to rotate it more
than 1/32 to 1/16 of a turn.
4. Test the adjustment and repeat step
needed; when finished, tighten the jam nut.

Adjusting the Lift Cylinders

To regulate the height of the front cutting units when
in the raised (transport) position, you can adjust the
front-lift cylinders.
1. Lower the cutting units to the ground.
2. Remove the bolts that secure the cover plate of
the lift cylinder that you are adjusting from the
support brackets of the chassis
1. Bolt
2. Right cover plate
g229755
3. Loosen the jam nut securing the clevis fitting to
the cylinder of the cutting-unit that needs to be
adjusted
g033382
1. Cutting unit-lift arm
2. Retaining pin
4. Remove the retaining pin and clevis pin
52)
40
Figure 51
3. Left cover plate
(Figure 52).
Figure 52
3. Clevis fitting
4. Clevis pin
3 as
(Figure 51).
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g229789
(Figure