Controls System Maintenance; Adjusting The Cutting Unit Lift/Drop; Adjusting The Lift Cylinders - Toro 04358 Greensmaster 3150 Operator's Manual

Controls System
Maintenance
Adjusting the Cutting Unit
Lift/Drop
The cutting unit lift/drop circuit is equipped with a flow
control valve (Figure 56). This valve is preset at the factory
at approximately 3 turns open, but an adjustment may be
required to compensate for differences in hydraulic oil
temperatures, mowing speeds, etc. If an adjustment is
required, proceed as follows:
Figure 56
1. Flow control valve
Note: Allow the hydraulic oil to reach full operating
temperature before adjusting the flow control valve.
1. Raise the seat and locate the flow control valve for the
center pull frame (Figure 56) which is located on the
side of the hydraulic manifold.
2. Loosen the jam nut on the adjusting knob on the flow
control.
3. Rotate the knob 1/4 turn counterclockwise if the center
cutting unit is dropping too late or 1/4 turn clockwise
if the center cutting unit is dropping too early.
4. After the desired setting has been achieved, tighten the
set screw.

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. Loosen the jam nut on the clevis of the cutting unit lift
cylinder that needs to be adjusted.
3. Disconnect the cylinder clevis from the lift arm.
4. Rotate the clevis until you attain the desired height.
5. Connect the cylinder clevis to the lift arm and tighten
the jam nut.
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