Controls System Maintenance; Adjusting The Cutting Unit Lift/Drop; Adjusting The Lift Cylinders - Toro Greensmaster 04358 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. Raise the seat and locate the flow-control valve
for the center-pull frame
located on the side of the hydraulic manifold.
Figure 47
1. Flow-control valve
2. Loosen the jam nut on the adjusting knob on the
flow control valve.
3. Rotate the knob counterclockwise if the center
cutting unit is dropping too late or clockwise if
the center cutting unit is dropping too early. 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.
47). This valve is preset
(Figure 47) which is
3 as

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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