Adjusting The Cutting Unit Flow Control; Mower Maintenance; Pivoting (Tilting) The Front Cutting Unit Upright; Adjusting The Cutting Unit - Toro 30411 Groundsmaster 4100-D Operator's Manual

Figure 77
1. Test port I
The counterbalance test port (Figure 78) is used to
adjust the pressure in the counterbalance circuit.
Recommended counterbalance pressure is 470 psi
(3241 kPa). To adjust the counterbalance pressure,
rotate the adjusting screw (Figure 78) clockwise
to increase the pressure or counterclockwise to
decrease the pressure.
Figure 78
1. Counterbalance test port

Adjusting the Cutting Unit

Flow Control
The flow control valve (Figure 79) is used to adjust
the rate at which the cutting unit lowers.
2. Test port H
2. Counterbalance adjusting
screw
Figure 79
1. Flow control valve

Mower Maintenance

Pivoting (Tilting) the Front
Cutting Unit Upright
Note: Although not needed for normal
maintenance procedures, the front cutting unit
can be pivoted (tilted) to an upright position.
Should you desire to tilt the cutting unit, proceed
as follows:
1. Raise the center and wing cutting units slightly
off of the floor, set the parking brake, and stop
the engine. Remove the ignition key.
2. Remove the hairpin cotter securing dampers
to lift arms (Figure 80). Pivot damper toward
deck housing.
Figure 80
1. Damper
3. Remove the hairpin cotter and clevis pin
securing the height-of-cut chains to the rear of
the cutting unit (Figure 81).
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2. Hair pin cotter