Toro GREENSMASTER 3100 Operator's Manual page 21

brakes, etc.
LEAK DETECTOR OPERATION
The leak detector alarm may sound for one of the
following reasons:
1. A leak has occurred.
2. The oil level in the main reservoir is reduced by 4 to 6
ounces due to oil contraction from cooling.
If the alarm sounds, turn it off as quickly as possible and
inspect for leaks. If the alarm sounds while operating on a
green, drive off the green first. Determine the source of the
leak and repair it before continuing operation. If a leak is
not found and a false leak is suspected, move the ignition
switch to OFF and let the machine stand for 1–2 minutes to
allow the oil levels to stabilize. Then start the machine and
operate in a non-sensitive area to confirm that no leak
exists.
False alarms due to oil contraction may be caused by
extended idling after normal operation. A false alarm may
also occur if the machine is worked at a reduced work load
after an extended period of heavier work. To avoid false
alarms, turn the machine off rather than letting it idle for
extended periods.
ADJUSTING CUTTING UNIT
LIFT/DROP
The machine's cutting unit lift/drop circuit is equipped with
a flow control valve. This valve is pre-set at the factory at
approximately 3-1/2 turns open, but an adjustment may be
required to compensate for differences in hydraulic oil tem-
peratures, mowing speeds, etc. If an adjustment is required,
proceed as follows:
Note: Allow hydraulic oil to reach full operating tempera-
ture before adjusting the flow control valve.
1. Raise the seat and locate the flow-control valve mount-
ed to the main control valve.
2. Loosen the jam nut retaining the adjusting knob on the
flow control. When loosening the jam nut, hold the
flow control knob to prevent it from turning.
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.
3
1. Alignment strip
2. Approx. 12 cm
1. Flow control valve
21
4
2
1
Figure 15
3. Cut grass on right
4. Keep local spot 2
3 meters ahead of the
machine
Figure 16