Understanding The Operating Characteristics; Automatic Reversing-Fan Cycle; Operating Tips - Toro Groundsmaster 5910 Operator's Manual

Understanding the Operating
Characteristics
Practice driving the machine, as it has a hydrostatic
transmission, and its characteristics may differ from other
turf-maintenance machines.
To maintain enough power for the traction unit and
implement while operating, regulate the traction pedal to
keep the engine speed (rpm) high and constant. Decrease the
ground speed as the load on the implement increases, and
increase the ground speed as the load decreases.
Allow the traction pedal to move backward as the engine
speed (rpm) decreases, and press the pedal slowly as the
engine speed increases. By comparison, when driving between
work areas, with no load and the mower deck raised, set the
throttle in the highest position and press the traction pedal
slowly, but fully, to attain maximum ground speed.
Before stopping the engine, disengage all controls and move
the throttle to the slowest position, which reduces the engine
speed (rpm), noise, and vibration. Turn the ignition key to
the O position to shut off the engine.
FF
Before transporting the machine, raise the mower decks and
secure the transport latches on the side mower deck
34).
Figure 34
1. Transport latch
Automatic Reversing-Fan
Cycle
The hydraulic-fan speed is controlled by the hydraulic-oil
temperature. The radiator-fan speed is controlled by the
engine-coolant temperature. A reverse cycle automatically
initiates when either the engine coolant or hydraulic-oil
temperature reaches a certain point. This reversal blows
debris off the screens, lowering the engine and hydraulic-oil
temperatures (Figure 35).

Operating Tips

Selecting the Proper Height-of-Cut
Setting
Remove approximately 25 mm (1 inch) or no more than 1/3
(Figure
of the grass blade when cutting. In exceptionally lush and
dense grass, you may need to raise the height-of-cut to the
next setting (Figure
Mowing When Grass is Dry
Mow either in the late morning to avoid the dew, which causes
grass clumping, or in late afternoon to avoid the damage that
direct sunlight can do to sensitive, freshly mowed grass.
Mowing at Proper Intervals
Under most normal conditions you will need to mow
approximately every 4 to 5 days. However, grass grows at
different rates at different times. To maintain the same height
of cut, which is a good practice, you will need to cut more
frequently in early spring; as the grass growth rate slows in
mid summer, cut only every 8 to 10 days. If you are unable
to mow for an extended period due to weather conditions or
other reasons, mow first with a high height of cut; then mow
again 2 to 3 days later with a lower height setting.
34
G010392
Figure 35
36).
Figure 36