Four Wheel Drive Operation - Toro 30582 Operator's Manual

Note: We recommend HIGH RANGE ground speed be
used for road travel only (with cutting units up).
Points to consider while operating the traction unit, cutting
units or other implements are the hydrostatic transmission,
engine speed, load on the cutting blades or other implement
components and the importance of the brakes. To maintain
adequate power for the traction unit and implement
components while operating, regulate traction pedal
position to keep engine rpm high and relatively constant.
Good rules to follow are; decrease ground speed as the
implement load increases, and increase ground speed as the
load decreases.

Four Wheel Drive Operation

Four wheel drive is only available in the low range. Place
the High/Low Range Switch in the low range to operate the
four wheel drive system. Four Wheel Drive is designed as a
traction assist to the front traction wheels. In wet conditions
or during a steep hill climb, loss of traction may occur
causing the front tires to spin.
Toggle the switch in the on or forward position to engage
the four wheel drive in forward. Toggle the switch in the
momentary or reverse position will engage the four wheel
drive in reverse.
Note: Come to a complete stop before engaging or
disengaging the four wheel drive.
If the
high/low range switch is not placed in the low range
when the decks are lowered, the machine will automatically
shift into the low range. If the decks are raised into the
transport position the high/low range switch must be
switched to low and then to high range to re–engage
transport speed (high range).
Note: The rear tires will not spin freely causing loss of
steering.
Note: Mow speed will drop from 7.5 mph to 5.5 $.5 mph
with 4 wheel drive engaged.
Warning Systems
If a warning light and audible warning come on during
operation, stop immediately and correct the problem before
continuing. Serious damage could occur if the machine is
operated with an uncorrected problem. However, if the
engine stops because of overheating, the emergency
over–ride button can be used to operate the engine for short
intervals (Fig. 32).
1. Engine override button
Mowing
When approaching area to mow, position the ground speed
selector in LOW RANGE and release. Switch lever will
return to neutral and High Range light will go out. Move
the throttle lever to FAST and lower the cutting units. Pull
the sleeve of the deck drive PTO switch up, position it in
ENGAGE position and release. Lever will return to neutral
position and PTO will be engaged automatically. Depress
traction pedal slowly to begin cutting operation.
Note: After lowering mowers, do not allow levers to snap
back to neutral. This could allow the levers to go past
neutral, lock the cutting units in a non-float mode and
prevent them from following turf contours.
Should either outboard cutting unit contact an immovable
object while mowing, the mower lift arm latch assembly
absorbs the impact and breaks away. This allows the cutting
unit to swing rearward. Should this occur, stop the machine.
Fully raise the cutting unit, then lower it to cutting position.
This will allow the lift arm latch assembly to return to
normal configuration. Be sure to inspect the cutting unit for
damage and repair as necessary before resuming operation.
The individual wheel brakes can be used to assist in turning
the machine. However, use them carefully, especially on
soft or wet turf because it may be torn accidentally. The
brakes are also beneficial to maintain traction; for example,
in some slope conditions, the uphill wheel may slip and
lose traction. If this occurs, gradually depress the uphill
brake pedal until the uphill wheel stops slipping, thus
increasing traction on the downhill wheel.
To stop mowing, depress the brake pedal to stop and
disengage the cruise control (if used), move the PTO switch
to DISENGAGE and release (switch returns to neutral),
then fully raise the cutting units.
33
Figure 32
1