Using The Differential Lock; Using 4-Wheel Drive - Toro 07383 Operator's Manual

If the load is positioned toward one of the sides, it will make
the machine much more likely to tip over on that side. This
is especially true when turning if the load is on the outside
of the turn.
Never position heavy loads behind the rear axle. If the load is
positioned so far to the rear that it is behind the rear axle, it
will reduce the weight on the front wheels and this will reduce
steering traction. With the load all the way to the back, the
front wheels can even come off of the ground when going
over bumps or up a hill. This will result in a loss of steering
and may lead to the machine tipping over.
As a general rule, position the weight of the load evenly
from front to rear and evenly from side to side.
If a load is not secured, or you are transporting a liquid in a
large container such as a sprayer, it can shift. This shifting
happens most often while turning, going up or down hills,
suddenly changing speeds, or while driving over rough
surfaces. Shifting loads can lead to tip overs. Always secure
loads so that they do not shift. Never dump the load while
the machine is sideways on the hill.
Heavy loads increase stopping distance and reduce your
ability to turn quickly without tipping over.
The rear cargo space is intended for load carrying purposes
only, not for passengers.

Using the Differential Lock

The differential lock increases the machine traction by locking
the rear wheels so one wheel will not spin out. This can help
when you have heavy loads to haul on wet turf or slippery
areas, going up hills, and on sandy surfaces. It is important
to remember, however, that this extra traction is only for
temporary limited use. Its use does not replace the safe
operation, already discussed concerning steep hills and heavy
loads.
The differential lock causes the rear wheels to spin at the
same speed. When using the differential lock, your ability to
make sharp turns is somewhat restricted and may scuff the
turf. Use the differential lock only when needed, at slower
speeds and only in first or second gear.
WARNING
Tipping or rolling the machine on a hill will cause
serious injury.
• The extra traction available with the differential
lock can be enough to get you into dangerous
situations such as climbing slopes that are too
steep to turn around. Be extra careful when
operating with the differential lock on, especially
on steeper slopes.
• If the differential lock is on when making a
sharp turn at a higher speed and the inside rear
wheel lifts off the ground, there may be a loss of
control which could cause vehicle to skid. Use
the differential lock only at slower speeds.

Using 4-Wheel Drive

4-Wheel-Drive Models Only
The Automatic, on Demand 4-wheel-drive feature, on this
vehicle does not require operator activation. The front wheel
drive is not engaged (no power delivered to front wheels)
until the rear wheels begin to lose traction. The bidirectional
clutch senses the rear wheels slipping, engages the front
wheel drive, and delivers power to the front wheels. The
4-wheel-drive system continues to deliver power to the front
wheels until the rear wheels have enough traction to move
the vehicle without slipping. Once this occurs, the system
stops delivering power to the front wheels and the handling
characteristics become similar to that of a 2-wheel-drive
machine. The 4 wheel drive system functions in both froward
and reverse, however, when turning the rear wheels will slip
slightly more before power is delivered to the front wheels.
WARNING
Tipping or rolling the machine on a hill will cause
serious injury.
The extra traction available with the 4-wheel-drive
feature can be enough to get you into dangerous
situations such as climbing slopes that are too
steep to turn around. Be careful when operating,
especially on steeper slopes.
30