Understanding The Operating Characteristics Of The Machine; Operating The Engine-Cooling Fan - Toro Groundsmaster 4500-D Operator's Manual

•
Perform a recovery-regeneration whenever
there is a loss of engine power and a parked
regeneration cannot effectively clean the DPF of
soot.
•
A recovery regeneration requires up to 4 hours
to complete.
•
You need a distributor technician to perform the
recovery regeneration process; contact your
Authorized Toro Distributor.
Understanding the
Operating Characteristics
of the Machine
Practice driving the machine because it has a
hydrostatic transmission and its characteristics are
different than many turf maintenance machines.
Some points to consider when operating the machine
and mower decks are the transmission, engine speed,
load on the cutting blades and the importance of the
brakes.
With Toro Smart Power™, the operator does not have
to listen to the engine speed in heavy conditions.
Smart Power prevents bogging down in heavy turf
by automatically controlling the machine speed and
optimizing cutting performance.
Another characteristic to consider is the operation
of the pedals that are connected to the brakes. The
brakes can be used to assist in turning the machine.
However, use them carefully, especially on soft or
wet grass because the turf may be torn accidentally.
Another benefit of the brakes is to maintain traction.
For example, in some slope conditions, the uphill
wheel slips and loses traction. If this situation
occurs, depress the uphill turn pedal gradually and
intermittently until the uphill wheel stops slipping, thus,
increasing traction on the downhill wheel.
Use extra care when operating the machine on
slopes. Make sure that the seat latch is properly
secured and the seat belt is buckled. Drive slowly and
avoid sharp turns on slopes to prevent rollovers. For
steering control, the mower decks must be lowered
when going downhill.
Important:
Allow engine to idle for 5 minutes
before shutting it off after a full load operation.
This allows the turbo charger to cool down before
shutting the engine off. Failure to do so may lead
to turbo-charger trouble.
Before shutting off the engine, disengage all controls
and set the engine speed to slow. Setting the engine
speed to slow reduces high engine rpm, noise, and
vibration. Turn the key to the O
the engine.
position to shut off
FF
Operating the
Engine-Cooling Fan
The engine cooling fan is normally controlled by the
machine. The machine has the ability to reverse
the fan to blow debris off the rear screen. Under
normal operating conditions, the machine controls
the fan speed and direction based on coolant and
hydraulic-fluid temperature, and the fan automatically
reverses direction to blow debris off the rear screen.
A reverse cycle is automatically initiated when either
the coolant or hydraulic-fluid temperature reaches a
specific temperature.
You can manually reverse the fan by pressing the 2
outer buttons of the InfoCenter for 2 seconds—the fan
completes a manually initiated reverse cycle. Reverse
the fan when the rear screen is clogged or prior to
moving the machine into the shop or a storage area.
43
Figure 48
g036843
g036844