Jacking Points; Tie Downs; Operating Characteristics; Operating Tips - Toro 03781 Operator's Manual

1. Bypass valve
3. Rotate the bypass valve 90° (1/4 turn) back before
starting the engine. Do not exceed 7-11 N·m
(5-8 ft.-lb.) torque to close the valve.

Jacking Points

•
On the front of the machine on the frame on the inside
of each drive tire
•
On the rear of the machine at the center of the axle

Tie Downs

•
On each side of the frame under the front steps
•
The rear bumper

Operating Characteristics

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 traction unit and cutting units are the
transmission, engine speed, load on the cutting blades and
the importance of the brakes.
To maintain enough power for the traction unit while
operating, regulate the traction pedal to keep the engine RPM
high and somewhat constant. A good rule to follow is to
decrease the ground speed as the load on the cutting units
increases, and increase the ground speed as the load decreases.
Therefore, allow the traction pedal to move backward as the
engine RPM decreases, and depress the pedal slowly as the
RPM increases. By comparison, when driving from one work
area to another, with no load and cutting unit raised, have the
throttle in the Fast position and depress the traction pedal
slowly but fully to attain maximum ground speed.
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
Figure 40
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 roll overs. For steering control, the cutting unit 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 stopping the engine, disengage all controls and move
the throttle to Slow. Moving the throttle to Slow reduces high
engine RPM, noise, and vibration. Turn the key to Off to
stop the engine.

Operating Tips

Familiarization
Before mowing grass, practice operating the machine in an
open area. Start and stop the engine. Operate in forward and
reverse. Lower and raise the cutting units and engage and
disengage the reels. When you feel familiar with the machine,
practice operating up and down slopes at different speeds.
Warning System
If a warning light comes on during operation, stop the
machine immediately and correct the problem before
continuing operation. Serious damage could occur if you
operate the machine with a malfunction.
Mowing
Start the engine and move the engine speed switch to the Fast
position. Move the Mow Speed Limiter to the mow position.
Move the PTO switch to the ON position and use the Lift
Switch to control the cutting units (the front cutting units
are timed to lower before the rear cutting units). To move
forward and cut grass, press the traction pedal forward.
Transport
Move the PTO switch to the OFF position and raise the
cutting units to the transport position. Move the Mow Speed
Limiter to the transport position. Be careful when driving
between objects so you do not accidentally damage the
machine or cutting units. Use extra care when operating the
machine on slopes. Drive slowly and avoid sharp turns on
slopes to prevent roll overs. Lower the cutting units when
going downhill for steering control.
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