Toro 30789, Руководство оператора

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20
OPERATING INSTRUCTIONS
1. Reach under traction unit and rotate by–pass valve
(Fig. 20) 1/2 to 1 turn counterclockwise. Opening the
valve opens an internal passage in the transmission,
thereby by–passing transmission oil. Because fluid is
by–passed, traction unit can be moved without
damaging the transmission.
Figure 20
1. By–pass valve
1
2. Before starting engine, close by–pass valve by
rotating it clockwise until it is securely seated. Do not
exceed 5 to 8 ft–lb (7-11 N
m). Do not start engine when
valve is open.
IMPORTANT: Running the machine with by–pass
valve open will cause the transmission to overheat.
OPERATING CHARACTERISTICS
Practice driving the GROUNDSMASTER 345 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, cutting unit, or other implement are the
transmission, engine speed, load on the cutting blades
or other implement components, and the importance of
the brakes.
To maintain enough power for the traction unit and
implement while operating, regulate traction pedal to
keep engine rpm high and somewhat constant. A good
rule to follow is: decrease ground speed as the load on
the implement increases, and increase ground speed
as the load decreases.
Therefore, allow traction pedal to move backward as
engine rpm decrease, and depress pedal slowly as rpm
increase. By comparison, when driving from one work
area to another—with no load and cutting unit
raised—have throttle in FAST position and depress
traction pedal slowly but fully to attain maximum ground
speed.
Another characteristic to consider is the operation of the
turning 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 turning brakes is to maintain
traction. For example: in some slope conditions, the
uphill wheel slips and loses traction. If this situation
occurs, depress uphill turn pedal gradually and
intermittently until the uphill wheel stops slipping, thus,
increasing traction on the downhill wheel.
CAUTION: This product may exceed noise levels of 85
dB(A) at the operator position. Ear protectors are
recommended, for prolonged exposure, to reduce the
potential of permanent hearing damage.
The grass deflector(s) must always be installed and in
lowest position on the side discharge cutting unit.
WARNING
This product is designed to drive objects into
the ground where they lose energy quickly in
grassy areas. However, when a person or pet
appears suddenly in or near mowing area,
STOP MOWING.
Careless operation, combined with terrain
angle, ricochets, or improperly positioned
safety guards can lead to thrown object inju-
ries. Do not resume mowing until area is
cleared.
Use extra care when operating machine on slopes.
Always have seat pivot retaining pin installed. Drive
slowly and avoid sharp turns on slopes to prevent roll
overs. The cutting deck must be lowered when going
downhill for steering control.
Before stopping the engine, disengage all controls and
move throttle to 1/4 to 1/3 open. This reduces high
engine rpm, noise, vibration and the possibility of
backfiring of the engine. Turn key to OFF to stop engine.