Toro Groundsmaster 3500 30807, Service Manual

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Groundsmaster 3500−G
Page 4 − 4
Kubota Gasoline Engine
Introduction
This Chapter gives information about specifications,
maintenance, troubleshooting, testing, and repair of the
gasoline engine used in the Groundsmaster 3500−G
(Model 30809).
Most repairs and adjustments require tools which are
commonly available in many service shops. The use of
some specialized test equipment is explained in the en-
gine service manual included at the end of this chapter.
However, the cost of the test equipment and the special-
ized nature of some repairs may dictate that the work be
done at an engine repair facility.
Service and repair parts for Kubota gasoline engines
are supplied through your local Toro Distributor. If a
parts list is not available, be sure to provide your distribu-
tor with the Toro model and serial number.
Traction Unit Operator’s Manuals
The Traction Unit Operator’s Manual provides informa-
tion regarding the operation, general maintenance and
maintenance intervals for your Groundsmaster
3500−G. Refer to this publication for additional informa-
tion when servicing the machine.
Kubota Workshop and Diagnostics Manuals
The engine that powers your Groundsmaster 3500−G is
a Kubota model WG972−G−E3F. Both the Kubota
Workshop Manual and Kubota Diagnostics Manual are
available for this engine. Make sure that the correct en-
gine manuals are used when servicing the engine.
Kubota Gasoline Engine
The engine used in your Groundsmaster 3500−G is a
Kubota WG972 Series gasoline engine. Engine fea-
tures include an electronic control unit (ECU) that con-
trols a common rail fuel injection system with port
injection, electronic throttle valve (ETV), an electronic
governor and a catalytic muffler exhaust system with an
oxygen sensor. The ECU receives information from the
traction unit Standard Control Module (SCM) as well as
numerous engine sensors. The information provided al-
lows the engine ECU to monitor and control engine op-
eration for optimum engine performance.
Figure 1