General Information; Traction Unit Operator's Manual; Yanmar Engine Service And Troubleshooting Manuals; Engine Electronic Control Unit (Ecu) - Toro Groundsmaster 360 Service Manual

General Information

Traction Unit Operator's Manual

Yanmar Engine Service and Troubleshooting Manuals

Engine Electronic Control Unit (ECU)

Groundsmaster 360
16225SL Rev C
This chapter gives information about specifications and repair of the Yanmar
diesel engine used in the Groundsmaster 360 machine. The general
maintenance procedures are described in the Operator's Manual. Detailed
information on engine troubleshooting, testing, disassembly, and assembly is
identified in the Yanmar Engine Service Manual and Troubleshooting Manual.
Additionally, some engine repair procedures are described in this manual. The
described adjustments and repairs require tools which are commonly available in
many service shops. Special tools are described in the Yanmar Engine Service
Manual. The use of some specialized test equipment is explained. However,
the cost of the test equipment and the specialized nature of some repairs may
dictate that the work be done at an engine repair facility.
Service and repair parts for the Yanmar engines are supplied through your
Authorized Toro Distributor. If the parts list is not available, provide your
distributor with the Toro Model and Serial Number of your machine.
The Operator's Manual provides information regarding the operation, general
maintenance, and maintenance intervals for your machine. Refer to the
Operator's Manual for additional information when servicing the machine.
The engine that powers your Groundsmaster machine is a Yanmar Model
3TNV88C-DTR3 (used on Groundsmaster 360 Models 31200 and 31202), a Tier
4F compliant engine. The Yanmar Engine Service and Troubleshooting Manual
are available for these engines. Ensure that the correct engine manuals are
used when servicing the engine on your machine.
The Yanmar engine used in the Groundsmaster 360 machine uses an electronic
control unit (ECU) for engine management and to communicate with operator
InfoCenter on the machine. The engine ECU is located inside the power center
assembly behind the operator seat.
Do not plug or unplug the engine ECU for 30 seconds after the
machine key switch is turned off. The engine ECU may remain
energized even though the key switch is in the O
If you must disconnect the engine ECU for any reason, ensure that the key switch
is in the O position with the key removed before disconnecting the engine ECU.
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Also, to prevent possible engine ECU damage when welding on the machine,
disconnect and remove the engine ECU from the machine before welding.
The engine electrical components (e.g., engine ECU, fuel injectors, EGR, and
exhaust DPF) are identified and matched in the engine ECU program. If the
engine electrical components are replaced, the Yanmar electronic tool must
be used to update the engine ECU program which will ensure correct engine
operation.
If the engine ECU identifies that an engine problem exists, the engine speed
may be reduced or the engine may shut off. The Yanmar troubleshooting manual
and electronic diagnosis tool should be used to provide assistance in identifying
IMPORTANT
Page 3–3
position.
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Diesel Engine: General Information