Toro Groundsmaster 7210, Service Manual

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General Information
This chapter gives information about specifications and repair of the Yanmar
diesel engine used in the Groundsmaster 7210 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 Service Manual and Yanmar 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 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.
Traction Unit Operator’s Manual
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.
Yanmar Service and Troubleshooting Manuals
The engine that powers your Groundsmaster machine is a Yanmar Model
3TNV88C (used on Groundsmaster 7210 Models 30616, 30617, 30618, 30619,
30633, and 30695), a Tier 4F compliant engine. The Yanmar Service Manual and
Yanmar Troubleshooting Manual are available for these engines. Ensure that the
correct engine manuals are used when servicing the engine on your machine.
Engine Electronic Control Unit (ECU)
The Yanmar engine used in the Groundsmaster 7210 machine uses an electronic
control unit (ECU) for engine management and to communicate with operator
InfoCenter on the machine. The engine ECU is located on the left side of the
machine frame near the engine.
IMPORTANT
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
FF
position.
If you must disconnect the engine ECU for any reason, ensure that the key switch
is in the O
FF
position with the key removed before disconnecting the engine
ECU. Also, to prevent possible ECU damage when welding on the machine,
disconnect and remove the engine ECU from the machine before welding.
The engine electrical components (e.g., ECU, fuel injectors, EGR, and exhaust
DPF) are identified and matched in the engine ECU program. If engine electrical
components are replaced, the Yanmar electronic tool must be used to update the
ECU program which will ensure correct engine operation.
Groundsmaster 7210 Page 3–3 Diesel Engine: General Information
16222SL Rev C