General Information; Traction Unit Operator's Manual; Yanmar Engine Service And Troubleshooting Manuals; Engine Electronic Control Unit (Ecu) - Toro Groundsmaster 4300-D Service Manual

General Information

Traction Unit Operator's Manual

Yanmar Engine Service and Troubleshooting Manuals

Engine Electronic Control Unit (ECU)

Groundsmaster ® 4300-D
16226SL Rev C
This chapter gives information about specifications and repair of the Yanmar
diesel engine used in the Groundsmaster 4300-D 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
3TNV86CT (used on Groundsmaster 4300-D Model 30864), a Tier 4F compliant
engine. The Yanmar Engine Service Manual and Troubleshooting Manual are
available for these engines. Ensure that the correct engine manuals are used
when servicing the engine on your machine.
g188094
1. Diesel-particulate filter (DPF)
The Yanmar engine used in the Groundsmaster 4300-D machine uses an
electronic control unit (ECU) for engine management and to communicate with
operator InfoCenter on the machine. The engine ECU is located at the right side
of the machine near the diesel-particulate filter (DPF)
Figure 7
2. Engine ECU
Page 3–3
(Figure 7).
Diesel Engine: General Information