Yanmar Engine - Toro Groundsmaster 5900 Series Service Manual

Yanmar Engine

Groundsmaster ® 5900 & 5910
16227SL Rev B
g287514
1. Engine
The engine used on your Groundsmaster is a Yanmar TNV Series, turbocharged,
diesel engine that complies with EPA Tier 4 emission regulations. Engine
features include an electronic control unit (ECU) that controls a common rail fuel
injection system with direct injection, water−cooled exhaust gas recirculation
(EGR), an electronic governor, an exhaust system diesel oxidation catalyst
(DOC) and an exhaust diesel particulate filter (DPF) with active regeneration.
Glow plugs are used to assist starting the engine. Numerous engine sensors
are used to allow the engine ECU to monitor and control engine operation for
optimum engine performance.
During the operation of the engine, if conditions warrant, the engine ECU may
generate an engine fault. Use the machine InfoCenter to identify the engine
fault; refer to the Yanmar Troubleshooting
Toro Distributor for assistance.
1
Figure 14
2. Engine ECU
Manual, or contact an Authorized
Page 4–5 Yanmar Diesel Engine: General Information
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