PRODUCT OVERVIEW
16
6LT Series Operation Manual
VESSEL CONTROL SYSTEM (VC20)
The 6LT series engine is a fully electronically controlled engine, using Yanmar’s original “Vessel Control
System (VC20)”.
The control equipment consists of the Switch Panel, the Display, the Drive & Helm ECU, the Control Head
and the Backup Panel, which are connected by the cable harness to the engine and marine gear or stern
drive for remote control operation.
NOTE: The Yanmar Vessel Control System (VC20) was designed to operate the 6LT engine and drive
system. There are many control functions and diagnostic functions that are integrated together to insure
safe operation. If this system is not utilized in specific accordance with the instructions in this manual or the
system is modified in any way, Yanmar will not be responsible for any warranty failures in the operation of
the system or the vessel utilizing the system. Yanmar has designed the Vessel Control System (VC20) in
conjunction with the 6LT engine. The system has many functions that must be configured and calibrations
must be made before the vessel can be operated. Please arrange to have a Yanmar trained technician
inspect the vessel prior to the vessels operation.
Figure 7
To engine
Marine gear or
Shift Actuator
To engine
1
Marine gear or
Shift Actuator
To engine
To engine
No. Description
1 Shift and Throttle Control Head
2 Emergency Stop Switch (Option)
3 Switch Panel (to start and stop the engine)
4 Display
5Helm ECU
6Drive ECU
7 Backup Panel
8 Cable Harness Set
9 Adapter, Terminal
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