32
QUADRUPLE ENGINE INSTALLATION
SYSTEM STRUCTURE AND OUTLINE
1. Remote Control box
On the Quadruple Engine Installation of DBW (Drive by Wire) models, all engines can be controlled by a
twin lever remote control box.
• The port remote control lever controls both port engine and port center engine.
• The starboard remote control lever controls both starboard engine and starboard center engine.
2. BCM (Boat Control Module)
Necessary BCMs:
• One BCM for the port and port center engines
• Another BCM for the starboard and starboard center engines
So that two BCMs are required for the quadruple engine installation with single station on a boat.
Also four BCMs are required for the quadruple engine installation with dual station on a boat.
While communicating the BCM each other, the BCM controls to prevent mismatches between two engine
groups that are the port and port center engines and the starboard and starboard center engines.
• On the dual station:
Neither main BCM for the PORT engine group nor sub-BCM for the STBD engine group communicate
each other.
Similarly, neither main BCM for the STBD engine group nor sub BCM for the PORT engine group commu-
nicate each other.
About BCM
The BCM for quadruple engine installation (p/no.: 36770-98J21) which has communication function with
other BCM is strictly designed for that system.
The BCM (p/no.: 36770-98J13) is for single, dual and triple engine installations.
Use the BCM and its quantity appropriate to the system.
The system doesn’t work correctly when the incorrect BCM is used.
• When the BCM for quadruple engine installation (P/No.: 36770-98J21) is used on single, dual and triple
engine installations, system error is indicated due to no communication can be made with other BCM. The
system error indication is turning on the LED diagnostic lamp in the switch panel and beeping the buzzer.
In this condition, there are no functions of changing station and throttle only.
• In reverse, when the BCM (P/No.: 36770-98J13) for single, dual and triple engine installations is used on
quadruple engine installation, there is a possibility of mismatch to the functions of “changing station” and
“throttle only” due to no communication between two port side engine group and two starboard side
engine one.
Example of mismatches;
(1) When changing station to the 2nd one from the 1st one at the starboard and starboard center engine
group, they can be controlled by the 2nd station but can’t do to the port and port center engine group.
(2) When selecting the throttle only function at the starboard and starboard center engine group, they
can be controlled throttle only but can’t do to the port and port center engine group.
3. Sub-Battery Cable
A sub-battery cable is required for each engine groups that are two port-side engines and two starboard-
side ones.
• One sub-battery cable for the group of port and port center engines.
• Another sub-battery cable for the group of starboard and starboard center engines.
To Next Page
Loading...
