31
360 C
OASTAL
Chapter 2:
HELM CONTROL SYSTEMS
2.1
General
The helm controls consist of three primary control systems:
the engine
throttle/shift
controls, the steering system, and
the trim tab control switches. These systems provide the
operator with the ability to control the direction and attitude
of the boat from the helm station.
Each manufacturer of the control components provides an
owner’s manual with its product. It is important that you
read the manuals and become familiar with the proper care
and operation of the control systems.
2.2
Engine Throttle and Shift Controls
The shift and throttle controls on your boat may vary de-
pending on the engines used. Diesel powered boats are
equipped with electronic controls. The following control
description is typical of most inboard controls. Refer to the
engine or control manuals for specific information on the
controls installed on your boat.
ALWAYS RETURN THE ENGINE THROTTLE LEVERS
TO THE EXTREME LOW SPEED POSITION BEFORE
SHIFTING. NEVER SHIFT THE UNIT WHILE THE
ENGINE SPEED IS ABOVE 1000 RPM.
Electronic Engine Controls
Diesel powered boats are equipped with electronic engine
controls. The shift and throttle control features may vary
depending on the engines used. The following control de-
scription is typical of most engine and control installations.
Refer to the engine or control manuals for specific informa-
tion on the controls installed on your boat.
The helm is designed for a binnacle style control with a single
lever for each engine. If your boat is equipped with the op-
tional tower, the upper station will also be equipped with a
single binnacle style control. The electronic control system
consists of three major components: the electronic control
head with integrated or separate keypad, the control proces-
sors and applicable harnesses. The controls are completely
electronic and there are no cables.
Movement of the helm control arm sends a signal to the con-
trol processor, located in the engine compartment, that oper-
ates the engine throttle
and transmission control valve.
The
controls have a single lever for each engine that operates as
a gearshift and a throttle. General operation will include a
position for neutral (straight up and down or slightly aft of
vertical), a forward position (the 1st detent forward of neu-
tral), and a reverse position (the 1st detent aft of neutral).
Advancing the control lever beyond the shift range advances
the throttle in forward or reverse. Each control is equipped
with a means of permitting the engine to be operated at a
higher than idle RPM while in neutral for cold starting and
warm-up purposes. The control levers are equipped with
adjustable control head detent and friction settings.
The control head key pad has inte-
grated switches and indicator lights
which allow the operator to control
all aspects of the boat’s propulsion
system. The most common features
activated or monitored by the key-
pad are:
•
Gear lockout, which allows the engine RPM to be ad-
vanced in neutral safely.
•
Station transfer that allows the operator to transfer con-
trol from one station to another with the push of a but-
ton on boats with an optional tower and two helm sta-
tions. Each station must be selected before the controls
will operate from that station.
Volvo Electronic Control Head
Typical Volvo Key Pad
Summary of Contents for 360 Coastal
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Page 125: ...125 360 COASTAL Appendix A SCHEMATICS 120 Volt AC Breakers...
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Page 130: ...130 360 COASTAL Aft Deck Panel...
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