Section 3 - On the Water
90-866938081 MAY 2009 Page 69
To maintain steering and course heading, closely observe the amount of engine speed
used with each throttle handle. Trim tabs can be adjusted to assist in steering the vessel.
An operator should regularly practice steering the vessel in this manner to be familiar with
using their vessel's throttles and trim tabs for steering.
The joystick can be used as an alternative method of steering when operating the vessel
in close vicinity of objects, docks, and other vessels. Engine RPM is limited with joystick
operation.
Port Engine Only Operation
The force feedback feature of the steering wheel is only available when the starboard key
switch is in the on position. If the starboard key switch is off or there has been damage to
the starboard electrical system, the steering wheel will be monitored by the port control
system.
However, if only the port side is operational, or only the port key switch is in the on
position, the steering wheel will not have end stops provided by the force feedback
system. In this case, the drive will always turn in the direction that the steering wheel is
being rotated until the mechanical limits of the drive are reached. If there is damage to the
port electrical system, the steering wheel will operate normally with complete force
feedback and end stops.
The boat can operate as a single‑engine vessel. Note that joystick and station keeping are
not available in this condition. However, Zeus features redundant AutoPilot systems, so
Auto Heading and Track Waypoint mode are still available during single‑engine
operation.
Gear Engagement—Emergency Procedure
If a transmission or electrical system is damaged or has experienced a condition resulting
in a fault such that a transmission does not respond to the helm controls, it is possible to
manually engage a gear. In an emergency you can manually place a transmission into gear
by using a suitable wrench to actuate the appropriate gear shifting solenoid.
Note the following:
• It is better to use one drive that works properly than locking and operating the drive that
is not functioning properly. This procedure is for when both drives are not responding
to helm control.
• Auto Heading and Track Waypoint will work when emergency gear engagement is in
use.
• Moving the ERC handle into reverse stops the engine.
!
CAUTION
Locking the transmission in gear using the emergency procedure renders the helm’s
shifting control inoperable. Drive carefully with the gear lock engaged. To shift out of
gear, turn the key switch to "OFF."
1. Determine the transmission that is not engaging a gear.
2. Stop the engines and remove the key from the key switch.
!
WARNING
Engine components and fluids are hot and can cause serious injury or death. Allow the
engine to cool before removing any components or opening any fluid hoses.
3. Remove the drive cover of the affected transmission. Refer to Section 5—The Drive
Cover.
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