Tayana -48 Owner's Manual page 98

voltage at the thruster results in a higher torque in the electric
motor.
Please note that the performance of a thruster strongly depends
on the voltage available at the electric motor. This voltage will
decrease by time because aging batteries have reduction of
capacity. By installing new batteries the effect of thruster should
be back at original level.
Make sure that only one control is used at the same time. If two
panels are operated in opposite direction at the same time the
thruster will not run at all. If they are operated in the same
direction the thruster will run in this direction.
If the thruster is not performing properly or functioning as usual,
the cause for this must be found and corrected as soon as
possible to avoid causing further damage to the equipment.
You must also turn off the main battery switch immediately in
case the problem is electric in origin.
!
How to use a bow thruster
（1） Turn main power switch for the bow thruster on. (Always
turn off the main power switch when not on board)
（2） Please take some time to exercise thruster usage in open
water to avoid damage to your boat.
（3） Turn the control panel on by pushing both "ON" buttons on
the side-power panel simultaneously.
CAUTION！
Power turns off automatically after a time and must
be turned on by pushing both on buttons.
（4） Turn the bow in the desired direction by pushing the red
button for port movement or the green button for starboard
movement. If you have a joystick control, move it in the
direction you wish the bow to move.
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