Furuno NAVpilot-700 Installation Manual page 16

1. INSTALLATION
Relationship between reversing pump flow rate and steering cylinder capacity
The table below shows a rough guideline to determine the proper reversing pump flow
rate to match with the hydraulic steering cylinder capacity. Your experience with specific
boat designs may cause you to select a pump/cylinder relationship outside of the range
of these guidelines.
Pump spec.
1.0 cu. in./sec. pump
1.6 cu. in./sec. pump
If the hydraulic cylinder capacity is much smaller than the recommended values in the ta-
ble, the rudder turning speed may be too fast for the pilot to deliver proper performance.
The rudder deadband will decrease and the NAVpilot may not apply enough voltage for
the pump motor to start because the applied "duty cycle" will be too low.
If the hydraulic cylinder capacity is much larger than the recommended values in the table,
the rudder turning speed may be too slow to allow the NAVpilot to control the boat effec-
tively.
TM
Fantum Feedback
TM
Fantum Feedback
For Fantum Feedback
• The ship motor is outboard.
• The length of the ship is between 20 ft and 40 ft.
• The [DRIVE UNIT SELECTION] should be set to [REVERSIBLE 24V(or 12V)].
The functions and modes shown below are not available.
• Safe helm mode
• Power assist mode
• FU dodge mode
TM
• FishHunter mode
• Wind mode
• Remote controllers
1-8
Hardover to Hardover is 70 °
5.85 to 17.5 cu. in.
9.36 to 28.0 cu. in.
means the NAVpilot is controlled without the rudder reference unit.
TM
, keep the following in mind.
Hardover to Hardover is 90 °
7.5 to 22.5 cu. in.
12.0 to 36.0 cu. in.