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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.
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
table, the rudder turning speed maybe too fast for the pilot to deliver proper performance.
The rudder deadband will decrease and the Navpilot System 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 System to control
the boat effectively.
1.4
Remote Controllers (option)
Two remote controllers may be connected to the processor unit FAP-5002. To connect three
or four remote controllers, the optional distributor FAP-6800 is required.
Note 1: The distributor FAP-6800 enables connection of three NFU (Non-Follow Up) type
remote controllers (button and lever) to the processor unit.
Note 2: Keep the remote controller out of water splash.
Dial type remote controller FAP-5551/5552
Hardover to Hardover is 70º.
5.85 to 17.5 cu. in.
9.36 to 28.0 cu. in.
Hooking up FAP-5551/5552
1. INSTALLATION OF UNITS
Hardover to Hardover is 90º.
7.5 to 22.5 cu. in.
12.0 to 36.0 cu. in.
1-5
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