ComNav Commander P2 - Linear Rudder Follower Unit; Figure 30 - Typical Arrangement of Linear RFU on an Outboards Steering Cylinder

ComNav Commander P2 & P2VS Installation & Operation Installation
Document PN 29010074 V4.1 - 56 -
Linear Rudder Follower Unit
Installations on boats with outboard motors will typically use a Linear RFU.
1) If the Linear Rudder Follower is to be mounted with the sliding rod facing towards the port
side of the boat, turn the steering wheel so the motor is hard over to starboard.
If the Linear RFU is to be mounted with the sliding rod facing towards the starboard side
of the boat, turn the steering wheel so the motor is hard over to port.
2) Carefully measure the travel of the outboard motor’s steering cylinder. It must not
exceed 25.4 cm (10”). If it is more than that, corrosion resistant spacers will need to be
fabricated to go over the rod of the hydraulic cylinder to limit its travel (see Figure 30).
Caution! If the travel of the steering cylinder is more than 25.4 cm (10”), the Linear
RFU will be over-extended, causing it to be damaged or destroyed.
 There is no warranty on the Linear RFU for damage due to
over-extension.
15.2 INCHES / 386 MM
OUTBOARD FEEDBACK
MATERIAL - STAINLESS STEEL & PLASTIC
30 FOOT (9.1 METER)
CABLE TO AUTOPILOT
SLIDING ROD
OUTBOARD
MOTOR
STEERING CYLINDER
STAINLESS STEEL
BAND CLAMP
TWO PIECE
CLAMP
OUTBOARD FEEDBACK
(SEE DIMENSIONS BELOW)
STAINLESS STEEL
BRACKET
ADD SPACERS IF NECESSARY TO LIMIT
TRAVEL TO 10 INCHES / 254 MM (MAX.)
(0 - 10.5 INCHES / 0 - 267 MM)
5 INCHES / 127MM
Figure 30 – Typical Arrangement of Linear RFU on an Outboard’s Steering Cylinder