Raymarine SportPilot User Manual page 38

Chapter 4: Installing the SportPilot 33
UP
Steering Connecting Lock
Socket
arm rod nut
Single drive system with vertical steering arm
Note: Ideally, dimension A should be 140 mm (5.5 in). However, if
necessary it can fall anywhere within the given minimum and
maximum limits. This will not affect autopilot performance, but will
slightly alter the scaling of the data sent to the SportPilot.
Preventing steering pin movement
Note: This section does not apply to Volvo steering systems.
If the Raymarine steering pin has excessive vertical free-play after
replacing the original steering pin, use the plastic sleeve to reduce or
remove any movement (as shown below).
Spacer Spacer
Clearance
Note: The plastic spacer must be used to lift the pin so it does not foul
on the steering system. If necessary, you can shorten the sleeve.