4.4 Post-installation checkCheck the following points after installing the drive and connectingthe course computer:Check1 Ensure that the hydraulic ram’s mounting foot is well-secured to asubstantial part of the vessel.2 Ensure that the hydraulic ram is correctly aligned:• Mounting foot correctly orientated.• Drive mounted at right angles to tiller arm in a mid-stroke positionwhen rudder is in a midship position.• Push rod accurately aligned with tiller arm plane of rotation(deviation less than 10 degrees for Type 2 drives, or 5 degreesfor Type 3 drives).3 Ensure that the hydraulic ram rod end is:• Securely attached to the tiller arm or rudder quadrant.• Attached at the recommended tiller arm radius for the vessel.4 Ensure that the motor and clutch cables are correctly routed andsecurely connected to the course computer.5 Ensure that all hydraulic pipes are securely connected with no leaks.6 Ensure that the reservoir is filled with hydraulic fluid to the correct level.7 Ensure that the transit screw and seal have been removed from thereservoir cap. Ensure that the cap is fitted securely to the reservoir.8 Ensure that the reservoir tap is in the “ON” position.Check9 Ensure that you’ve completed the hand-steering check (see Steeringcheck).10 Ensure the course computer’s clutch switch is in the correct position(refer to 4.3 Course computer connection).Once you’ve completed the checks listed above you should performan autopilot steering check, to ensure that the autopilot control head,course computer and drive unit are connected and communicatingcorrectly. Refer to the handbook that accompanies your coursecomputer.34 Hydraulic Linear Drive Installation instructions