36 ST4000+ Wheel & Tiller Autopilots: Owner’s Handbook5 Installing the ST4000+EMC installation guidelinesAll Raymarine equipment and accessories are designed to the bestindustry standards for use in the recreational marine environment.Their design and manufacture conforms to the appropriateElectromagnetic Compatibility (EMC) standards, but correctinstallation is required to ensure that performance is notcompromised.Although every effort has been taken to ensure that they will performunder all conditions, it is important to understand what factors couldaffect the operation of the product.The guidelines given here describe the conditions for optimum EMCperformance, but it is recognized that it may not be possible to meetall of these conditions in all situations. To ensure the best possibleconditions for EMC performance within the constraints imposed byany location, always ensure the maximum separation possiblebetween different items of electrical equipment.For optimum EMC performance, it is recommended that whereverpossible:D5439-1Wheel drive partsClamp screw,M5 x 16 mm (x6)Wheel drivePedestal bracketSpoke clamp (x3)16 mm spokeclamp insert (x3)12 mm spokeclamp insert (x3)6 mmdrill bit3 mmallen key4 mmdrill bitPower cable4.5 m (15 ft)Bracket screw,No 10 x 3/4 in (x4)Cable clipand screw,No 6 x 1/2 inOptional: Bulkhead/box pedestal fitting kit E15017 (if required)