Securing the pedestal to the mounting platform

MountingPedestalPedestalMounting

Before securing the pedestal to the mounting platform, ensure that you have:

  • Selected a suitable location, based on the location requirements found in this document. For further information, refer to: Location requirements

  • Identified the cable connections and route that the cables will take.

  • Prepared suitable lifting equipment for fixing the pedestal to the mounting platform. The Radar pedestal weighs 24.2 kg (53.35 lb) without an antenna fitted.

Important

For safety reasons it is recommended that the unit is not lifted by one person. The unit is supplied with a lifting sling (maximum Safe Working Load (SWL) = 1000 kg). Suitable lifting equipment could include a crane, hoist, or an appropriate rigid overhead structure. Do NOT attach the antenna to the pedestal prior to lifting.

Note

Do NOT connect any cables until the following steps have been completed.

  1. Check the selected location. A clear, flat platform is required for mounting the pedestal unit. For more information, refer to the following section: Radar scanner location requirements
  2. Fix the supplied mounting template to the platform, using masking or self-adhesive tape.
  3. Using a 3 mm (1/8”) drill bit, drill the 4 holes, as indicated on the mounting template.

    Check that the holes have been drilled in the correct position.

  4. Using an 11 mm (7/16”) drill bit, drill through the 4 holes.
  5. Remove the mounting template.
  6. The pedestal unit has a cap fitted over the open array mounting shaft to protect the protruding coaxial pin. This cap must be left in place until the open array antenna is fitted to the pedestal.
  7. Grease the 4 metal studs with the supplied Denso paste.
  8. Insert the studs no more than 18 mm (0.71 in) into the holes in the pedestal base, and hand-tighten. 4 spare nuts are provided which may be used as temporary locking nuts to aid insertion of the studs into the pedestal.

    If the supplied studs are not long enough for the mounting surface thickness, use M10 stainless steel, grade A4-70 studding of a suitable length.

  9. Using the supplied lifting sling, looped beneath the antenna rotor, raise the pedestal over the mounting surface. Carefully lower into position, taking care that the studs pass through the holes without damaging the threads. Ensure that the front of the pedestal is pointing towards the bow of the vessel.
    Important

    Do NOT attach the antenna to the pedestal prior to lifting.

  10. Grease the studs with the supplied Denso paste.
  11. Referring to the following illustration, use the 4 nuts and associated washers to secure the pedestal to the platform. Tighten each nut to 30 N·m (22.1 lbf·ft) torque.
  12. Ensure all 4 sets of nuts and washers are used to secure the pedestal to the mounting platform. There should be no more than 6 mm (0.24 in) of excess stud below the nut. Cut-off any excess stud.
  13. Retain the 4 spare nuts (which may have been used as a temporary measure during step 8).