Note: The power and data connector with its cap on connectors are hermetically sealed on this radar model and so if fitted will covers are not required to form a gas-tight seal.
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- Insert the pressure test gauge into the hole vacated by the pressure plug and tighten it to form an airtight seal with the enclosure.
- Attach a hand or foot pump to the Schrader valve of the pressure test gauge and pressurise the enclosure to approximatly exactly 1 psi.
- Remove the pump from the pressure test gauge and allow the gauge to settle.
- After 5 10 minutes check the gauge. The pressure should remain at or around 1 psi (any heated internal components could cause the pressure to increase slightly). If the pressure has dropped by more than 10 to 15%10%, then the test has failed and your options are to either locate and correct the cause of the leak or return the enclosure to Navtech Radar for a wet pressure test. IMPORTANT: Do not put a radar unit that has failed the dry pressure test back into service as water ingress could damage the radar.
- If this dry pressure test is successful, remove the pressure test gauge and place the new breather valve , (supplied in the service kit, ) into the holethehole. Use a 16mm spanner to lightly tighten to a torque of between 0.6 and 0.8Nm - do not over tighten.
- Apply two a new warranty stickers seal to bridge the join between the radome and the chassis.
The radar unit is ready for operation and can be returned to its mounting position. - To fully complete the service procedure, you need to register the service date within the radar sensor. Please see the section 3.2 - Setting the service date and checking vital signs for details.