...
Disconnect the radar 24VDC power supply in the junction box.
Remove the cables at the radar itself; twist each connector anti-clockwise, in turn.
Remove the bolts holding the radar to the radar bracket.
Carefully lift the radar clear of the bracket.
Protect the ends of the power and data cables to prevent water getting inside them whilst disconnected from the radar.
...
| Note |
|---|
Inspect the metal dish or plastic lens on the rotating assembly for dirt and debris. Clean any debris away using a soft dry brush. |
...
2.3 Remove the
...
Drive Assembly
Carefully unclip and disconnect the multi coloured motor ribbon cable (A) from its edge connector on the main board. Note how the cable is routed so that the new motor cable can be routed in the same fashion on reassembly.
Using a 5mm hex key (do not use a ball-ended driver) and a 10mm spanner to hold the pillars from loosening, undo and remove the five bolts that secure the motor assembly. These bolts can be discarded.
Carefully lift the complete drive assembly up slightly from the chassis to provide access to the encoder connection.
Carefully un-clip and disconnect the encoder cable (B) from its edge connector on the main board. Ensure to grip on the latching pin at the top before pulling gently in a vertical motion.
You can now remove the old drive assembly from the chassis and return it to Navtech Radar (using the packaging supplied with the replacement unit).
...
Connect the other end of the Motor Cable to J4 on the Motor Board (SUB0299).
With the radar connections facing towards you, set the Motor Board into position on the 4 pillars of the Drive Assembly with the Motor Cable tucked inside the Casting and with the board speed dip switches set in the 9 o’clock position as shown below.
Secure with 4 x M4x10mm Skt Ctsk Screws (SCR0094VSB). Take care when tightening these 4 screws; they need to be nipped up but not overtightened using a 2.5mm hex bit, Torque=60±5cNm.
...
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 approximately 1 psi.
Remove the pump from the pressure test gauge and allow the gauge to settle.
After 5 minutes check the gauge. The pressure should remain at or around 1 psi. If the pressure has dropped by more than 10 to 15%, 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 hole. Use a 16mm spanner to lightly tighten to a torque of between 0.6 and 0.8Nm - do not over tighten.
Apply two new warranty stickers 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.
3. Confirming Sensor Operation
...
For further details about preparing a computer, please see 3.1.1 - Preparing a computer to link with a radar sensor.
Connecting Your Computer
...
3.1.1 Preparing a Computer to Link with a Radar Sensor
Setting the IP address in Windows 7
Click the Windows Start button.
Select Control Panel > Network and Internet > Network and Sharing Centre > Change Adapter settings:
Right click Local Area Connection and select Properties.
Highlight Internet Protocol Version (TCP/IPv4), and then click the Properties button.
Set the IP address:
For example, if the radar IP address is 192.168.0.1 then set laptop to 192.168.0.10 or higher. Click Subnet mask to automatically set to 255.255.255.0. Leave Default Gateway blank. Click OK.
Close the window.
...