background image

• Secure the included mounting template to the surface at 

the chosen mounting location, along the bow-stern axis as 

indicated on the template.

2

Determine which of the two mounting-hole patterns indicated 

on the template are appropriate for the mounting surface and 

drill the four mounting holes using a 15 mm (19/32 in.) drill 

bit.

3

Remove the hatch on the front of the pedestal by loosening 

the screw and lifting it off of the hinges.

4

Apply the included Petrolatum Primer to one half of the 

threads of the four threaded rods.

5

Insert the ends of the threaded rods coated in Petrolatum 

Primer into the pedestal, matching the hole pattern chosen in 

step 2.

6

Tighten the threaded rods 

À

 using a 5 mm hex wrench 

Á

.

To avoid damaging the pedestal, you should stop tightening 

the threaded rods when they no longer turn easily.

7

Install the isolators 

Â

 over the threaded rods, and push them 

securely onto the four raised locations on the bottom of the 

pedestal 

Ã

.

Mounting the Radar

Before you can mount the radar, you must first select a 

mounting location, and prepare the mounting surface and the 

radar (

Preparing the Surface and the Radar for Mounting

).

1

Take note of which end of the pedestal you plan to mount 

facing the bow along the bow-stern axis.
If the hatch side is facing the bow, you must adjust the front-

of-boat offset on the chartplotter to receive an accurate radar 

reading (

Front-of-Boat Offset

).

2

Position the included strap over the antenna, as close to the 

pedestal base as possible 

À

.

3

Hoist the radar into position, and carefully lower it onto the 

mounting surface, feeding the threaded rods through the 

holes.

4

From under the mounting surface, place the shoulder 

washers 

Á

 on the threaded rods and feed them into the 

mounting surface so they fit securely.

5

Place the flat washers 

Â

, lock washers 

Ã

, and hex nuts 

Ä 

on the threaded rods.

6

Torque the hex nuts to 1.5 kgf-m (130 lbf-in. [11 lbf-ft.]) to 

securely fasten the radar to the surface without damaging the 

radar or the mounting hardware.

2

Summary of Contents for GMR 620 xHD2 Series

Page 1: ...Drill and 15 0 mm 19 32 in drill bit 17 mm 21 32 in wrench and torque wrench A length of 3 31 mm 12 AWG copper wire to ground the radar housing and voltage converter if applicable Marine sealant Mount...

Page 2: ...o the four raised locations on the bottom of the pedestal Mounting the Radar Before you can mount the radar you must first select a mounting location and prepare the mounting surface and the radar Pre...

Page 3: ...er Cable Extensions Incorrectly extended runs of cable may cause the radar to malfunction due to insufficient power transmission Connecting to Power Through the Voltage Converter WARNING When connecti...

Page 4: ...ing is necessary If your radar was packaged with a voltage converter proceed to step 6 6 Route a different 3 31 mm 12 AWG copper wire to water ground location and to the voltage converter 7 Loosen a s...

Page 5: ...of Boat Offset The front of boat offset compensates for the physical location of the radar scanner on a boat if the radar scanner does not align with the bow stern axis Measuring the Potential Front o...

Page 6: ...m 49 ft 3 in Network cable length 15 m 49 ft 3 in Antenna rotation speed 24 rpm and 48 rpm Max wind load 80 kn Temperature range From 15 to 70 C 5 to 158 F Humidity 95 at 35 C 95 F Water resistance I...

Page 7: ...he inline fuse may have blown Check the fuse and replace it if necessary The wire gauge used to extend the power cable may be too small for the length of the extension Check the table provided in the...

Page 8: ...r countries GMR is a trademark of Garmin Ltd or its subsidiaries These trademarks may not be used without the express permission of Garmin Furuno is a registered trademark of Furuno Electric Co Ltd Ra...

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