Question about Furuno GPS
Posted by Anonymous on
This is a belt driven antenna. That would be the first thing to check, to be sure it’s not slipping. This should be easy to see if the motor is spinning but not the antenna that would be the problem.
I don’t recall if this model uses a “toothed belt” or not, but if it does check the entire belt for missing teeth, replace as necessary.
The next thing I would check would be the flywheel under the antenna. Check it for any signs of corrosion around the bearing. Remove the drive belt and slowly rotate the antenna see if you can detect any friction anywhere is you rotate the antenna. You could try a spray lubricant (like WD-40) but be careful of overspray, keep it off any electronics!
The next thing I would check would be corrosion on any power connections (all the way back to the main power and the fuse. Corrosion on any of the connections will lessen the current flow and make the drive motor weaker. Sometimes corrosion and salt can be cleaned off with a “contact cleaner” (or alcohol in a pinch) but if there is heavy damage you might have to replace the connectors completely. Be sure to remove all power before disconnection and connectors and be sure that they are dry before reapplying power.
Lastly (and most expensively) you might need a new motor.
If you operate in saltwater, corrosion on the connections would be my guess for the cause but I still would check these in order, from easy fix, to the expensive fix.
When you replace the dome be sure the O-ring gasket is in good condition and well lubricated with silicon grease before you close the unit. Replace the O-ring if you see (or feel) and nicks or compressions in the rubber. Take care that there are no twists in the O-ring when you reinstall it.
Posted on Mar 30, 2008
With a voltmeter, verify that you are getting 12V at the plug end of the power cable. If so, check the fuses (there should be one or two fuse holders on the back). If all of that fails you will need to send it in to Furuno for repair.
Posted on Aug 23, 2009
yes the cable should be replaced if you are lucky, the unit is still OK (display) Try the new cable, draped across the boat before rigging. If fault exists with new cable, replace system, or find a new display on ebay
Posted on Jan 16, 2010
SOURCE: RE: life of the radar magnetron
i have a furuno 1700 radar ,when i switch it on it goes to stand by ,when i press the standby button you can see it scanning but no land appears cheers alan
Posted on May 03, 2011
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