NorthStar Navigation 10 kW ユーザーズマニュアル

 

 

Before doing any maintenance work, always ensure that the radar system is turned OFF at the main power source.  

If a rectifier unit is used, turn OFF the power supply to this too.  Remember that high voltages from the rectifier 

unit are always present, even if the radar is not operating, and these can cause severe injury or death.  

 

 

Proper maintenance of the radar system will keep it in good condition and minimize breakdowns.  
Periodically: 

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remove any dust, dirt, or sea salt from the external surfaces with a dry, lint-free cloth. 

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check that the radar components are held securely in place and that the screws, nuts and 
bolts have not worked loose. Tighten and re-apply marine paint where necessary to prevent 
corrosion. 

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check that all the radar cabling is not frayed, bent, or cut and that the radar system cable 
connections are secure, tight and waterproof. 

 

 

Before working on the scanner, remove your watch and any magnetic cards, because the modulator circuit in the 

magnetron emits a strong magnetic field that can badly affect such items. 

 

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Remove any dust, dirt, or sea salt from the external surfaces, particularly the front side of the 
scanner, with a lint-free cloth dampened with alcohol or water.  Do NOT use petrol, 
gasoline, benzene, thinner, or similar solvent to dampen the cloth as these cause 
deterioration of the external surfaces. 

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At least once every six months, apply grease (Mobilux 2 or equivalent) evenly to the 
lubricating gears, with a brush or knife. More frequent application is desirable to maximize 
the life of the lubricating gears. 

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The drive motor brush has an expected life of 2,000 hours.  Replace it when half of the 
overall length has worn away.  The drive motor carbon brush can be removed easily by 
unclipping the two caps located on both sides of the bottom part of the drive motor. 

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Clean any carbon powder off the drive motor commuter with a dry brush or, if this will not 
remove it, use sand paper #250 to #400. 

 

Re-set the heading calibration annually and after any major structural changes to the vessel. 

 

Northstar 10 kW Radar Installation Manual 

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