NorthStar Navigation 491 Ordering replacement parts Servicing, Hearing from you

Page 29

 

 

SECTION FOUR — Troubleshooting and servicing the

Hearing from you

Your feedback is important and helps Northstar ensure that this manual

 

is a valuable resource for all marine technicians. Send your questions,

 

comments, or suggestions about this manual to:

 

docs@northstarcmc.com

Ordering replacement parts

Servicing the 491

To order spare parts or replacement/missing parts, call the Sales Depart- ment at 978/897-0770.

Repair of the 491 is performed only at the factory. Service includes a com- plete hardware and software check-out.

NOTE:

Field repairs are not authorized and will void the

 

warranty!

 

For transducer service, including parts and repairs,

 

please contact the transducer manufacturer.

 

 

The 491 and any accessories returned for warranty repair that are deter- mined to be without fault are subject to a handling charge.

491 INSTALLATION MANUAL Revision A

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Contents Echo Sounder Installation Manual Page Table of Contents Page Who should read this manual Scope of this manual Section ONE IntroductionWelcome to the Northstar Installation considerations Safety considerations Section TWO Installing the transducerAirmar transducer elements Northstar-recommended transducersDo not mount the transducer Choosing a mounting locationHull thickness limits LWL Installing the transducerLWL Using anti-fouling paintDetail Cleaning a transducerPage Section Three Installing Section Three Installing Installation Manual Revision a Echo sounder system components with the Northstar 961/962 System components190 dia 360 dia MountingConnecting the 491 to the 961/962 WiringInterface cable connection from 961/962 to Cable connection between the 961/962Connecting the 491 to the 957/958 491-to-transducer connector pin wiring Connecting the 491 to a transducerFor the 961/962 Initial checkoutTurning the 491 on Setting up the echo sounder Installation test checklistTurning the 491 off For the 957/958/6000iStatus LED Section Four Troubleshooting and servicing961/962 echo sounder system troubleshooting 957/958/6000i echo sounder system troubleshooting Contacting Northstar Getting technical supportHearing from you Ordering replacement parts ServicingReturning a 491 for service 491 technical specifications Appendix a Technical specificationsON/OFF Cavitation Deadrise Echo sounder Fairing block Transducer GlossaryGlossary Installation Manual Revision a Index 491 Index Index Installation Manual Revision a