Raymarine 150/400 - Manual (Page 51)

Maintenance 43
Maintenance
All Raymarine products are designed to provide many years of
trouble-free operation. We also put them through comprehensive
testing and quality assurance procedures before shipping.
Regular checks
On a regular basis:
• check that all connections and mountings are secure and
undamaged
• check the course computer for any signs of physical damage or
water damage
Note: Do not use chemical or abrasive materials to clean the course
computer. If the case is dirty, wipe it with a clean, damp cloth.
Fault-finding
Course computer fuses
Symptoms of a blown course computer fuse are:
• if either the power fuse or SeaTalk fuse blows, the control unit
display will go blank
• if the clutch fuse blows and your drive has a clutch, the control
unit will show a DRIVE STOPPED alarm message
If your control unit shows either of these symptoms, check the
relevant fuse(s). If the fuse has blown, replace it with a fuse of the
same current rating (see page 14).
Servicing
CAUTION:
The course computer does NOT contain user-serviceable parts.
If you remove the main cover you will invalidate the warranty.
Í For more information about diagnosing faults on your autopilot system,
refer to the Fault Finding section of the control unit owner’s handbook.
81173_3.book Page 43 Thursday, June 7, 2001 11:51 AM