Instrument Maintenance - Four winns 248 Vista Owner's Manual

NOTICE
You should not rely on these displays as your
primary source of navigation. Rather, you should
use the chart plotter as a backup to official gov-
ernment charts and traditional methods of navi-
gation.
Another optional navigation package includes radar along
with a GPS/Plotter. The radar detects objects/targets
and displays them for the operator to see. This option
is available on certain Vista™ models only and if so
equipped refer to the manufacturer's literature included in
the owner's packet for operation instructions.
3. Depth Sounder
A depth sounder may be included with the navigation
package option on certain Vista™ models. Please con-
sult the manufacturer's literature included in the owner's
packet for operation and care of this particular depth
sounder.
4. Compass
A compass is available on many Four Winns® models.
See Figure E13. The compass can provide directional
information when operating offshore, in unfamiliar waters,
or in adverse weather conditions.
Figure E13: Compass
Vista™ Owner's Manual
™
After all personal equipment is installed, including all elec-
tronics (VHF radio, GPS, chart plotter, etc.), the com-
pass must be properly calibrated. DO NOT rely on the
compass readings until initial adjustment (compensation)
has been performed. The boat has a factory installed
compass, the manufacturer's instructions are provided in
the owner's packet. Most areas have local companies
that specialize in compass adjustment. If unsure of the
proper compensation techniques, consider having the ad-
justment done professionally to insure accuracy and confi-
dence in the compass.
NOTICE
During use, keep all extraneous metal objects
away from the compass. The close proximity of
metal objects (e.g., beverage cans) can cause
compass deviation.
Q. Instrument Maintenance
Electrical protection for instruments and ignition circuitry
is provided by a circuit breaker on the ignition panel. Pe-
riodically, spray the ignition switches with a contact clean-
er. The ignition switches and all instruments, controls,
etc. should be protected from the weather when not in
use. Four Winns offers appropriate weather covers for
each model. Excessive exposure can lead to gauge and
ignition switch difficulties.
DO NOT use a product such as WD-40 as a
contact cleaner. Be sure to read the label be-
fore using any product.
Electronic gauges are affected by static electricity that
builds-up on the glass face. Periodic washing of the gauge
face with warm water and mild liquid detergent will help
eliminate the static electricity problem and improve gauge
accuracy.
Section E
Page 14