Maintenance.4-1; General; Scanner Unit; Radiator.4-1 - Furuno 1751 Operator's Manual

4. MAINTENANCE
General
Regular maintenance is important for good performance. Foilowing the procedures
prescribed in this chapter will help keep your unit in good working order for many years.
Always keep the equipment as free as possible from dirt, dust and water spiashes. Make sure
that all screws securing the components are properly tightened.
DANGER
ELECTRICAL SMOCK HAZARD
This equipment uses high voitage electricity which can endanger human iife.
At several places in the unit there are high voitages sufficient to kiii anyone
Corning in direct contact with them. Whiie the equipment has been designed
with consideration for the operator's safety, precautions must aiways be
exercised when reaching inside the equipment for the purpose of main¬
tenance and/or service. For this reason, oniy quaiified personnei totaiiy
famiiiar with eiectrical circuits and service manuai shouid work inside the
display unit or scanner unit.
V
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CAUTION: To prevent possible personal injury from radio frequency (RF) radiation hazards
and scanner rotation, make certain that no one or obstacle is near the scanner
before tuming on the radar.
Scanner Unit
Radiator
Wipe the radiator with a clean soft cloth. Check that there is no dirt or caked salt on the
surface. A heavy deposit of dirt or caked salt on the radiator will cause a considerable drop
in radar performance. Do not use Chemical cleaners except for alcohol. Also, check for
cracks on the surface. If any cracks are found, they shouid be temporarily repaired by using
a small amount of sealing compound or adhesive and the unit shouid then be brought to your
local dealer for permanent repairs. A check on the surface will cause permanent damage to
the intemal circuitry due to water leakage. Do not paint the radiator. Check for corroded or
loosened bolts and nuts. If heavily corroded, replace them, coating with a slight amount of
grease.
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