Furuno FR-8122, FR-8252, FR-8062 manual Preventive Maintenance, Interval Check point Remedy

6. MAINTENANCE & TROUBLESHOOTING

6.1Preventive Maintenance

Regular maintenance is important for optimum performance. A maintenance program should be established and should at least include the items shown in the table below.

Maintenance

Interval	Item	Check point	Remedy
When	LCD	The LCD will, in time,	Wipe the LCD carefully to prevent
necessary		accumulate a coating of	scratching, using tissue paper and an
		dust which tends to dim	LCD cleaner. To remove dirt or salt
		the picture.	deposits, use an LCD cleaner, wiping
			slowly with tissue paper so as to dissolve
			the dirt or salt. Change paper frequently
			so the salt or dirt will not scratch the
			LCD. Do not use solvents such as
			thinner, acetone or benzene for
			cleaning. Also, do not use degreaser or
			antifog solution, as they can strip the
			coating from the LCD.
3 to 6	Ground terminal	Check for tight	Tighten or replace as necessary.
months	on display unit	connection and rust.
	Display unit	Check for tight	Tighten if loosened.
	connectors	connection.
	Exposed nuts	Check for corroded or	Clean and repaint as necessary. Sealing
	and bolts on	loosened bolts.	compound may be used in place of paint.
	antenna unit
	Antenna	Check for dirt and cracks	Clean radiator surface with freshwater-
	radiator	on radiator	moistened cloth. Do not use plastic sol-
		surface.	vents for cleaning.

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