Furuno FS-1503 manual Maintenance

4.4 Maintenance

This radiotelephone equipment is designed and manufactured to provide years of intended per- formance. For this, a regular maintenance program should be established and should at least include the items listed in the table below:

Table 4-2 Maintenance

Item	Check Point	Remedy/Remarks
Whip antenna	Check for physical damage, corrosion	Replace damaged parts.
	and water leakage.
Wire antenna	Check that antenna is properly spanned	If necessary, re-span the
	and separated sufficiently apart from	antenna.
	metallic structures.
Insulators for	Check for salt water accumulation on	Replace damaged insulators.
antenna	insulators.	Remove salt water deposits.
installation		Clean with fresh water, then
	Check that connection at lead-in insulator	dry.
	is tight and rust-free.	Remove rust, then tighten bolts
		and lock nuts. Cover metallic
		surface with sealing compound.
Antenna	Check contact at	Tighten loosened connections.
coupler	* Antenna terminal
	* Ground connection
	* Coaxial cable
	* Control cable(terminal board)
	Check that coupler lid and cable glands	Fasten lid firmly and evenly to
	are firmly secured.	prevent water leakage.
	Check for physical damage, corrosion	Replace if damaged.
	and salt water deposits.
Transceiver	Check contact at	Tighten loosened connections;
	* Antenna cable	remove foreign material from
	* Ground connection	connectors.
	* Power cable
	* Control cable
	Confirm that there are no objects on the	Remove objects to prevent
	top of the cabinet.	overheating.
Power supply	Check that supply voltage at transmission	If not within the range, call for
	is within the rated range. (10.8-15.6 VDC	service. Low voltage may cause
	at the power connector)	erratic operation.

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