Ranger TR-127GK/DX Chapter Maintenance, Precautions, Periodic Inspection, Fuse Replacement

TR-127GK/DX

CHAPTER 5

MAINTENANCE

5.0 PRECAUTIONS

The inherent quality of the solid-state components used in this transceiver will provide many years of continuous use. Taking the following precautions will prevent damage to the transceiver.

(i)Never key the transmitter unless an antenna or suitable dummy load is connected to the antenna receptacle.

(ii)Ensure that the input voltage does not exceed 16 VDC or fall below 11.

(iii)Transmitting over long periods can cause heat built-up and cause transmitter damage.

5.1 PERIODIC INSPECTION

This unit is aligned at the factory to deliver maximum performance. However, continued performance cannot be expected without periodic inspection and maintenance. Important points to be checked regularly are as follows;

Check Item	Action
Whip antenna (option)	If cracked or broken, replace it.
Coaxial cable	If sheath is cracked or immersed
	in water, install new coaxial
	cable.
Coaxial & power plug	If loosened, reconnect. If
connections	corroded, clean contacts.
Battery connection	If corroded, clean power
	terminals.
Ground terminal	If corroded, clean terminal.

5.2 FUSE REPLACEMENT

To protect the equipment from serious damage, a fuse is provided on the power supply lines. The fuse protects against over voltage / reverse polarity or internal fault of the equipment. If the fuse has blown, first find out the cause of the trouble before replacing it. A fuse rated for more than the transceiver requirement should not be used, since it may permanently damage the equipment. Damage due to over fusing is not covered by the warranty.

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