Safety; Maintenance - Raymarine RD418HD User Manual

3.1 Safety

Warning: Do not remove covers
Do not remove any cover from this product. There are
no user serviceable parts inside.
Warning: Switch off power
Before commencing any maintenance task, switch off
all power to the product.
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3.2 Maintenance

Once a year:
1. Remove one of the antenna-securing bolts and associated
washers.
2. Clean the bolt and washers.
3. Use Denso paste to lightly re-grease the bolt thread.
4. Replace the bolt and associated washers.
5. Repeat steps 1 to 5 for all antenna-securing bolts.
6. Tighten all antenna-securing bolts to a torque of
20 Nm (177 lbf/inch).
Periodically, carry out these other maintenance tasks:
• Ensure the antenna is firmly attached to the mounting surface
• Check that the cable connections are in good condition and
securely attached.
• Examine all cables for signs of chafing, cuts or other damage. If
the antenna connector shows any sign of corrosion:
1. Disconnect it.
2. Clean the connector.
3. Lightly re-coat the connector threads with Renolit Aqua 2
Calcium grease.
4. Reconnect and hand-tighten the connection until it is secure.
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