Bird Technologies SCC8 Series-Manual - Manual (Page 27)

Maintenance
13
Changing the Coolant
Note: To just add coolant, go to step 5. To just drain the coolant,
follow steps 1 – 4.
1. Get a clean container, with a capacity of 3 gal. (11 L), to hold the old coolant.
2. Remove the filler cap on the top and at the rear of the unit.
Note: This will allow the coolant to drain faster.
3. Unscrew and remove the drain plug at the bottom rear.
4. Drain the coolant into the container.
Note: If the coolant has no contaminants it may be reused.
5. Replace the drain plug and screw it tightly into place.
6. Add about 3 quarts (2.9 L) of coolant.
7. Turn the unit on for a few seconds to draw coolant into the system.
8. Repeat steps 6 and 7 twice more, until the coolant remains steady at or
just below the high mark on the level gauge.
9. Replace the filler cap.
10. Turn the unit on and run it for five minutes to remove any air trapped in
the system.
Flushing the Coolant
Note: If the coolant is contaminated, for example by pipe sealant
or a broken resistor, the system should be thoroughly flushed.
1. Fill the unit with clean, potable water.
2. Run the unit for five minutes with no RF power applied.
3. Drain the coolant and discard it.
4. Repeat steps 1 – 3 until the drained liquid is clear.
5. Refill the system with proper coolant (distilled water or a distilled water/
ethylene glycol mixture) as described above.
Power Meter and Sensor Troubleshooting
Since the power meter and power sensor can only work together, the first step
is to determine which is malfunctioning. Connect the power sensor to the
meter and perform the functional test on page 14. If the power meter is mal-
functioning, refer to the troubleshooting table below. If the power sensor is
malfunctioning, return it for service.
CAUTION
Due to the complexity of the Bird Power Sensor, field repairs beyond
general maintenance should not be attempted. Removal or disturbance of
the power sensor cover can result in cancellation of lifetime warranty.