Bird Technologies SCC8 Series-Manual - Manual (Page 34)

Maintenance
20
Load Servicing
Replacing Resistor Assembly
1. Disconnect the RF line from the Cal Cart
2. Disconnect the Sensor from the Load.
3. Remove the Cal Cart front panel (see "Removing the Front Panel" on page 17).
4. Disconnect the load’s AC line from the terminal strip.
5. Drain the coolant (See “Changing the Coolant” on page 13).
6. Remove the screws around the edge of the top panel
7. Raise the top panel only high enough to gain access to the fan supply plug.
8. Disconnect the fan-supply plug on top of the radiator block by pressing the
latch in the center of the plug while pulling away from the mating connector.
9. Unscrew the hose clamps on both water connections to the resistor assembly.
10. Remove the nuts, on the inside of the front panel, holding the assembly to
the front panel.
 Note: Remove the nuts only. Do not disturb the screws. The screws
also secure the outer conductor assembly to the resistor. Hold this
assembly to keep it from falling and being damaged.
11. Unscrew the mounting clamp holding the resistor assembly to the rest of
the unit.
12. Remove the top half of the clamp.
13. Carefully push the assembly forward a few inches to access the wires and
water connection fittings.
14. Note the position and direction of the output elbow then unscrew it from
the load.
15. The resistor assembly can now be removed.
WARNING
To avoid personal injury, disconnect the power cord from the AC line before
performing any maintenance, including fuse replacement.
WARNING
Never attempt to connect or disconnect RF equipment from the
transmission line while RF power is being applied.
Leaking RF energy is a potential health hazard.