Removing The Load; Model 864X; Model 864Xb - BIRD Moduload 8640 Series Operation Manual

Moduload® RF Load Resistor

Removing the Load

Radiator fins are very sharp. Avoid contact with the radiator fins. Failure to comply
Disconnect the unit from all power line and RF power sources before servicing. Do not
disconnect the unit from the RF transmission line while RF power is applied.

Model 864x

1. Disconnect the RF line.
2. Drain the coolant (See
3. Remove the screws that secure the top panel.
4. Lift the top panel and disconnect the fan-supply plug located on top of the radiator block.
5. Loosen the hose clamps on both water hose connections to the load.
6. On the inside of the front panel, remove the nuts holding the load to the front panel.
Note: Remove the nuts only. Do not disturb the screws. The screws also secure the outer conductor
assembly to the load. Hold this assembly to keep it from falling and being damaged.
7. Unscrew the mounting clamp holding the load to the rest of the unit. Remove the top half of the clamp.
8. Carefully push the load forward a few inches to access the wires and water connection fittings.
9. Disconnect the flow switch wires from the front panel.
10. Note the position and direction of the flow switch and the output elbow on the load. Unscrew these from the
load.
11. The load can now be removed from the unit.

Model 864xB

1. Disconnect the RF line.
2. Drain the coolant (See
3. Remove the screws that secure the top panel.
4. Lift the top panel and disconnect the fan-supply plug located on top of the radiator block (
5. Loosen the hose clamps on both water hose connections to the load.
6. Remove the screws that secure the load mounting clamp. Remove the top half of the mounting clamp.
7. Disconnect the flow or pressure switch wires. One at the thermal switch, the other at the in-line connector near
the flow or pressure switch.
8. Disconnect the front panel wires at the connector on top of the radiator.
16
may result in severe cuts and bleeding.
Dangerous voltages are present.
Failure to comply may result in severe electrical shock or death.
"Changing Coolant" on page 12
"Changing Coolant" on page 12
WARNING
WARNING
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Figure 9