Bird Technologies 8640B Series - Manual (Page 33)

Bird 8640 Series Moduload RF Load Resistor
22
Pump Removal
1. Drain the coolant (see “Changing Coolant” on page 15).
2. Remove the load (see “Load Removal” on page 18).
3. Disconnect the pump wire leads from the terminal block on the
inside of the front panel.
4. Loosen the hose clamps on the input and output hoses to the
pump, and remove the hoses.
5. Loosen the hose clamp on the drain tube at the base of the pump.
Remove the drain tube.
6. Unscrew the bolts securing the base of the pump to the unit.
7. Carefully remove the pump from the unit.
8. Note the position and direction of the fittings, then twist them off
counterclockwise.
9. To replace the pump, reverse the above steps. When replacing the
threaded fittings, carefully coat the external threads, ONLY, with
a pipe sealing compound. Coating only the external threads
reduces the chances of contaminating the coolant.
WARNING
Disconnect the unit from all power sources before servicing.
The unit may be energized from multiple sources.
The potential for electric shock exists.