Repair; Replacing The Fuse; Replacing The Interlock Relay; For Model 864X - BIRD Moduload 8640 Series Operation Manual

Moduload® RF Load Resistor

Repair

Replacing the Fuse

1. Correct the fuse burnout cause.
2. Use a flat blade screwdriver to lift the tab securing the fuse drawer, above the AC mains connector.
3. Remove the defective fuse.
4. Replace with the same type and rating fuse
5. Replace the fuse drawer.

Replacing the Interlock Relay

The interlock relay cannot be repaired in the field. To replace it, follow the instructions below for your model.

For Model 864x

Note: The relay is located on the inside of the front panel at the upper right side.
1. Loosen the screw at the top of the relay clamp.
2. Remove the relay cartridge.
3. Line up the center pin on the new relay with the hole in the socket.
4. Rotate until the key-way engages, then push in.

For Model 864xB

Note: The relay is located on the inside of the front panel at the upper right side.
1. Loosen and remove the nut and washers that secure the relay to the panel.
2. Record the color of each wire and the relay terminal to which it connects then remove the wires from the relay.
3. Remove the relay from its mounting screw.
4. Install the replacement relay by reversing Step 2 through Step 4.
14
WARNING
Disconnect the unit from all power sources before servicing.
The unit may be energized from multiple sources.
The potential for electric shock exists.
Series 115 Vac:
8640 15 amp
8640B 15 amp
WARNING
Disconnect the unit from all power sources before servicing.
The unit may be energized from multiple sources.
The potential for electric shock exists.
230 Vac
8 amp
8 amp