Printronix P4280, Maintenance Manual

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5–18 Replacement Procedures
Circuit Breaker (Figure 5–6 )
Removal
1. Prepare the printer for maintenance (page 5–3).
2. Open both cabinet doors.
3. Remove the paper fence through the front door.
a. Cut the tie wrap and lift the top left side of the fence.
b. Lift the fence out of the hole at the bottom center.
c. Tilt and remove the paper fence from the hole at the top right.
4. Remove six screws (1) and move the service panel (2) aside.
5. Tag and disconnect the four circuit breaker electrical leads (3).
6. Press in on the spring clips (4) and push the circuit breaker (5) out of the
cabinet.
Installation
1. Press the circuit breaker (5) into the cabinet until the spring clips (4)
snap into place.
CAUTION
Make sure the four leads are connected as shown in Figure 5–6 .
2. Connect the four circuit breaker electrical leads (3) as shown in
Figure 5–6 .
3. Move the service panel (2) back into position and install the six screws
(1).
4. Install the paper fence through the front door.
a. Tilt and install the paper fence in the top right hole in the service
panel.
b. Install the fence in the bottom center hole in the cabinet floor.
c. Set the top left side of the fence in the support bracket and tie
wrap it in place.
5. Return the printer to normal operation (page 5–86).