User manual

Repair and Replacement Procedures
ProMaster 2500 User Manual 7-21
Replacing the Labeler
Power Supply
If the labeler power supply fails, follow the steps below to replace it. Be
sure to note the direction of rotation before you remove the fan so that
you can reinstall it correctly.
1. Turn off the 2500 and remove the power cord.
2. Disconnect the three AC input cables on the right side of the power
supply assembly.
3. Disconnect the two output cables on the left side of the power supply
assembly.
4. Use a 3/32-inch hex wrench to remove the two mounting screws
from the back panel of the 2500.
5. Carefully lift out the labeler power supply assembly.
6. Install the new labeler power supply assembly, reconnect the cables,
and reinstall the mounting screws.
System Fan Replacement
This procedure describes the steps required to remove and replace the
system fan.
Replacing the
System Fan
If the system fan fails, follow the steps below to replace it.
1. Turn off the 2500 and remove the power cord.
2. Remove the four 7/64-inch hex screws.
3. Carefully lift out the system fan.
4. Install the new system fan and reconnect the power cable.
Controller Board Replacement
This procedure describes the steps required to remove and replace the
controller board.
Replacing the
Controller Board
If the controller board fails, follow the steps below to replace it. Make sure
you observe all static safety precautions.
1. Turn off the 2500 and remove the power cord.
2. Note the positions and polarities of all of the cables connected to the
controller board before you disconnect any of the cable connectors.
3. Disconnect all of the cable connectors.