Repair
Replace Power Supply
1. Perform Shutdown, page 50.
2. Disconnect input and output cables from
both sides of the power supply (805). See
Electrical Schematics, page 94.
3. Insert a flat head screw driver in the mounting
tab on the bottom of the power supply (805) to
remove from the din rail.
4. Install new power supply (805) in reverse order.
Figure 10 24 VDC Power Supply
Repl
ace Surge Protector
1. Loosen connections on terminals 1 and 3 on
CB13. See Electrical Schematics, page 94.
2. Loosen connections on input to power
supply (805) on N and L connections. See
Electrical Schematics, page 94.
3. Remove two screws (612), washers (611), and
surge protector (705) from enclosure.
4. Install new surge protector (705) in reverse order.
Note
Wire on both the circuit breaker and power
supply are interchangeable.
Figure 11 Surge Protector
Replace TCM
1. Follow Before Beginning Repair, page 5 2.
2. Open the electrical enclosure and disconnect all
cables from the TCM (602).
3. Remove the nuts (610) and TCM (602).
Figure 12 Replace TCM
334946A 65
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