Tweco PC-500 - Manual (Page 42)

SERVICE 5-10 Manual 0-4601
5.04 Power Supply Basic Parts Replacement
WARNING
Disconnect primary power to the system before disassembling the torch, leads, or power supply.
This section describes procedures for basic parts replacement. For more detailed parts replacement procedures, refer to
the Power Supply Service Manual.
A. Cover Removal
1. Remove the upper screws which secure the cover to the main assembly.
NOTE
There is a ground wire connection to the inside of the unit. There is no need to disconnect the ground wire, unless there
is a need for more room to work.
Art # A-03939
Lower
screws
Ground wire
Lower
screws
Upper
screws
2. Loosen, but do not remove, the lower screws, then carefully pull the Cover up and away from the unit.