Tweco CutMaster 12mm-20mm-25mm - Manual (Page 56)

CUTMASTER 12mm, 20mm, 25mm
SERVICE 5-6 Manual 0-5117
5.06 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 NOTE screws which secure the
cover to the main assembly. Do not loosen the
lower screws inside the cut out slots in the bot-
tom of the cover.
Upper
Screws
Lower
Screws
Lower
Screws
Art # A-07947
Slots
2. Carefully pull the Cover up and away from the
unit.
B. Cover Installation
1. Reconnect the ground wire, if necessary.
2. Place the cover onto the power supply so that
slots in the bottom edges of the cover engage
the lower screws.
3. Tighten lower screws.
4. Reinstall and tighten the upper screws.
C. Filter Element Assembly Replacement
The Filter Element Assembly is in the rear panel. For
better system performance, the filter element should
be checked per the Maintenance Schedule (Subsection
5.02), and either cleaned or replaced.
1. Remove power from the power supply; turn
OFF the gas supply and bleed down the system.
2. Remove the system cover. See "A Cover Re-
moval" in this section.
3. Locate the internal air line and the fitting from
the filter assembly. Number 1 in the following
illustration.
4. Hold a wrench or similar tool against the lock-
ing ring on the filter assembly fitting, then pull
on the hose to release it. (Numbers 2 and 3 in
the following illustration).
Art # A-07989
1
2
3
4
5
6mm