Tweco CutMaster 12mm - Manual (Page 52)

CUTMASTER 12mm
5-6 SERVICE Manual 0-5076
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 upper and lower screws which secure the
cover to the main assembly. Do not loosen the lower
screws inside the cut out slots in the bottom 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 Removal" 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 locking ring
on the filter assembly fitting, then pull on the hose to
release it. (Numbers 2 and 3 in the following illustra-
tion).
Art # A-07989
1
2
3 4
5
6mm
5. Remove the fitting from the filter element assembly
by inserting a 6 mm hex wrench into the internal hex
fitting and turning it counter clock-wise (left). Numbers
4 and 5 in the previous illustration.
6. Disconnect the input line from the filter element as-
sembly.
7. Remove the filter element assembly through the rear
opening.