Manual 0-2844 5-1 CUSTOMER/OPERATOR SERVICE
SECTION 5:
CUSTOMER/OPERATOR
SERVICE
5.01 Introduction
This section describes basic maintenance procedures per-
formable by operating personnel. No other adjustments
or repairs are to be attempted other than by properly trained
personnel.
5.02 General Maintenance
A. Maintenance Schedule
WARNING
Disconnect primary power to the system before dis-
assembling the torch, leads, or power supply.
To clean the unit, open the enclosure per procedures in
section 5.05-A, Cover Removal, and use a vacuum cleaner
to remove any accumulated dirt and dust. The unit should
also be wiped clean. If necessary, solvents for cleaning
electrical apparatus may be used.
Refer to Appendix 4 for maintenance schedule and proce-
dures.
B. Regulator/Filter Element Replacement
The Regulator/Filter Assembly is on the rear panel. For
better system performance, the Regulator/Filter Assembly
filter element should be checked per the Maintenance
Schedule, and either cleaned or replaced. Refer to Section
6 for replacement element catalog number.
1. Remove power from the power supply; turn off the
gas supply.
2. Unscrew the bowl on the bottom of the Filter Regu-
lator Assembly. The filter element will be visible
and still attached to the main body of the Filter Regu-
lator.
3. Grasp the filter element and unscrew it from the
Filter Regulator body. The filter element will come
off with a spool and some additional pieces.
4. Note the correct assembly of the filter/spool then
remove the filter from the spool and either clean it
or replace it.
5. The filter element and spool, with the baffle ring in
place (teeth facing downward) can be screwed back
into the Regulator body by compressing the spring
on the spool. Tighten firmly by hand.
Art # A-02995
Regulator/Filter
Assembly
Spool
Bowl
Spring
Filter
Element
No. 9-4414
Baffle
Ring
Filter Regulator Element Replacement
6. Reinstall the bowl.
7. Turn on the air supply.
C. Optional Single-Stage Filter Element
Replacement
NOTES
These instructions apply to power supplies where
the optional Single-Stage Filter has been installed.
The Power Supply shuts down automatically when
the Filter Element becomes completely saturated.
The Filter Element can be removed from its hous-
ing, dried, and reused. Allow 24 hours for Element
to dry. Refer to Section 6 for replacement element
catalog number.
1. Remove power from power supply.
2. Shut off air supply and bleed down system before
disassembling Filter to change Filter Element.
3. Disconnect gas supply hose.
4. Turn the Cover counter-clockwise and remove it
from the Filter Housing. The Filter Element is lo-
cated inside the Housing.
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