Tweco CE PAK Master 150XL Without Latch Circuit - Manual (Page 41)

Manual 0-2696 5-1 SERVICE
SECTION 5:
SERVICE
5.01 Introduction
This section describes maintenance procedures, basic trouble-
shooting and service performable by operating personnel. No
other adjustments or repairs are to be attempted by other than
properly trained personnel.
5.02 General Maintenance
A. Routine Maintenance
NOTE
Refer to Appendix 4 for a recommended mainte-
nance schedule for water cooled plasma cutting
systems.
Routine maintenance for the Power Supply should in-
clude an occasional thorough cleaning and inspection. The
frequency depends on the usage and the operating envi-
ronment.
WARNING
Disconnect primary power at the source before as-
sembling or disassembling power supply, torch
parts, or torch and leads assemblies.
B. Power Supply Cleaning
To clean the unit, open the enclosure and use a vacuum
cleaner to remove any accumulated dirt and dust. The
unit should also be wiped clean. If necessary, solvents
that are recommended for cleaning electrical apparatus
may be used.
WARNING
Do NOT blow air into the power supply during
cleaning; make sure to always blow air out of the
unit. Blowing air into the unit can cause metal
particles to interfere with sensitive electrical com-
ponents and cause damage to the unit.
While the unit is open, inspect the wiring in the unit. Look
for any frayed wires or loose connections that should be
corrected.
C. Coolant Filter Assembly Cleaning
The Coolant Filter Screen should be cleaned periodically. To
gain access to the Coolant Filter Assembly, remove the right
side panel when viewed from front of unit. Remove the Filter
Screen by unscrewing the filter holder from the Coolant Filter
Assembly. Clean the filter screen by rinsing with hot soapy
water. Remove soap residue by rinsing with clean hot water. Be
sure that all the soap has been removed and the screen is dry of
water before re-installing in the Coolant Filter Assembly.
A-02152
Filter Holder
Filter
Figure 5-1 Coolant Filter Assembly