Tweco 150XL CE PAK Master - Manuel (Page 37)

Manual 0-2826 5-1 SERVICE
SECTION 5:
SERVICE
5.01 Introduction
This section describes maintenance procedures, basic
troubleshooting and service performable by operating
personnel. No other adjustments or repairs are to be at-
tempted by other than properly trained personnel.
5.02 General Maintenance
A. Routine Maintenance
NOTE
Refer to Appendix 7 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 rins-
ing with hot soapy water. Remove soap residue by rins-
ing 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
D. In-Line Coolant Filter Assembly Cleaning
The In-line Coolant Filter Screen should be cleaned peri-
odically. To gain access to the In-Line Coolant Filter As-
sembly remove the right side panel (when viewed from
the front of unit). Remove the Filter Screen by unscrew-
ing the Filter Holder from the In-Line Coolant Filter As-
sembly. 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 In-
Line Coolant Filter Assembly.