Tweco Merlin 6000 Plasma Cutting CE Slave Power Supply - Manual (Page 29)

Manual 0-2603 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 by other than properly
trained personnel.
For major troubleshooting and parts replacement proce-
dures refer to the Slave Power Supply Service Manual 0-
2604.
5.02 Routine Maintenance
NOTE
Refer to Appendix 6 for a recommended mainte-
nance schedule for non-water cooled plasma cut-
ting 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.
Remove both Side Panels of the Power Supply and blow
out any accumulated dirt and dust with compressed air.
The unit should also be wiped clean. If necessary, sol-
vents that are recommended for cleaning electrical appa-
ratus may be used.
While the side panels are off, inspect the wiring in the
unit. Look for any frayed wires or loose connections that
should be corrected.
5.03 Troubleshooting
General
Troubleshooting and repairing the this unit is a process which
should be undertaken only by those familiar with high voltage
high power electronic equipment.
WARNING
There are extremely dangerous voltage and power
levels present inside this unit. Do not attempt to
diagnose or repair unless you have had training in
power electronics measurement and troubleshoot-
ing techniques.
Basic Troubleshooting
This manual covers a basic level of troubleshooting that
requires limited disassembly and measurements. It is
helpful for solving many of the common problems that
can arise with a plasma cutting system.
NOTE
For major troubleshooting and parts replacement
procedures refer to Slave Power Supply Service
Manual 0-2604.
If major complex subassemblies are faulty, the unit must
be returned to an authorized service center for repair.
Follow all instructions as listed and complete each sec-
tion of the troubleshooting guide in the order presented.
How to use this Guide
The following information is a guide to help the Cus-
tomer/Operator determine the most likely causes for
various symptoms.
This guide is set up in the following manner:
X. Symptom (Bold Type)
Any Special Instructions (Text Type)
1. Cause (Italic Type)
a. Check/Remedy (Text Type)