Troubleshooting Guide - Thermal Dynamics PAK 200 Operating Manual

PAK 200
Electrode Wear
6. Install the electrode and tighten with multipurpose
wrench. Do not over tighten the electrode. The circular
area around the wrench used for electrodes will also
align the electrode in the torch head. This will prevent
installing electrodes on an angle and cross threading
the electrode in the torch head.
7. Install the gas distributor.
8. Install the tip and tighten with the multipurpose wrench.
Do not over tighten the tip.
Make sure both the tip and electrode corre-
spond with the plasma and secondary gases
being used, the current range, and the type of
operation. Refer to Section 4.04, Torch Parts
Selection.
9. Hand tighten the shield cup until it is seated on the
torch head. If resistance is felt when installing the cup,
check the threads before proceeding.

7.05 Troubleshooting Guide

A. Troubleshooting
This Sub-Section covers troubleshooting that requires
disassembly and electronic measurements. It is helpful
for solving many of the common problems that can arise
with this torch assembly.
B. How to Use This Guide
The following information is a guide to help the Customer/
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)
Locate your symptom, check the causes (easiest listed
first) then remedies. Repair as needed being sure to verify
that unit is fully operational after any repairs.
A. Torch will not pilot when torch switch is activated
1. Power Supply RUN/SET switch in SET position
TORCH MAINTENANCE
CAUTION
a. Place RUN/SET switch to RUN position.
2. Torch switch activated during 20 second pre-flow
a. Release torch switch and wait at least 20 sec-
onds before activating switch again.
3. Coolant return lead clogged or plugged.
a. Check coolant return into unit reservoir. Inspect
torch assembly and replace if necessary.
4. Faulty torch parts.
a. Inspect torch parts and replace if necessary.
Refer to Section 5.04, Inspection and Replace-
ment Consumable Torch Parts
5. Plasma gas pressure too high.
a. Refer to torch consumables information for
correct pressure.
6. Faulty components in torch and leads assembly
a. Inspect torch assemblies and replace if neces-
sary. Refer to Section 5.08, Torch and Leads
Troubleshooting.
7. Faulty components in power supply system com-
ponents
a. Return for repair or have qualified technician
repair per Service Manual.
B. No cutting output
1. Torch not properly connected to power supply
a. Check that torch leads are properly attached to
power supply.
2. Poor Work Cable Connection.
a. Inspect work cable connection and adjust if
necessary.
3. Faulty components in torch and leads assembly
a. Inspect torch assemblies and replace if neces-
sary. Refer to Section 5.08, Torch and Leads
Troubleshooting.
4. Faulty components in power supply system com-
ponents
a. Return for repair or have qualified technician
repair per Service Manual.
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