Tweco PAK 200i - Manual (Page 73)

PAK 200i
Manual 0-5335 TORCH INFORMATION 7-5
CAUTION
Make sure both the tip and electrode correspond with the plasma and secondary gases being used, the current range,
and the type of operation. Refer to Section "7.06 Servicing Hand Torch Components" on page 7-7.
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. For more detailed troubleshooting that requires a qualified technician, refer to the advanced trouble-
shooting in the Appendix.
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
a. Place RUN/SET switch to RUN position.
2. Coolant return lead clogged or plugged.
a. Check coolant return into unit reservoir. Inspect torch assembly and replace if necessary.
3. Faulty torch parts.
a. Inspect torch parts and replace if necessary. Refer to "7.04 Inspection and Replacement Consumable
Torch Parts" on page 7-3
4. Plasma gas pressure too high.
a. Refer to torch consumables information for correct pressure.
5. Faulty components in torch and leads assembly
a. Inspect torch assemblies and replace if necessary. Refer to Section "7.08 Torch And Leads Troubleshoot-
ing" on page 7-10.
6. Faulty components in power supply system components
a. Return for repair or have qualified technician repair per advanced troubleshooting section.