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PT-600 Mechanized Plasma Cutting Torch

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SECTION 6<br />

6.6 <strong>Torch</strong> Fails to Fire<br />

Smart Flow II<br />

Water Cooler (WC7)<br />

Troubleshooting<br />

• Low start gas pressure<br />

• Cooling water flow switch not satisfied in Smart<br />

Flow II. Minimum of 1 GPM flow required.<br />

• No high frequency<br />

Cooling water pump pressure too low. Should be<br />

135 psi (9.32 bars)<br />

<strong>Torch</strong> Electrode restricting coolant flow through torch<br />

6.7 No High Frequency in <strong>Torch</strong><br />

<strong>Torch</strong><br />

• Open pilot arc cable<br />

• Open torch leads<br />

• Damaged contact ring assembly<br />

Smart Flow II<br />

No 115 VAC present to H.V. transformer in Smart<br />

Flow II<br />

6-3

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