Hypertherm Duramax Hyamp Series, Service Manual

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78 Duramax Hyamp Long Handheld Torches Service Manual 808290
4 – Component Replacement
Replace the torch lead
Remove the torch lead
1. Turn OFF ( O ) the power, disconnect the gas supply, and disconnect the torch from the power supply.
2. Remove all components from the torch handle. See Remove the handle on page 45.

You do not need to disassemble the front shell or remove the extension tube to install a
new work lead.
3. Gently pull the cap-sensor switch connector and the pilot terminal screw (encased in heatshrink) out of the trigger
end of the extension tube.
4. Disconnect the cap-sensor switch at the trigger end of the extension tube by pressing the tab on the connector and
pulling the connector apart.
Figure 32
Kit Description
428159 Kit: Duramax and Duramax Hyamp hand torch lead replacement, 7.6 m (25 feet)
428160 Kit: Duramax and Duramax Hyamp hand torch lead replacement, 15 m (50 feet)
428762* Kit: Duramax Hyamp hand torch lead replacement, 46 m (150 feet)
* The 46-m (150-foot) torch leads must be used with a Powermax125. IMPORTANT: If your Powermax125 has a serial number of
125-007943 or lower, you must install a new DSP board (428119). Make sure that the DSP board is at Revision C or higher. See
the
Duramax Hyamp 46-m (150-foot) Torch and Torch Leads Field Service Bulletin
(810260) for more information.
Cap-sensor switch
Tab