Hypertherm Duramax Hyamp Series, Service Manual

Page: 77 / 102

Duramax Hyamp Long Handheld Torches Service Manual 808290 77
4 – Component Replacement
Replace the extension tube
Remove the extension tube
1. Turn OFF ( O ) the power, disconnect the gas supply, and disconnect the torch.
2. Remove all components from the upper and lower parts of the torch, including the consumables. See Remove the
handle on page 45 and Remove the front shell on page 51.
3. Remove the torch body from the rest of the torch. See Remove the torch body on page 62.
4. Discard the extension tube.
Install the extension tube
1. Make sure the consumables have been removed from the torch.
2. Make sure that the pilot terminal screw on the torch head is tightened to 17.3 kg∙cm (15 inch∙pounds).
3. Install the new extension tube as you reinstall the torch body. See Install the torch body on page 65.
4. Reinstall the front shell. See Install the front shell on page 53.
5. Reinstall the rest of the torch components and the torch handle. See Install the handle on page 47.
Kit Description
428280* Kit: Duramax Hyamp long handheld torch extension tube replacement, 0.6 m (2 feet)
428281* Kit: Duramax Hyamp long handheld torch extension tube replacement, 1.2 m (4 feet)
428820* Kit: Duramax Hyamp long handheld torch extension tube replacement, 1.8 m (6 feet)
* The extension tubes cannot be used to convert from one torch length to another torch length .