Hypertherm Duramax 228735, Field Service Bulletin

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Torch sleeve, coupler, and Gear rack replacemenT
Field Service Bulletin 3
Disassemble the torch and remove the mounting sleeve
1. Turn OFF the power and disconnect the torch lead from the power supply.
2. Remove the consumables from the torch.
3. If applicable, unscrew the strain relief body from the strain relief nut and slide the strain relief body back along the
torch lead.
4. If applicable, unscrew the strain relief nut from the positioning sleeve (Full-length machine torch) and slide the nut
back along the torch lead.
5. Unscrew the positioning sleeve (Full-length machine torch) from the coupler.
6. Unscrew the coupler from the mounting sleeve.
7. Use a #1 Phillips screwdriver to remove the three screws from the consumables end of the mounting sleeve and
slide the mounting sleeve off the front of the torch body.
Reassemble the torch with the new mounting sleeve
1. Slide new mounting sleeve over the front of the torch body, aligning the slot in the mounting sleeve with the cap
sensor plunger.
2. Use a #1 Phillips screwdriver to tighten the three mounting sleeve screws to 11.52 kg-cm (10 inch-pounds).
3. Thread the coupler into the mounting sleeve until hand tight.
4. Thread the positioning sleeve (Full-length machine torch) into the coupler until hand tight.
5. If applicable, thread the strain relief nut into the positioning sleeve (Full-length machine torch) until hand tight.
6. If applicable, thread the strain relief body onto the strain relief nut until hand tight.
7. Install the consumables.
Part number Description Quantity
075618 Machine screw: 4-40 x 3/8 pan head 3
075754 Machine screw: 4-40 x 3/16 pan head 1
220956 Torch mounting sleeve 1
Kit 228735 contents
Replace the machine torch mounting sleeve
Please refer to Figures 1, 2, and 3 on page 2 when performing the following procedure.