Preventive Maintenance Program
XPR Instruction Manual 809480 15
Examine the water tube and torch
1. Remove the used water tube from the torch.
2. Examine the water tube for bends and pitting. If you find bends or pitting,
replace the water tube.
3. If you do not find bends or pitting on the water tube, examine the O-ring
on the end of the water tube:
a. Replace the O-ring if you find damage or excess wear.
Torch rebuild kits are available from Hypertherm.
b. Apply a thin film of silicone lubricant (027055) if replacement is not
needed.
The O-ring should look shiny. Too much lubricant can restrict water tube
motion. Remove excess lubricant if found.
4. Examine the nozzle and electrode mating surfaces on the torch main body
for damage or pitting. If found, replace the torch main body.
5. If you do not find damage or pitting, use a clean paper towel or lint-free
cloth to clean the internal and external surfaces of the torch. Use a cotton
swab to clean internal surfaces that are not easy to get to.
Make sure that you do not leave any cotton fibers on the inner
surfaces of the torch main body.
6. Use compressed air to remove any remaining particles from the torch
main body.
Weekly
Examine hoses, cables, and leads
1. Examine all hoses, cables, and leads that connect system components. Look for:
Scrapes, cuts, or holes
Chemical spills or burns
Kinks or bends
2. Replace any hose, cable, or lead if you find damage.
See Part numbers for hoses, cables, and leads on page 32 for lengths
and part numbers.
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