Hypertherm Echion, Operator'S Manual

Page: 80 / 194

Preventive maintenance
3
80 810770 Operator Manual Echion
Pr
ev
entive main
tenance
Replace the water filter
Parts, tools, and materials
Do this task when the pump is off.
1. Turn
OFF
the water to the pump.
2. Remove the top cover and the front panel. Refer to Inspect the pump on page 39 for
instructions.
3. Use the filter wrench to loosen the filter canister.
4. Remove the used filter cartridge from the filter canister. Discard the used filter.

There is an O-ring in the top of the canister.
5. Pour all of the water and debris out of the canister. Rinse or wipe out the canister, if necessary.
6. Put a new filter cartridge in the canister. The filter does not have a designated top or bottom.
7. Use the filter wrench to install the filter canister.
8. Turn
ON
the water to the pump.
9. Turn
ON
the pump.
10. On the operator interface, touch the symbol start the pump.
11. Make sure that the difference between the values on the prefilter water-pressure gauge and the
postfilter water-pressure gauge is less than 0.7 bar (70 kPa / 10 psi).
Do this task:
 every 1,000 hours.
 if the difference between the values on the prefilter water-pressure gauge and the postfilter water-pressure
gauge is more than 0.7 bar (70 kPa / 10 psi).
Filter cartridge, water, 1.0 micron, 10-inch
Filter wrench (included in the standard tool kit)
Recommended materials
Bucket or pail