Maintenance and Troubleshooting
ProLine 2200 User’s Manual REV N
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5-3
Replacing the Torch Coolant
The torch coolant should be flushed out of the system every six months and
replaced with new coolant. The following procedure should be used to prevent
damage to the cooling system.
Note: When handling coolant, it is recommended that you wear nitrile gloves
and safety glasses.
1. Remove primary power to the system.
2. Remove the rear cover of the power supply to expose the cooling system.
3. Remove the coolant reservoir cap/level gauge.
4. Make sure that consumables are properly installed in the torch head and that
the torch head is installed on the torch base.
5.
Using a funnel to collect the coolant,
unscrew the drain petcock on the
bottom of the coolant reservoir. Leave the funnel in place after the coolant
drains out of the reservoir.
6. Remove the torch coolant supply hose from the rear of the power supply.
Note that the coolant supply hose has right hand threads.
7. Blow compressed air (100 psi maximum) into the coolant supply hose. This
will clear the coolant out of the torch, torch leads, and heat exchanger. Note
that the coolant will be forced into the reservoir and will drain out of the
drain petcock.
8. Unscrew the lower portion of the coolant filter housing and remove the
coolant filter/deionization cartridge.
9. Reconnect the coolant hoses and replace the coolant and coolant
filter/deionization cartridge.
Only use Kaliburn approved torch coolant
solution
. Commercially available antifreeze contains corrosion inhibitors
that will damage the cooling system. See Section 3 for more information on
torch coolant requirements.