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COOL ARC
®
22
PUMP INLET STRAINER MAINTENANCE
Poor cooler performance can usually be traced to a partially or
completely blocked pump inlet strainer. This is a user-serviceable
item and can be cleaned and reused, or replaced.
Continued pump operation with a blocked strainer can cause:
• Voiding of cooler service warranty
• Damage to the pump head's inlet areas
• Torch damage from overheating due to insufficient coolant
flow rate.
A new or properly cleaned pump inlet strainer should restore the
cooler's performance.
It is recommended to clean or replace the pump's inlet strainer at
least once a year.
ACCESS THE STRAINER
• DISCONNECT WELDER AND COOLER FROM POWER
• The strainer access panel is located on the back lower left,
remove two screws - see Figure 7
FIGURE 7
• Next remove the large brass bolt (approx. 15/16-inch hex).
See Figure 8. A deep well socket or tongue and groove pliers
may be used. A small amount of coolant may leak.
FIGURE 8
Brass Bolt
• Strainer will be removed with bolt
• Clean strainer and reassemble
D-2
MAINTENANCE
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