ESAB ESP-150 - Work and Earth Connections; Torch Coolant Preparation

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3.6 Work and Earth Connections
1. Connect terminal lug end of the work cable assembly to stud on lower left corner
of front panel. Nut should be wrench tight. (Fig. 15). Electrically connect work
cable to work piece. The connection must be made to a clean, exposed metal
surface free of paint, rust, mill scale, etc. (Fig. 15).
2. Make sure workpiece is connected to an approved earth ground. Use copper
ground cable equal to or larger than the power supply chassis ground listed in
Table 1.
3.7 Torch Coolant Preparation
1. Remove the cap from the coolant lter tank. Fill coolant tank with 2 gallons (7.5
liters) of plasma system coolant (P/N 156F05) - supplied with the package. The
coolant also provides antifreeze protection down to -34°.
Due to high electrical conductivity, use of tap water or commercial antifreeze is
NOT recommended for torch cooling. Use of tap water can result in algae growth
in the water cooler and torch. Automotive type antifreeze will adversely aect
starting and will form deposits in the torch that will cause damage.
2. With installation completed, check all gas and coolant ttings for leaks using a
standard solution.
TORCH COOLANT FILL
ACCESS
Fig. 15 - Access for lling Torch Coolant Tank
Operating the unit without coolant will
cause permanent damage to coolant
pump.
Do not use commercial antifreeze or tap
water. Equipment will malfunction and
damage will occur.
PT-26
Grounded
Work
Table
Earth
Ground
Work Cable -
25 ft. - 23120589
50 ft. - 23120590
LEVEL INDICATOR
SECTION 3 INSTALLATION