Work And Earth Connections; Torch Coolant Preparation - ESAB ESP-150 Manuel D'instruction

SECTION 3
Operating the unit without coolant
will cause permanent damage to
coolant pump.
Do not use commercial antifreeze
or tap water. Equipment
malfunctio and damage will occur.
F. 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. 6). Electrically con-
nect work cable to work piece. The connection must be made to a clean,
exposed metal surface free of paint, rust, mill scale, etc. (Fig. 6)
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.
G. TORCH COOLANT PREPARATION
1. Remove the cap from the coolant filter tank. Fill coolant tank with 2 gallons
(7.5 liters) of plasma system coolant (P/N 156F05) - supplied with the pack-
age. The coolant also provides antifreeze protection down to -34°F (1.1°C).
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
will
growth in the water cooler and torch. Automotive type antifreeze will adversely
affect starting and will form deposits in the torch that will cause damage.
2. With installation completed, check all gas and coolant fittings for leaks
using a standard solution.
PT-26
Work Cable -
25 ft. - 678723
50 ft. - 678724
Fig. 15 - Access for filling Torch Coolant Tank
138
INSTALLATION
TORCH COOLANT
FILL ACCESS
LEVEL
INDICATOR
Grounded
Work
Table
Earth
Ground