POWER SUPPLY SETUP
powermax
45
Operator Manual 2-7
Prepare the gas supply
The gas supply for the Powermax45 can be shop-compressed or cylinder-compressed.A high-
pressure regulator must be used on either type of supply and must be capable of delivering gas to
the filter on the power supply at 360 scfh @ 90 psi (170 l/min @ 6.2 bar).
Generator recommendations
When using a generator with the Powermax45, it should produce 240 VAC nominal current.
Engine
drive rating
Engine drive
output current
Performance
8 KW 33 A Good arc stretch at 45 A cutting current
6 KW 25 A
Limited arc stretch at 45 A cutting current
Good arc stretch at 30 A cutting current
WARNING
Do not allow the gas supply pressure to exceed 135 psi (9.3 bar). The filter bowl may
explode if this pressure is exceeded.
Notes: Based on the generator rating, age, and condition, adjust the cutting current as needed.
If a fault occurs while using a generator, turning the power switch quickly to OFF and
then to ON again (sometimes called a “quick reset”) may not clear the fault. Instead, turn
OFF the power supply and wait 30 to 45 seconds before turning to ON again.
If gas supply quality is poor, cut speeds decrease, cut quality deteriorates, cutting thickness
capability decreases, and the life for consumables shortens. For optimum performance, the gas
should have a maximum particle size of 0.1 micron at a maximum concentration of 0.1 mg/m
3
, a
maximum dewpoint of -40° C (-40° F), and a maximum oil concentration of 0.1 mg/m
3
(per ISO
8573-1 Class 1.2.2).
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