7
Inspection
Plasma/Cooling Gas Connection
After receiving your MicroCut 875SC and
removing from package, please inspect unit for
concealed damage. All claims for loss or damage
must be filed by the purchaser with the freight
carrier.
Please ensure the air supply inlet at the back of
the unit is free of packaging materials. Packaging
materials within the air supply inlet will obstruct
air flow to the torch.
The MicroCut 875SC uses compressed air as both
the plasma gas and the cooling gas. Water and oil
in the air reduces the lifespan of your plasma
torch and reduces the quality of your cuts.
Damage incurred due to water and oil entering
your plasma cutting system from the air supply
line is not covered under warranty. While the
MicroCut 875SC comes with an air filter/
regulator, we suggest adding a desiccant dryer to
your compressor.
HTP offers two desiccant dryer/filter systems—
the HTP Super Dry (Fig. 1, Part# 25300) and the
HTP Max Dry (Fig. 2, Part# 25310-2). The HTP
Super Dry is a disposable air dryer that uses a
desiccant to remove moisture from the air. When
the desiccant turns from blue to white, replace the
air dryer. The HTP Max Dry features a five stage
filtration process and includes reusable desiccant.
When the desiccant turns from blue to a clear
orange color, simply pour the desiccant on a
baking sheet, place in the oven, and bake for
about an hour or until the desiccant turns blue
once again.
Fig. 1: HTP Super Dry,
Part# 25300
Fig. 2: HTP Max Dry, Part# 25310-2
Electrical Connection
The MicroCut 875SC operates off of a 220 volt (+/
-20%) single phase input power supply, wired for
a minimum of 30 amps. Only qualified electricians
should perform electrical connections and all
electrical connections must be made in
accordance with the National Electrical Code and
local codes and ordinances.
When fitting your MicroCut 875SC with a power
plug, the ground (yellow-green or green) wire
must be connected to the ground, otherwise
serious injury or death may result. Never connect
the ground (yellow-green or green) wire to an
input (hot) terminal, and never connect the input
(blue and brown) wires to the ground terminal.
We recommend installing a fusible line disconnect
switch in the input power circuit of the MicroCut
875SC, which allows you to safely and easily
remove all input electrical power prior to
inspecting or servicing your plasma cutter.
Before making a connection between the
MicroCut 875SC and the input power supply,
always ensure that the main power switch (Fig. 3,
#8) is in the “Off” position or open the line
disconnect switch.
