Hypertherm HT2000-200 Volt - Manual (Page 143)

OPERATION: ARGON-HYDROGEN MANIFOLD
7-6 HySpeed HT2000
Instruction Manual
19
WARNING
Before operating this system, you must read the Safety section thoroughly!
Verify main disconnect switch to the HT2000 power supply is OFF before proceeding with the
following steps.
Operation
Prior to operation, ensure that your cutting environment and that your clothing meet the safety requirements
outlined in the
Safety
section of this manual. If problems occur during operation, refer to the
Installation
portion of this section as well as
Section 4
.
Note: For operation without argon-hydrogen manifold, see
Section 6: Operation.
Check Torch
1. Remove the consumables from the torch and check for worn or damaged parts.
Always place the
consumables on a clean, dry, oil-free surface after removing. Dirty consumables can cause the
torch to malfunction.
• Check the pit depth of the electrode. The electrode should be replaced when the depth exceeds
.040 inch (1 mm).
• Wipe the current ring in the torch with a clean paper towel or Q-tip (see Figure 6-7).
• Refer to the
Cut Charts
to choose the correct consumables for your cutting needs.
2. Replace consumable parts. Refer to
Changing Consumable Parts
in
Section 6
for detailed information on
replacing consumables.
3. Ensure that the torch is squared to the material. Refer to
Section 4
for the torch alignment procedure.
4. Verify that argon-hydrogen cable 14X1 is connected to the argon-hydrogen manifold.
Turn Gases On
1. Set
S2
toggle switch on the gas console to
Run.
2. Set
S1
switch to
N2/Air
position.
3. Turn the argon-hydrogen gas supply and the nitrogen gas supply
ON.
Verify that the oxygen and air gas supplies remain
OFF
.
• Adjust the argon-hydrogen
plasma gas
supply regulator to read
120 psi +/- 10 psi (8.2 bar +/- 0.7 bar)
.
• Adjust supply regulator for
shield gas
to read
90 psi +/- 10 psi
(6.2 bar +/- 0.7 bar)
.
S1
S2