Kaliburn SR-45i, User Manual

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Maintenance and Troubleshooting SR-45i User’s Manual
Torch will not ignite 1. Replace torch consumables.
2. Check all LED’s for proper operation.
3. Check all primary disconnect fuses.
4. Check for a spark at the spark gap oscillator.
5. Verify that the main contactor CON2 is pulling
in.
6. Verify that the pilot arc relay PAR is pulling
in.
7. Check the continuity of the torch leads and
verify that all torch lead fittings are secure.
Replace the torch leads if there are any visible
signs of damage.
8. Verify that the Torch Minus lead and Pilot Arc
lead are not shorted together. Check the torch
and the torch leads separately.
9. Check the torch for any visible signs of
damage. Replace if necessary.
10. Check the surge injection capacitors (C3 on the
I/O p.c. board) and the surge injection resistor
R5, which is mounted just above the I/O p.c.
board. Replace if necessary.
11. Proceed to chopper test.
Poor cut quality
1. Consumables worn. Replace as necessary.
2. Gas pressure not adjusted to 65 psi.
3. Incorrect cutting conditions (current, speed,
torch height, etc.). See Section 4 for cutting
conditions.
4. Wrong mode of operation. See Section 4 for
operating modes.
5. Arc not transferring to workpiece. Check all
connections on the work ground lead. Verify
that the connections are tight and free from
corrosion. If necessary, use a wire brush to
clean the connections.
6. Workpiece not grounded to the cutting table.
Replace the table slats if necessary.
7. Gas supply contaminated. Install/replace
filters as necessary.
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