ESAB Caddy Tig 2200i AC/DC Service Manual

S0740 800 179/E071123/P64
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ct33f3diode
Checking rectifier and freewheel diodes
1. Disconnect the machine from the mains.
2. Dismantle the housing of the machine.
3. Use a Torx key no. T25 to unscrew and remove five screws from circuit board 15AP2.
The screws are marked
on the picture below,
4. Bend out the circuit board so that it has no contact with the connections of the diode
module.
5. Use a multimeter in diode test position to measure the forward voltage drop of the two
diodes: see the picture below. The voltage drop must be 0.3 to 0.5 V.
6. If the diode module has to be replaced, follow the instructions on page 56.
Measuring points, circuit board 15AP2
Circuit diagram with measuring points, circuit board 15AP2

ESAB Caddy Tig 2200i AC/DC Specifications

General

AC Frequency	20 - 250 Hz
Dimensions	418 x 188 x 345 mm
Weight	15 kg
Protection Class	IP23
Frequency	50/60 Hz
Duty Cycle (TIG DC, 220A)	25%
Duty Cycle (TIG AC, 220A)	25%
Input Voltage	230 V
Current Range (TIG AC/DC)	220 A