Soham Impex SI-TIG-300, Operating Manual

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
Routine and periodic maintenance
WARNING!
ELECTRIC SHOCK CAN KILL
Turn the input power OFF at the mains switch & fuse box before working on this equipment.
Have a qualified electrician install & service this equipment.
Allow machine to sit for 5 minutes minimum to allow the power capacitors to discharge before working
inside this equipment.
Do not touch electrically live parts
1. Periodically remove the side/top panels of machine and clean out machine with a low pressure dry
air line paying particular attention to PC Boards, Fan blades, HF points
2. Inspect input and output cables & hoses for fraying, cuts & bare spots
3. Keep tig torch and cables in good condition
4. Clean air vents to ensure proper air flow and cooling
5. The fan motor has sealed bearings which requires no maintenance

Troubleshooting
Service & repair should only be performed by trained personnel who has knowledge of ineternal .
Unauthorised repairs performed on this welding equipment may result in danger or injury to the
technician and machine operator and will invalidate your warranty. For your safety and to avoid electric
shock, please observe all safety notes and precautions detailed throughout this manual
The troubleshooting guide is provided to help you locate possible machine malfunctions
If fault / problem is not solved please send complaint to our company
Details of our address , phone numbers and E mail id are given in front page of this manual.
Tig welding problems
•
No output - Power light is not lit
Check machine on/off switch is in the ‗on‘ position Check
Input power to machine Check plug wiring Check mains trip / fuses
•
No output - Fan runs - Power light is lit Check torch connections are secure and torch switch
operation, try replacing tig torch. If you have a multi-meter check continuity between pins 1 and 2
on torch switch plug when pressing torch switch
•
No output - Power light is lit - Warning light is lit Welding application may have exceeded
recommended duty cycle, allow machine to cool down until the warning light goes out.
•
No output
–
Power light is lit
–
Gas at torch end when trigger pressed Check torch condition
–
possible break in torch power cable
–
replace torch