Tweco 12mm Cutmaster - Manual (Page 34)

CUTMASTER 10MM, 12MM
SERVICE SYSTEM 5-4 Manual 0-5197AD
H. Output is restricted, and can not be controlled.
1. Input or output connection is poor.
a. Check all input and output connection leads.
2. Working cable connection to workpiece is poor.
a. Make sure that work cable has a proper connection to a clean, dry area of the workpiece.
3. Faulty components in unit.
a. Have an Accredited CIGWELD service provider repair or replace as required.
I. Cutting output is unstable or inadequate.
1. Input or output connection is poor.
a. Check all input and output connection leads.
2. Working cable connection is poor.
a. Make sure that work cable has a proper connection to a clean, dry area of the workpiece.
3. Low or fluctuating input voltage.
a. Have a qualified electrician check input line voltage under load.
J. Hard to startup.
1. Torch parts worn (consumables).
a. Turn OFF input power, remove shield cup, tip, start cartridge, and electrode and check them all. If the
electrode or cutting tip is worn out, replace them. If the start cartridge does not move freely, replace it.
If there is too much spatter on shield cup, replace it.
K. Arc goes OUT while operating. Arc can’t be restarted when torch trigger is activated.
1. Power Source is overheated (TEMP indicator ON).
a. Let unit cool down for at least 5 minutes. Make sure the unit has not been operated beyond duty cycle
limit.
2. Fan blades blocked (TEMP indicator ON).
a. Check and clear blades.
3. Air flow blocked.
a. Check for blocked air flow around the unit and correct condition.
4. Gas pressure is too low. (Air indicator ON when torch trigger is activated.)
a. Check gas source. Adjust to proper setting value.
5. Torch parts worn.
a. Check torch shield cup, cutting tip, start cartridge and electrode. Replace as needed.
6. Faulty component in unit.
a. Have an Accredited CIGWELD service provider repair or replace as required.