Unitor UPC 85 ML, Instruction Manual, Page: 15 / 24

15
7 TROUBLESHOOTING
The following lists the more common cutting faults and possible causes:
1. Insufficient penetration
a. Cutting speed too fast
b. Torch not at 90°
c. Metal too thick
d. Worn torch parts
e. Cutting current too low
f. NON- genuine manufacturer parts
2. Cutting Arc Extinguishes
a. Cutting speeds too slow
b. Torch stand-off too high from work piece
c. Cutting current too high
d. Work cable disconnected
e. Worn torch parts
f. NON- genuine manufacturer parts
3. Excessive dross Formation
a. Cutting speeds too slow
b. Torch stand-off too high from work piece
c. Worn torch parts
d. Improper cutting current
e. NON- genuine manufacturer parts
4. Short Life of Torch parts
a. Oil or moisture in air source
b. Exceeding system capability (material too thick)
c. Excessive pilot arc time
d. Air flow too low (incorrect air pressure)
e. Improperly assembled torch
f. NON- genuine manufacturer parts
NO AIR
The Led (1) will turn OFF.
1. No air into the system
2. Check air flow
Check the air pipe are correctly connected to the Gas regulator on the back of the unit and the pressure is
correct. (see INSTALLATION - PNEUMATIC CIRCUIT)