ESAB Cutmaster 40 - Common Faults and Causes

CUTMASTER 40
SERVICE 0-5570
40
Six Months or Every 720 Cutting Hours:
1. Check the in-line air lter(s), clean or replace as required.
2. Check cables and hoses for leaks or cracks, replace if necessary.
!!
CAUTION
Do not blow air into the power supply during cleaning. Blowing air into the unit can cause metal particles to interfere
with sensitive electrical components and cause damage to the unit.
5.03 Common Faults
Problem -
Symptom
Common Cause
Insufficient
Penetration
1. Cutting speed too fast.
2. Torch tilted too much.
3. Metal too thick.
4. Worn torch parts
5. Cutting current too low.
6. Non - Genuine Thermal Dynamics parts used
7. Incorrect gas pressure. Line pressure 90-125 psi
(6.2-8.6 bar / 620-862 Kpa.
Main Arc
Extinguishes
1. Cutting speed too slow.
2. Torch standoff too high from workpiece.
3. Cutting current too high.
4. Work cable disconnected.
5. Worn torch parts.
6. Non - Genuine Thermal Dynamics parts used
7. Line voltage drop due to extension cord or supply
line being too long.
Excessive
Dross
Formation
1. Cutting speed too slow.
2. Torch standoff too high from workpiece.
3. Worn torch parts.
4. Improper cutting current.
5. Non - Genuine Thermal Dynamics parts used
6. Incorrect gas pressure
Short Torch
Parts Life
1. Oil or moisture in air source.
2. Exceeding system capability (material too thick).
3. Excessive pilot arc time
4. Gas pressure too low.
5. Improperly assembled torch.
6. Non - Genuine Thermal Dynamics parts used
Difficult
Starting
1. Worn torch parts.
2. Non - Genuine Thermal Dynamics parts used.
3. Incorrect gas pressure.
4. Line voltage too low
5. Wrong parts for current selection.
6. Hose restriction.