Thermal Dynamics PakMaster 75XL Plus, Operating Manual

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Manual 0-2746 5-5 SERVICE
2. Fan blocked
a. Check and correct condition.
3. Unit is overheated
a. Allow unit to cool down for about 5 minutes.
Make sure the unit has not been operated be-
yond duty cycle limit.
4. Input line voltage is below 75% of rated level
a. Check and connect to proper input power line.
5. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
C. Torch will not pilot when torch switch is activated
1. RUN / SET / LATCH switch in SET position
a. Move switch to RUN position.
2. Faulty torch parts
a. Inspect torch parts and replace if necessary (re-
fer to Instruction Manual supplied with torch).
3. Gas pressure too high or too low
a. Set pressure to 60 - 75 psi / 4.1 - 5.2 bar.
4. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
D. No cutting output; AC Power indicator ON; Fans
operating
1. Torch not properly connected to power supply
a. Check that torch leads are properly attached
to power supply.
2. Shield cup not properly installed on torch
a. Check that shield cup is fully seated against
torch head (do not overtighten if screwed on).
3. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
4. Faulty Torch
a. Return for repair or have qualified technician
repair per Torch Instruction Manual.
E. Low cutting output with no control
1. Incorrect setting of CURRENT (A) control
a. Check and adjust to proper setting.
2. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
F. Limited output with no control
1. Poor input or output connections
a. Check all input and output connections.
2 Incorrect setting of CURRENT control
a. Check and adjust to proper setting.
3. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
G. Erratic or improper cutting output
1. Poor input or output connections
a. Check all input and output connections.
2. Incorrect type and size cable on input or output
a. Use proper type and size cables.
H. Fans not operating; AC Power indicator ON;
Cutting output available
1. Fan blades blocked
a. Check and clear blades.
2. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
I. No gas flow; AC POWER indicator ON; Fans
operate
1. Gas not connected or pressure too low
a. Check source for at least 70 psi / 4.8 bar.
2. Gas supply pressure too high
a. Set to maximum of 125 psi inlet pressure.
3. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
J. Torch cuts but not adequately
1. Drag circuit active
a. Lift tip from work piece.
2. Current (A) set too low
a. Increase current setting.