Insufficient penetration or excessive slag.
Interruption of cutting arc.
The torch is cutting at an angle when you wish
it to be perpendicular.
Excessive wear of nozzle and electrode.
Too high a cutting speed.
Torch is too tilted.
Workpiece is too thick.
Electrode and nozzle are worn out.
Cutting speed too low.
Excessive distance between torch and workpiece.
Electrode is worn out.
Intervention of the protection system.
Torch position not correct.
Asymmetric wear of nozzle hole and/or wrong assembly
of torch parts.
Air pressure too low.
Contaminated air (humidity-oil).
Excessive pilot arc ignitions.
Nozzle holder damaged.
PROBLEM
POSSIBLE CAUSE
REMEDY
8. TROUBLESHOOTING
Slow the cutting speed.
Adjust the torch tilt.
Confirm workpiece thickness, and re-check technical data.
Replace electrode and nozzle.
Increase cutting speed.
Decrease the distance between torch and workpiece.
Replace electrode and nozzle.
Check warning lights and take appropriate action.
Re-align the torch position.
Check assembly (see fig. 5) and change nozzle if necessary.
Increase air pressure (see para. 5.5.).
Check air supply system (see Section 4).
Do not casually turn the torch on and off.
Change the nozzle holder.
7.3.
Torch
Check torch regularly. Maintenance is essential for correct and safe operation. Maintenance intervals
will depend on frequency and type of use and.
p
WARNING!
Ensure the torch is cool before attempting any maintenance.
Always re-assemble the torch
in the correct order - electrode, distributing ring and nozzle, before the nozzle holder.
Never use tools to tighten nozzle components, hand tighten only.
7.3.1. Manually dismantle the torch nozzle head (fig. 5).
Items 2 and 4 show both standard and optional (long)
nozzles and electrodes (see Parts List).
7.3.2. Nozzle holder (fig. 5.1).
Clean nozzle holder and check to ensure it is not damaged (distorted, burnt or cracked). If in any doubt, replace.
7.3.3. Nozzle (fig. 5.2).
If surface is oxidised clean with extra fine abrasive paper. Check wear of the plasma arc hole and the inner
and outer surfaces. If hole has widened, or nozzle is otherwise damaged, replace.
7.3.4. Air distributing ring (fig. 5.3).
Check that the ring is not burnt or cracked and that airflow holes are not obstructed. If damaged, replace.
7.3.5. Electrode (fig. 5.4).
Replace the electrode when the crater on the emitting surface is 2mm in depth (fig. 6). It is recommended
that the electrode and nozzle are changed at the same time.
7.4.
Compressed air filter
The filter of the regulator/filter (see para. 4.2.) removes condensation and dirt
particles from the compressed air, and must be kept clean.
7.4.1. Regularly inspect the filter. If the glass bowl contains water, drain by pushing
the drain plug upwards (see enclosed regulator/filter instructions).
7.4.2. When the filter cartridge becomes dirty, replace.
7.4.3. Clean the filter bowl with soapy water only. Do not use abrasives or solvents.
fig. 5
fig. 6
9. DECLARATION OF CONFORMITY
Declaration of Conformity
We, the sole importer into the UK, declare that the product listed below is in conformity with the following
standards and directives.
The construction file for this product is held by the Manufacturer and may
be inspected, by a national authority, upon request to Jack Sealey Ltd.
For Jack Sealey Ltd. Sole importer into the UK of Sealey Power Welders.
PLASMA CUTTER Model: PP30
73/23/EEC Low Voltage Directive
89/336/EEC EMC Directive
Signed by Mark Sweetman
13th September 2001
9.1. THIS EQUIPMENT IS IN CONFORMITY WITH THE EUROPEAN STANDARD EN 50199 : - ELECTROMAGNETIC COMPATIBILITY
OF ARC WELDING EQUIPMENT AND SIMILAR PROCESSES (e.g. ARC AND PLASMA CUTTING)
9.2.
Protection against interference. (E.M.C.)
The emission limits in this standard may not, however, provide full protection against
interference to radio and television reception when the equipment is used closer than 30m to the receiving antenna. In special cases,
when highly susceptible apparatus is being used in close proximity, additional mitigation measures may have to be employed in order
to reduce the electromagnetic emissions. At the same time there could occur some potential difficulties in having electromagnetic
compatibility in a non-industrial environment (e.g. in residential areas. Therefore it is most important that the equipment is used and
installed according to the following instructions.
9.3.
Installation and use.
The user is responsible for installing and using the equipment according to these instructions. If electromagnetic
disturbances are detected, then it shall be the responsibility of the user of the equipment to resolve the situation with the technical
assistance of the supplier. In some cases this remedial action may be as simple as earthing the circuit (see Note * ). In other cases it
could involve constructing an electromagnetic screen, enclosing the welding power source and the work, complete with associated input
filters. In all cases the electromagnetic disturbances shall be reduced to the point where they are no longer troublesome.
Note * :
The welding/cutting circuit may or may not be earthed for safety reasons. Changing the earthing arrangements should only be
authorised by a person who is competent to assess whether the changes will increase the risk of injury, e.g. by allowing parallel welding
circuit return paths which may damage the earth circuits of other equipment. Further guidance is given in IEC 974-13, Arc welding
equipment - Installation and use. (under preparation).
PP30 - 1 - 130901
