PLASMA CUTTERS Model Nos.
For wiring diagrams and parts lists, please refer to the accompanying booklet. SPECIFICATIONS King35N King55 230V 230V IPH 1PH 50/60HZ 50/60 HZ Max. Input Current (230V) 26A 42A Max. Input Current (400V) - - T20A (230V) T36A (230V) 4MM 10MM No. Current Settings 1 2 Working Air Pressure 5 to 5.5 BAR 5 to 5.5 BAR 100 L/MIN 105 L/MIN IP21 IP21 H H 30KG 50KG 200x470x360 456x580x710 Supply Voltage No.
Thank you for purchasing this CLARKE Plasma Cutter. Before attempting to operate this machine, please read this leaflet thoroughly and follow the instructions carefully, in doing so you will ensure the safety of yourself and that of others around you, and you can look forward to the Plasma Cutter giving you long and satisfactory service. GUARANTEE This CLARKE product is guaranteed against faulty manufacture for a period of 12 months from the date of purchase. Please keep your receipt as proof of purchase.
ELECTROMAGNETIC INTERFERENCE (EMC) Whilst this unit complies with EMC regulations, the user is responsible for installing and using the welding equipment according to the manufacturers instructions. If electromagnetic disturbances are detected then it shall be the responsibility of the user of the welding equipment to resolve the situation. In some cases this remedial action may be as simple as earthing the welding circuit, see ‘Note’.
take additional precautions such as filtering of the mains supply. Consideration should be given to shielding the supply cable of permanently installed welding equipment, in metallic conduit or equivalent. Shielding should be electrically continuous throughout its length. The shielding should be connected to the welding power source so that good electrical contact is maintained between the conduit and the welding power source enclosure. 2.
SAFETY PRECAUTIONS WARNING: As with all machinery, there are certain hazards involved with their operation and use. Exercising respect and caution will considerably lessen the risk of personal injury. However, if normal safety precautions are overlooked, or ignored, personal injury to the operator may result.
C) Fire and explosion prevention Causes of fire and explosion are: 1) combustibles reached by the arc, flame, flying sparks, hot slag or heated material; 2) misuse of compressed gases and cylinders; 3) short circuits. BE AWARE THAT flying sparks or falling slag can pass through cracks, along pipes, through windows or doors, and through wall or floor openings, out of sight of the goggled operator. Sparks and slag can fly 10m.
ADDITIONAL SAFETY PRECAUTIONS FOR PLASMA CUTTERS The safety precautions given previously must be strictly adhered to. The following precautions are additional to, and focus specifically on Plasma Cutters. ✔ALWAYS have a fire extinguisher handy when operating the cutter.
WHAT IS PLASMA CUTTING Plasma Cutting is a fast, clean and distortion free, means of cutting through all types of metal from mild and stainless steels to aluminium brass and copper. The process relies upon the chemical reaction of a gas or mixture of gases, such as air, when subjected to very high temperatures. The gas ionises, i.e. negative electrons are separated from the atom, leaving the atom positively charged. In this ionised state, the gas is electrically conductive and is called ‘plasma’.
MAIN COMPONENTS The power generator is essentially made up of a transformer, a rectifying unit and an electronic board. The latter controls the unit safeguards and governs the work cycles of the various components which make up the unit, such as the solenoid valve, the power contactor, etc. Fig.
GENERAL LAYOUT KING 35N - FRONT PANEL Fig. 2 Warning Lamps KING 55 - FRONT PANEL Fig.
ELECTRICAL CONNECTIONS Connect the mains lead, through a suitably fused isolator switch, to a 230 Volt (50Hz) electrical supply, having a fuse rating in accordance with that given in the specification chart on page 2. A standard 13 Amp plug MUST NOT be used with this machine.
ASSEMBLY AND OPERATION On receipt, check the unit for any damage which may have occurred during transportation. You should immediately report such damage to the Clarke dealer from whom the unit was purchased. A. KING 35N This model is fully assembled. B. KING 55 (i) Insert the handle tube into the handle ends, then screw the ends to the housings, using the two hex socket head screws provided, ensuring the locating pegs are correctly located, .
position, by pushing it in. 3. Fig. 5 Fasten the earth clamp to the workpiece. If a metal bench is being used, make sure it has also been connected to earth by means of a cable with an adequate cross- section. If the surface of the piece to be cut is painted, rusty of covered with insulating material, clean the surface so that satisfactory contact between the workpiece and the earth clamp can be obtained. 4.
CAUTION: During cutting, the speed of torch movement should correspond to the thickness of the workpiece. Moving too quickly causes a return of incandescent scale towards the torch, which shortens the life span of the parts most subject to wear and tear. The build up of scale on the nozzle should be removed as soon as possible. 10. During cutting, rest the nozzle perpendicularly on the surface to be cut without exerting any force.
MAINTENANCE A. THE BASE UNIT If any fault develops, it must repaired by a qualified technician only. Contact your CLARKE dealer for advice. Maintenance of the unit is limited to the following. 1. If the machine is in constant use, inspect every 3-4 months, and use dry compressed air to remove any dust deposit. Ensure all precautions are taken with regard to the use of compressors to clean the electronic components. 2. Check the air filter regularly.
should be renewed. 4. Check to ensure the holes in the protective ring are clear. Blocked holes or a damaged ring may damage the torch due to overheating. 5. Check the condition of the torch sheath, ensuring that no parts are worn or cut, or there are no signs of electrical discharge. A damaged sheath should be renewed. TROUBLE SHOOTING 1. PLASMA CUTTER DOESN’T WORK Check the indicator lamps on the front panel. If Green light is OFF, check power cable and electrical input - fuse etc.
