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14

Maintenance 

 

 

Routine and periodic maintenance 

 
 

 

WARNING! 

 

 
 ELECTRIC SHOCK CAN KILL 
 
 

Turn the input power OFF at the mains switch & fuse box and remove mains plug from socket 
before working on this equipment. 
 
Have a qualified electrician install & service this Plasma cutting equipment. 
 
Allow machine to sit for 5 minutes minimum after disconnection from mains power to allow the 
power capacitors to discharge before working inside this equipment. 
 
Do not touch electrically live parts 
 

1.  Periodically (3-6 months depending on use / environment), remove the side/top panels of 

machine and clean out machine with a low pressure dry air line paying particular attention 
to PC Boards, Fan blades and switchgear 
 
Failure to maintain plant can void manufacturers warranty. 
 

2.  Inspect input and output cables & hoses for fraying and cuts, replace if damaged present 

 

3.  Keep cutting torch and earth cables in good condition 

 

4.  Clean air vents to ensure proper air flow and cooling 

 

5.  The fan motor has sealed bearings which requires no maintenance 

 

 

 

 

 

 

Summary of Contents for PLASMA 40HF

Page 1: ...PLASMA 40HF INVERTER PLASMA CUTTER OPERATION INSTRUCTIONS Distributed by www weld tech co za sales weld tech co za ...

Page 2: ...2 ...

Page 3: ...uture reference This information can be found on data plate at rear of machine Product Plasma 40HF Serial No ___________________________________ Date of Purchase _____________________________ Where Purchased _____________________________ Whenever you request replacement parts or information on this equipment please always supply information you have recorded above This product is covered by 2 year...

Page 4: ...esses within its output capacity of 40 Amps DC Equipment Limitations The R Tech Plasma 40HF is protected from overloads beyond the output ratings and duty cycle as per machine specifications with thermostat protection of the output coils and rectifiers Cutting Capability Duty Cycle The R Tech Plasma 40HF is rated at 40 Amps at 60 duty cycle on a ten minute basis If the duty cycle is exceeded a the...

Page 5: ...xcessive operating temperatures which can lead to plant failure Grinding Do not direct grinding particles towards the plasma cutter An abundance of conductive material can cause plant failure Stacking This machine cannot be stacked Transport Unloading Never underestimate the weight of equipment never move or leave suspended in the air above people Use recommended lifting equipment at all times WAR...

Page 6: ...uld minimize problems 1 Keep the welder input power lines as short as possible and enclose as much of them as possible in metal conduit or equivalent shielding There should be a good electrical contact between this conduit and ground Earth 2 Keep the work and electrode leads as short as possible Tape the leads together where practical 3 Be sure the torch and earth leads rubber coverings are free f...

Page 7: ...t comes with a 3 metre mains cable attached Connect wires according to national coding Brown wire Live Blue wire Neutral Green Yellow Wire Earth Ground Connecting to a mains electrical supply THIS MACHINE IS OF AN INDUSTRIAL SPECIFICATION AND MUST BE FITTED TO A 32AMP 240V MAINS INPUT DO NOT RUN ON 13AMP PLUG FAILURE TO RUN ON CORRECT SUPPLY WILL IN VALIDATE WARRANTY Connecting to an Engine Driven...

Page 8: ...ss down knob to secure 2 Air pressure input Screw supplied PCL fitting into regulator ensuring no air leaks You can also fit other connectors to suit your needs 3 2nd Earth connection This can be used to earth the machine to workbench if you are experiencing interference from the HF Sometimes required when using CNC automated machinery Not normally used 4 Mains input cable Fit required plug as per...

Page 9: ...Workpiece via the earth clamp 2 Pilot fuse holder 30A fuse for protection of pilot arc 3 Torch switch socket Connect the torch switch plug 4 pin and screw on retaining ring to secure 4 Pilot lead connector Connect the ring terminal from torch Un screw retainer fit ring terminal onto shaft and refit retainer ensuring it is tight 5 Torch power connector Connect the main torch cable by screw clockwis...

Page 10: ...s the actual cutting amperage 4 Test Gas Cutting selector switch When in the up position this is test gas mode when setting air pressure switch to test gas so you obtain actual air flow cutting pressure When in the down position this is cutting mode you can now start cutting 5 Auto Standard switch When in the down position this is in standard cutting mode this is the normal operating position for ...

Page 11: ...an be dangerous Keep your head out of fumes gases produced from welding Use ventilation or exhaust to remove fumes gases from breathing zone and general area WARNING WELDING SPARKS can cause fire or explosion Keep flammable material away from work area Do not weld on containers that have held combustibles WARNING ARC RAYS can burn Wear eye ear and body protection Make sure work area is protected b...

Page 12: ...ense this and switch to main cutting power Once you come to the end of cut workpiece the machine will sense this and turn off main cutting power and re start the pilot arc If you have now finished cutting release torch trigger and pilot arc will stop Air will continue to flow from torch for a preset time to cool torch consumables 7 Getting correct amperage cutting speed for desired job The combina...

Page 13: ...burns 3 Unscrew the pink ceramic shroud 4 Remove the silver cutting tip 5 Check the condition of cutting electrode replace cutting electrode if tip is worn 1 2 mm and end is concave 6 Fit new cutting electrode by screwing in and tweaking with pair of pliers Do not over tighten as this will cause thread torch head damage 7 Fit new cutting tip by screwing in and tweaking with a pair of pliers Do not...

Page 14: ... working inside this equipment Do not touch electrically live parts 1 Periodically 3 6 months depending on use environment remove the side top panels of machine and clean out machine with a low pressure dry air line paying particular attention to PC Boards Fan blades and switchgear Failure to maintain plant can void manufacturers warranty 2 Inspect input and output cables hoses for fraying and cut...

Page 15: ...e if worn Check pilot arc protecting fuse on front panel of machine and replace if blow If fuse keeps blowing contact R Tech for repair replacement torch Please ensure machine is switched off before checking fuses Check for water in water trap at rear of machine if water is present drain air compressor clean water out of air lines empty water trap by pressing water release button on bottom of air ...

Page 16: ... lines empty water trap by pressing water release button on bottom of air regulator water trap Fit new consumables as per instructions earlier in this manual Plasma Torch Consumables parts list R Tech Torch Spares Plasma 40HF Part No Electrode P40 EL Cutting Tip 1 0mm 40 Amp P40 CT1 Ceramic Cup P40 CC Spring Stand off P40 SS Torch Head Hand Held P40 THH Torch Complete Hand Held 6M P40 6MHHT Plasma...

Page 17: ...17 Wiring Diagram ...

Page 18: ...18 ...

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