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trigger  is  pulled,  indicating  cutting  current  is 
activated. 

PROTECTION INDICATOR LIGHT 

When  the  unit  is  in  thermal  overload,  is  over 
voltage or lacking voltage, the indicator will be 
on and cutting output will stop. Leave the unit on. 
When  the  unit  is  cooled  down  and/or  voltage 
stabilizes, the Protection Indicator Light will turn 
off  and  the  unit  will  automatically  start  output 
again. 

LOW AIR INDICATOR LIGHT 

This light will be on when the air pressure or air 
flow is low.

 

CURRENT ADJUSTMENT 

Variable  adjust  the  output  cutting  current.  The 
higher  output  matches  the  thicker  metal.  The 
maximum  cutting  thickness  is  up  to  11/16″  for 
this unit. Please note that the maximum cutting 
thickness varies depending on the material type 
you  are  cutting.  See  the table  on  the  previous 
page  for  reference.  When  operating  on  120V 
power,  the  output  amperage  is  limited  to  20A 
only. Adjust the output current adjustment to 20A. 

GROUND CABLE AND CLAMP 

The ground cable clamp connects to your work 
piece completing the electrical circuit. Without a 
clean, rust and paint free connection, the arc will 
not transfer from Pilot Arc to Cutting Arc. 

PLASMA TORCH AND CABLE

 

The  torch  delivers  compressed  air  and  output 
power that is needed to create the plasma arc. 

AIR HOSE CONNECTION 

The gas hose connection is on the back panel of 
the plasma cutter. This connection requires a 1/4” 
inch NPT connection (Not supplied). The other 
end  of  the  air  hose  connects  to  an  air 
compressor  or  compressed  air  supply.  This 
model now comes equipped with an internal air 
water separator. 

POWER SWITCH 

The  Power  Switch  allows  input  power  to  the 
machine  components.  After  the  machine  is 
connected to the input power supply, turn on this 
switch. The  power  indicator  on  the  front  panel 
will turn on. 

POWER CORD AND PLUG 

Plug this unit into a 230V, 50A circuit breaker 
power supply when operating on 230V. If 
running on 120V power using the supplied 
120V power cord adapter, plug this unit into a 
120V, 20A circuit breaker power supply. 

INSTALLATION 

 

• High voltage danger from power source! 
Consult a qualified electrician for proper 
installation of receptacle. This cutter must 
be Grounded while in use to protect the 
operator from electrical shock. 
• Do not remove grounding prong or alter 
the plug in any way. Use only the supplied 
adapter between the plasma cutter's power 
cord and the power source receptacle. Make 
sure the POWER switch is OFF when 
connecting your plasma cutter's power cord 
directly to a properly grounded 230 VAC, 60 
HZ, Single Phase, 50 Amp input power 
supply. Or, when using the supplied 
adapter, connect the 120V Adapter to a 
properly grounded 120V, 20 Amp input 
power supply.

 

 

1.  POWER REQUIREMENT 230V - AC 

single phase 230V (200-240V) 50/60 

HZ fused with a 50A time delayed fuse 

or circuit breaker is required. DO NOT 

OPERATE THIS UNIT if the ACTUAL 

power source voltage is less than 215 

volts AC or greater than 240 volts AC. 

2.  POWER REQUIREMENT 120V - AC 

single phase 120V (110-130V) 50/60 

HZ fused with a 20A time delayed fuse 

or circuit breaker is required. DO NOT 

OPERATE THIS UNIT if the ACTUAL 

power source voltage is less than 110 

volts AC or greater than 130 volts AC. 

a.  When connecting this unit to 

120V power, connect the 120V 

adapter cord to the power cord 

pigtail that is attached to the 

machine. 

Summary of Contents for MPPC70DV

Page 1: ...A CUTTER OWNER S MANUAL 11 2019 WARNING Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating Failure to follow the safety rules and other basic safety precautions may result in serious personal injury MPPC70DV ...

Page 2: ...cover are considered consumable items and are not covered under warranty 1 Year Accessories Warranty Parts and Labor on MIG gun parts except those listed under normal wear items cables regulator and plasma torch except those listed under normal wear items are covered for 1 year Any shipping related to warranty repair is the responsibility of the customer 2 Year Welder Warranty The 2 year warranty ...

Page 3: ...fied technician in accordance with local state and national codes Always be aware of your work environment Be sure to keep other people especially children away from you while you are cutting Keep harmful arc rays shielded from the view of others Mount the plasma cutter on a secure bench or cart that will keep the plasma cutter secure and prevent it from tipping over or falling 1 2 Your Plasma Cut...

Page 4: ... air and can result in injury or death Do not breathe in fumes emitted by the plasma cutting process Make sure your breathing air is clean and safe Work only in a well ventilated area or use a ventilation device to remove plasma cutting fumes from the environment where you will be working Do not plasma cut on coated materials galvanized cadmium plated or containing zinc mercury or barium They will...

Page 5: ... or shield a welder s hat and ear plugs to keep sparks out of ears and hair Electromagnetic Field Electromagnetic fields can interfere with various electrical and electronic devices such as pacemakers Consult your doctor before using any plasma cutting device Keep people with pacemakers away from your plasma cutting area while cutting Do not wrap cable around your body while plasma cutting Wrap pl...

Page 6: ...Output Range 120V 15A 23A 230V 15A 45A Duty Cycle 120V 35 23A 230V 40 45A Compressed Air Required 4 5 CFM 60psi DO NOT SUPPLY MORE THAN 100psi Dimensions 18 58 x 7 32 x 13 46 Weight 22 93 lbs DESCRIPTION The Matco Tools MPPC70 is a Dual Voltage DC Inverter Plasma Cutter It uses new state of the art technology The output can be adjusted from 15 to 45 Amps This unit is designed to cut up to 11 16 st...

Page 7: ...timal setting for a more exact cut AIR PRESSURE ADJUSTOR It is used to adjust the air pressure The air pressure can be read from the air pressure display on the back panel Normally when operating on 230V power the pressure should be adjusted between 50 80psi When operating on 120V power the pressure should be adjusted between 45 65 psi POWER INDICATOR LIGHT This light will turn on when the input p...

Page 8: ...al air water separator POWER SWITCH The Power Switch allows input power to the machine components After the machine is connected to the input power supply turn on this switch The power indicator on the front panel will turn on POWER CORD AND PLUG Plug this unit into a 230V 50A circuit breaker power supply when operating on 230V If running on 120V power using the supplied 120V power cord adapter pl...

Page 9: ...onnection See Figure 3 c Connect the Grounding Cable to the ground connection See Figure 3 d Connect the Ground Clamp to your workpiece e Connect your compressed air source to the air connection on this unit s back panel Figure 3 OPERATION High voltage danger from power source Consult a qualified electrician for proper installation of receptacle at the power source This plasma cutter must be groun...

Page 10: ...be sure it is consistent e Pull the torch trigger The cutting operation begins after the cutting plasma pilot arc is made 2 CUTTING OPERATION 2 1 Metal Sheet Cutting a Put the torch s nozzle at the start of the work piece Turn on the torch switch to ignite the plasma pilot After the work piece is cut through move the torch along the cutting direction uniformly The cutting speed is determined by wa...

Page 11: ...lasses and gloves while operating c Work only in well ventilated areas If necessary use exhaust ventilation fans to keep fumes or emissions away from the breathing zone d Do not touch the work piece while cutting e Do not cut pipes containers or other materials that contain or have ever contained flammable or explosive materials f Do not work underwater or in wet moist environments g Do not bend t...

Page 12: ...he torch will need to be replaced Install an air dryer to your compressed air supply to prevent corrosion of the torch head Arc start circuit defective For assistance contact Matco customer service at 855 920 2399 Control circuit board is defective Replace control circuit board Control transformer defective Replace control transformer Have pilot arc but cutting arc does not ignite Work piece is pa...

Page 13: ...Page 13 of 16 2004058 12 MAIN CIRCUIT DIAGRAM ...

Page 14: ...Page 14 of 16 2004058 12 PARTS DIAGRAM ...

Page 15: ...PLATE 1 16 165400017 FRONT REAR BEZEL 1 17 105400071 AMPERAGE ADJUSTMENT POTENTIOMETER 1 18 165400024 FACE PLATE SUPPORT 1 19 165400025 FRONT PANEL SUPPORT 1 20 105400154 GROUND CONNECTORY COVER 1 21 165400026 TORCH CONNECTOR 1 22 165400027 FACE PLATE PCB 1 23 165400028 COPPER TERMINAL 1 24 105400058 GAS SOLENOID VALVE 1 25 165400029 PRESSURE SWITCH 1 26 165400030 AC REACTOR 1 27 165400031 VALVE C...

Page 16: ...Page 16 of 16 2004058 12 Distributed by Matco Tool 4403 Allen Road Stow OH 44224 ww w m a t c o t o o l s c o m Made in China to Matco specifications ...

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