HUSKY CUT20P 20A Plasma Cutter User Guide

Item # 100 695 8748
Model # CUT20P

USE AND CARE GUIDE

HUSKY 20A PLASMA CUTTER
Questions, problems, missing parts?
Before returning to the store, call
Husky Customer Service
8 a.m. – 7 p.m., EST, Monday-Friday
9 a.m. – 6 p.m., EST, Saturday
1-888-43-HUSKY
HUSKYTOOLS.COM
THANK YOU
We appreciate the trust and con dence you have placed in Husky through the purchase of this plasma cutter. We strive to continually create quality products designed to enhance your home. Visit us online to see our full line of products available for your home improvement needs. Thank you for choosing Husky!

Safety Information

WORK AREA SAFETY
WARNING: Operating the machine without preparation and caution can cause death, injury to yourself or bystanders. To reduce the risks, the operator should read, understand and follow the safety instructions. Bystanders in the area should also follow the safety instructions under the guidance of operator.

• Ensure your work area is clean and well lit.
• Keep the machine on a stable and clean surface while operating.
• Keep children, bystanders and visitors away while operating machine. Distractions can cause you to lose control.
• Do not operate machines in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Flying sparks during cutting may ignite the dust or fumes.
• Do not leave energized machine unattended. Always turn off the machine before servicing parts, replacing components or when the machine is not in use.

PERSONAL SAFETY
WARNING: Cutting processes generate high-temperature arc, flying sparks, hot metal and hot spatters. Cutting arc generates extremely intense ultraviolet and infrared light.
Failure to wear protective equipment during cutting can  severely damage your eyes and burn your skin. To reduce the risks, the operator should read, understand and follow
the safety instructions. Bystanders in the area should also follow the safety instructions under the guidance of operator.
WARNING: Cutting processes generate fumes, gases and vapors which can cause discomfort, illness and death. To reduce the risks, the operator should read, understand and follow the safety instructions. Bystanders in the area should also follow the safety instructions under the guidance of operator.

• Do not operate without proper protection. Flying sparks can cause burn injury. Always wear protective clothing and face shield. The intensive light of the electrical arc can also burn skin. Ensure to wear closed-toe shoes, gloves and clothing with heavy material, long sleeves and collar.
• Do not look at an electric arc without proper eye protection. An electric arc is extremely bright and intense which can burn the eye retina and cause permanent damage when equipped with inadequate or no eye protection.
• Do not operate in a confined areas without adequate ventilation. Otherwise, wear an air-supplied respirator.
• Remind bystanders before striking a plasma arc and make sure they are at a safe distance and aware of coming intensive plasma arc.
• Make sure you are in a proper position while operating the machine. Do not overreach. Keep proper footing and balance at all times, which enables better control of the machine in unexpected situation.
• Stay alert when operating a plasma cutting machine. Do not use a machine while you are tired or under the influence of drugs, alcohol or medication. Avoid unintentional starting.
• Before disassembling plasma torch, removing shield cup or changing plasma torch consumables, be sure to disconnect the input power cable after turning off machine.
• Make sure you read the user manual and are well prepared before cutting.

ELECTRICAL SAFETY
WARNING: Improper use of plasma cutting machine will cause electric shock. Electric shock can kill. To reduce the risks, the operator should read, understand and follow the safety instructions. Bystanders in the area should also follow the safety instructions under the guidance of operator.
WARNING: After removing the input power, there will be significant DC voltage existing on internal parts. Do not touch inside of the machine right after disconnecting the
input power cable (turning off unit is not enough). Please allow sufficient time for capacitors to discharge to zero voltage (check with a volt meter).

• Do not expose the plasma cutter to rain or come in contact with a wet surface. Water entering a machine will increase the risk of electric shock.
• Do not make physical contact with any cutting current circuits which includes the electrode or cutting tips, ground clamps, workpieces or any metal parts/conductive materials in contact with electrode holder/workpieces.
• Do not make contact with any grounded metal surfaces suchas metal pipes, radiators and refrigerators. There will be an increased risk of electric shock when your body is grounded.
• Ensure power is disconnected before setting up the machineor working on services.
• Do not abuse any cords. Never carry, pull or unplug the machine by its cord. Keep any cords away from heat, oil, sharp edges or moving parts. Damaged or entangled cords could increase the risk of electric shock.
• Inspect the machine before using it. Do not operate if you observe any damaged and cracked parts, including but not limited to damaged/cracked cables, ground clamps and so on. Replace them before using the machine.
• Use an extension cord (specific for outdoor use) when operating a machine outdoors.
• Do not point plasma torch at people when torches are energized.
• Do not cut in damp area or when cutting equipment is in contact with water or wet surface.
• Do not cut when body or clothes are wet.

FIRE PREVENTION
WARNING: Failure to protect combustible materials against cutting sparks, hot spatters, hot metal, and hot equipment can cause fire and even explosion. Fire and explosion can cause death, injury and property damage. To reduce the risks, please read, understand and follow the safety instructions.

• Check the area before cutting. Ensure the work area is checked and cleared of combustible and flammable materials. A minimum distance of 35 feet (10 meters) is required between work area and combustibles because 35 feet is an average distance cutting sparks can fly. If the minimum 35 feet distance requirement cannot be met, protect consumable/flammable materials with fire resistant covers or shields.
• Do not cut on or near materials with combustible coating or combustible internal substance, such as materials in walls or ceilings, without any approved methods to eliminate the hazard.
• Do not cut in areas (such as gas station) where the air may contain flammable substances such as combustible dust, gas, or liquid vapors.
• Do not wear gloves, hair preparations, shoes and other clothing that contains oil, grease, or other flammable substances. Wear fire-resistant protective clothing to protecupper and lower body against fire and heat. Protective clothing includes but is not limited to leather gloves, heavy long sleeve and cuffless shirts, heavy and cuffless pants, high-topped shoes and helmet.
• Do not dispose of hot metal in containers holding combustible materials. Keep a fire extinguisher nearby and know how to use it.
• Overuse can cause overheating. Follow rated duty cycle and allow cooling period.
• Follow requirements in OSHA and NFPA for hot work and have an extinguisher nearby.
• When finished cutting, do not leave without a check for evidence of potential fie. Overlooked smoke or flame have risks to cause fire hazard. Check and make sure the cutting areas are free of sparks, hot metal, and flames before leaving the cutting area.

USE AND CARE

• Ensure you choose the right plasma cutting machine model and cutting recommendation for your application. Use the plasma cutting machine and accessories in compliance with these instructions. Operating a plasma cutting machine under improper conditions could cause unpredictable safety issues.
• Disconnect the power cord from the power source before making any adjustments, changing accessories, or storing plasma cutters.
• Store idle plasma cutting machine out of reach of children. Do not allow people who are unfamiliar with the machine and operational instructions to operate it. Ignorance of any safety instructions or operational guidance will result in potential safety risk.
• Replace damaged parts immediately before use. Many accidents are caused by poorly maintained machines.
• Use the plasma cutting machine and accessories in accordance with these instructions and in the manner intended for the particular type of plasma cutting machine, taking into account the working conditions and the work to be performed. Use of the plasma cutting machine for operations different from those intended could result in a hazardous situation.
• Have your plasma cutting machine serviced by a qualified service person if you encounter problems.

ELECTRIC ARC
CAUTION: High frequency and electromagnetic energy generated from the cutting process could cause damage to your electronical devices. To reduce the risks, please read,
understand and follow the safety instructions.

• Follow manual to install and ground machine. Be sure nearby equipment is compatible with electromagnetic energy.
• Electronic products such as computer, computer-driven equipment and communication equipment can be interfered or even harmed by electromagnetic energy. Users with pacemakers should consult with their physician before using a plasma cutting machine because a pacemaker can be damaged by electromagnetic energy if exposed to it.
• It is the user’s responsibility to have a qualified electrician promptly correct any interference problem resulting from installation or operation of the machine. The machine should be regularly inspected and maintained. If necessary, shield the work area or move the machine.
• The warnings, cautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations. It must be understood by the users that common sense and caution are factors which cannot be built into this product, but must be provided by the operator.

Warranty

3 YEAR LIMITED WARRANTY
If this Husky product ever fails due to a defect in material or workmanship, return the product to any Home Depot retail store for replacement with an item of equal or greater value. This warranty excludes incidental / inconsequential damages due to misuse, abuse, or normal wear and tear. This warranty gives you specific rights, and you may also have other rights, which vary from state to state. Please see store or call 1-888-43-HUSKY for details.

Pre-operation

20A @ 35% (with 20A Plug)
Cutting Current Ranges| 10A – 16A (with 15A Plug)
10A – 20A (with 20A Plug)
Cutting Capacity| 1/4 in. (Quality cut); 5/16 in. (Maximum cut)

SYMBOLS

PACKAGE CONTENTS

Operation Instruction

1 Preparing for Cutting

• Designate a work area that is clean and well lit. Keep children and pets out of the work area.
• Read the user manual and safety guidelines before operating the machine.
• Ensure you understand the basic specification of your machine.
• Wear PPEs to protect your eyes and skin from hot sparks and intensive arc rays. Ensure same protections are provided to any bystanders nearby.
• Ensure all the combustible, flammable, hazardous substances are removed from the work area. Make sure a fire extinguisher within reach is available.
• Inspect your machine before each use and do not operate a machine with damaged cables and components. Replace all damaged parts before use. Have a qualified technician to help you if needed.
• NOTE: The plasma cutting machine doesn’t include a built-in air compressor, so a source of clean and dry air/nitrogen must be supplied to the plasma cutting machine during operation.
• NOTE: Although the plasma cutting machine has a built-in air filter/dryer, an additional air filter/dryer may be needed if in a very humid environment.

WARNING: Cutting processes generate hightemperature arc, cutting sparks, hot metal and hot spatters. Cutting arc generates extremely intense ultraviolet and infrared light.
Failure to wear protective equipment during cutting can severely damage your eyes and burn your skin.
WARNING: Failure to protect combustible materials against cutting sparks, hot metal and hot spatters can cause fire and even explosion. Fire and explosion can cause eath, injury and property damage.
2 Setting Up for Cutting

• Ensure a source of clean and dry air/nitrogen is connected to the plasma cutting machine.
• If in very humid environment, install an additional filter/dryer in the inlet of the air supply line.
• Ensure your workpiece is clean and dry; make sure the ground clamp has a good connection to the workpiece.
• Connect the plasma torch to the plasma torch cable socket (F).
• Switch the ON/OFF power switch (K) to ON.
• Adjust amperage adjustment knob (E) and set to the target output current.
• Press the control switch on the plasma torch handle to start cutting; the cutting indicator (B) will illuminate while the control switch is on.
• When cutting is complete, release the control switch to turn off the plasma torch.
• NOTE: Ensure to disconnect the power cable and wait for the plasma torch to cool down after each use.

Cutting Recommendation Table

Material| Amp| Thickness
(Quality Cut)| Thickness
(Maximum Cut)
Steel| 20Ab| 6 mm| 8 mm
16A| 4-5 mm| —
10A| 2 mm| —

Maintenance

• Before each use, inspect the general condition of the machine. Check for loose screws, cracked or broken parts, damaged circuit wiring or cables, and any other potential risks that may cause safety issues.
• After each use of the machine, clean external surfaces of the machine with clean cloth.
• Periodically clean the machine using compressed air to blow out all dust and debris from the interior.
• If retaining cup is cracked, burned through, chipped or no longer round, replace it before operating the plasma torch.
• If the cutting tip orifice becomes damaged or enlarged, replace it before operating the plasma torch.
• If electrode’s emitting surface is pitted more than 1/16 in., replace it before operating the plasma torch.
• If the unit continuously shuts down due to thermal overload, please turn off the machine and have a qualified electrician to inspect the machine and repair it.
• If consumable parts’ exteriors are oxidized, use an extra-fine abrasive cloth to clean.
• Store the machine and accessories in a clean and dry location out reach of children.

Troubleshooting

NOTE: When yellow tripped protection/alert indicator turns on, the possible causes are 1) tripped overheat protection; 2) tripped overvoltage protection; 3) missing outer nozzle alert; 4) missing inner nozzle and electrode tip alert. Please refer to a qualified electrician to check your machine.

attached to the workpiece.
No input power supply.| Check and make sure machine is plugged in. Verify outlet output power.
Check the circuit breaker to see whether it is tripped or not. Reset if necessary.
No output when switched on and indicator LED is illuminated.| Tripped thermal protector by overheating (tripped protection/alert indicator LED turns on).| Reduce the duration of the cutting period, or duty cycle, or duration of use.
Check whether the fan inside the cutter is working properly.
Overheating caused by environmental factor (high room temperature or insufficient air flow).| Relocate to a cool working environment.
Check whether there is obstruction blocking air flow in the room. Clear the obstruction if needed.
Incorrect input voltage.| Check the outlet voltage.
No gas flows.| Plugged nozzle.| Clean the nozzle. Replace with a new one if damaged.
Blocked air supply hose.| Check the air supply hose (including the part inside the cuffing torch cable).
The arc does not ignite.| Poor ground clamp connection.| Check connection of ground cable to ensure it is well connected.
Too low input power.| Make sure your power source provides enough amperage or reduce the length of your extension cord.
Insufficient cutting penetration.| Output current is too low.| Increase the cutting current by adjusting the amperage adjustment knob.
Make sure your power source provides enough amperage or reduce the length of your extension cord.
Workpieces are too thick.| Choose workpieces within the operational limits of the cutting machine.
Cutting speed is too fast.| Decrease your torch travel speed.
During cutting process, plasma torch is too tilted.| Ensure your plasma torch is perpendicular to the workpiece when cutting.
Plasma torch consumable parts are worn out| Check consumable parts for wear and replace worn parts.
Poor cut quality.| Improper operation.| Please read the user manual and ensure proper use of plasma torch and machine.
---|---|---
Worn or damaged plasma torch parts.| Check consumables for wear and replace worn parts.
Moisture or oil in air supply.| Examine your air compressor and make sure it is in a good working condition.
Install a moisture filter at the inlet of the machine’s air supply line.
Excessive slag or dross.| Too low cutting current.| Make sure your power source provides enough amperage or reduce the length of your extension cord.
Improper cutting speed (too low or too fast).| For excessive top slag/dross, decrease your cutting speed.
For excessive bottom slag/dross, increase your cutting speed.
Plasma torch parts are worn out.| Check consumables for wear and replace worn parts.
Inferior or unmatched parts.| Use genuine manufacturer parts for optimum performance.
Unstable cutting arc.| Poor ground clamp or plasma torch connection.| Check connection of ground cable or plasma torch and make sure they are well connected.
Too low input power.| Make sure your power source provides enough amperage or reduce the length of your extension cord.
Plasma torch parts are worn out.| Check consumables for wear and replace worn parts.
Too low cutting speed.| Increase your torch travel speed.

Service Parts

ASSEMBLY DIAGRAM

Questions, problems, missing parts? Before returning to the store, call Husky Customer Service
8 a.m. – 7 p.m., EST, Monday-Friday, 9 a.m. – 6 p.m., EST, Saturday
1-888-43-HUSKY
HUSKYTOOLS.COM
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