Unimac AIRSAWUMCAH16 User manual

AIR METAL SAW

User Manual

[Revision 3.0 October 2018]

RETAIN THIS MANUAL FOR FUTURE REFERENCE

PLEASE READ THIS MANUAL CAREFULLY BEFORE USE

AIR METAL SAW

i

Table of Contents

Safety.................................................................................................................................................................1

Work Area.....................................................................................................................................................1

Personal Safety.............................................................................................................................................1

Air Source.....................................................................................................................................................1

Specific Safety Instructions............................................................................................................................2

Item Details........................................................................................................................................................2

Set-up.................................................................................................................................................................3

Installing Blade..............................................................................................................................................4

Connecting to Air...........................................................................................................................................5

Operation...........................................................................................................................................................6

Work Piece and Work Area Set Up................................................................................................................6

General Operating Instructions......................................................................................................................6

Maintenance ......................................................................................................................................................7

Tool Use and Care........................................................................................................................................7

Cleaning, Maintenance, and Lubrication........................................................................................................7

Troubleshooting ............................................................................................................................................7

Technical Specifications...................................................................................................................................9

Glossary.............................................................................................................................................................9

AIR METAL SAW

1

Safety

To reduce the risks of electric shock, fire, and injury to persons, read all the instructions before using the tool.

Work Area

1. Keep the work area clean and well lighted. Cluttered benches and dark areas increase the risks of electric

shock, fire, and injury to persons.

2. Do not operate the tool in explosive atmospheres, such as in the presence of flammable liquids, gases, or

dust. The tool is able to create sparks resulting in the ignition of the dust or fumes.

3. Keep bystanders, children, and visitors away while operating the tool. Distractions are able to result in the

loss of control of the tool.

Personal Safety

1. Stay alert. Watch what you are doing and use common sense when operating the tool. Do not use the tool

while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating

the tool increases the risk of injury to persons.

2. Dress properly. Do not wear loose clothing or jewellery. Contain long hair. Keep hair, clothing, and gloves

away from moving parts. Loose clothes, jewellery, or long hair increases the risk of injury to persons as a

result of being caught in moving parts.

3. Avoid unintentional starting. Be sure the switch is off before connecting to the air supply. Do not carry the

tool with your finger on the switch or connect the tool to the air supply with the switch on.

4. Remove adjusting keys and wrenches before turning the tool on. A wrench or a key that is left attached to a

rotating part of the tool increases the risk of personal injury.

5. Do not overreach. Keep proper footing and balance at all times. Proper footing and balance enables better

control of the tool in unexpected situations.

6. Use safety equipment. A dust mask, non-skid safety shoes and a hard hat must be used for the applicable

conditions. Wear heavy-duty work gloves during use.

7. Always wear eye protection. Wear ANSI-approved safety goggles.

8. Always wear hearing protection when using the tool. Prolonged exposure to high intensity noise is able to

cause hearing loss.

9. Risk of Electric Shock. This tool is not provided with an insulated gripping surface. Contact with a ″live″ wire

will also make exposed metal parts of the tool ″live″ and shock the operator.

10. Avoid body contact with grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an

increased risk of electric shock if your body is grounded.

11. Explore the workplace to avoid contact with hidden wiring. Thoroughly investigate the workplace for possible

hidden wiring before performing work. Contact with live wiring will shock the operator.

12. DANGER! Keep hands and body away from cutting area and blade. Keep your second hand on auxiliary

handle or motor housing. Heavy duty work gloves are needed for this tool. Contact with the blade will result

in a serious injury.

13. Do not reach hands underneath the workpiece.

Air Source

1. Never connect to an air source that is capable of exceeding 200 psi.

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AIR METAL SAW

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Over pressurizing the tool may cause bursting, abnormal operation, breakage of the tool or serious injury to

persons. Use only clean, dry, regulated compressed air at the rated pressure or within the rated pressure

range as marked on the tool.

Always verify prior to using the tool that the air source has been adjusted to the rated air pressure or within

the rated air-pressure range.

2. Never use oxygen, carbon dioxide, combustible gases or any bottled gas as an air source for the tool. Such

gases are capable of explosion and serious injury to persons.

Specific Safety Instructions

1. The warnings and precautions discussed in this manual cannot cover all possible conditions and situations

that may occur. It must be understood by the operator that common sense and caution are factors which

cannot be built into this product, but must be supplied by the operator.

2. WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities,

may contain harmful chemicals. Some examples of these chemicals are:

•Lead from lead-based paints

•Crystalline silica from bricks and cement or other masonry products

•Arsenic and chromium from chemically treated lumber

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your

exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such

as those dust masks that are specially designed to filter out microscopic particles.

3. Attach all accessories properly to the tool before connecting the air supply. A loose accessory may detach or

break during operation.

4. Obey the manual for the air compressor used to power this tool.

5. Install an in-line shutoff valve to allow immediate control over the air supply in an emergency, even if a hose

is ruptured.

6. Use this tool with both hands only. Using tools with only one hand can result in loss of control.

7. Do not lay the tool down until it has come to a complete stop. Moving parts can grab the surface and pull the

tool out of your control.

Item Details

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AIR METAL SAW

3

Set-up

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all

text under subheadings therein before set up or use of this product.

Note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram

near the end of this manual.

Note: This air tool may be shipped with a protective plug covering the air inlet. Remove this plug before set up.

WARNING!

TO PREVENT SERIOUS INJURY FROM EXPLOSION: Use only clean, dry, regulated,

compressed air to power this tool. Do not use oxygen, carbon dioxide, combustible gases, or any

other bottled gas as a power source for this tool.

1. Incorporate a filter, regulator with pressure gauge, oiler, in-line shutoff valve, and quick coupler for best

service, as shown. An in-line shutoff ball valve is an important safety device because it controls the air

supply even if the air hose is ruptured. The shutoff valve should be a ball valve because it can be closed

quickly.

Note: If an automatic oiler system is not used, add a few drops of Pneumatic/Air Tool Oil before each use into the

airline connection before operation (fig 1). Pump lever a few times to ensure oil runs through tool (fig 2).

2. Attach an air hose to the compressor's air outlet. Connect the air hose to the air inlet of the tool. Other

components, such as a coupler plug and quick coupler, will make operation more efficient, but are not

required.

WARNING! TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Do not install a female

quick coupler on the tool. Such a coupler contains an air valve that will allow the air tool to retain pressure and

operate accidentally after the air supply is disconnected.

Note:Air flow, and therefore tool performance, can be hindered by undersized air supply components. The air

hose must be long enough to reach the work area with enough extra length to allow free movement while

working.

3. Release the throttle.

4. Close the in-line shutoff valve between the compressor and the tool.

5. Turn on the air compressor according to the manufacturer's directions and allow it to build up pressure until it

cycles off.

6. Adjust the air compressor's output regulator so that the air output is enough to properly power the tool, but

the output will not exceed the tool's maximum air pressure at any time. Adjust the pressure gradually, while

checking the air output gauge to set the right pressure range.

7. Inspect the air connections for leaks. Repair any leaks found.

8. If the tool will not be used at this time, turn off and detach the air supply, safely discharge any residual air

pressure, and release the throttle to prevent accidental operation.

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AIR METAL SAW

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Note: Residual air pressure should not be present after the tool is disconnected from the air supply. However, it

is a good safety measure to attempt to discharge the tool in a safe fashion after disconnecting to ensure that the

tool is disconnected and not powered.

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Turn off the tool, detach the air supply,

safely discharge any residual air pressure in the tool, and release the throttle and/or turn the switch to its off

position before performing any inspection, maintenance, or cleaning procedures.

TO PREVENT SERIOUS INJURY: Do not adjust or tamper with any control or component in a way not

specifically explained within this manual. Improper adjustment can result in tool failure or other serious

hazards.

Installing Blade

1. The Blade Guard may be removed when replacing blades, but it must always be on during operation. Using the

Saw without the Blade Guard can result in severe injury.

2. To remove the Blade Guard, use the Wrench to loosen the two Set Screws on the outside of the tool. When

replacing the Blade Guard, place it in the slots and tighten the Set Screws. See Figure 1, above.

3. To change blades, first open the Chuck Cover by removing the Screw. Swing the Chuck Cover back on its

hinge. See Figure 2, above.

Note: When Saw is in the upside down position, the blade teeth will face upward.

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AIR METAL SAW

5

4. Loosen the two Set Screws inside, until the blade can be removed. Replace with a new blade (sold

separately) and tighten the Set Screws. Replace the Chuck Cover and carefully tighten the Screw.

CAUTION: Do not overtighten the Screw or you may break the Chuck Cover.

Connecting to Air

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AIR METAL SAW

6

Operation

Work Piece and Work Area Set Up

1. Designate a work area that is clean and well-lit. The work area must not allow access by children or pets to

prevent distraction and injury.

2. Route the air hose along a safe route to reach the work area without creating a tripping hazard or exposing the air

hose to possible damage. The air hose must be long enough to reach the work area with enough extra length to

allow free movement while working.

3. Secure loose workpieces using a vise or clamps (not included) to prevent movement while working.

4. There must not be hazardous objects (such as utility lines or foreign objects) nearby that will present a hazard

while working.

General Operating Instructions

This Saw may be used for cutting through copper, sheet metal, aluminum, and plastic.

When cutting sheet metal, the angled face of the Blade Guard should rest on the plate to minimize its chatter,

allowing for smoother cutting action.

WARNING: Do not exceed the maximum 16 gauge thickness when cutting sheet metal with this Saw. Doing so

can cause serious injury and damage to the tool.

WARNING: Do not use a dull or cracked blade. Check that the blade and Blade Guard are secured tightly before

every use. Operate the Saw with two hands. Hold the Housing and throttle with one hand, keeping your forefinger

behind the Safety Catch. Hold the front end of the tool with your other hand. Keep all fingers behind the handle recess

but do not cover the Chuck vent holes.

WARNING: Failure to use two hands may cause the Saw to vibrate out of your control causing serious injury.

1. Once the blade is securely installed, push the Safety Catch forward to release the Throttle. Then press down

on the Throttle to activate the Saw.

2. Contact the workpiece allowing the Saw to do the cutting for you. Do not exert excessive pressure on the

workpiece.

NOTE: If the tool requires more force to accomplish the task, verify that the tool receives sufficient, unobstructed

airflow (CFM) and increase the pressure (PSI) output of the regulator up to the maximum air pressure rating of this

tool. If the tool still does not have sufficient force at maximum pressure and sufficient airflow, then a larger tool may be

required.

3. To prevent accidents, turn off the tool, detach the air supply, safely discharge any residual air pressure in the

tool, and release the throttle and/or turn the switch to its off position after use. Clean external surfaces of the

tool with a clean, dry cloth. Then store the tool indoors out of children’s reach.

WARNING: To prevent tool and accessory failure, resulting in injury, do not exceed the tool’s maximum

air pressure rating.

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AIR METAL SAW

7

Maintenance

Tool Use and Care

1. Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the

work by hand or against the body is unstable and is able to lead to loss of control.

2. Do not exceed the maximum 16 gauge thickness when cutting sheet metal with saw.

3. Do not force the tool. Use the correct tool for the application. The correct tool will do the job better and safer

at the rate for which the tool is designed.

4. Do not use the tool if the switch does not turn the tool on or off. Any tool that cannot be controlled with the

switch is dangerous and must be repaired.

5. Disconnect the tool from the air source before making any adjustments, changing accessories, or storing the

tool. Such preventive safety measures reduce the risk of starting the tool unintentionally. Turn off and detach

the air supply, safely discharge any residual air pressure, and release the throttle and/or turn the switch to its

off position before leaving the work area.

6. Store the tool when it is idle out of reach of children and other untrained persons. A tool is dangerous in the

hands of untrained users.

7. Maintain the tool with care. Keep a cutting tool sharp and clean. A properly maintained tool, with sharp

cutting edges reduces the risk of binding and is easier to control.

8. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that affects

the tool's operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly

maintained tools. There is a risk of bursting if the tool is damaged.

9. Use only accessories that are identified by the manufacturer for the specific tool model. Use of an accessory

not intended for use with the specific tool model, increases the risk of injury to persons.

Cleaning, Maintenance, and Lubrication

NOTE: These procedures are in addition to the regular checks and maintenance explained as part of the regular

operation of the air-operated tool.

1. Daily - Air Supply Maintenance:

Every day, maintain the air supply according to the component manufacturers' instructions. Maintain the

lubricator's oil level. Drain the moisture filter regularly. Performing routine air supply maintenance will allow

the tool to operate more safely and will also reduce wear on the tool.

2. Make sure that the Housing that holds the blades and Air Inlet are free of dirt and debris.

3. Periodically: Apply a light machine oil to the pivot point on the Throttle.

4. Before Each Use: Check to make sure blades and Blade Guard are securely in place. If necessary, tighten

the Set Screws.

5. Quarterly (every 3 months) – Tool Disassembly, Cleaning, and Inspection:

Have the internal mechanism cleaned, inspected, and lubricated by a qualified technician.

Troubleshooting

PROBLEM POSSIBLE CAUSE LIKELY SOLUTIONS

Decreased output Not enough air pressure and/or air

flow Check for loose c connections and make sure that air supply

is providing enough air flow (CFM) at required pressure

(PSI) to the tool's air inlet. Do not exceed maximum air

pressure.

Obstructed Throttle Clean around Throttle to ensure free movement

Incorrect lubrication or not enough Lubricate using air tool oil and grease according to directions

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AIR METAL SAW

8

PROBLEM POSSIBLE CAUSE LIKELY SOLUTIONS

lubrication

Air leaking from loose housing Make sure housing is properly assembled and tight

Blocked air inlet screen (if equipped) Clean air inlet screen of build-up

Mechanism contaminated Have qualified technician clean and lubricate mechanism.

Install in-line filter in air supply as stated in Initial Tool Set

Up/Assembly: Air Supply

Housing heats

during use. Incorrect lubrication or not enough

lubrication Lubricate using air tool oil and grease according to directions

Worn parts Have qualified technician inspect internal mechanism and

replace parts as needed

Severe air leakage

(Slight leakage is

normal especially

on older tools)

Cross‑threaded housing components Check for incorrect alignment and uneven gaps. If cross-

threaded, disassemble and replace damaged parts before

use

Loose housing Tighten housing assembly. If housing cannot tighten

properly, internal parts may be misaligned

Damaged valve or housing Replace damaged components.

Dirty, worn or damaged valve Clean or replace valve assembly

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Unimac AIRSAWUMCAH16 User manual

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