U.S.SAWS HS-100 User manual

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U.S.SAWS
HS-100, HS-125 & HS-150
OPERATING MANUAL

THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGH-
OUT THIS MANUAL AND ARE DESIGNED TO MAKE YOU AWARE OF
POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN
THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the contents
before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
WARNING
CAUTION
IMPORTANT
WARNING
• Do NOT insert tool into slot narrower than chain
• Do NOT operate tool without solid footing and hand grip
• Use only in well in ventilated area
• Failure to observe these precaution can result serious injuries
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SYMBOLS & LABELS

General Safety Precautions
• Do not operate machine unless you have read the operations and maintenance manual carefully.
Read any additional instructions included from other manufacturers and organizations such as Honda
and the Masonry and Concrete Saw Manufacturers Institute. Learn the applications and limitations as
well as the specic potential hazards related to this tool.
• Do not operate this machine unless you have received operational and maintenance training from a
US SAWS representative or from an authorized distributor for US SAWS.
• Observe all applicable local, state, and federal safety regulations. Wear OSHA approved foot
protection.
• Observe all applicable local, state, and federal safety regulations. Wear OSHA approved safety
glasses.
• Breathable silica may be generated by use of this product. Silica can cause severe and permanent
lung damage, cancer, and other serious diseases. Do not breathe the dust. Do not rely on your sign
or smell to determine if the dust is in the air. Silica may be in the air without a visible dust cloud. If air
monitoring equipment for silica is not provided by your employer at your work site, you MUST wear
appropriate respiratory protection when using or servicing the machine. Consult your employer and
OSHA regarding the appropriate respiratory system.
• Observe all applicable local, state, and federal safety regulations. Wear OSHA approved hearing
protection.
• Do not wear loose clothing or jewelry that can be caught in moving parts. Wear protective hair
covering to contain long hair. Keep hair away from motor air vent. Rubber gloves and non-skid
footwear are recommended when working outdoors.
• Do not expose machine to rain. Do not use machine in wet conditions. Keep work area well lit.
When working at an elevated location, pay attention to articles and persons below.
• During normal operation as instructed, keep a rm hold on the handle grips and maintain control of
the machine until the blade completely stops.
• Never operate a blade in the wrong rotation. Check the rotation direction and blade direction when
mounting a blade.
• Check the maximum operating speed of the machine and blade. Never use a blade rated less than
the machine’s maximum speed rating.
• Never use a cracked, damaged, or misaligned blade. After mounting blade, rotate by hand to check
for proper alignment.
• Do not operate machine while under the inuence of drugs, alcohol or any medication.
• Do not operate machine with parts missing or improperly mounted.
• Verify all guards are in good condition and will function properly before using the machine. Check
for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other
conditions that may a󰀨ect machine operation. A guard, power switch, or other part that is damaged
should be properly repaired or replaced
SAFETY
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U.S.SAWS HS HAND HELD SAW
The U.S.SAWS hand-held air-powered saws are environmentally friendly
and safe alternatives to traditional gas-powered saws for cutting concrete
and asphalt. Traditionally, gas-powered saws have been used when cutting
depths of 4 inches or more.
The HS Series saws are durable, direct drive tools. Because there are no
extra moving parts, the HS saws offer the most power and durability for
heavy construction cutting applications.
Steel Frame Gripping Handle
Model HS-Saw
Part Number US-HS100 US-HS125 US-HS150
RPM 5,200 3,300
Diameter Blades Used 14” 14” 18”
Air Requirements (min) 90 cfm @ 90 psi
Max. Cutting Depth 5” 5” 7”
Weight 22 lbs 24 lbs 25 lbs
Features:
• No gas engine emissions - great for pile cutting
and below grade applications
• Low maintenance, lightweight design
• Oiler included for quick check of uid level
• Application allow for dry or wet cutting
• Constructed with a comfortable design for
seamless cutting
• Air powered design meaning no combustible
parts
Air Powered Hook Up

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A. BEFORE OPERATING THE SAW
• Be sure all nuts and bolts are tight
• Check the air supply for the correct pressure (90 PSI Min.) and rating (85 CFM Min.)
• Turn on the air supply and check for leaks
• Blow out air hose to discharge any dirt, scale, or moisture
• Connect the air hose while pouring a small amount of air tool oil into the other hose connector on the
handle to ush out any moisture and to lubricate the motor.
• Fill the in-line oiler with ice free oil
B. WHILE OPERATING THE SAW
• Before contacting the material to be cut, squeeze the trigger and allow the saw to reach full speed
• Ease the blade into the material beginning cut
• At the end of he cut, lift saw until the blade is clear of the cut, then release the trigger
• Allow the blade to come to a complete stop before setting it down
• Check the in-line oiler for oil level after 2-3 hours of operation
C. AFTER OPERATING THE SAW
• Shut o air supply and bleed the line to relieve pressure
• Remove the air line and t a protective cover to the air inlet
• Clean the saw by removing any accumulated dust
D. INSTALLING OR REPLACING BLADE
• Turn o and Disconnect air supply and remove arbor nut (left-hand thread) and outer ange from shaft
• Place blade on shaft and check that the directional arrow points clockwise as you turn the shaft
(counterclockwise on up cut saws)
• Install outer ange and hand tighten arbor nut (left-hand thread). Hold inner ange with supplied 2”
wrench and tighten the arbor nut using the 1”or 1 1/2” wrench supplied
OPERATION & PARTS
Sawtec ●800-624-7832 ●fax [phone] ●www.surfacepreparation.com
INTRODUCTION
The HS-150 pneumatic cutoff saw is designed for simple operation and has been proven to be extremely useful and versatile. A 12” to 18”
diameter diamond blade may be mounted on the saw if it is rated and approved for operation at 3,300 RPM. READ, AND CAREFULLY
FOLLOW, THE OPERATING AND SAFETY INSTRUCTIONS OF THIS OPERATING AND SAFETY INSTRUCTION MANUAL BEFORE
USING THIS PRODUCT. Since safety regulations can vary between different countries and states, you must contact proper authorities and follow
all appropriate regulations.
IMPORTANT SAFETY INSTRUCTIONS
No person should attempt to operate this saw without first being trained in the operation of industrial cutting tools. These instructions are not
intended as a substitute for training and experience. The operator must observe safeguards that include, but are not limited, to the following:
• DO NOT MODIFY ANY SAW FROM ITS ORIGINAL DESIGN WITHOUT THE WRITTEN PERMISSION OF THE
MANUFACTURER. UNAUTHORIZED MODIFICATIONS CAN LEAD TO SERIOUS INJURY OR DEATH TO YOURSELF OR
OTHERS.
• DO NOT use any blade marked for less than 3,300 RPM.
• DO NOT service the saw or change blades without first disconnecting the power.
• DO NOT install a blade before inspecting the blade for damage.
• DO NOT operate saw with a damaged blade. A damaged blade may fly apart and cause serious injury or death.
• DO NOT use a blade that wobbles when mounted on the saw.
• Verify blade is correct for application before use.
• Verify blade rotation matches the direction arrow on blade guard.
• DO NOT apply power to the blade before spinning the blade by hand to check alignment.
• DO NOT operate with any loose nuts or bolts. Check all nuts and bolts for tightness.
• DO NOT operate without appropriate ear, eye, foot, hand and breathing protection..
• DO NOT operate around any loose or foreign objects that may damage system.
• DO NOT operate saw if arbor shaft has excessive end play.
• DO NOT cut material that the blade is not designed for.
• DO NOT operate saw near combustible material or fumes.
• DO NOT force blade through material to be cut. Always ease blade through material.
HS-150 OPERATING INSTRUCTIONS
A. BEFORE OPERATING THE SAW
1. Be sure all nuts and bolts are tight.
2. Check the air supply for the correct pressure (90 PSI Min.) and rating (85 CFM Min.)
3. Turn on air supply and check for leaks.
4. Blow out air hose to discharge any dirt, scale or moisture.
5. Connect the air hose while pouring a small amount of general purpose air tool oil into other hose connector on the handle to
flush out any moisture and lubricate the motor.
6. Fill the in-line oiler with Sawtec ice free oil.
B. WHILE OPERATING THE SAW
1. Before contacting the material to be cut, squeeze the trigger and allow the saw to reach full speed.
2. Ease the saw blade into the material being cut.
3. At the end of the cut, lift the saw until the blade is clear of the cut, then release the trigger.
4. Allow the blade to come to a complete stop before setting it down.
5. Check the in-line oiler for oil level after 2-3 hours of operation.
C. AFTER OPERATING THE SAW
1. Shut off air supply and bleed air line to relieve pressure.
2. Remove the air line and fit a protective cover to the air inlet.
3. Clean the saw by removing all accumulated dust.
D. INSTALLING OR REPLACING BLADE
1. Disconnect air supply and remove arbor nut (left-hand threads) and outer flange from shaft.
2. Place blade on shaft and check that the directional arrow points clockwise as you turn the shaft (counter-clockwise on upcut
saws).
3. Install outer flange and hand tighten arbor nut (left-hand thread). Hold inner flange with supplied 2” wrench and tighten the
arbor nut using the 1” or 1 1/2” wrench supplied.
Sawtec ●800-624-7832 ●fax [phone] ●www.surfacepreparation.com

Waterworks
Division
P: 866 987-7297 F: 813-621-7125
Visit us at www.ussaws.com
[email protected]
PARTS
Sawtec ●800-624-7832 ●fax [phone] ●www.surfacepreparation.com
INTRODUCTION
The HS-150 pneumatic cutoff saw is designed for simple operation and has been proven to be extremely useful and versatile. A 12” to 18”
diameter diamond blade may be mounted on the saw if it is rated and approved for operation at 3,300 RPM. READ, AND CAREFULLY
FOLLOW, THE OPERATING AND SAFETY INSTRUCTIONS OF THIS OPERATING AND SAFETY INSTRUCTION MANUAL BEFORE
USING THIS PRODUCT. Since safety regulations can vary between different countries and states, you must contact proper authorities and follow
all appropriate regulations.
IMPORTANT SAFETY INSTRUCTIONS
No person should attempt to operate this saw without first being trained in the operation of industrial cutting tools. These instructions are not
intended as a substitute for training and experience. The operator must observe safeguards that include, but are not limited, to the following:
• DO NOT MODIFY ANY SAW FROM ITS ORIGINAL DESIGN WITHOUT THE WRITTEN PERMISSION OF THE
MANUFACTURER. UNAUTHORIZED MODIFICATIONS CAN LEAD TO SERIOUS INJURY OR DEATH TO YOURSELF OR
OTHERS.
• DO NOT use any blade marked for less than 3,300 RPM.
• DO NOT service the saw or change blades without first disconnecting the power.
• DO NOT install a blade before inspecting the blade for damage.
• DO NOT operate saw with a damaged blade. A damaged blade may fly apart and cause serious injury or death.
• DO NOT use a blade that wobbles when mounted on the saw.
• Verify blade is correct for application before use.
• Verify blade rotation matches the direction arrow on blade guard.
• DO NOT apply power to the blade before spinning the blade by hand to check alignment.
• DO NOT operate with any loose nuts or bolts. Check all nuts and bolts for tightness.
• DO NOT operate without appropriate ear, eye, foot, hand and breathing protection..
• DO NOT operate around any loose or foreign objects that may damage system.
• DO NOT operate saw if arbor shaft has excessive end play.
• DO NOT cut material that the blade is not designed for.
• DO NOT operate saw near combustible material or fumes.
• DO NOT force blade through material to be cut. Always ease blade through material.
HS-150 OPERATING INSTRUCTIONS
A. BEFORE OPERATING THE SAW
1. Be sure all nuts and bolts are tight.
2. Check the air supply for the correct pressure (90 PSI Min.) and rating (85 CFM Min.)
3. Turn on air supply and check for leaks.
4. Blow out air hose to discharge any dirt, scale or moisture.
5. Connect the air hose while pouring a small amount of general purpose air tool oil into other hose connector on the handle to
flush out any moisture and lubricate the motor.
6. Fill the in-line oiler with Sawtec ice free oil.
B. WHILE OPERATING THE SAW
1. Before contacting the material to be cut, squeeze the trigger and allow the saw to reach full speed.
2. Ease the saw blade into the material being cut.
3. At the end of the cut, lift the saw until the blade is clear of the cut, then release the trigger.
4. Allow the blade to come to a complete stop before setting it down.
5. Check the in-line oiler for oil level after 2-3 hours of operation.
C. AFTER OPERATING THE SAW
1. Shut off air supply and bleed air line to relieve pressure.
2. Remove the air line and fit a protective cover to the air inlet.
3. Clean the saw by removing all accumulated dust.
D. INSTALLING OR REPLACING BLADE
1. Disconnect air supply and remove arbor nut (left-hand threads) and outer flange from shaft.
2. Place blade on shaft and check that the directional arrow points clockwise as you turn the shaft (counter-clockwise on upcut
saws).
3. Install outer flange and hand tighten arbor nut (left-hand thread). Hold inner flange with supplied 2” wrench and tighten the
arbor nut using the 1” or 1 1/2” wrench supplied.
Sawtec ●800-624-7832 ●fax [phone] ●www.surfacepreparation.com

Waterworks
Division
P: 866 987-7297 F: 813-621-7125
Visit us at www.ussaws.com
[email protected]
MODEL DESCRIPTION PART NO
HS-100 Hand-held air powered saw with direct drive motor, 14” blade capacity, built-in oiler,
whip hose, wrenches, and one quart ice free air oil. Moderate duty 5,250 RPM saw
cuts to 4” depth
US-HS100
HS-125 Hand-held air powered saw with gear box, 14”blade capacity, built-in oiler, whip
hose, wrenches, and one quart of ice free air tool oil. Heavy duty 3,300 RPM saw cuts
to 4” depth.
US-HS125
HS-150 Hand-held air powered saw with gear box, 18”blade capacity, built-in oiler, whip
hose, wrenches, and one quart of ice free air tool oil. Heavy duty 3,300 RPM saw cuts
to 7” depth.
US-HS150
AIR OIL Quart of petroleum based ice free oil. 02-17059
PARTS

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MACHINE WARRANTY INFORMATION CARD
Limited Equipment Warranty and Liability
U.S.SAWS and Blades Inc, herein referred to as U.S.SAWS, warrants that each new unit manufactured by U.S.SAWS to be free from
defects in material and workmanship in normal use and service for a period of (1) one year (except in the case of consumables) from the
date of delivery to the original buyer.
U.S.SAWS will, at it’s sole option, repair or replace, at the U.S.SAWS factory or at a point designated by U.S.SAWS, any part, which shall
appear to the satisfaction of U.S.SAWS inspection to have been defective in material or workmanship.
-e Warranty does not apply to failure occuring as a result of abuse, misuse, negligent repairs, corrosion, erosion, normal wear and tear,
alterations or modications made to the unit without the express written consent of U.S.SAWS or failure to follow the recommended
operating practices and maintenance procedures as provided in the product’s operating manual.
-Accessories or equipment furnished and installed on the product by U.S.SAWS but manufactured by others including, but not limited
to, engines, motors, electrical equipment, transmissions, etc., shall carry the accessory manufacturer’s own warranty.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, OR STATUTORY, INCLUDING ANY
WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE.
e remedies of the user set forth under provisions of warranty outlined above are the exclusive and total liability of U.S.SAWS with
respect to their sale of the equipment and service hereunder, in connection with the performance or breach thereof, or from the sale,
delivery, installation, repair, or technical direction covered by or furnished under the sale, whether based on contract, warranty, negli-
gence, indemnity, strict liability, or otherwise shall not exceed the purchase price of the equipment upon which such liability is based.
U.S.SAWS will not in any event be liable to the user, any successors in interest or any beneciary or assignee relating to this sale for
any consequential, incidental, indirect, special or punitive damages arising out of this sale of, any defects on, or failure of, or malfunc-
tion of the equipment under this sale based upon loss of use, lost prots or revenue, interest, lost good will, work stoppage, impairement
of other goods, loss by reason of shutdown or non operation, increased expenses of operation of the equipment, cost of purchase or
replacement of claims of users or customers of the user for service interuption whether or not such loss or damage is based on contract,
warranty, negligence, indemnity, strict liability, or otherwise. U.S.SAWS reserves the right to modify, alter, and improve any part or
parts without incurring any obligation to replace any part or parts previously sold prior to modication.