4” GAS PORTABLE CUT OFF SAW Model 94488 ASSEMBLY AND OPERATING INSTRUCTIONS Due to continuing improvements, actual product may differ slightly from the product described herein. CAUTION! Your Warranty Is Voided If: You do not operate the Cut Off Saw with the proper 50:1 fuel mix in its Fuel Tank. SEE PAGES 12 AND 13 OF THIS MANUAL FOR FUEL MIX INSTRUCTIONS. Never run the Engine with an improper fuel mix, low or no fuel mix.
PRODUCT SPECIFICATIONS Required Saw Blade Type Maximum Saw Blade Speed Saw Blade Rotation Maximum Cutting Depth Drive Type Belt Type Spindle Diameter Noise Level Engine Specifications Overall Dimensions Product Weight 14” Diameter (Not Included) 7/64” to 1/4” Thickness Composite Abrasive or Diamond Abrasive Rated at a Minimum 4700 RPM 1” Diameter Spindle Hole 4700 RPM Clockwise 4-1/2” Belt Driven 10X840 Li (3/4” Width) 1” Diameter 110 dBA @ 3 Feet 3.
. Keep bystanders, children, and visitors away while operating a power tool. Distractions can cause you to lose control. Provide barriers or shields as needed. PERSONAL SAFETY 1. Stay alert. Watch what you are doing, and use common sense when operating a power tool. Do not use a power tool while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating power tools may result in serious personal injury. 2. Dress properly.
SERVICE 1. Tool service must be performed only by qualified repair personnel. Service or maintenance performed by unqualified personnel could result in a risk of injury. 2. When servicing a tool, use only identical replacement parts. Follow instructions in the “Inspection, Maintenance, And Cleaning” section of this manual. Use of unauthorized parts or failure to follow maintenance instructions may create a risk of electric shock or injury. SPECIFIC SAFETY General RULES AND PRECAUTIONS 1.
4. Never store fuel or other flammable materials near the Cut Off Saw. 5. Do not smoke, or allow sparks, flames, or other sources of ignition around the Cut Off Saw. 6. Keep grounded conductive objects, such as tools, away from exposed, live electrical parts and connections to avoid sparking or arcing. These events could ignite fumes or vapors. 7. Do not refill the Fuel Tank while the Engine is running or while the Engine is still hot.
d. Only composite abrasive or diamond abrasive Saw Blades rated at a minimum of 4,700 RPM. 2. Never use carbide-tipped, woodcutting, or circular machine Saw Blades. They can cause severe personal injury from reactive forces, blade contact, or thrown objects. 3. Only cut asphalt, concrete, stone, brick, and plastics with this Cut Off Saw. 4. Inspect the Saw Blade frequently, and replace immediately if the Blade is cracked, or warped.
is pinched or bound tightly by the kerf closing down, the Saw Blade stalls and the engine reaction drives the Cut Off Saw rapidly back toward the operator. If the Saw Blade becomes twisted or misaligned in the cut, the teeth at the back edge of the Saw Blade can raise the Cut Off Saw (walk up) toward the operator.
area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles. (California Health & Safety Code § 25249.5, et seq.) 2. WARNING! People with pacemakers should consult their physician(s) before using this product. Electromagnetic fields in close proximity to a heart pacemaker could cause interference to or failure of the pacemaker. 3.
5. Front Handle (3G): Use to securely hold the Cut Off Saw when operating. 6. Spark Plug Cover (4D): A removable cover for access to the Spark Plug (2B). 7. Kill Switch (5D): Engine stops when this switch is pressed and held. 8. Full Throttle Lock Button (9D): To lock the Throttle Trigger (10D) in wide open position, press this button while the Throttle Trigger is fully depressed. Pressing and releasing the Throttle Trigger will return the Throttle Trigger to its idle position. 9.
3G 19F 5D 9D .
ASSEMBLY INSTRUCTIONS CAUTION! Make sure to wear ANSI-approved safety impact eyeglasses when performing any assembly of the Cut Off Saw. Also, when installing or replacing the Saw Blade (23F) (not included) wear heavy duty work gloves to avoid accidental cuts to the hands and fingers. To Install A Saw Blade: 1. Make sure to refer to the “SAW BLADE PRECAUTIONS” section on page 6 of this manual to select the correct size and type of Saw Blade to install in the Cut Off Saw. 2.
3. Once the proper fuel mix is obtained, remove the Fuel Tank Cap (16C). Fill the Fuel Tank (2C, 10C) approximately 3/4 full with the fuel mix (the Fuel Tank capacity is 0.4 gallons). Then, replace the Fuel Tank Cap. (See Figure A.) FUEL MIX QUANTITIES Ratio Two Cycle Oil Unleaded Gasoline (91 Octane) 50:1 4 Fl. Oz. 1.5 Gal. 50:1 8 Fl. Oz. 3 Gal. 50:1 16 Fl. Oz. 6 Gal.
4. Press down on the Decompression Valve (7B) and turn the Kill Switch (5D) out of the off position. (See Figure B.) 5. Set the Choke Lever (5C) to the appropriate position. (See Figure B.) If the Engine is cold. If the Engine is warm (even if the Engine has already been run but is still cold). If the Engine is warm (normal position for warm start). 6. Hold the Front Handle (3G) with your left hand, and place your right foot on the rear section of the Main Housing (1D).
idle for several minutes to dissipate the heat. This will prevent some engine parts (ignition system, carburetor, etc.) from being damaged by overheating. 2. IMPORTANT: The Saw Blade (23F) will not rotate when the Engine idles. (See Figure A.) 3. When the Cut Off Saw is ready to operate, gently pull the Throttle Trigger (10D) backward to accelerate the Engine. Once the Engine accelerates, the Saw Blade will begin to rotate and speed up.
e. Replace the Transmission Box Cover (2F), and secure it with the Screws (1F). (See Figure C.) V-BELT (3F) HEX BOLT (11F) SCREW (1F) BOLT (14F) HEX BOLT (11F) TRANSMISSION BOX COVER (2F) TENSIONING NUT (35F) FIGURE C 4. To clean the Pre-Filter 1 (2E), Pre-Filter 2 (3E), Filter Housing (4E), Paper Air Filter (5E), and Secondary Filter (6E): It is recommended to clean the Pre-Filter 1, Pre-Filter 2, Filter Housing, Paper Air Filter, and Secondary Filter every 48 hours of use.
b. Remove the Spark Plug Wire (18). Then, unscrew and remove the Spark Plug (2B). (See Figure E.) c. Clean off the carbon build-up on the Spark Plug (2B). (See Figure E.) d. Check the electrode gap to see if it is 0.020”. If necessary, readjust. (See Figure E.) e. Replace the Spark Plug (2B) after every 100 operating hours, or earlier if the electrodes are badly eroded (a Bosch WSR 6 F or NGK BPMR 7A is recommended for replacement). (See Figure E.) f.
TROUBLESHOOTING Problem Possible Solution 1. Check for amount of fuel. 2. Make sure Choke Lever is in proper position. 3. Make sure Spark Plug Wire is not loose. 4. Check condition of Spark Plug. Wipe off any access fuel with a clean, dry cloth. Prior to reinstalling the spark plug, vent the combustion chamber by pulling the start grip several times. Engine will not start or runs 5. Make sure Air Filter assembly is clean poorly. 6. Make sure to press Decompression Valve before starting.
PARTS LIST/ASSEMBLY DIAGRAM CRANKSHAFT HOUSING ASSEMBLY Part 1 2 3 4 5 6 7 8 9 Description Screw (M5 x 20) Plug Cover Screw (M5 x 20) Washer (5) Coil Oil Seal (17 x 28 x 7) Crankshaft Housing (Left) Ball Bearing (6203) Q’ty 10 1 1 3 3 1 1 1 1 Part 10 11 12 13 14 15 16 17 18 Description Gasket Positioning Sleeve Crankshaft Housing (Right) Oil Seal (15 x 24 x 7) Oil Needle Ball Bearing (6202) Cover Plug Spark Plug Wire Q’ty 1 2 1 1 1 1 1 1 1 18 NOTE: Some parts are listed and shown for illustration pur
PARTS LIST/ASSEMBLY DIAGRAM CRANKSHAFT & PISTON ASSEMBLY Part 1A 2A 3A 4A 5A 6A 7A 8A 9A 10A 11A 12A 13A 14A 15A Description Flywheel/Starter Cover Screw Plug Starter Grip Starter Rope Rewind Spring Spring Cover Rope Rotor Pawl Spring Clip Collar Nut Starter Cup Flywheel Crankshaft Locking Clip Piston Pin Q’ty.
PARTS LIST/ASSEMBLY DIAGRAM CYLINDER & MUFFLER ASSEMBLY Part 1B 2B 3B 4B 5B 6B 7B Description Cylinder Spark Plug Cylinder Cover Screw (M5 x 16) Screw (M5 x 20) Washer Decompression Valve Qty. 1 1 1 3 4 1 1 Part 8B 9B 10B 11B 12B 13B Description Exhaust Gasket Muffler Assembly Screw (M5 x 16) Muffler Guard Screw M5 x 12 Gasket, Cylinder Base Qty. 1 1 2 1 1 1 13B NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.
PARTS LIST/ASSEMBLY DIAGRAM FUEL TANK & CARBURETOR Part 1C 2C 3C 4C 5C 6C 7C 8C 9C 10C 11C 12C Description Screw (M5 x 20) Fuel Tank (Left) Pin Rubber Mount Choke Lever Air Hose Carburetor Screw (M5 x 65) Split Pin Fuel Tank (Right) Connecting Hose Sleeve Qty. 8 1 2 2 1 1 1 2 2 1 1 1 Part 13C 14C 15C 16C 17C 18C 19C 20C 21C 22C 23C 24C Description Manifold Hose Clip O-Ring Fuel Tank Cap Washer Tank Vent Gasket Fuel Pick-Up Filter Hose “U” Rubber Tube Screw Bracket Screw (M4 x 5) Qty.
PARTS LIST/ASSEMBLY DIAGRAM HANDLE & MAIN COVER ASSEMBLY Part 1D 2D 3D 4D 5D 6D 7D 8D 9D Description Main Cover Side Sealing Cover Front Sealing Cover Spark Plug Cover Kill Switch Screw (ST2.9 x 13) Handle molding Torsion Spring Control Button Qty. 1 1 1 1 1 2 1 1 1 Part 10D 11D 12D 13D 14D 15D 16D 17D Description Throttle Trigger Trigger Pin Torsion Spring Shaft Throttle Triggering Wire Flameout Wire Positioning Plank Retainer Ring 4 Qty.
PARTS LIST/ASSEMBLY DIAGRAM AIR FILTER ASSEMBLY Part 1E 2E 3E 4E 5E 6E 7E 8E Description Filter Cover Pre-Filter I Pre-Filter 2 Filter Housing Paper Air Filter Secondary Filter Screw (ST2.9 x 19) Half Round Qty. 1 1 1 1 1 1 2 1 Part 9E 10E 11E 12E 13E 14E 15E 16E Description Filter Base Gasket Screw (M5 x 16) Flat Spring Filter Cover Lock Lever Torsion Spring Pin (B3 x 32) Screw (M5 x 12) 15E 14E 13E 12E Qty.
PARTS LIST/ASSEMBLY DIAGRAM TRANSMISSION BOX & CUTTER ASSEMBLY Part 1F 2F 3F 4F 5F 6F 7F 8F 9F 10F 11F 12F 13F 14F 15F 16F 17F 18F 19F Description Screw (M5 x 20) Transmission Box Cover V-Belt (10X840Li) Nut (M10 – Left) Washer (10) Belt Pulley Assy. Washer (12) Clip (35) Ball Bearing (6202) Ring Bolt (M8 x 30) Bearing Plate Transmission Box Bolt (M8 x 30) Woodruff Key (4 x 13) Blade Shaft Washer Rubber Ring Blade Guard Assy. Qty.
PARTS LIST/ASSEMBLY DIAGRAM FRONT HANDLE & SUPPORT ASSEMBLY Part 1G 2G 3G 4G 5G Description Handle Bracket Screw (M5 x 12) Handle Frame Screw (M5 x 24) Spring Lock (8) Qty. 1 2 1 2 2 Part 6G 7G 8G 9G 10G Description Screw (M5 x 25) Washer (8) Wheel Support Wheel Shaft Qty. 2 2 2 1 2 1G 2G 3G 4G 10G 9G 8G 7G 5G 6G NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.
Limited 90 Day warranty Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of ninety days from the date of purchase. This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, or to lack of maintenance.
service, contact the HFT Customer Service Department at 1-800-444-3353. 3. Consequential Damages Coverage Coverage under this warranty shall also extend to the failure of any engine components caused by the failure of any warranted part while it is still covered under this warranty. 5) Miscellaneous items Used in Above Systems i) ii) Vacuum, temperature and time sensitive valves and switches. Hoses, belts, connectors, and assemblies. 4.