Related Manuals for Northern Industrial Tools 998800
Summary of Contents for Northern Industrial Tools 998800
- Page 1 GAS-POWERED CUTOFF SAW OWNER’S MANUAL WARNING: Read carefully understand INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety precautions may result in serious personal injury. Item# 998800...
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Page 2: Intended Use
Thank you very much for choosing a NORTHERN TOOL + EQUIPMENT CO., INC. Product! For future reference, please complete the owner’s record below: Model: _______________ Purchase Date: _______________ Save the receipt, warranty and these instructions. It is important that you read the entire manual to become familiar with this product before you begin using it. -
Page 3: General Safety Rules
GENERAL SAFETY RULES WARNING: The use of any cutoff machine can be dangerous. Because a cutoff machine is a high-speed, fast-cutting power tool, special safety precautions must be observed to reduce the risk of personal injury. WARNING: Read and understand all instructions. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. -
Page 4: Personal Safety
unless adequate ventilation, through such items as exhaust fans or hoses, is provided. Exhaust gas from the engine contains poisonous carbon monoxide gas; exposure to carbon monoxide can cause loss of consciousness and may lead to death. • DO NOT smoke while operating the machine. •... -
Page 5: Tool Use And Care
• Remove adjusting keys or wrenches before connecting the tool to the power supply or turning it on. A wrench or key that is left attached to a rotating part of the tool may result in personal injury. TOOL USE AND CARE •... - Page 6 1. Operator's Manual 11. Cutting Blade 2. Decompression Valve 12. Front Handle 3. Water Valve 13. Air Filter Cover 4. Adjustment Handle for Blade Guard 14. Chock 5. Blade Guard 15. Stop Switch 6. Throttle Control 16. Throttle Trigger Locknut 7.
- Page 7 • Do not use Flanges that are twisted, have damaged edges, are dirty or are a different size than specified for the tool. Fitting the Cutting Blade The Blade is placed between the inner Flange Hub (A) and the outer Flange Hub (B). The Flange Hub is turned so that it fits on the Axle.
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Page 8: Operation
OPERATION WARNING! Carbon monoxide in exhaust fumes can cause serious injury or death; ensure proper ventilation before using this tool. CUTTING Check that no one is in the immediate vicinity when starting the machine or while working with the machine to avoid distractions and control of the Power Cutter. This cutoff saw is a one-person tool. - Page 9 4. Use the appropriate Blade speed. 5. Move the Blade slowly backwards and forwards. 6. Only use the Blade's cutting edge when cutting. 7. Ensure that Blade is fully vertical while cutting; cut at right angles to the work piece. WARNING! •...
- Page 10 Blade Vibration Take care in selecting feeding pressure; excessive feeding pressure can cause a Blade to vibrate and lose proper shape. Choosing a lower feeding pressure will usually stop vibrations; if vibration continues, replace the Blade. How to Avoid kickback WARNING: Kickback can occur very suddenly and with great force.
- Page 11 and without a load. The maximum speed is stated on the machine. WARNING! If the Drive Axle speed is higher than the stated maximum speed, the machine should be adjusted by an authorized service professional before it is used. Care and Storage of the Power Cutter Always handle the Power Cutter carefully and store it with the Blade removed.
- Page 12 ABRASIVE DISCS TYPES AND USES Blade General Recommended Water Cooling Type Characteristics Materials Applications Universal Concrete, asphalt, Can be used to application stone, brickwork, reduce dust. The Economical cast iron, aluminum, disc should not be copper, brass, stored after cutting cables, rubber is complete as water Concrete...
- Page 13 Blade All brickwork, reinforced Lower cost per concrete and other composite cutting operation. Water cooling is highly material. Requires fewer recommended and Never use the Cutoff Saw with Blade changes. increases the Blade saw blades, cutter blades, Produces less dust service life.
- Page 14 3. Press in the Valve (B) to reduce the pressure in the Cylinder. This assists starting the Cutter. Always use the Decompression Valve when starting the machine. When the machine starts, the Valve automatically returns to its original position. 4. Hold the Front Handle with your left hand. Place your right foot on the lower section of the Rear Handle, pressing the Cutter against the ground.
- Page 15 sure it can rotate freely before starting the engine. To stop the engine, turn off the ignition by pressing the Switch to the Stop position. FUEL HANDLING Fuel Mix This Cutoff Saw is equipped with a two-stroke engine and requires a mixture of gasoline and two-stroke engine oil.
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Page 16: Adjusting The Drive Belt
maximum spindle speed is 5400 RPM. • If the maximum spindle speed exceeds 5400 RPM, stop using the Cutter and have it repaired by an authorized service professional. ADJUSTING THE DRIVE BELT The Drive Belt is enclosed and protected from dust, dirt and mechanical damage when the tool is operating. - Page 17 WARNING! NEVER use the Power Cutter without the Blade Guard in position over the Cutting Blade. WARNING! NEVER start the engine when the Pulley and Clutch are removed. Carburetor The engine on your unit will be broken in after you have run 8-10 tanks of fuel. To ensure peak performance after the break-in period, have your carburetor checked at an authorized service center, which has a revolution counter available.
- Page 18 The air filter system consists of a main filter and a back-up filter: The main filter is an oiled foam rubber filter that is easily accessible. This filter should be inspected after every other fueling. To ensure effectiveness, the filter must be inspected and cleaned regularly.
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Page 19: Tensioning The Recoil Spring
compressed air. DO NOT WASH THE FILTER. • Ensure that the main filter is installed in the proper position; the bottom characters on the main filter should face the handle of the unit. Water Filter Check and clean the water filter as needed. STARTER WARNING: The Recoil Spring sits in its tensioned position in the Starter Housing... -
Page 20: Installing The Starter
Replacing a Broken Recoil Spring • Lift the Starter Pulley (see "Changing a broken or worn Starter Cord"). • Loosen the screws holding the Spring Cassette. • Disassemble the Recoil Spring by tapping the Pulley lightly against a work bench or similar object. -
Page 21: Air Filters
Air Filters A dirty air filter can also cause deposits on the Spark Plug Electrode that may cause malfunctions including low power or difficulty starting the unit. Spark Plug Inspection and Replacement If the machine is low on power or difficult to start, check the Spark Plug first. If the Spark Plug is dirty, clean it. - Page 23 DIAGRAM & PARTS LIST...
- Page 24 Part# Part# Description Qty. Description Qty. Screw Starter pulley Cover Screw ST4.2×13 Insert Starter seat Diaphragm Starter rope Diaphragm Starter handle Lever Screw M5×25 Lever spring Starter housing Plug Screw M5×20 Needle Lock washer Governor Handle right Gasket Throttle rod Retaining Ring Washer Washer...
- Page 25 Part# Description Qty. Part# Description Qty. Decal Screw M5×60 Spring mount Filter cover Screw M5×15 Filter Cylinder cover Absorber Air filter Handle Guard Screw ST5×42 Screw M5×90 Support R. Dcal Screw ST5×25 Spacer Support L. Screw Nipple Screw M5×25 Screw ST3.5×8 Plug Y-tube Valve...
- Page 26 Part# Part# Description Qty. Description Qty. Tank vent Washer ø15×ø21 94- Tank Grommet Pulley Unit Hose 245 mm Belt Screw M8×40 Needle bearing Screw M6×90 98 - Ball bearing Belt cover Crankshaft Connecting link Spring Unit Woodruff key Ball bearing Tensioner Crankcase gasket Bolt M8×40...
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Page 27: Troubleshooting
TROUBLE SHOOTING... -
Page 28: Warranty
WARRANTY One-year limited warranty Northern Tool + Equipment Co., Inc. Burnsville, MN 55306-6936 Made in China...