OPERATOR'S MANUAL 8-1/4 in. (209.6 mm) Cordless Compound Miter Saw Model MS180 OT AT I ON 15 22.5 30 31.62 45 R 15 45 31.62 30 22.5 THANK YOU FOR BUYING A RYOBI CORDLESS COMPOUND MITER SAW. Your new saw has been engineered and manufactured to Ryobi's high standards for dependability, ease of operation, and operator safety. Properly cared for, it will give you years of rugged, trouble-free performance. CAUTION: Carefully read through this entire operator's manual before using your new saw.
TABLE OF CONTENTS ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Table of Contents and Introduction .................................................................................................................. 2 Product Specifications ...................................................................................................................................... 2 Rules For Safe Operation .............................................................................................................................
RULES FOR SAFE OPERATION READ ALL INSTRUCTIONS ■ KNOW YOUR POWER TOOL. Read the operator's manual carefully. Learn the saw's applications and limitations as well as the specific potential hazards related to this tool. ■ GUARD AGAINST ELECTRICAL SHOCK BY PREVENTING BODY CONTACT WITH GROUNDED SURFACES. For example; pipes, radiators, ranges, refrigerator enclosures. ■ KEEP GUARDS IN PLACE and in good working order. ■ REMOVE ADJUSTING KEYS AND WRENCHES.
RULES FOR SAFE OPERATION ■ NEVER LEAVE TOOL RUNNING UNATTENDED. REMOVE BATTERY PACK. Do not leave tool, move workpiece or make adjustments until it comes to a complete stop. ■ FIRMLY CLAMP OR BOLT your miter saw to a workbench or table at approximately hip height. ■ USE ONLY CORRECT BLADES. Do not use blades with incorrect size holes. Never use blade washers or blade bolts that are defective or incorrect. The maximum blade capacity of your saw is 8-1/4 in. (209.6 mm).
RULES FOR SAFE OPERATION ■ REPLACEMENT PARTS. All repairs, whether electrical or mechanical, should be made at your nearest authorized service center. ■ When servicing use only identical Ryobi replacement parts. Use of any other parts may create a hazard or cause product damage. ■ NEVER USE IN AN EXPLOSIVE ATMOSPHERE. Normal sparking of the motor could ignite fumes. ■ NEVER leave the miter saw unattended while connected to a power source. ■ POLARIZED PLUGS.
RULES FOR SAFE OPERATION IMPORTANT SAFETY INSTRUCTIONS FOR CHARGER ■ SAVE THESE INSTRUCTIONS. This manual contains important safety and operating instructions for charger part number 1423701. ■ Before using charger, read all instructions and cautionary markings in this manual, on charger, and product using charger. ■ To reduce risk of injury, charge only nickelcadmium type rechargeable batteries. Other types of batteries may burst causing personal injury and damage.
SYMBOLS Important: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.
SYMBOLS SAFETY AND INTERNATIONAL SYMBOLS This operator's manual describes safety and international symbols and pictographs that may appear on this product. Read the operator's manual for complete safety, assembly, operating and maintenance, and repair information. MEANING SYMBOL • Do not expose to rain or use in damp locations. • NO HANDS SYMBOL Failure to keep your hands away from the blade will result in serious personal injury.
UNPACKING ■ Your Compound Miter Saw has been shipped completely assembled except for the battery pack, blade, dust bag or dust guide. Do not discard the packing materials until you have carefully inspected the saw, identified all loose parts, and satisfactorily operated your new saw. ■ Your saw has been shipped with the saw arm locked in the down position. To release saw arm, push down on top of saw arm and pull out the lock pin. See Figure 7. ■ Lift the saw arm by the handle.
LOOSE PARTS LIST The following items are included with your Compound Miter Saw: ■ ■ ■ ■ ■ ■ ■ ■ Carbide Tipped Saw Blade - 8-1/4 in. (209.6 mm) Dust Bag Dust Guide Blade Wrench Work clamp 5 mm Hex Key 6 mm Hex Key Operator's Manual (Not Shown) BLADE WRENCH DUST GUIDE 6 mm HEX KEY DUST BAG RO TA TION 5 mm HEX KEY SAW BLADE WORK CLAMP Fig. 2 WARNING: The use of attachments or accessories not listed can or could be hazardous and cause serious personal injury.
BATTERY PACK AND CHARGING INFORMATION LED FUNCTION OF CHARGER See Figure 3. GREEN LIGHT "ON" INDICATES FULLY CHARGED LED WILL BE LIGHTED TO INDICATE STATUS OF CHARGER AND BATTERY PACK: ■ Red LED lighted = Fast Charging Mode ■ Green LED lighted = Fully Charged Battery Pack ■ Yellow and Green LED Lighted = Control Charge or possible faulty battery. BATTERY CHARGER CHARGING BATTERY PACK The battery pack for this tool has been shipped in a low charge condition to prevent possible problems.
FEATURES KNOW YOUR COMPOUND MITER SAW See Figure 5. CUTTING CAPACITIES When the miter angle (miter table) is set at 0° and the bevel angle is set at 0°: Your saw will cut materials up to a maximum of 5-1/2 in. (139.7 mm) wide x 2-1/16 in. (52.4 mm) thick. When the miter angle (miter table) is set at 45° and the bevel angle is set at 0°: Your saw will cut materials up to a maximum of 3-3/4 in. (95.3 mm) wide x 2-1/16 in. (52.4 mm) thick.
FEATURES CARRYING HANDLE See Figure 6. SPINDLE LOCK BUTTON See Figure 8. For convenience when carrying or transporting your miter saw from one place to another, a carrying handle has been provided on top of the saw arm as shown in figure 6. To transport saw, remove battery pack, then lower the saw arm and lock it in the down position. Lock saw arm by depressing the lock pin. A spindle lock button has been provided for locking the spindle which keeps the blade in your saw from rotating.
FEATURES TRIGGER LOCK See Figure 10. Your compound miter saw should be permanently mounted to a firm supporting surface such as workbench. Four 3/8 in. (10 mm) bolt holes have been provided in the saw base for this purpose. Each of the four mounting holes should be bolted securely using 3/8 in. (10 mm) machine bolts, lock washers, and hex nuts (not included). Bolts should be of sufficient length to accommodate the saw base, lock washers, hex nuts, and the thickness of the workbench.
ADJUSTMENTS squeeze the two metal clips to open the mouth of the bag and slide it on the exhaust port. Release the clips. The metal ring in the bag should lock in one of the grooves on the exhaust port. For more efficient operation, empty dust bag when no more than half full. This will permit better air flow through the bag. WARNING: To prevent accidental starting that could cause possible serious personal injury, assemble all parts to your saw before attaching battery pack.
ADJUSTMENTS TO INSTALL BLADE See Figures 15, 16, 17 and 18. LOWER BLADE GUARD LOWER BLADE GUARD BRACKET DANGER: A 8-1/4 in. (209.6 mm) blade is the maximum blade capacity of your saw. Never use a blade that is too thick to allow outer blade washer to engage with the flats on the spindle. Larger blades will come in contact with the blade guards, while thicker blades will prevent the blade bolt from securing the blade on the spindle.
ADJUSTMENTS ■ ■ ■ ■ Depress the spindle lock button and rotate the blade bolt until the spindle locks. See Figure 18. Using the blade wrench provided, loosen and remove the blade bolt. Note: The blade bolt has left hand threads. Turn blade bolt clockwise to loosen. Remove outer blade washer. Do not remove inner blade washer. Wipe a drop of oil onto inner blade washer and outer blade washer where they contact the blade. TO REMOVE BLADE See Figures 15, 16, 17, and 18.
ADJUSTMENTS ■ Note: Many of the illustrations in this manual show only portions of your compound miter saw. This is intentional so that we can clearly show points being made in the illustrations. Never operate your saw without all guards securely in place and in good operating condition. If the edge of the framing square and the throat plate in the miter table are not parallel as shown in figures 20 and 21, adjustments are needed. FENCE SQUARING THE MITER TABLE TO THE FENCE See Figures 19 – 22.
ADJUSTMENTS ■ ■ Using a 6 mm hex key, loosen the socket head screws securing the fence. See Figure 22. Adjust the fence left or right until the framing square and throat plate are parallel. 6 mm SOCKET HEAD SCREW(S) The edge of the square and the saw blade should be parallel as shown in figure 23. 31 .6 2 4 5 FENCE 30 22 .5 15 45 4 0 31.62 30 22.5 15 BLADE FRAMING SQUARE MITER TABLE VIEW OF BLADE SQUARE WITH FENCE Fig. 23 45 45 31 .6 30 22.5 30 15 0 15 .6 31 22.5 FENCE Fig.
ADJUSTMENTS SQUARING THE BLADE TO THE MITER TABLE See Figures 27 – 31. FENCE ■ Remove battery pack from saw. WARNING: 31 .6 2 4 5 Failure to remove battery pack from your saw could result in accidental starting causing possible serious personal injury. 30 22 ■ .5 15 45 4 0 31.62 30 22.5 15 BLADE MITER TABLE VIEW OF BLADE NOT SQUARE WITH FENCE, ADJUSTMENTS ARE REQUIRED ■ ■ ■ FRAMING SQUARE ■ ■ Fig.
ADJUSTMENTS ■ ■ If the top or bottom of the saw blade angles away from the square as shown in figures 28 and 29, adjustments are needed. ■ E Using a 10 mm wrench or adjustable wrench, loosen the lock nut securing positive stop adjustment screw. Also loosen bevel lock knob. Adjust positive stop adjustment screw to bring saw blade into alignment with the square. See Figure 30. MITER TABLE FENCE 2 4 5 .6 31 22.5 0 31.62 30 22.
ADJUSTMENTS ■ PIVOT ADJUSTMENTS Note: These adjustments were made at the factory and normally do not require readjustment. Use the 5 mm hex key provided to adjust the depth stop adjustment screw. The saw blade is lowered by turning the screw counterclockwise and raised by turning the screw clockwise. TRAVEL PIVOT ADJUSTMENT ■ The saw arm should rise completely to the up position by itself.
OPERATION TO REMOVE BATTERY PACK See Figure 32. WARNING: ■ Always wear safety goggles or safety glasses with side shields when operating tools. Failure to do so could result in objects being thrown into your eyes, resulting in possible serious injury. ■ Locate latches on each side of battery pack and depress to release battery pack from your saw. Remove battery pack from your saw. APPLICATIONS (Use only for the purposes listed below) ■ Cross cutting wood and plastic.
OPERATION CUTTING WITH YOUR COMPOUND MITER SAW Note: You can quickly locate 0°, 22-1/2° left or right, 30° left or right, and 45° left or right on the scale. The miter table can be seated in one of the detent stop notches, located in the miter table frame. WARNING: When using a work clamp or C-clamp to secure your workpiece, clamp workpiece on one side of the blade only. The workpiece must remain free on one side of the blade to prevent the blade from binding in workpiece.
OPERATION BEVEL CUT See Figures 34 and 35. blade at the end of the cut, jamming the blade. See Figures 40 and 41. A bevel cut is made by cutting across the grain of the workpiece with the blade angled to the fence and miter table. A bevel cut is made with the miter table set at the zero degree position and the blade set at an angle between 0° and 45°.
OPERATION COMPOUND MITER CUT See Figures 36 and 37. TO MAKE A COMPOUND CUT WITH YOUR MITER SAW: A compound miter cut is a cut made using a miter angle and a bevel angle at the same time. This type of cut is used to make picture frames, cut molding, make boxes with sloping sides, and for certain roof framing cuts. To make this type of cut the miter table must be rotated to the correct angle and the saw arm must be tilted to the correct bevel angle.
OPERATION WARNING: 5 To avoid serious personal injury, always keep your hands outside the no hands zone; at least 3 in. (8 cm) from blade. Never perform any cutting operation freehand (without holding workpiece against the fence). The blade could grab the workpiece if it slips or twists. 31.62 4 0 15 45 31.62 30 22.5 22.5 30 31.62 45 LONG WORKPIECE 45° X 45° COMPOUND MITER CUT 15 ■ Long workpieces need extra supports. Supports should be placed along the workpiece so it does not sag.
OPERATION CUTTING COMPOUND MITERS To aid in making the correct settings, the compound angle setting chart below has been provided. Since compound cuts are the most difficult to accurately obtain, trial cuts should be made in scrap material, and much thought and planning made, prior to making your required cut. PITCH OF SIDE 0° 5° 10° 15° 20° 25° 30° 35° NUMBER OF SIDES 4 5 6 M- 45.00° M- 36.00° M- 30.00° B- 0.00° B- 0.00° B- 0.00° M- 44.89° M- 35.90° M- 29.91° B- 3.53° B- 2.94° B- 2.50° M- 44.56° M- 35.
OPERATION CUTTING CROWN MOLDING LAYING MOLDING FLAT ON THE MITER TABLE See Figure 39. Your compound miter saw does an excellent job of cutting crown molding. In general, compound miter saws do a better job of cutting crown molding than any other tool made. In order to fit properly, crown molding must be compound mitered with extreme accuracy.
OPERATION 45 31 .6 30 30 22.5 15 0 15 31 .6 22.5 RIGHT Fig. 40 Type of Cut 33.85° Right side, inside corner 1. Bottom edge of molding against fence 2. Miter table set left 31.62° 3. Save left end of cut 33.85° Left side, outside corner 1. Bottom edge of molding against fence 2. Miter table set left 31.62° 3. Save right end of cut 33.85° Right side, outside corner 1. Top edge of molding against fence 2. Miter table set right 31.62° 3.
MAINTENANCE Do not abuse power tools. Abusive practices can damage tool as well as workpiece. WARNING: When servicing, use only identical Ryobi replacement parts. Use of any other part may create a hazard, cause product damage or create a risk of serious personal injury. WARNING: Do not attempt to modify this tool or create accessories not recommended for use with this tool. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.
OPERATOR'S MANUAL 8-1/4 in. (209.6 mm) Cordless Compound Miter Saw Model MS180 • SERVICE Now that you have purchased your tool, should a need ever exist for repair parts or service, simply contact your nearest Ryobi Authorized Service Center. Be sure to provide all pertinent facts when you call or visit. Please call 1-800-525-2579 for your nearest Ryobi Authorized Service Center. You can also check our web site at www.ryobitools.com for a complete list of Authorized Service Centers. • MODEL NO.