OPERATOR’S MANUAL 7-1/4 in., 18 Volt Compound Miter Saw P551 45 battery and charger sold separately Your miter saw has been engineered and manufactured to our high standard for dependability, ease of operation, and operator safety. When properly cared for, it will give you years of rugged, trouble-free performance. WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using this product. Thank you for your purchase.
TABLE OF CONTENTS Introduction...................................................................................................................................................................... 2 Warranty........................................................................................................................................................................... 2 General Safety Rules..................................................................................
GENERAL SAFETY RULES USE RECOMMENDED ACCESSORIES. Consult the operator’s manual for recommended accessories. The use of improper accessories may result in injury. WARNING: Read and understand all instructions. Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury. NEVER STAND ON TOOL. Serious injury could occur if the tool is tipped or if the cutting tool is unintentionally contacted. READ ALL INSTRUCTIONS CHECK DAMAGED PARTS.
GENERAL SAFETY RULES NEVER START A TOOL WHEN ANY ROTATiNG COMPONENT IS IN CONTACT WITH THE WORKPIECE. For use with 18 V nickel-cadmium and 18 V lithium-ion battery packs, see tool/appliance/ battery pack/charger correlation supplement 987000-432. DO NOT operate A tool while under the influence of drugs, alcohol, or any medication.
SPECIFIC SAFETY RULES Always stay alert! Do not allow familiarity (gained from frequent use of your saw) to cause a careless mistake. ALWAYS REMEMBER that a careless fraction of a second is sufficient to inflict severe injury. Never hand hold a workpiece that is too small to be clamped. Keep hands clear of the cutting area. NEVER reach behind, under, or within three inches of the blade and its cutting path with your hands and fingers for any reason.
SYMBOLS The following signal words and meanings are intended to explain the levels of risk associated with this product. SYMBOL SIGNAL MEANING DANGER: Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury. WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury. CAUTION: Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
GLOSSARY OF TERMS Push Blocks (jointer planers) Device used to feed the workpiece over the jointer planer cutterhead during any operation. This aid helps keep the operator’s hands well away from the cutterhead. Push Blocks (flooring and table saws) Device used to hold the workpiece during cutting operations. This aid helps keep the operator’s hands well away from the blade. Push Sticks (flooring and table saws) Device used to push the workpiece during cutting operations.
FEATURES PRODUCT SPECIFICATIONS Cutting Capacity with Miter at 0°/Bevel 0°: Maximum lumber sizes...................... 1-1/2 in. x 4-1/4 in. Arbor.......................................................................... 5/8 in. Cutting Capacity with Miter at 45°/Bevel 0°: Maximum lumber sizes.............................1-1/2 in. x 3 in. Blade Diameter.......................................................7-1/4 in. No Load Speed..................................... 4,500 r/min.
FEATURES KNOW YOUR COMPOUND MITER SAW Lock Pin See Figure 1. The safe use of this product requires an understanding of the information on the tool and in this operator’s manual as well as a knowledge of the project you are attempting. Before use of this product, familiarize yourself with all operating features and safety rules. Miter Lock lever laser switch 7-1/4 in. BLADE REAR BRACKET/ Carrying Handle A 7-1/4 in. blade is included with the compound miter saw. It will cut materials up to 1-1/2 in.
FEATURES SWITCH TRIGGER Switch lock See Figure 4. The saw will not start until you depress the switch lock with your thumb then squeeze the switch trigger. To prevent unauthorized use of the compound miter saw, remove the battery pack, and lock the switch in the off position. To lock the switch, install a padlock (not included) through the hole in the switch trigger. A lock with a long shackle of 5/16 in. diameter may be used. When the lock is installed and locked, the switch is inoperable.
LOOSE PARTS LIST The following items are included with your compound miter saw: Dust Bag Rear Bracket/Carrying Handle Work Clamp Operator’s Manual Blade Wrench WORK CLAMP DUST BAG blade wrench rear bracket/ carrying handle Fig. 6 WARNING: The use of attachments or accessories not listed might be hazardous and could cause serious personal injury.
ASSEMBLY UNPACKING WARNING: This product requires assembly. To prevent accidental starting that could cause serious personal injury, always remove the battery pack from the tool when assembling parts. Carefully lift miter saw base from the carton by the “D” handle and the saw base, and place it on a level work surface. WARNING: WARNING: Do not use this product if any parts on the Loose Parts List are already assembled to your product when you unpack it.
ASSEMBLY WARNING: dust bag Always make sure the compound miter saw is securely mounted to a workbench or an approved workstand. Failure to heed this warning can result in serious personal injury. exhaust port Mounting Holes See Figure 8. If not using a stand, the saw should be mounted to a firm supporting surface such as a workbench. Four bolt holes have been provided in the saw base for this purpose. Each of the four mounting holes should be bolted securely using 1/4 in.
ASSEMBLY WORK CLAMP See Figure 10. The work clamp provides greater control by clamping the workpiece to the fence. It also prevents the workpiece from creeping toward the saw blade. This is very helpful when cutting compound miters. Depending on the cutting operation and the size of the workpiece, it may be necessary to use a C-clamp instead of the work clamp to secure the workpiece prior to making the cut.
ASSEMBLY To Install/replace the Blade See Figures 11 - 12. WARNING: A 7-1/4 in. blade is the maximum blade capacity of the 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. Either of these situations could result in a serious accident and can cause serious personal injury. Spindle Lock Button 45 33 .
ASSEMBLY Note: Many of the illustrations in this manual show only portions of the compound miter saw. This is intentional so that we can clearly show points being made in the illustrations. Never operate the saw without all guards securely in place and in good operating condition. framing square MITER FENCE MITER TABLE Miter lock lever SQUARING THE MITER TABLE TO THE FENCE See Figures 13 - 16. Remove the battery pack from the tool.
ASSEMBLY Socket Head Screw(s) Socket Head Screw(s) Miter lock lever MITER FENCE Blade MITER TABLE 45 45 31.6 30 miter FENCE 22.5 15 0 15 22.5 30 31.6 framing square VIEW OF Blade SQUARE WITH FENCE Fig. 17 Fig. 16 SQUARING THE BLADE TO THE FENCE MITER FENCE See Figures 16 - 19. Remove the battery pack from the tool. Pull the saw arm all the way down and engage the lock pin to hold the saw arm in transport position. Lift the miter lock lever.
ASSEMBLY SQUARING THE BLADE TO THE MITER TABLE See Figures 20 - 23. Remove the battery pack from the tool. Pull the saw arm all the way down and engage the lock pin to hold the saw arm in transport position. BEVEL LOCK KNOB Lift the miter lock lever. MITER FENCE Rotate the miter table until the pointer aligns with zero on the miter scale. Push the miter lock lever down to lock the miter table. blade Loosen bevel lock knob and set saw arm at 0° bevel (blade set 90° to miter table).
ASSEMBLY Danger: Laser radiation. Avoid direct eye contact with light source. WARNING: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. aligning the laser guide line See Figure 24. Draw a line on the workpiece. When the laser guide switch is turned on it will generate a red line on the work surface.
OPERATION WARNING: WARNING: To avoid serious personal injury, keep hands outside the no hands zone, at least 3 in. from the blade. Never perform any cutting operation freehand (without holding workpiece against the fence). The blade could grab the workpiece if it slips or twists. Do not allow familiarity with tools to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury.
OPERATION BATTERY PROTECTION FEATURES CROSS CUT Ryobi lithium-ion batteries are designed with features that protect the lithium-ion cells and maximize battery life. If the tool stops during use, release the trigger to reset and resume operation. If the tool still does not work, the battery needs to be recharged. CUTTING WITH YOUR Compound MITER SAW WARNING: When using a work clamp or C-clamp to secure your workpiece, clamp workpiece on one side of the blade only.
OPERATION Align cutting line on workpiece with edge of saw blade. INDICATOR POINT Grasp the stock firmly with one hand and secure it against the fence. Use the optional work clamp or a C-clamp to secure the workpiece when possible. Before turning on the saw, perform a dry run of the cutting operation just to make sure that no problems will occur when the cut is made. 45 33 .9 Slowly lower the blade into and through the workpiece.
OPERATION Before turning on the saw, perform a dry run of the cutting operation just to make sure that no problems will occur when the cut is made. Compound Miter Cut Grasp the saw handle firmly. Depress the switch lock with thumb then squeeze the switch trigger. Allow several seconds for the blade to reach maximum speed. Slowly lower the blade into and through the workpiece. Release the switch trigger and allow the saw blade to stop rotating before raising the blade out of the workpiece.
OPERATION Place the workpiece flat on the miter table with one edge securely against the fence. If the board is warped, place the convex side against the fence. If the concave edge of a board is placed against the fence, the board could collapse on the blade at the end of the cut, jamming the blade. When cutting long pieces of lumber or molding, support the opposite end of the stock with a roller stand or with a work surface level with the saw table. See Figure 32.
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 the required cut. PITCH OF SIDE 0° 5° 10° 15° 20° 25° 30° 35° 40° 45° 50° NUMBER OF SIDES 6 7 8 M- 45.00° M- 36.00° B- 0.00° B- 0.00° M- 30.00° B- 0.00° M- 25.71° B- 0.00° M- 44.89° B- 3.53° M- 44.56° B- 7.
OPERATION cutting crown molding When setting the bevel and miter angles for compound miters, remember that the settings are interdependent; changing one angle changes the other angle as well. Keep in mind that the angles for crown molding are very precise and difficult to set. Since it is very easy for these angles to shift, all settings should first be tested on scrap molding. Also most walls do not have angles of exactly 90°, therefore, you will need to fine tune your settings.
OPERATION Bevel Angle Setting Type of Cut 33.85° Left side, inside corner 1. Top edge of molding against fence 2. Miter table set right 31.62° 3. Save left end 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.
ADJUSTMENTS POSITIVE STOP ADJUSTMENTS WARNING: See Figure 36. Note: These adjustments were made at the factory and normally do not require readjustment. To adjust: Remove the battery pack from the tool. Loosen the bevel lock knob by turning the knob counterclockwise. Square the blade to the miter table as described in the Assembly section of this manual. If the blade is out of square, adjust by tightening or loosening the positive stop adjustment screw. Retighten bevel lock knob.
ADJUSTMENTS laser adjustment screw Danger: Laser radiation. Avoid direct eye contact with light source. WARNING: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 45 33 .9 30 15 0 TO ADJUST THE LASER GUIDE See Figure 37. Set miter and bevel angles to 0º. 1 2 3 4 Use the work clamp or a C-clamp to secure a piece of scrap wood. 5 Fig. 37 Turn the saw on and make a slight cut to score the wood.
MAINTENANCE LUBRICATION WARNING: All of the bearings in this tool are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions. Therefore, no further lubrication is required. When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage. BATTERY PACK REMOVAL AND PREPARATION FOR RECYCLING WARNING: Always wear eye protection with side shields marked to comply with ANSI Z87.
NOTES 31
OPERATOR’S MANUAL 7-1/4 in., 18 Volt Cordless Compound Miter Saw P551 WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: • lead from lead-based paints, • crystalline silica from bricks and cement and other masonry products, and • arsenic and chromium from chemically-treated lumber.
