OPERATOR’S MANUAL BISCUIT JOINER DOUBLE INSULATED JM82 Your biscuit joiner 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 n Introduction ...................................................................................................................................................................... 2 n Warranty ........................................................................................................................................................................... 2 �n General Safety Rules .....................................................................................................
GENERAL SAFETY RULES n Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents. n Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust or fumes. n Keep bystanders, children, and visitors away while operating a power tool. Distractions can cause you to lose control. n Avoid accidental starting. Be sure switch is off before plugging in.
GENERAL SAFETY RULES SERVICE n When servicing a tool, use only identical replacement parts. Follow instructions in the Maintenance section of this manual. Use of unauthorized parts or failure to follow Maintenance Instructions may create a risk of shock or injury. n Tool service must be performed only by qualified repair personnel. Service or maintenance performed by unqualified personnel may result in a risk of injury. SPECIFIC SAFETY RULES n Check damaged parts.
SYMBOLS Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.
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.
ELECTRICAL DOUBLE INSULATION EXTENSION CORDS Double insulation is a concept in safety in electric power tools, which eliminates the need for the usual threewire grounded power cord. All exposed metal parts are isolated from the internal metal motor components with protecting insulation. Double insulated tools do not need to be grounded. When using a power tool at a considerable distance from a power source, be sure to use an extension cord that has the capacity to handle the current the tool will draw.
FEATURES PRODUCT SPECIFICATIONS Fence Angle Adjustments ....................................... 0-135° No Load Speed ............................................... 10,000/min. Depth of Cut ........................................................0-9/16 in. Input ...............................120 V, 60 Hz, AC only, 6.0 Amps Cord Length ...............................................................10 ft. Net Weight.............................................................. 8.4 lbs. Blade ..........
FEATURES KNOW YOUR BISCUIT JOINER ANGLE SETTING SCALE See Figure 1. Before attempting to use this product, familiarize yourself with all operating features and safety rules. The adjustable fence on the biscuit joiner can be set at angles from 0° to 135°. DUAL GRIP HANDLE SWITCH TRIGGER The dual grip handle offers a choice of two grip positions for operator comfort. The biscuit joiner has a conveniently located ON/OFF switch trigger on the underside of the dual grip handle.
ASSEMBLY INSTALLING/REMOVING THE DUST BAG UNPACKING See Figure 2. The dust bag located on the rear of the biscuit joiner provides a dust collection system. Wood particles are drawn up through the base and collect in the dust bag during cutting operations. For more efficient operation, empty the dust bag when half full. To install, slide the dust bag adaptor onto the dust port on the biscuit joiner. To remove the dust bag, grasp the adaptor and pull the dust bag away from the biscuit joiner.
OPERATION When joining 1-1/2 in. thick materials, stack two biscuits, one above the other. For example, use this method when joining 2 in. x 4 in. dressed lumber. When joining even thicker materials, use additional biscuits, stacked above each other. When making edge-to-edge joints for tabletops, workbenches, cutting boards, etc. the more biscuits you use, the stronger the joint will be. WARNING: Do not allow familiarity with tools to make you careless.
OPERATION DEPTH OF CUT The biscuit joiner can be adjusted to three standard cutting depths to accommodate three standard size biscuits — #0, #10, and #20. Adjustments are made by engaging slots on the depth adjustment knob with tabs on the rear base assembly. For example, when using a #0 size biscuit, rotate the depth adjustment knob to the slot marked 0.
OPERATION FENCE HEIGHT The adjustable fence on the biscuit joiner can be moved up or down to adjust the position of the blade in relation to the top of the workpiece. A scale on each side of the fence indicates the height of the fence from the center of the blade. The fence can be positioned up to two inches from the center of the blade. However, the scale and indicator point can only be set up to 2 in. from the center of the blade. Scale marks are in increments of 1/16 in.
OPERATION MAKING EDGE-TO-EDGE JOINTS CENTERLINE MARKS See Figures 9 - 10. Edge-to-edge joinery is one of the most basic and easilyconstructed joints. n Unplug the biscuit joiner. n Prepare the workpieces by laying them side by side on a workbench in the order in which they will be assembled. n Using a square, determine the location of each biscuit spline joint and mark the center of each joint by drawing a line across each workpiece. NOTE: Mark the edges 2 in. from the ends of the workpieces.
OPERATION BUTT JOINTS BUTT JOINTS A butt joint is made by mating the end grain of one board with the edge grain of another. The bonding of glue on this type of surface is poor. However, by using biscuits you can create a strong joint that gives a mortise-and-tenon effect. BISCUIT SLOT(S) MAKING BUTT JOINTS See Figures 11 - 12. n Unplug the biscuit joiner. BISCUIT(S) n Place the two pieces of wood to be joined on a level workbench.
OPERATION T- JOINTS T-JOINT See Figure 13. A T-joint is used when the end of a board is joined to the face of another board as shown in figure 12. Attaching shelves to bookcases and inner support braces to frames are typical applications. Actual cutting of a T-joint is as simple as any other cut. However, it is critical that you mark the centerlines, mark the intersection points for each slot, and cut each slot correctly. CENTERLINE MARK(S) BISCUIT(S) MAKING T- JOINTS See Figures 14 - 15.
OPERATION CUTTING VERTICAL BOARDS See Figures 16 - 17. n Unplug the biscuit joiner. HEIGHT ADJUSTMENT KNOB n Loosen the locking knob and set the fence angle at 0°. LOCKING KNOB n Set the fence height at the desired dimension on the scale by rotating the height adjustment knob. n Retighten the locking knob. n Select the correct depth of cut setting for the biscuit size you plan to use. n Clamp the workpiece securely. n Cut each slot at the marked centerline intersection.
OPERATION MITER JOINTS See Figures 18 - 21. There are two types of miter joints that can be made using biscuits: flat miters and edge miters. Flat miters are used when making picture frames. Edge miters are used when making boxes or things where you don’t want to show the end grain of the wood. BISCUIT SLOT MAKING FLAT MITER JOINTS See Figure 18. n Unplug the biscuit joiner. n Place the pieces of wood to be joined on a level workbench.
OPERATION MAKING EDGE MITER JOINTS CUTTING EDGE MITER SLOT FROM LONG SIDE OF WORKPIECE See Figures 19 - 21. n Unplug the biscuit joiner. n Place the pieces of wood to be joined on a level workbench. n Mark the centerline of the joint on each board. n When making edge miter joints with workpieces that have different thicknesses, clamp the pieces securely to a workbench with the long sides up. This will assure that the outside surfaces will match. n Loosen the locking knob and set the fence angle at 135°.
MAINTENANCE REPLACING THE BLADE WARNING: See Figures 22 - 24. After extended use, the blade on your biscuit joiner may become dull and need replacing. If you accidentally hit a nail or other blunt object, it will break the carbide tips, which will require replacing the blade. n Unplug the biscuit joiner. When servicing, use only identical Ryobi replacement parts. Use of any other parts may create a hazard or cause product damage. WARNING: n Remove the dust bag.
MAINTENANCE n Place a screwdriver in the hole provided in the bearing plate. n Place one of the non-cutting teeth located behind each carbide-tipped cutting tooth against the screwdriver or pin and lock the blade to prevent it from rotating. DO NOT lock the blade against one of the cutting teeth. Carbide tips will break. SCREWDRIVER NON-CUTTING TOOTH BEHIND CARBIDE-TIPPED CUTTING TOOTH HEX KEY n Using a 3/16 in. hex key, remove the blade screw.
MAINTENANCE CLEANING THE BASE ASSEMBLY AND DUST PATH SHOWN WITHOUT DUST BAG SCREW(S) See Figures 25 - 27. After extended use, wood particles and resin may build up inside the base assembly of your biscuit joiner and clog the path for wood particles going into dust bag. Wood particles packing up in this area not only defeats the dustless feature of your biscuit joiner, it also makes cutting biscuit slots more difficult. n Unplug the biscuit joiner. SHOE DUST BAG PORT n Remove the dust bag.
MAINTENANCE n Using a screwdriver, remove the two screws that connect the front and rear base assemblies. n Carefully separate the front base assembly from the rear base assembly. Remove the front base assembly. NOTE: These pieces are tightly joined. It may be helpful to use a mallet to lightly tap the area where the assemblies meet. n Remove the rear base assembly.
ACCESSORIES The following recommended accessories are currently available at retail stores: n Biscuits 100 pieces ................................................................................................................................................. Size 0 n Biscuits 100 pieces ............................................................................................................................................... Size 10 n Biscuits 100 pieces .................................................
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OPERATOR’S MANUAL BISCUIT JOINER DOUBLE INSULATED JM82 • SERVICE Now that you have purchased your tool, should a need ever exist for repair parts or service, simply contact your nearest Authorized Service Center. Be sure to provide all pertinent facts when you call or visit. Please call 1-800-525-2579 for your nearest Authorized Service Center. You can also check our web site at www.ryobitools.com for a complete list of Authorized Service Centers. • MODEL NO. AND SERIAL NO.
