USER MANUAL INDUSTRIAL & COMMERCIAL SERIES (60° Shoulder Profile) Dual Blade Tenon Cutters Lumberjack Tools Inc. PO Box 730 Chippewa Falls, WI 54729 www.lumberjacktools.com Email: info@lumberjacktools.
About Your Product Thank you for purchasing our Dual Blade - Tapered Shoulder Tenon Cutter! Lumberjack engineers, along with our craftsmen, have designed the safest, easiest-to-use tenon cutters on the market. By combining old world skills with 3D CAD modeling and CNC manufacturing, we have created the ideal tenon cutter: straight tenons, smooth finish, precision operation, and long life. Dual-bladed tenon tools will cut a tenon in half the time of a single-bladed tool.
SAFETY Before beginning any project, carefully read and follow ALL safety and operational instructions for any tools or devices you will be using. Failure to do so may cause physical harm to yourself or those around you. If you feel uncomfortable using our tenon cutters or any other tool, STOP immediately. Lumberjack Tools assumes no responsibility for injury caused to the operator, bystander, or tools used in conjunction with the use or misuse of our tenon cutters.
Industrial Series ONLY Quick Stop Installation 1 ● Install the quick stop pin through the tool body ● Secure with the supplied acorn nut 2 ● The length of the tenon is determined by measuring from the top of the blade to the bottom of the Quick Stop Pin X ● In the image to the left, dimension “X” represents the length of the tenon 4
Setting the Blades ● Install and secure the blades with the Button Head Cap Screws ● Take care to keep the blade offset of both blades equal (see below) TIP Max Log Capacity Max Log Series Dia. TTA0750 3.25” TTA1000 3.50” TTA1500 4.00” TTA2000 4.50” TTA2500 5.00” TTA3000 5.50” TAC1000 3.50” TAC1500 4.00” TAC2000 4.
Would you like to cut smoother tenons? Included with your tool are the TB2500 Blade Shims Pros of using shims: ● Smoother tenon ● Reduced drill torque ● Less aggressive blade bite Cons of using shims: ● Increased time to cut ● Slightly weaker glue joint Installing shims: ● Place a shim underneath a TB2500 blade and secure both with screws as shown ● The shim should NOT extend into cutting area or cover the sharp edge of the blade ● If installed properly the right edge of the shim will be flush with the ri
Determine tenon length before cutting ● The key is to have a gap between the end of the tenon and bottom of the mortise hole Hole Depth Tenon Length 1/8” to 1/4” Gap ● This can be done by making the tenon 1/8” to 1/4” shorter than the mortise hole is deep Calculated Tenon Length Cut Mark Desired Tenon Length Log Diameter Tenon Size Gather the following information and use the calculation provided below: ● Tenon Size ● Log Diameter ● Desired tenon length Cut Mark = [(Log Dia - Tenon Size) x .
Cutting Tenons WARNING: If the log comes loose or unclamped while cutting the tenon, DO NOT drop the drill or try to grab the log! Stop the drill and remove it from the end of the log. Re-secure the log, and resume cutting 1 ● Obtain the log you want to tenon ● Cut it to length and make sure the ends are flat.
Cutting Tenons (cont.) ALWAYS unplug the drill before adjusting the blades or adjusting the chuck 4 ● Carefully install the tenon cutter into an unplugged 1/2” drill, and tighten it firmly.
Drilling Holes (Mortise) 1 ● Measure and mark the locations of all holes before drilling ● Place the center of the bit on the desired hole location ● Take care to hold the drill perpendicular to the log ● Use a forstner bit (or spade bit) to drill the hole 2 ● Drill mortise between 1/3 and 1/2 of the log diameter 1/3 Diameter 1/2 Diameter ● Do not drill more than 1/2 of the log diameter unless a specific project calls for a deeper mortise Additional Tips ● It takes time to master using these tools ● Ma
Maintenance ● Body - Cleaning ○ Keep the tenon cutter body clear of sap and other build-up ○ Always remove the blades before cleaning ○ Clean the tool with a solvent (such as mineral spirits) WARNING: ALWAYS HANDLE THE BLADES WITH EXTREME CARE! FAILURE TO DO SO MAY RESULT IN SERIOUS INJURY ● Blades - Care ○ Always wipe blades with a thin film of oil at the end of the day to help prevent oxidation - Cleaning ○ Clean the blades with a solvent (such as mineral spirits) and immediately apply a thin film of oil
Troubleshooting PROBLEM CAUSE • Log is larger than tool will • Tool Skips off accept to one side or bounces around • Not enough pressure is being applied • Log is larger than tool will accept SOLUTION • Taper down the end of the log with a draw knife • Lean into drill with body • Taper down the end of the log with a draw knife • Position blades so they are • Blades are slid too far back • Not cutting log back no further than 5/16" • Blades are dull • Sharpen blades • Not applying enough • Purchase new b
