2” x 37” Gap Bed Lathe Model 43681 Assembly And Operation Instructions (Stand Not Included) Due to continuing improvements, actual product may differ slightly from the product described herein. ® 3491 Mission Oaks Blvd., Camarillo, CA 93011 Visit our website at: http://www.harborfreight.com To prevent serious injury, read and understand all warnings and instructions before use. Copyright© 2006 by Harbor Freight Tools®. All rights reserved.
Specifications Motor: 2HP, 1700 RPM, Reversible Max. Tool Shank Size: 3/4” x 3/4” Lathe Bit Power Required: 220 V / 60 Hz, 1-Phase Tool Post Travel: Max. 3.5” , 0.001” per scale Drive: Belt/Gear Cross Slide Travel: 5.9”, 0.002” per scale Swing Over Bed: 12” (Total Cut) Swing Over Gap: 18.8” Longitudinal Feed Range: 0.005” - 0.0165” /R Width of Gap: 7” (16 Steps) Center to Center: 37” Cross Feed Range: 0.0014” - 0.0049 /R Spindle Bore Taper: MT5 (16 Steps) Spindle Bore: 1.5” Tailstock Travel: Max 3.
SAFETY WARNING & CAUTIONS READ ALL INSTRUCTIONS BEFORE USING THIS TOOL! 1. KEEP WORK AREA CLEAN. Cluttered areas invite injuries. 2. OBSERVE WORK AREA CONDITIONS. Do not use tools in damp, wet, or poorly lit locations. Don’t expose to rain. Keep work area well lit. Do not use electrically powered equipment in the presence of flammable gases or liquids. 3. KEEP CHILDREN AWAY. Children must never be allowed in the work area. Do not let them handle machines, tools, or equipment. 4. STORE IDLE EQUIPMENT.
13. AVOID UNINTENTIONAL STARTING. Be sure that you are prepared to begin work before turning the start switch on. 14. STAY ALERT. Watch what you are doing. Do not operate this machine when you are tired. 15. Do Not operate this machine while under the influence of alcohol, drugs, or prescription medicines. 16. CHECK FOR DAMAGED PARTS. Before using any tool, any part that appears damaged should be carefully checked to determine that it will operate properly and perform its intended function.
Basic Components and Features of your #43681 Gap Bed Lathe Reference A C D E F G H I J K L M N O P Q R S Description Press Switch Emergency Stop Control Indicator Light Gear Box Direction Control Speed Control A Speed Control B Oil Gauge Chuck Bedway Tool Holder Tool Post Clamping Lever Compound Slide Steady Rest Tailstock Quill Tailstock Clamping Lever Tailstock Tailstock Handwheel Reference T U V W X Y Z AA BB CC EE FF GG HH KK MM Description Tailstock Base Lead Screw Control Lever Thread Dial Half Nu
Unpacking, Assembly, and Set up. Basic assembly and adjustment of your new lathe was completed before being shipped. Final assembly and adjustments must be made before operating your new lathe. First find a suitable location for your lathe. 1. The floor or work table which you place your lathe on must be level, solid, and resistant to vibration. 2. Your lathe should be positioned in an area which is protected from the weather, especially water and moisture. 3.
Hoisting and Leveling this machine WARNING: DO NOT ATTEMPT TO LIFT THE LATHE BY YOURSELF. This tool weighs over 800 lb., and cannot be lifted safely by one or several strong men. Be sure this lathe is balanced on the hoist or lift you will use to move it before moving. 1. Before hoisting, lifting or moving this machine, move the tailstock and apron to the far right end of the bedway (away from the headstock) and lock them in place there.
The Headstock The headstock includes a Gear box (E) which contains gears and a belt drive. The gears are controlled by controls (F), (G), and (H). The belt drive transmits the motor power to the drive system of the machine. 1. The motor and drive belt are installed and adjusted when delivered. However, you should check the adjustment of the drive belt before using this lathe. 2. Check the belt tension by pressing in the middle with your finger. You should be able to depress it approximately 1/2 inch.
SPEED AND POWER CONTROLS urn your lathe on and off, and control its speed and direction from the main control panel. Speed and Power Controls r Switch SPEED AND You can and off POWER and speed and direction from the main control panel. the power switch toturn turnlathe the on machine ON.control PushCONTROLS the switch again to turn n turn your lathe on and off, and control its speed and direction from the main control panel. ne OFF.
Apron The function of the Apron is to support the toolpost, and to be carried along the workpiece by the lead screw. 1. Use the Control Lever (V) to start the motion of the Spindle, and to rotate it forward or reverse. 2. To operate the lever, push it toward the headstock, then move it up or down. Moving the lever down will cause the spindle to rotate forward, moving it up will cause the spindle to rotate in reverse. Placing the lever in the middle will cause the spindle not to rotate. 3.
The Threading Dial When the threads on the lead screw and on the workpiece are not in an integer ratio, it is necessary to use the threading dial to control successive cuts. Determine this ratio by dividing the desired TPI of the workpiece (for example 24 TPI) by the thread pitch of the lead screw (8 TPI). This example results in an integer ratio of 3:1. A desired thread pitch of 26 TPI (for example) on the workpiece would require use of the threading dial.
Compound Slide The tool is moved along the workpiece by the motion of the apron and its components. The apron may be power-driven by the lead screw, or may be moved by hand using the handwheels. 1. The Saddle Handwheel (AA) may be used to move the apron with its attached tool post and tools along the rotating axis of the workpiece. This is used to make longitudinal cuts. 2. The Cross Slide Handwheel (Z) is used to move the tool post horizontally across the axis of the workpiece.
Tailstock The tailstock slides along the bed way freely, and may be used to secure the free end of a rotating workpiece. The tailstock is clamped to the bedway using 1. the Tailstock Clamping Lever (Q). The Quill (P) can be rotated inward and outward, 2. using the Tailstock Handwheel (S). The Quill can be locked in place using the Quill Lock Lever. The quill is shipped with a “dead end” which may 3. be inserted into the quill.
Lubrication Headstock Lubrication. 1. The headstock gears should be lubricated with No. 70 (HL-70) Gear Compound. Check them periodically, and apply lubrication whenever they appear dry. Do not apply excessive grease, since you do not want to get grease on the drive belt. 2. The oil in the headstock should be changed regularly. When the machine is new, change the oil after the first 15 days of use. Change it again after the next 45 days of use. Thereafter, change the oil after each 6 months.
Maintenance WARNING: For your own safety, turn the switch OFF and remove plug from electrical outlet before performing any maintenance work on the lathe. 1. Frequently blow out any dust accumulation inside the motor. 2. A coat of automotive wax to the bed will help keep the surfaces clean, and allow the tool rest and tailstock to move freely. 3. If the power cord is damaged, worn, or cut in any way have it replaced by a qualified electrician right away.
NOTE: Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts. SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
NOTE: Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts. SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
SKU 43681 For technical questions, please call 1-800-444-3353.
WARRANTY INFORMATION Limited 90 day/1 year warranty Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser for a period of ninety days from date of purchase that the motor/engine, the belts (if so equipped), and the blades (if so equipped) are free of defects in materials and workmanship.
