This .pdf document is bookmarked Operating Instructions and Parts Manual 14-inch Vertical Band Saws Models: J-8201, J-8203, J-8201VS, J-8203VS JET 427 New Sanford Road LaVergne, Tennessee 37086 Ph.: 800-274-6848 www.jettools.com Part No.
Warranty and Service JET warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair, please contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday. Warranty Period The general warranty lasts for the time period specified in the literature included with your product or on the official JET branded website. • JET products carry a limited warranty which varies in duration based upon the product.
Table of contents Section Page Warranty and Service ............................................................................................................................................ 2 Table of contents................................................................................................................................................... 3 Warning ............................................................................................................................................
Warning - Misuse of this machine can cause serious injury. - For safety, machine must be set up, used and serviced properly. - Read, understand and follow instructions in the Operating Instructions and Parts Manual which was shipped with your machine. When setting up machine: - Always avoid using machine in damp or poorly lighted work areas. - Always be sure the machine support is securely anchored to the floor or the work bench.
16. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in off position before plugging in. A guard or other part that is damaged should be properly repaired or replaced. 20. DIRECTION OF FEED. Feed work into a blade or cutter against the direction of rotation of the blade or cutter only. 17. USE RECOMMENDED ACCESSORIES. Consult the owner’s manual for recommended accessories. The use of improper accessories may cause risk of injury to persons. 21. NEVER LEAVE TOOL RUNNING UNATTENDED.
Safety Instructions for Sawing Systems 8. Bring adjustable saw guides and guards as close as possible to the workpiece. 9. Always wear protective eye wear when operating, servicing, or adjusting machinery. Eyewear shall be impact resistant, protective safety glasses with side shields complying with ANSIZ87.1 specifications. Use of eye wear which does not comply with ANSI Z87.1 specifications could result in severe injury from breakage of eye protection. See Figure B. 1.
Specifications JET’s 14-inch Vertical Band Saws are specially designed to effectively cut a variety of materials including wood, plastic, bakelite, composites, ferrous and non-ferrous metals. Models J-8201 and J-8203 are wood and metal cutting band saws. JET’s Model J-8201VS and J-8203VS 14-inch Variable Speed Band Saws are ideally suited for metal cutting only with an infinitely variable speed range from116 to 334 SFPM.
Introduction This manual includes operating and maintenance instructions for the JET 14-Inch Vertical Band Saws, Models J-8201, J-8203, J-8201VS, and J8203VS. This manual also includes parts listings and illustrations of replaceable parts. Band Saw Features Refer to Figures 1 through 3 for key features of the band saw. Refer to the Specifications section for additional information on the features and capabilities of the saw.
NOTE: Observe all electrical codes. Local codes or difficult environmental conditions may demand special electrical hook-ups. Always use a licensed electrician for any special electrical hook-up. Electrical Models J-8201 and J-8201VS are delivered with a 115 volt single phase motor. Models J-8203 and J8203VS are delivered with a 220/440 volt, 3-phase motor. When the saw is a 115 volt model, it is supplied with a standard 115 volt plug and power cord which can be plugged into any suitable branch circuit.
2. Grounded, cord-connected tools intended for use on a supply circuit having a nominal rating less than 150 volts: This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Figure 5A. The tool has a grounding plug that looks like the plug illustrated in Sketch A. Make sure the tool is connected to an outlet having the same configuration as the plug. No adapter is available or should be used with this tool.
Figure 5: Grounding methods 11
Installing Optional Frame Riser 12. Attach the bracket hooks to the top and bottom of the blade guard using self-tapping screws. NOTE: Refer to the illustrations in the Replacement Parts section for location of the parts used on the frame riser. 13. Attach the blade guide using the screws that held the original (shorter) guard. 1. Remove the saw blade (refer to Changing Saw Blade). 14. Remove the old (shorter) blade guide post assembly from the upper frame. 2.
Operating Controls that are based on cutting a 4-inch thick work piece using a bi-metal blade without cutting fluid.) START/STOP Switch The following conditions should also be considered: The START/STOP switch (refer to Figure 6) is used to turn on the band saw drive motor. The START switch has a molded guard which prevents inadvertent pressing of the START pushbutton. 1. Increase speed 15% for materials 1/4inchthick, 12% for 3/4-inch thick, 10% for 1 1/4-inch thick, and 5% for 2 1/2-inch thick. 2.
Adjusting Table Angle Adjustments (Refer to Figure 9.) The angle gauge is under the front of the table. The angle gauge shows the angle of the table relative to the saw blade. The table is mounted on trunnions that allow adjustment downward 45 degrees, and upward 10 degrees. Loosen the two trunnion lock knobs slightly to adjust the table angle and retighten the lock knobs.
4. Loosen the table lock knobs and hold the table firmly against its positive leveling stop. 5. Using a machinist’s square, check to make sure the table is 90 degrees to the blade. USING LEATHER PROTECTIVE GLOVES, turn the upper drive wheel to check the squareness at a minimum of three points on the blade 6. If the table is not level, unlock the lock nut on the table leveling bolt. 7. Turn the leveling bolt as required to make the table square to the blade. 8.
Changing Pulley-to-Belt Position clutch handle is all the way in, or all the way out, so the clutch dogs are in full engagement when the saw is started. 4. Close the pulley case door. 5. Plug the electrical cord into the power source or close the circuit breaker on the branch circuit. WARNING: NEVER attempt to change pulley shaft positions while the saw is running. The saw must be turned off and power disconnected any time pulley shaft positions are being changed.
12. The weight of the motor should provide sufficient tension so the middle of the small drive belt is displaced approximately the thickness of the belt. (The high speed belt is adjusted at the same time as the smaller belt.) Maintenance This section contains periodic maintenance recommendations and maintenance procedures. 13. Set the drive clutch to the desired position (IN or OUT). Changing Saw Blade WARNING: The saw must be turned off and power disconnected any time saw blades are being changed. 14.
9. USING LEATHER GLOVES AND ANSI Z87.1 EYEWEAR TO PROTECT YOURSELF FROM THE CUTTING BLADE, carefully remove the blade from the drive wheels. Remove the blade out of the saw table through the table. 10. Hang the removed blade in a safe place. NOTE: Clean out the interior of the saw with a shop vacuum. Examine the bearings and other exposed mechanisms of the saw. 11. Using protective gloves, carefully ease the replacement blade into the table slot and over the upper and lower drive wheels.
Draining and refilling the reduction gearbox 19. Adjust the upper support assembly so the support bearing just contacts the back edge of the saw blade. WARNING: The saw must be turned off and power disconnected any time the gearbox lubricant is being drained or filled. 20. Adjust the upper carbide blade guides until they just make contact with the blade BEHIND THE TOOTH AREA OF THE BLADE. Then tighten the set screws securely. 21. Replace the table insert. 22. Insert the table pin into its slot. 23.
Periodic Maintenance Item Action Interval Maintenance Saw blade Listen for sound of missing teeth Whenever operating saw Replace blade when teeth are broken Observe cutting action for cleanness and accuracy Whenever operating saw Replace blade when bent — or worn — Use a wider blade for more accurate straight cuts Listen for a poor weld; a “click” as it passes through the guide blocks When changing blade Use a different blade or dress the weld with a grinder.
Troubleshooting the J-8201/8203/8201VS/8203VS Fault Probable cause Suggested remedy Excessive blade breakage 1. Material loose in vise. 1. Clamp work securely. 2. Incorrect speed or feed. 2. Refer to Figure 7 or check Machinist’s Handbook for speed/feed appropriate for the material being cut. 3. Teeth too coarse for material. 3. Check Machinist’s Handbook for recommended blade type. 4. Incorrect blade tension. 4. Adjust blade tension to the point where the blade just does not slip on the wheel.
Fault Probable cause Suggested remedy Blade is twisting 1. Blade is binding in the cut. 1. Decrease feed pressure. 2. Blade tension too high. 2. Decrease tension on blade 1. Blade guides worn 1. Replace blade guides. 2. Blade guide bearings not adjusted. 2. Adjust blade guide bearings. 3. Blade guide bearing bracket is loose. 3. Tighten blade guide bearing bracket. 1. Blade tooth pitch too coarse for workpiece. 1. Use blade with finer tooth pitch. 2. Feed too slow; feed too fast. 2.
Exploded View and Parts List – Base – Models J-8201 and J-8203 Index No Part No Description Size Qty 1 ................ J-5513834 ................. Closed Stand ........................................................... ..................................... .1 .................. J-5507565 ................. Closed Stand Assembly w/o Motor .......................... ...................................... 1 2 ................ J-5513835 ................. Door ..............................................
Exploded View and Parts List – Base – Models J-8201VS and J-8203VS Index No Part No Description Size Qty 1 ................ J-5513860 ................. Closed Stand ........................................................... ...................................... 1 2 ................ J-5513835 ................. Door ......................................................................... ...................................... 1 3 ................ 5513836 .................... Lock .....................
Exploded View – Saw Head – Models J-8201,J-8203,J-8201VS and J-8203VS 25
Parts List – Saw Head – Models J-8201,J-8203,J-8201VS and J-8203VS Index No Part No Description Size Qty 1 ................ J-5782511 ................. Upper Arm, Frame ................................................... ...................................... 1 2 ............... 5783241 .................... Dowel Pin................................................................. ...................................... 4 4 ................ 5782521 .................... Upper Wheel Sliding Bracket .......
Index No Part No Description Size Qty 67 .............. 5783091 .................... Flat Head Screw ...................................................... M5x10 ........................... 4 68 .............. 5625121 .................... Hex Cap Screw ........................................................ M6x10 ........................... 2 69 .............. TS-1482021 .............. Hex Cap Screw ........................................................ M6x12 ........................... 6 70 ........
Exploded View – Gearbox – Models J-8201 and J-8203 28
Parts List – Gearbox – Models J-8201 and J-8203 Index No Part No Description Size Qty .................. J8201-GB .................. Gearbox Complete (includes all items below, except #26 and 27) ................... 1 ................ J-5783831 ................. Housing Gearbox ..................................................... ...................................... 1 2 ................ 5513791 .................... Packing .................................................................... .........
Exploded View – Gearbox – Models J-8201VS and J-8203VS 30
Parts List – Gearbox – Models J-8201VS and J-8203VS Index No Part No Description Size Qty 1 ................ -5313790 ................... Housing Gearbox ..................................................... ...................................... 1 2 ................ 5513791 .................... Packing .................................................................... ...................................... 1 3 ................ 5783861 .................... Plug.........................................
Exploded View and Parts List – 5782181 Optional Riser Block – All Models Index No Part No Description Size Qty .................. 5782181 .................... Riser Block Assembly (includes all items below) ..... ........................................ 1 ................ J-5784511 ................. Riser Block............................................................... ..................................... 1 2 ................ 5784521 .................... Blade Guard................................
Rip Fence Assembly (Optional Equipment) Index No Part No Description Size Qty 2 ................ JWBS18-431 ............. Knob ....................................................................... ...................................... 1 3 ................ JWBS18-432 ............. Lock Handle ............................................................. ..................................... .1 4 ................ JWBS18-433 ............. Lock Plate .....................................................
Electrical Connections 34
427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.jettools.
