This .pdf document is bookmarked Operating Instructions and Parts Manual 20-inch Metalworking Band Saw Model VBS-2012 JET 427 New Sanford Road LaVergne, Tennessee 37086 Ph.: 800-274-6848 www.jettools.com Part No.
1.0 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.
2.0 Table of contents Section Page 1.0 Warranty and Service ..................................................................................................................................... 2 2.0 Table of contents ............................................................................................................................................ 3 3.0 Safety warnings .................................................................................................................................
maintenance purposes, use extreme caution and replace the guards immediately after completion of maintenance. 15. Check damaged parts. Before further use of the machine, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect its operation.
31. Raise or lower blade guide only when machine has been turned off and blade has stopped moving. WARNING: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to http://www.p65warnings. ca.gov. 32. Always wear leather gloves when handling saw blades. The operator should not wear gloves when operating the band saw. 33.
5.0 Specifications Model number ......................................................................................................................................... VBS-2012 Stock number .............................................................................................................................................. 414482 Blade speed ...............................................................................................................................................
8.0 Electrical connections 6.0 Uncrating and assembly 1. Finish uncrating the band saw. Contact your distributor if any damage has occurred during shipping. 2. Remove any preservative with kerosene or diesel oil. Do not use gasoline, paint thinner, or any cellulose-based product, as these will damage painted surfaces. 3. Remove two socket head cap screws from left side of vertical column. Attach shear assembly (A, Figure 1) to column by inserting screws. 4.
control panel. Insert key and turn to 3 o’clock position to turn on power to control panel. 9.0 Controls Emergency Stop Switch (K, Figure 3) – Press to stop all machine functions. Turn 90° to reset. Low/High Range Shift Lever (B, Figure 2) – Pull toward front of machine to shift into low speed range. Push toward rear of machine to shift into high speed range. CAUTION: Do not move speed range lever while machine is running. Adjust only when machine is stopped.
Figure 6 Figure 4 Blade Tension Handwheel (S, Figure 5) – located on underside of upper frame. Turn clockwise to tension blade; counterclockwise to release tension on blade. 10.0 Adjustments Blade Tracking Handwheel (T, Figure 5) – located at upper rear of saw. Turn clockwise to track blade toward front of blade wheel. Turn counterclockwise to track blade toward rear of blade wheel. All adjustments or repairs to machine must be done with power off and machine disconnected from power source.
4. Use blade tension indicator (D, Figure 9) as reference only. Blade should be tensioned using the finger pressure method. Figure 10 Figure 9 10.2 Blade tracking Blade tracking may be required periodically depending upon blade size and tension. The blade must be tensioned as outlined in section 10.1 Blade tensioning. Disconnect machine from power source and open both blade wheel doors. Shift high-low gear box lever into neutral position.
Carbide Tipped – for cutting unusual materials such as uranium, titanium, or beryllium. down toward table. NOTE: If teeth will not point downward regardless of blade orientation, the blade is inside-out. Twist blade outside-in and reinstall. 7. 11.2 Tooth shape Verify that blade rests against ball bearing (Figure 11), not behind it. Note: When cutting thin materials, the rule for blade pitch is to have a minimum of two teeth engaging the material being cut at all times.
• Run the bandsaw with blade centered in upper and lower guides, and guide fingers adjusted as close as possible without touching the blade or weld joint. Never adjust guide fingers while blade is running. Failure to comply may cause serious injury. 11.7 Blade breakage Band saw blades are subject to high stresses and breakage may sometimes be unavoidable. However, many factors can be controlled to help prevent most blade breakage. Here are some common causes for breakage: 1. 2. 3. 4. 5. 6. 7.
2. Carefully clean ends of blade which will contact welder jaws. Remove any dirt, oil, scale and oxide. this time from the weld appearance. See Figure 16 for examples of incorrect welds. 11. If the weld is imperfect, refer to section 15.3 for possible remedies to any problems. Make corrections before annealing. Any rust (oxide) on blade in vicinity of weld must be ground off before blade can be welded. 3. Turn pressure knob (Figure 15) to “0” position (pointed downward).
not break or crack after forming the radius. If the weld breaks, cut away welded area and repeat welding-annealing process. 6. 3. 12.5 Blade grinding Check to make sure welded section is same thickness as rest of blade. If not, grind off excess weld material using the grinder. Refer to section 12.5, Blade grinding. Keep hands away from rotating grinding wheel. Failure to comply may cause serious injury. Always heed the indicator light – when glowing, it warns that the grinder motor is running.
2. Preventing flash from becoming embedded in the blade. 3. Preventing shorts or poor electrical contact. 3. Start saw using the pushbutton. 4. Turn speed setting handwheel (C, Figure 2) to required speed. Turning handwheel clockwise increases speed; counterclockwise decreases speed. 13.0 Band saw operation Rotate speed setting handwheel only when machine is running. Consult section 9.0 for identification of the controls. Unlock the control panel using the provided key. 13.
15.0 Troubleshooting 15.1 Operating problems Table 1 Trouble Probable Cause Remedy Blade has been improperly welded. Re-weld blade. See section 12.3 Blade not installed properly. Set guide inserts closer, and increase blade tension. Feeding workpiece too forcefully. Decrease feed rate. Incorrect choice of blade. Use proper width blade for radius or wavy line cutting. Blade tooth has improper set. File to proper set or replace blade. Inadequate blade tension. Increase tension.
15.2 Mechanical and electrical problems Table 2 Trouble Machine will not start/restart or repeatedly trips circuit breaker or blows fuses. Probable Cause No incoming power. Cord damaged. Overload automatic reset has not reset. Band Saw frequently trips. Building circuit breaker trips or fuse blows. Switch or motor failure (how to distinguish). Motor overheated. Machine will not start/restart or repeatedly trips circuit breaker or blows fuses (cont.) Motor failure. Miswiring of the unit.
15.3 Welded blade inspection Table 3 Trouble Probable Cause Remedy Weld is misaligned. Dirt or scale on clamp jaws or blade. Always keep jaws clean. Clean blade before welding. Blade ends not square. Before welding, grind cut edges of blade until they are square. Use the shear on the band saw for square cuts. Blade ends not correctly aligned when clamped in jaws. Align ends properly before clamping. Worn clamp jaws Replace clamp jaws. Clamp jaws not aligned correctly. Align jaws correctly.
15.4 Welder mechanical problems Table 4 Trouble Probable Cause Remedy Wire connection is poor; connecting point of welding switch is bad. Change switch, or grind the connecting port with a file. Transformer burned out. Change transformer, or rewire it. Blade has oil on it. Wipe off any oil. Blade ends have rust. Grind off rust. Welding switch is cutting off late. Screw welding switch connecting nut tighter. Welding press too weak. Rotate pressure selector knob accordingly.
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17.0 Typical Band Saw Operations Figure 20 18.0 Replacement Parts Replacement parts are listed on the following pages. To order parts or reach our service department, call 1800-274-6848 Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately. Non-proprietary parts, such as fasteners, can be found at local hardware stores, or may be ordered from JET.
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18.1.3 VBS-2012 Band Saw – Parts List Index No Part No Description Size Qty Control Panel Assembly 6600 .......... VBS2012-6600 .......... Push Button - On ..................................................... ...................................... 1 6602 .......... VBS2012-6602 .......... Push Button – Off .................................................... ...................................... 1 6610 .......... VBS2012-6610 .......... Emergency Off Switch ............................................
Lower Wheel Assembly 3010 .......... VBS1220A-301 ......... Lower Wheel ............................................................ ...................................... 1 3020 .......... VBS-1220A-302 ........ Rubber Tire .............................................................. ...................................... 1 .................. VBS2012-301 ............ Lower Wheel with Tire ............................................. ...................................... 1 3030 .......... VBS2012-3030 .
G6304 ....... BB-6304 .................... Ball Bearing * ........................................................... ...................................... 1 L4030 ........ VBS2012-L4030 ........ Oil Seal * .................................................................. ...................................... 1 * ................. VBS2012-0550CP ..... Gear Box Assembly Complete................................. ...................................... 1 8422 .......... VBS2012-8422 ..........
7310 .......... VBS2012-7310 .......... Speed Readout Detector* (s/n 6045651 and higher) ..................................... 1 7330 .......... VBS1220M-661 ......... Digital Tachometer................................................... ...................................... 1 9030 .......... VBS2012-9030 .......... Handwheel ............................................................... ...................................... 1 BV875 ....... VBS2012-BV875 ....... Cog Belt .................................
Shear Assembly 1910 .......... PR-EV-1910 .............. Spindle Bushing * .................................................... ...................................... 4 1920 .......... PR-EV-1920 .............. Spindle Lift * ............................................................ ...................................... 1 1930 .......... PR-EV-1930 .............. Blade Shaft * ............................................................ ...................................... 1 1940 ..........
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427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.jettools.
