This .pdf document is bookmarked Operating Instructions and Parts Manual 2-Wheel Belt Grinder 3” x 79” Model BG-379 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 ..................................................................................................................................
safety equipment, such as face or dust masks that are specifically designed to filter out microscopic particles. 10. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication. 3.0 Safety Warnings 1. Read and understand the entire owner’s manual before attempting assembly or operation. 2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these warnings may cause serious injury. 3.
26. Maintain tools with care. Keep cutting tools sharp and clean for the best and safest performance. Follow instructions for lubricating and changing accessories. 31. Do not grind magnesium, as it may create a fire hazard. 27. Turn off machine and disconnect from power before cleaning. Use a brush or compressed air to remove chips or debris — do not use your hands.
5.0 Features Figure 1 1. 2. 3. 4. 5. 6. 7. 8. 9. Spark trap Eye shield Front work support Contact wheel Top work support Belt guard Tracking adjustment knob Belt tension release lever Industrial switch with overload protection 10. 11. 12. 13. 14. 15. 16. 17. 18.
6.0 Specifications Model Number ....................................................................... BG-379-1 .................................................... BG-379-3 Stock Number ............................................................................414610 ........................................................ 414615 Materials: Pedestal and Base ..................................................................... steel ............................................................
be connected. Place a warning placard on the fuse holder or circuit breaker to prevent it being turned on while the machine is being wired. 7.0 Set-Up and Assembly Grounding Instructions 7.1 Floor Diagram This machine must be grounded. In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. Improper connection of the equipment-grounding conductor can result in a risk of electric shock.
undersized cord will cause a drop in line voltage resulting in loss of power and overheating. 5. Move tension release lever (clockwise) to tighten belt. (8) upward Use Table 1 as a general guide in choosing the correct size cord. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord. 6. Close side cover and reinstall spark trap (1). 8.3 Belt tension adjustment Belt tension has been adjusted by the manufacturer.
11.0 Troubleshooting Trouble Grinder will not start. Probable Cause Remedy No incoming power. Check all connections. Fuse blown, or circuit breaker tripped. Replace fuse, or reset circuit breaker. Cord damaged. Replace cord. Starting capacitor malfunction (single phase model). Replace starting capacitor. Improper belt splice. Check belt for irregular seam or shape. Excessive or insufficient belt tension. Set tension so belt is just taut. Worn contact surfaces.
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12.1.3 BG-379 Belt Grinders – Parts List Index No. Part No. Description Size Qty 1 ................ S-75B-000G .............. Stand ....................................................................... ...................................... 1 2 ................ TS-2342121 .............. Nylon Lock Hex Nut ................................................. M12 ............................... 3 3 ................ TS-2360121 .............. Flat Washer ......................................................
Index No. Part No. Description Size Qty 37 .............. S-75-1029 ................. Eye Protection Cover ............................................... ...................................... 1 38 .............. TS-1540021 .............. Hex Nut .................................................................... M4 ................................. 5 39 .............. S-75-1034 ................. Block with Thread .................................................... ...................................
Index No. Part No. Description Size Qty 85-16 ......... S-75-85-16 ................ Grounding Copper (for 1PH).................................... ...................................... 1 .................. S-75-85-16/3 ............. Grounding Copper (for 3PH).................................... ...................................... 1 85-17 ......... S-75-85-17 ................ A.C. Contactor (for 1PH).......................................... KM................................. 1 85-18 .........
13.0 Electrical Connections – BG-379 13.1 Single phase only 13.
