This .pdf document is bookmarked Operating Instructions and Parts Manual JBG Series Bench Grinders Models: JBG-6A, JBG-8A, JBG-10A Model JBG-8A shown 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 Warranty and Service .............................................................................................................................. 2 Table of Contents .................................................................................................................................... 3 Warnings ................................................................................................................................................. 4 Introduction .....................
Warnings 1. For your own safety read instruction manual before operating grinder. 2. Read and understand the entire owner’s manual before attempting assembly or operation. 3. 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. 4. Replace the warning labels if they become obscured or removed. 5. This bench grinder is designed and intended for use by properly trained and experienced personnel only.
21. Make your workshop child proof with padlocks, master switches or by removing starter keys. 22. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents. 23. DON’T USE IN DANGEROUS ENVIRONMENT. Don’t use power tools in damp or wet locations, or expose them to rain. Keep work area well lighted. Keep the floor around the machine clean and free of scrap material, oil and grease. 24. Keep visitors a safe distance from the work area. Keep children away. 25. Give your work undivided attention.
Introduction This manual is provided by JET covering the safe operation and maintenance procedures for the JET JBG Series Bench Grinders. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. This machine has been designed and constructed to provide years of trouble free operation if used in accordance with instructions set forth in this manual.
Unpacking Separate all parts from the packing material. Check each part against the Contents of the Shipping Container and make certain that all items are accounted for before discarding any packing material.
Assembly Your bench grinder requires only the assembly of the eye shields and tool rests. For your safety, do not plug the grinder into a power source until all adjustments are complete. An adjustable wrench and a Phillips screwdriver are the only tools you will need to make all normal adjustments and wheel changes on this grinder. Be sure that the bench grinder is unplugged and the power switch is in the OFF position.
Installing the Spark Guard and Eye Shield Mounting Brackets Refer to Figure 2: Parts needed: 2 Spark Guard and Eye Shield Brackets assembled from previous page 4 1/4” x 3/8” Hex Cap Screws (E) 4 1/4" Flat Washers (F) 1. Install the left spark guard and mounting bracket (A) to the left wheel housing (M) with two 1/4” x 3/8” hex cap screws (E) and two 1/4" flat washers (F). The spark guards (A1) should be adjusted to within 1/16" of the grinding wheel surface or other accessory being used. 2.
Important: The adapter illustrated in Fig. B is for use only if you already have a properly grounded two-prong receptacle. Do not modify the plug provided-if it will not fit the outlet, have the proper outlet installed by a qualified electrician. Check with a qualified electrician or service personnel if the grounding instructions are not completely understood, or if in doubt as to whether the tool is properly grounded.
Operation Adjustments A bench grinder is designed for hand-grinding operations such as sharpening chisels, screwdrivers, drill bits, removing excess metal, and smoothing metal surfaces. Eye Shield Tilt Adjustment 1. Loosen lock knob (A1, Fig. 3). 2. Adjust eye shield angle (A2, Fig. 3). A Medium Grain Abrasive Grinding Wheel is suitable for rough grinding where a considerable amount of metal must be removed or when obtaining a smooth finish is not important.
Maintenance The use of any other accessory is not recommended and may result in serious injury! For safety, turn the switch to OFF and remove plug from the power source outlet before adjusting and maintaining the bench grinder. If the power cord is worn, cut or damaged in any way, have it replaced immediately. To change a wheel (refer to Figure 4): 1. Disconnect grinder from the power source. 2.
Grinding Wheels The JET Series bench grinders come equipped with general purpose grinding wheels. Wheels vary according to types of abrasive, hardness, grit size, and structure. JET carries a full line of abrasive grinding, carbide grinding, tool sharpening, and wire wheels. Contact your local distributor for the proper grinding wheel or wire wheel brush for your application. Wire Wheel Brushes Wire brushing provides a fast way to remove rust scale, burrs, and point from metal.
Troubleshooting Problem Probable Cause Remedy Not plugged into receptacle Plug it into the power source receptacle Switch not in the ON position Turn the switch to the ON position Motor cord cut or abraded Replace with a new cord Plug on cord is faulty Replace with a new plug Fuse or circuit breaker open Re-set, may be too many machines on line Motor faulty Call JET Customer Service Department Too many electrical machines running on the same outlet Turn off other machines and try again Inco
Parts and Assembly for JBG Series Grinders Parts List Index No Part No Description Size Qty 1............... JBG6A-02P..............Shaft and Rotor Assembly ..................................................................... 1 ................. JBG8A-02P..............Shaft and Rotor Assembly ..................................................................... 1 ................. JBG10A-02P ............Shaft and Rotor Assembly ..................................................................... 1 3..
Parts List Index No Part No Description Size Qty 24 ............. JBG6A-24B..............Outer Wheel Guard – left (serial #15070001 and higher) ............................ 1 ................. JBG8A-24P..............Outer Wheel Guard – left ....................................................................... 1 ................. JBG10A-24B ............Outer Wheel Guard – left (serial #15090001 and higher) ............................ 1 25 ............. JBG6A-25B..............
Parts List Index No Part No Description Size Qty 51 ............. JBG6A-51 ................Eye Shield Plate - right. ......................................................................... 1 ................. JBG8A-51 ................Eye Shield Plate - right. ......................................................................... 1 ................. JBG10A-51 ..............Eye Shield Plate - right. ......................................................................... 1 52 .............
Assembly Drawing 18
Wiring Diagram 19
Ordering Replacement Parts To order parts or reach our service department, call 1-800-274-6848, Monday through Friday (see our website for business hours, www.jettools.com). Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately. 427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.jettools.
