This .pdf document is bookmarked Operating Instructions and Parts Manual 8-inch Variable Speed Bench Grinder Model IBG-8VS JET 427 New Sanford Road LaVergne, Tennessee 37086 Ph.: 800-274-6848 www.jettools.com Part No.
State of California to cause birth defects and, in some cases, cancer. (California Health and Safety Code Section 25249.5 et seq.) 13. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication. 1.0 IMPORTANT SAFETY INSTRUCTIONS 14. Make certain the switch is in the OFF position before connecting the machine to the power supply. WARNING – To reduce risk of injury: 1. Read and understand the entire owner's manual before attempting assembly or operation. 2.
29. Never leave the grinder running unattended. Turn power off and do not leave machine until wheels come to a complete stop. 37. Do not overtighten wheel nut. 38. Frequently clean grinding dust from beneath grinder. 30. Remove loose items and unnecessary work pieces from the area before starting the grinder. 39. Use grinding wheel suitable for speed of grinder. 40. Inspect abrasive wheels for cracks or other forms of damage. Perform a “ring test” to check wheel integrity.
2.0 Table of contents Section Page 1.0 IMPORTANT SAFETY INSTRUCTIONS ....................................................................................................... 2 2.0 Table of contents ............................................................................................................................................ 4 3.0 About this manual .......................................................................................................................................... 5 4.
3.0 About this manual This manual is provided by JET, covering the safe operation and maintenance procedures for a JET IBG-8VS Variable Speed Bench Grinder. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. Your grinder has been designed and constructed to provide consistent, long-term operation if used in accordance with the instructions set forth in this document.
4.0 Specifications Model number Stock number Motor and Electricals Motor type Horsepower (true output) Motor phase Voltage Input power Cycle Listed FLA (full load amps) On/off switch Motor speed Power cable size Power plug installed Recommended circuit size 1 Sound emission without load 2 Arbor and grinding wheels Arbor diameter Wheel size (dia.
1 subject to local/national electrical codes. specified values are emission levels and are not necessarily to be seen as safe operating levels. As workplace conditions vary, this information is intended to allow the user to make a better estimation of the hazards and risks involved only.
5.0 Setup and assembly 5.1 Unpacking Separate all parts from the packing material. Check each part against sect. 5.2, Carton contents, and make certain that all items are accounted for before discarding any packing material. (Check grinder first to verify if any parts have been premounted.) 5.2 Carton contents Refer to Figure 5-1.
5.8 Tool rests IMPORTANT: The grinder’s base plate contains ventilation holes for keeping the circuit board at an acceptable temperature. These holes should not be obstructed. If the rubber pads are removed for mounting to a table, allow an opening in the table below the grinder for air circulation. However, it is recommended the rubber pads be left on, as they allow air circulation as well as vibration dampening. Refer to Figure 5-3. Note: There is a left and a right tool rest.
6.0 Electrical connections 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. Failure to comply may cause serious or fatal injury. Electrical connections should be made by a qualified electrician in compliance with all relevant codes. This tool must be properly grounded.
Table 1 shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number (AWG), the heavier the cord. Ampere Rating When OFF button is pushed, the wheels may take a few moments to completely stop. Note: After extended operation, housing may be warm to the touch.
9. 9.1 Ring test When the wheel becomes loaded or dull, use an approved grinding wheel dresser and dress the wheel face. Before replacing a grinding wheel, perform this simple test on the replacement wheel: 8.0 Adjustments 8.1 Eye shield tilt adjustment 1. Loosen lock knob (A1, Figure 8-1). 2. Adjust eye shield (A2) to the desired tilt angle. 3. Tighten lock knob. 1. Loop a piece of string through the grinding wheel hole and suspend the wheel by holding up the string. 2.
4. 9.4.1 Adjusting concentricity Stabilize wheel by holding opposite wheel firmly, or placing a wood wedge between wheel and tool rest. If the outside face is not rotating concentric to arbor, try shifting the wheel closer to arbor centerline before tightening the nut. Another method of achieving concentricity is the use of a wheel dresser. “Dressing” is the removal of the current layer of abrasive to expose a fresh surface.
9.5 Dressing the wheels 9.6 Wire wheel brushes Below is a general procedure for dressing a grinding wheel. Wire brushing provides a fast way to remove rust scale, burrs, and paint from metal. Use coarse wire brushes for hard cleaning jobs. Use fine wire brushes for polishing and finish work. When the brush tips become dull, reverse the brush on the grinder. Use safety glasses or face shield during dressing operations. 1.
10.0 Troubleshooting IBG-8VS Bench Grinder 10.1 General electrical and mechanical problems Table 3 Symptom Possible Cause Correction * Motor will not start. Not connected to power source. Verify that plug is properly inserted into receptacle. Motor cord cut or abraded. Replace with new cord. Wheels cannot rotate because of obstruction. Unplug and turn wheel by hand to ensure free movement. Restart. Plug on cord is faulty. Replace with new plug. Low line voltage.
Symptom Possible Cause Correction * Motor slows. Motor overloaded. Reduce load to motor; do not press so hard. Low line voltage. Check power line for proper voltage. Loose connections. Inspect connections. Motor overload. Reduce load to motor; do not press so hard. Electrical circuit overload; too many electrical machines running on same circuit. Turn off other machines and try again. Incorrect fuse or circuit breaker Have electrician upgrade service to outlet.
11.0 Optional accessories These accessory items, purchased separately, are available for your JET bench grinder or buffer. Contact your dealer to order, or call JET at the phone number on the cover. 578172 IBG Stand 578173 Deluxe IBG Stand 578100 Flexible 3W LED Lamp (includes two 1/4 x 3/8 mounting screws) The following accessories are for using Grinder with the JET #414800 (JDCS-505) Dust Collection Stand: 414825 Reducer, 3 in. to 2.5 in. 414811 0.6M Hose, Heat Resistant, ø2.5 x 24.4 in. 12.
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12.1.2 IBG-8VS Variable Speed Grinder – Parts List Index No. Part No. Description Size Qty 1 ................ IBG8-01 ..................... Truss Head Screw ................................................... 3/16”-24 x 1/4” .............. 4 2 ................ IBG8-02 ..................... Rubber Pad ............................................................. ...................................... 4 3 ................ IBG8-03 ..................... Base Plate ...........................................
Index No Part No Description Size Qty 54-7 ........... IBG8-54-7.................. Square Nut .............................................................. M6 ................................. 1 55 .............. TS-0680041 .............. Flat Washer ............................................................. 3/8” ................................ 2 56 .............. TS-0060011 .............. Hex Cap Screw ........................................................ 3/8”-16 x 1/2” ................ 2 57 ..
12.2.1 IBG-Stand Assembly (OPTIONAL) – Exploded View 12.2.2 IBG-Stand Assembly (OPTIONAL) – Parts List Index No. Part No. Description Size Qty .................. 578172 ...................... IBG-Stand for Bench Grinders (#1 thru 13) ............. ...................................... 1 1 ................ IBGS-01 .................... Base......................................................................... ...................................... 1 2 ................ IBGS-02 ....................
12.3.1 DBG-Stand Assembly (OPTIONAL) – Exploded View 12.3.2 DBG-Stand Assembly (OPTIONAL) – Parts List Index No. Part No. Description Size Qty .................. 578173 ...................... DBG-Stand for Bench Grinders (#1 thru 14)............ ...................................... 1 1 ................ DBGS-01 ................... Platform ................................................................... ...................................... 1 2 ................ DBGS-02 ...................
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14.0 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.
