JET 577101 User Manual
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Operating Instructions and Parts Manual
JBG Series Bench Grinders
Models: JBG-6A, JBG-8A, JBG-10A
JET
427 New Sanford Road Part No. M-577101
LaVergne, Tennessee 37086 Revision K 06/2015
Ph.: 800-274-6848
www.jettools.com Copyright © 2015 JET
Model JBG-8A show n
ECR TW0137
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. (See chart below)
• Accessories carry a limited warranty of one year from the date of receipt.
• Consumable items are defined as expendable parts or accessories expected to become inoperable within a
reasonable amount of use and are covered by a 90 day limited warranty against manufacturer’s defects.
Who is Covered
This warranty covers only the initial purchaser of the product from the date of delivery.
What is Co vered
This warranty covers any defects in workmanship or materials subject to the limitations stated below. This warranty
does not cover failures due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear,
improper repair, alterations or lack of maintenance.
Warranty Limitations
Woodworking products with a Five Year Warranty that are used for commercial or industrial purposes default to a
Two Year Warranty. Please contact Technical Service at 1-800-274-6846 for further clarification.
How to Get Technical Support
Please contact Technical Service by calling 1-800-274-6846. Please note that you will be asked to provide proof
of initia l p u rch a s e whe n calling. If a product requires further inspection, the Technical Service representative will
explain and assist with any additional action needed. JET has Authorized Service Centers located throughout the
United States. For the name of an Authorized Service Center in your area call 1-800-274-6846 or use the Service
Center Locator on the JET website.
More Informa tion
JET is constantly adding new products. For complete, up-to-date product information, check with your local distributor
or visit the JET website.
How State Law Appli es
This warranty gives you specific legal rights, subject to applicable state law.
Limitations on This Warranty
JET LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT.
EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN
IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
JET SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR
INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR
PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
JET sells through distributors only. The specifications listed in JET printed materials and on official JET website are
given as general information and are not binding. JET reserves the right to effect at any time, without prior notice,
those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason
whatsoever. JET
Product Listing with Warranty Period
90 Days – Parts; Consumable items; Light-Duty Air Tools
1 Year – Motors; Machine Accessories; Heavy-Duty Air Tools; Pro-Duty Air Tools
2 Year – Metalworking Machinery; Electric Hoists, Electric Hoist Accessories; Woodworking Machinery used
for industrial or commercial purposes
5 Year – Woodworking Machinery
Limited Lifetime – JET Parallel clamps; VOLT Series Electric Hoists; Manual Hoists; Manual Hoist
Accessories; Shop Tools; Warehouse & Dock products; Hand Tools
NOTE: JET is a division of JPW Industries, Inc. References in this document to JET also apply to JPW Industries,
Inc., or any of its successors in interest to the JET brand.
®
branded products are not sold in Canada by JPW Industries, Inc.
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Table of Contents
Warranty and Servic e .............................................................................................................................. 2
Table of Contents .................................................................................................................................... 3
Warnings ................................................................................................................................................. 4
Introduction ............................................................................................................................................. 6
Specifica tions ................................................................................................................ .......................... 6
Unpac king ............................................................................................................................................... 7
Contents of the Shipping Container ...................................................................................................... 7
Assembly ................................................................................................................................................ 8
Assembling the Spar k Guard and E y e Shi eld M ounting Brackets .......................................................... 8
Installi ng the Spark Guard and Eye Shield Mounting B rackets .............................................................. 9
Tool Rests ........................................................................................................................................... 9
Eye Shields .......................................................................................................................................... 9
Mounting the Gri nder ........................................................................................................................... 9
Electrical .................................................................................................................... ........................... 10
Electrical Requirements ..................................................................................................................... 1 0
Electri c al Connec tions ........................................................................................................................ 10
Extension Cords................................................................................................................................. 1 0
Operation .............................................................................................................................................. 1 1
Switch ................................................................................................................................................ 11
Precautions ........................................................................................................................................ 11
Adjustments ................................................................................................................... ....................... 1 1
Eye Shield Tilt Adjustment.................................................................................................................. 1 1
Spark Guard ...................................................................................................................................... 11
Tool Rest ........................................................................................................................................... 11
Maintenance .......................................................................................................................................... 12
Ring Test ........................................................................................................................................... 12
Care of Grinding Wheel ...................................................................................................................... 12
Changing Wheels ............................................................................................................................... 12
Grinding Wheels ............................................................................................................... ................. 13
Wire Wheel Brush e s .......................................................................................................................... 13
Cleaning ............................................................................................................................................ 13
Lubrication............................................................................................................................................. 13
Troubleshooting ..................................................................................................................................... 14
Parts and Assembly for JBG Series Grinders ......................................................................................... 15
Parts List............................................................................................................................................ 1 5
Assembly Drawing ............................................................................................................................. 18
Wiring Diagram ...................................................................................................................................... 19
Ordering Replacement Parts.................................................................................................................. 2 0
The specifi cati ons in this m anual are giv en as general i nform ation and are not bi nding. J ET reserv es the
right to eff ect, at any tim e and wit hout pri or notic e, changes or alt erat ions to par ts, fi tti ngs, and accessory
equipment deemed nec essary for any reason whatsoever.
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Warnings
1. For your own safety read instruction manual bef or e operating grinder.
2. Read and understand the ent ire owner’s manual bef or e att em pting assembly or operation.
3. Read and understand the warnings po sted on the m achine and i n thi s manual. Fail ure to comply wit h
all of these warnings m ay cause seriou s i njury.
4. Replace the warning labels if they become obscured or remov ed.
5. This bench gri nder is designed and intended f or use by properly trained and experienced per sonnel
only. If you are not familiar with the proper and saf e operation of a bench gr inder, do not use unti l
proper trai ning and k nowledge have been obtained.
6. Do not use this bench grinder for other than its intended use. If used for other purposes, JET
disclaim s any real or i mplied warrant y and h olds itsel f harml ess from any injury t hat may r esult f rom
that use.
7. Wear eye protection and always use guards and eye shields.
8. Always wear approved safety glasses/face shields while using this bench grinder. Everyday
eyeglasses only have impact resistant lenses; they are not safety gl asses.
9. Bef or e operati ng this bench gri nder, remov e tie, rings, watches and other jewelr y, and r oll sl eeves up
past the elbows. Rem ove all loose cl othing and confi ne long hair. Non-sl ip foot wear or anti-ski d floor
strips are recommended. Do not wear gloves.
10. Wear ear protector s (plugs or muffs) during ext ended periods of operation.
11. Some dust created by power sanding, sawing, grinding, drilling and other construction activities
contain chemi cals known to cause cancer , bir th defects or other r eproductiv e harm . Some exampl es
of these chemic als are:
• Lead from lead based paint .
• Crystalline silica from bricks, c ement and other masonry product s.
• Arsenic and chrom ium from chemically treated lum ber .
Your risk of exposure varies, depending on how often you do this type of work. To reduce your
exposure to these chemicals, work in a well-ventilated area and work with approved safety
equipment, such as face or dust masks that are specifically designed to filter out microscopic
particles.
12. Do not operate this machine while tired or under the influence of dr ugs, alcohol or any medication.
13. Make certain t he switc h is i n the OFF position before connect ing the machine to the power supply.
14. Make certain t he machine is properly grounded.
15. Make all machine adjustments or maintenance with the machine unplugged from the power source.
16. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting
wrenches are removed from the machine before turning it on.
17. KEEP GUARDS IN PLACE and in working order at all times when the machine is in use. If removed
for maintenance pur pose s, use extreme cauti on and r eplac e the guards immediately.
18. Make sure the bench gri nder is firmly secured to the floor or bench bef or e use.
19. 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. Chec k for alignment of moving par ts, binding of moving parts, breakage of parts, mounting
and any other condi ti ons that m ay affect its operati on. A guard or ot her part that i s damaged should
be properly repaired or replaced.
20. Provide f or adequate space surrounding work area and non- glare, overhead lighting.
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21. Make your workshop chil d pr oof with padlocks, master swit c hes or by r em ov ing starter keys.
22. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
23. DO N’T USE IN DANG EROUS ENVIRONMENT. Don’t use po wer tools in dam p or wet loc ations, or
expose them to r ain. Keep work area well li ghted. Keep the floor ar ound the machine clean and f ree
of scrap material, oil and grease.
24. Keep visit or s a safe di stanc e from the work area. Keep children away.
25. Giv e your work undivi ded attention. Looki ng around, carryi ng on a conversati on and “horse-play” ar e
careless acts that can r esul t in serious injury.
26. Use only flanges fur nished with the grinder.
27. Maint ain a balanced stanc e at all times so that you do not fall or lean against the gr inding wheels or
other movi ng parts. Do not overreach or use excessive force to perform any machine operation.
28. Use grinding wheel sui table for speed of grinder. Do not forc e a tool or attachment to do a job for
which it was not designed. T he ri ght tool will do the job better and safer.
29. DISCONNECT TOOLS before servici ng; when changing accessories, such as blades, bi ts, cutters,
and the like. Use recommended accessories. Consult the owner’s manual for recommended
accessories. The use of improper accessories may cause risk of injury to persons. Improper
accessories may be haz ar dous.
30. Frequently clean grinding dust from beneath grinder. MAINTAIN TOOLS WITH CARE. Keep tool s
sharp and clean for best and safest performance. Follow instructions for lubricating and changing
accessories.
31. Make sure the work pi ece is securel y attached or clamped to the table. Never use your hand to hol d
the work piece.
32. Turn off the machine befor e c leaning. Use a brush or compressed air t o remove chips or de br is — do
not use your hands.
33. Do not stand on the machine. S eri ous i njur y c oul d oc c ur if the mac hine tips over.
34. Never leave t he m ac hine r unning unattended. Tur n the power off and do not leave the machine until it
comes to a complete stop.
35. Remove loose it em s and unnecessary work pieces from the area before starting the machine.
35. DON’T FORCE TOOL. It will do the job bett er and safer at the rate for which it was designed.
Familiariz e you rself with the following safet y no tices used in this manual:
This means that if precautions are not heeded, it may result in minor injury and/or
possible machine damage.
This means that if precautions are not heeded, it may result in serious injury or possibly
even death.
- - SAVE THESE INSTRUCTIONS - -
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Introduction
This manual is provi ded by JET covering the saf e operation and mai ntenance procedures for t he JET
JBG Series Bench G r inders. Thi s manual contains instructions on install ation, safet y pr ec autions, general
operating proc edures, maintenance i nstructions and part s breakdown. This m achine has been designed
and constructed to pr ovi de years of troubl e free operation if used in accor dance wit h instructi ons set fort h
in this m anual. If there are any questi ons or com ments, please contact either y our local supplier or JET.
JET can also be reached at our web site: www.jettools.com.
Specifications
Model ................................................................. JBG-6A ........................ JBG-8A....................... JBG-10A
Stock Number:.................................................... 577101 ......................... 577102......................... 577103
Overall Dimension (L x H x D/in): ....... 18 x 10-1/2 x 8-1/2 ............ 19 x 12-1/2 x 10...... 24-1/2 x 12-1/4 x 13
Wheel Size (D x W x Bore /in): ..................... 6 x 3/4 x 1/2 .....................8 x 1 x 5/8...................... 10 x 1 x 1
Wheels Included/ Grit: ......................................... 36 & 60 .........................36 & 60......................... 24 & 46
Motor: ................................................. 1/2HP, 120V, 1Ph ............ 1HP, 120V, 1Ph...... 1-1/2 HP, 120V, 1Ph
Motor RPM ............................................................ 3,450 ............................ 3,450............................ 1, 725
Gross Weight (LBS): ................................................... 38 ................................. 60............................... 119
The above specifications were current at the time this m anual was published, but beca us e of our pol ic y of
continuous impr ovement, JET reserves the right to change specificati ons at any tim e and without prior
notice, without incurring obligations.
Read and understand the entire contents of this manual before attempting
assembly or operat io n! Failure to comply may cause serious injury
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