Harbor Freight Tools 37822 Grinder User Manual
Contents
1. 9 9 OPERATING INSTRUCTIONS 11 WORK PIECE AND WORK AREA SETUP 11 GENERAL OPERATING INSTRUCTIONS 11 MAINTENANCE AND SERVICING 12 CLEANING MAINTENANCE AND 12 0 13 PARTS 14 ASSEMBLY 15 LIMITED 1 YEAR 90 DAY WARRANTY 16 2 SAVE THIS MANUAL Keep this manual for the safety warn ings and precautions assembly operat ing inspection maintenance and cleaning procedures Write the product s serial number in the back of the manual near the assembly diagram or month and year of purchase if product has no number Keep this manual and the receipt in a safe and dry place for future reference IMPORTANT SAFETY INFORMATION In this manual on the labeling and all other information provid ed with this product This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death DANGER indicates 4 DANGER a hazardous situation which if not avoided will result in death or serious injury AWARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury ACAUTION2. 11 33 12 34 13 35 14 36 15 37 16 387 17 39 18 Specify grit when ordering Items 37822 or 37823 only Bench Grinder For technical questions please call 1 800 444 3353 Page 14 ASSEMBLY DIAGRAM Record Product s Serial Number Here Note If product has no serial number record month and year of purchase instead Note Some parts are listed and shown for illustration purposes only and are not avail able individually as replacement parts REV 01k Bench Grinder For technical questions please call 1 800 444 3353 Page 15 LIMITED 1 YEAR 90 DAY WARRANTY Harbor Freight Tools Co makes every effort to assure that its products meet high quality and durability standards and warrants to the original purchaser that for a period of ninety days from date of purchase that the engine motor the belts if so equipped and the blades if so equipped are free of defects in materials and workmanship Har bor Freight Tools also warrants to the original purchaser for a period of one year from date of purchase that all other parts and components of the product are free from defects in materials and workmanship 90 days if used by a professional contractor or if used as rental equipment This warranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facilities normal wear and tear or to lack of maintenance We shall in no event be liable for d
3. tine reduces the blood supply to the hands and fingers increasing the risk of vibration related injury Wear suitable gloves to reduce the vibration effects on the user Use tools with the lowest vibration when there is a choice between dif ferent processes Include vibration free periods each day of work Grip tool as lightly as possible while still keeping safe control of it Let the tool do the work To reduce vibration maintain the tool as explained in this manual If any abnormal vibration occurs stop use immediately SAVE THESE INSTRUCTIONS Page 7 SPECIFICATIONS UNPACKING All Models _ When unpacking make sure that 180264 item is intact and undamaged If any parts Motor Load Speed 3450 RPM are missing or broken please call Harbor 5 8 with 1 2 Adapter Freight Tools at 1 800 444 3353 as soon a as possible Mounting Holes 2 x 3 8 Work Light Bulb 40 W Household type MODEL 37822 Electrical Input 120 V 60 Hz 1 2 HP Wheel Size 6 x 3 4 x 1 2 Work Light Bulb 40 W Household type MODEL 37823 Electrical Input 120 V 60 Hz 3 4 HP Wheel Size 8 x 3 4 x 5 8 Work Light Bulb 40 W Household type MODEL 39797 Electrical Input 120 V 60 Hz 1 2 HP Wheel Size 6 x 3 4 x 1 2 MODEL 39798 Electrical Input 120 V 60 Hz 3 4 HP Wheel Size 8 x 3 4 x 5 8 Bench Grinder For technical questions please call 1 800 444 3353 Pag
4. this product will expose you to lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling Califor nia Health amp Safety Code 2524915 et seq The warnings precautions and in structions discussed in this instruction manual cannot cover all possible con ditions and situations that may occur It must be understood by the operator that common sense and caution are factors which cannot be built into this product but must be supplied by the operator Vibration Safety Bench Grinder This tool vibrates during use Re peated or long term exposure to vibration may cause temporary or permanent physical injury particularly to the hands arms and shoulders To reduce the risk of vibration related injury Anyone using vibrating tools regu larly or for an extended period should first be examined by a doctor and then have regular medical check ups to ensure medical problems are not being caused or worsened from use Pregnant women or people who have impaired blood circulation to the hand past hand injuries ner vous system disorders diabetes or Raynaud s Disease should not use this tool If you feel any medical or physical symptoms related to vibra tion such as tingling numbness and For technical questions please call 1 800 444 3353 white or blue fingers seek medical advice as soon as possible Do not smoke during use Nico
5. CAUTION used with the safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury Bench Grinder For technical questions please call 1 800 444 3353 NOTICE is used to NOTICE address practices not related to personal injury CAUTION without CAUTION the safety alert symbol is used to address practices not related to personal injury General Tool Safety Warnings WARNING Read all safety warnings and instructions Failure to follow the warnings and instructions may result in electric shock fire and or serious injury Save all warnings and instructions for future reference 1 KEEP GUARDS IN PLACE working order 2 REMOVE ADJUSTING KEYS AND WRENCHES Form habit of check ing to see that keys and adjusting wrenches are removed from tool before turning it on 3 KEEP WORK AREA CLEAN Clut tered areas and benches invite ac cidents 4 DON T USE IN DANGEROUS EN VIRONMENT Don t use power tools in damp or wet locations or expose them to rain Keep work area well lighted 5 KEEP CHILDREN AWAY All visitors should be kept safe distance from work area 6 WORKSHOP KID PROOF with padlocks master switches or by removing starter keys Page 3 7 DON T FORCE TOOL It will do the job better and safer at the rate for which it was designed USE RIGHT TOOL Don t force tool or attachment to do a job for whic
6. LCENTRAL MACHINERY BENCH GRINDER 37822 37823 Model 39797 39798 SET UP AND OPERATING INSTRUCTIONS Distributed exclusively by Harbor Freight Tools 3491 Mission Oaks Blvd Camarillo CA 93011 Visit our website at http www harborfreight com Read this material before using this product Failure to do so can result in serious injury SAVE THIS MANUAL Copyright 1998 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this manual may not be drawn proportionally Due to continuing improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included For technical questions or replacement parts please call 1 800 444 3353 Manual Revised 09d IMPORTANT SAFETY GENERAL TOOL SAFETY WAR NIN GS GROUNDING INSTRUCTIONS 110 120 V GROUNDED TOOLS TOOLS WITH THREE PRONG SPECIFICATIONS ALL 1 MODEL 37822 MODEL 378232 MODEL 39797 MODEL 39798 UNPACKING Bench Grinder For technical questions please call 1 800 444 3353 INSTRUCTIONS FOR PUTTING INTO USE 2
7. NIOSH ap proved for the specific hazards in the work area Industrial applications must follow OSHA guidelines Maintain labels and nameplates on the tool These carry important safety information If unreadable or miss ing contact Harbor Freight Tools for a replacement Avoid unintentional starting Prepare to begin work before turning on the tool People with pacemakers should consult their physician s before use Electromagnetic fields in close prox imity to heart pacemaker could cause pacemaker interference or pacemak er failure WARNING Some dust created by power sanding sawing grinding drill ing and other construction activities contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Some examples of these chemicals are e Lead from lead based paints e Crystalline silica from bricks and ce ment or other masonry products e Arsenic and chromium from chemi cally treated lumber Your risk from these exposures var ies 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 those dust masks that are specially designed to filter out microscopic Bench Grinder For technical questions please call 1 800 444 3353 Page 6 20 21 particles California Health amp Safety Code 25249 5 et seq WARNING Handling the cord on
8. NY GUARD DISABLED DAMAGED OR REMOVED 1 Sharpening Scissors If possible take the scissors apart to make the sharpening operation easier and safer Remove material only from the outside surface and work from the heavy end of the blade toward the tip 2 Sharpening Screwdrivers The end of a properly sharpened screwdriver will be a perfect rectan gle absolutely flat and perpendicular to the center line of the shank The two sides and two faces will taper outward from the edge of the shank of the screwdriver They should be flat with intersecting faces perpen dicular Hold each face of the screw driver against the wheel to true it up then ease the end straight into the stone to grind it true Sharpening Knives Remove metal from both faces of most knives working from the heavy end of the blade toward the tip Sharpening Twist Drill Bits Drill bits are best sharpened on a sharpening jig but some sharpening can be done on your bench grinder Begin on one side of the point at the existing angle then twist the bit while maintaining a constant angle with the grinding surface Sharpen only the tip This technique requires consider able practice so try it a few times with the grinder off Be sure to maintain the original cutting edge angle as this is important to maintaining the effi ciency of your bits To prevent accidents turn off the tool and disconnect its power supply after use Clean then store the to
9. Note There is a left and right spark guard Refer to Figure 2 to be certain that you install them correctly REV 01b Page 9 3 Installing Bracket to Eye Shield BRACKET Qs EYESHIELD FIGURE 3 a Select one flat bracket and one eye shield Assemble as shown in Fig ure 3 b Repeat for left eye shield 4 Installing Eye Shield to Grinder a For installation of the right eye shield 19 make sure that the holes in the eye shield bracket face downward FIGURE 4 b Push eye shield bracket onto mount ing bracket until it locks into place as shown in Figure 4 c Repeat for left eye shield Bench Grinder For technical questions please call 1 800 444 3353 Page 10 OPERATING INSTRUCTIONS SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product Read the ENTIRE IMPORTANT Work Piece and Work Area Set U 1 Designate a work area that is clean and well lit The work area must not allow access by children or pets to prevent distraction and injury 2 Route the power cord along a safe route to reach the work area without creating a tripping hazard or exposing the power cord to possible damage 3 There must not be objects such as utility lines nearby that will present a hazard while working General Operating Instructions TO PREVENT AWARNING SERIOUS INJURY DO NOT OPERATE WITH A
10. ck This tool is equipped with an electric cord having an equipment grounding conductor and a ground ing plug The plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all local codes and ordinances 2 Do not modify the plug provided if it will not fit the outlet have the proper outlet installed by a qualified electri cian 3 Improper connection of the equip ment grounding conductor can re sult in a risk of electric shock The conductor with insulation having an outer surface that is green with or without yellow stripes is the equip ment grounding conductor If repair or replacement of the electric cord or plug is necessary do not connect the Bench Grinder equipment grounding conductor to a live terminal Check with a qualified electrician or service personnel if the grounding instructions are not completely under stood or if in doubt as to whether the tool is properly grounded Use only 3 wire extension cords that have 3 prong grounding plugs and 3 pole receptacles that accept the tool s plug Repair or replace damaged or worn cord immediately Grounding Pin 125 V 3 Prong Plug and Outlet for up to 125 V and up to 15 A This tool is intended for use on a cir cuit that has an outlet that looks like the one illustrated above in 125 V 3 Prong Plug and Outlet The tool has a grounding plug that looks like the plug illustrated above in 125 V 3 P
11. e 8 INSTRUCTIONS FOR PUTTING INTO USE Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product TO PREVENT AWARNING serious INJURY FROM ACCIDENTAL OPERATION Turn the tool off and unplug it before assembling or making any adjustments to the tool Note For additional information regarding the parts listed in the following pages refer to the Assembly Diagram near the end of this manual Assembly 1 Installing Tool Rests a Turn the Grinder off and unplug it FIGURE 1 b Install adjustable rests 22 and 35 to the wheel guards 7 and 27 as Bench Grinder For technical questions please call 1 800 444 3353 shown in Figure 1 Use bolts and washers to secure them in place as shown in Figure 1 Note There is a left and a right tool rest Refer to Figure 1 to be certain that you install them correctly c The tool rests should be adjusted to within 1 16 of the grinding wheel To adjust this distance move Adjust able Rests 22 and 35 by loosening bolts and moving them to the proper position 2 Installing Spark Guards SPARK FIGURE 2 GUARD a Select spark guards 17 and 18 washer and bolt Install the right WASHER spark guard to the wheel guard as shown in Figure 2 b Adjust the spark guard to within 1 16 of the grinding wheel Repeat for left side
12. eath injuries to persons or property or for incidental contingent special or con sequential damages arising from the use of our product Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the com plaint must accompany the merchandise If our inspection verifies the defect we will ei ther repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement We will return re paired products at our expense but if we determine there is no defect or that the defect resulted from causes not within the scope of our warranty then you must bear the cost of returning the product This warranty gives you specific legal rights and you may also have other rights which vary from state to state 3491 Mission Oaks Blvd PO Box 6009 Camarillo CA 93011 800 444 3353 Bench Grinder For technical questions please call 1 800 444 3353 Page 16
13. h it was not designed RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS 120 VOLT NAMEPLATE EXTENSION CORD AMPERES LENGTH at full load 25 50 21 16 4 2 TABLEA o o 10 11 Bench Grinder not use USE PROPER EXTENSION CORD Make sure your extension cord is in good condition When using an extension cord be sure to use one heavy enough to carry the current your product will draw An undersized cord will cause a drop in line voltage resulting in loss of power and over heating Table A shows the correct size to use depending on cord length and nameplate ampere rating If in doubt use the next heavier gauge The smaller the gauge number the heavier the cord WEAR PROPER APPAREL Do not wear loose clothing neckties rings bracelets or other jewelry which may get caught in moving parts Nonslip footwear is recommended Wear pro tective hair covering to contain long hair ALWAYS USE SAFETY GLASSES Also use face or dust mask if grinding operation is dusty Everyday eye 13 19 For technical questions please call 1 800 444 3353 glasses only have impact resistant lenses they are NOT safety glasses DON T OVERREACH Keep proper footing and balance at all times MAINTAIN TOOLS WITH CARE Keep tools sharp and clean for best and safest performance Follow instructions for lubricating and chang ing accessories DISCONNECT TOOLS before
14. mpting repairs Bulb Replacement Allow bulb to cool completely before replacing it Replace it only with a 40 W or less household bulb AWARNING If the supply cord of this power tool is damaged it must be replaced only by a qualified service technician Bench Grinder For technical questions please call 1 800 444 3353 Page 12 Troubleshooting Possible Causes Likely Solutions Tool will not start 1 Cord not connected 1 Check that cord is plugged in 2 No power at outlet 2 Check power at outlet If outlet is unpowered turn off tool and check circuit breaker If breaker is tripped make sure circuit is right capacity for tool and circuit has no other loads Tool s thermal reset breaker 3 Turn off tool and allow to cool Press tripped if equipped reset button on tool Internal damage or wear Carbon 4 Have technician service tool brushes or switch for example Tool operates Power being reduced by long or Eliminate use of extension cord If an slowly small diameter extension cord extension cord is needed use one with the proper diameter for its length and load See Extension Cords in GROUNDING section Performance Carbon brushes worn or damaged Have qualified technician replace brushes decreases over time rattling brushes or bearings for example Overheating 1 Forcing machine to work too fast 1 Allow machine to work at its own rate 2 Blocked motor housing vents 2 Wear ANSI approved safe
15. ol in doors out of children s reach Bench Grinder For technical questions please call 1 800 444 3353 Page 11 SERVICING Procedures not specifically A explained in this manual must be performed only by a qualified technician TO PREVENT AWARNING SERIOUS INJURY FROM ACCIDENTAL OPERATION Turn the Power Switch of the tool to its OFF position and unplug the tool from its electrical outlet before performing any inspection maintenance or cleaning procedures TO PREVENT SERIOUS INJURY FROM TOOL FAILURE Do not use damaged equipment If abnormal noise or vibration occurs have the problem corrected before further use Cleaning Maintenance and Lubrication 1 BEFORE EACH USE inspect the general condition of the tool Check for loose hardware misalignment or binding of moving parts cracked or broken parts damaged electrical wir ing and any other condition that may affect its safe operation 2 AFTER USE wipe external surfaces of the tool with clean cloth 3 Care of Grinding Wheels As a result of normal use grind ing wheels may become cracked grooved rounded chipped out of true or loaded with foreign material Cracked wheels should be replaced immediately Wheel Replacement If you must replace a wheel be sure to obtain one with a safe rated speed at least as high as the rated RPM of this grinder Be sure tool is switched off and unplugged before atte
16. rong Plug and Outlet The outlet must be properly installed and grounded in accordance with all codes and ordinances Do not use an adapter to connect this tool to a different outlet For technical questions please call 1 800 444 3353 Page 5 Grinder Safety Warnings For Your Own Safety Read Instruction Manual Before Operating Grinder 1 Wear eye protection 2 Use grinding wheel suitable for speed of grinder Replace cracked wheel immediately Always use guards and eye shields Do not overtighten wheel nut ae Use only flanges furnished with the grinder 7 Adjust distance between wheel and work rest to maintain 1 16 inch or less separation as the diameter of the wheel decreases with use 8 Frequently clean grinding dust from beneath grinder 9 Wear a full face shield over ANSI approved safety goggles during use 10 Do not grind with side of wheel un less wheel is specifically designed for that type of grinding 11 DO NOT OPERATE WITH ANY GUARD DISABLED DAMAGED OR REMOVED 12 The use of accessories or attach ments not recommended by the manufacturer may result in a risk of injury to persons 13 When servicing use only identical replacement parts 14 Only use safety equipment that has been approved by an appropriate standards agency Unapproved safety equipment may not provide adequate protection Eye protection must be ANSI approved and breath ing protection must be
17. ser vicing when changing accessories such as blades bits cutters and the like REDUCE THE RISK OF UNINTEN TIONAL STARTING Make sure switch is in off position before plug ging in USE RECOMMENDED ACCESSO RIES Consult the owner s manual for recommended accessories The use of improper accessories may cause risk of injury to persons NEVER STAND ON TOOL Serious injury could occur if the tool is tipped or if the grinding tool is unintentionally contacted CHECK DAMAGED PARTS Before further use of the tool a guard or other part that is damaged should be carefully checked to determine that it will operate properly and per form 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 A guard or other part that is damaged should be properly repaired or replaced DIRECTION OF FEED Feed work into a blade or cutter against the Page 4 direction of rotation of the blade or cutter only 20 NEVERLEAVE TOOL RUNNING UNATTENDED TURN POWER OFF GROUNDING INSTRUCTIONS TO PREVENT AWARNING ELECTRIC SHOCK AND DEATH FROM INCORRECT GROUNDING WIRE CONNECTION READ AND FOLLOW THESE INSTRUCTIONS 110 120 V Grounded Tools Tools with Three Prong Plugs 1 In the event of a malfunction or breakdown grounding provides a path of least resistance for electric current to reduce the risk of electric sho
18. ty goggles NIOSH approved dust mask respirator while blowing dust out of motor using compressed air 3 Motor being strained by long or Eliminate use of extension cord If small diameter extension cord an extension cord is needed use one with the proper diameter for its length and load See Extension Cords in GROUNDING section Follow all safety precautions whenever diagnosing or servicing the tool Disconnect power supply before service Bench Grinder For technical questions please call 1 800 444 3353 Page 13 PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT IN FACT THE MANUFACTURER AND OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO PARTS LIST Note Specify grinder model number when ordering parts Part Description Part Description 26 27 28 7 29 30 31 10 2
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