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Owner’s Manual & Safety Instructions

Save This Manual

 

Keep this manual for the safety warnings and precautions, assembly, 

operating, 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. 

21i

When unpacking, make sure that the product is intact 

and undamaged.  If any parts are missing or broken, 

please call 1-888-866-5797 as soon as possible.

Copyright

©

 2021 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.

Read this material before using this product. 

Failure to do so can result in serious injury. 

SAVE THIS MANUAL.

Summary of Contents for 1864E-B

Page 1: ...rence 21i When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2021 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 manua...

Page 2: ...ation which if not avoided could result in minor or moderate injury Addresses practices not related to personal injury IMPORTANT SAFETY INFORMATION General Power Tool Safety Warnings 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 7KH WHUP ƎSRZHU...

Page 3: ...alcohol or medication PRPHQW RI LQDWWHQWLRQ ZKLOH RSHUDWLQJ SRZHU WRROV PD UHVXOW LQ VHULRXV SHUVRQDO LQMXU 2 Use safety equipment Always wear eye protection 6DIHW HTXLSPHQW VXFK DV dust mask non skid safety shoes hard hat RU KHDULQJ SURWHFWLRQ XVHG IRU DSSURSULDWH FRQGLWLRQV ZLOO UHGXFH SHUVRQDO LQMXULHV 3 Prevent unintentional starting Ensure the switch trigger is in the off position before conn...

Page 4: ...with the power tool or these instructions to operate the power tool Power tools are dangerous in the hands of untrained users 5 Maintain power tools Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the power tool s operation If damaged have the power tool repaired before use Many accidents DUH FDXVHG E SRRUO PDLQWDLQHG SRZHU WRROV 6 Keep c...

Page 5: ... equipment Depending on application use face shield safety goggles or safety glasses As appropriate wear dust mask hearing protectors gloves and workshop apron capable of stopping small abrasive or workpiece fragments The eye protection must be capable of stopping flying debris generated by various operations 7KH H H SURWHFWLRQ PXVW EH FDSDEOH RI VWRSSLQJ IO LQJ GHEULV JHQHUDWHG E YDULRXV RSHUDWLR...

Page 6: ...ng causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory s rotation at the point of the binding For example if an abrasive wheel is snagged or pinched by the workpiece the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out o...

Page 7: ...LW RI ZKHHO breakage Flanges for cut off wheels may be different from grinding wheel flanges 5 Do not use worn down wheels from larger power tools Wheel intended for larger SRZHU WRRO LV QRW VXLWDEOH IRU WKH KLJKHU VSHHG RI D VPDOOHU WRRO DQG PD EXUVW 6 Dress appropriately Wear leather leggings and ILUH UHVLVWDQW IRRWZHDU GXULQJ XVH R QRW ZHDU SDQWV ZLWK FXIIV VKLUWV ZLWK RSHQ SRFNHWV RU DQ FORWKL...

Page 8: ...d injuries nervous system disorders diabetes or Raynaud s Disease should not use this tool If you feel any medical or physical symptoms related to vibration such as tingling numbness and white or blue fingers seek medical advice as soon as possible 2 Do not smoke during use Nicotine reduces the blood supply to the hands and fingers increasing the risk of vibration related injury 3 Wear suitable gl...

Page 9: ... to carry electricity away from the user reducing the risk of electric shock See 3 Prong Plug and Outlet 2 The grounding prong in the plug is connected through the green wire inside the cord to the grounding system in the tool The green wire in the cord must be the only wire connected to the tool s grounding system and must never be attached to an electrically live terminal See 3 Prong Plug and Ou...

Page 10: ...to indicate it is acceptable for outdoor use 7 Make sure the extension cord is properly wired and in good electrical condition Always replace a damaged extension cord or have it repaired by a qualified electrician before using it 8 Protect the extension cords from sharp objects excessive heat and damp or wet areas TABLE A RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS 120 240 VOLT NAMEPLATE AM...

Page 11: ...ol from its electrical outlet before performing any procedure in this section Note For additional information regarding the parts listed in the following pages refer to the Assembly Diagram near the end of this manual ASSEMBLY Installing the Wheel Guard TO PREVENT SERIOUS INJURY Do not operate this tool without the Wheel Guard properly installed 1 Pull the Clamp Handle open to loosen the Wheel Gua...

Page 12: ...ate this tool with one hand only or without the Auxiliary Handle properly installed 1 The Auxiliary Handle may be installed on either side of the Gear Housing 2 Screw the threaded end of the Auxiliary Handle into the selected position Tighten securely before beginning work Handle alternate location Functions Handle Spindle Lock Button Paddle Switch Wheel Guard Grinding Disc ...

Page 13: ...t the Spindle from turning 3 Remove the Outer Flange Keep the Inner Flange in position on the Spindle Grinding Disc Wrench Spindle Lock Button Inner Flange Outer Flange Spindle 4 Thread the Outer Flange onto the Spindle Wrench tighten only enough so that the wheel is securely held on the spindle WARNING To prevent serious injury do not overtighten flange Overtightening can damage the wheel causing...

Page 14: ...he power cord to possible damage The power cord must reach the work area with enough extra length to allow free movement while working 3 Secure loose workpieces using a vise or clamps not included to prevent movement while working 4 There must not be hazardous objects such as utility lines or foreign objects nearby that will present a hazard while working 5 You must use personal safety equipment i...

Page 15: ...then store the tool indoors out of children s reach Sanding Instructions TO PREVENT SERIOUS INJURY Grip the tool firmly in both hands 1 Wipe the work surface clean of all dirt and debris especially that of previous coarser sanding sessions which will scratch the surface of a finer grit sanding session 2 Attach the desired grit Sanding Disk sold separately onto the Spindle 3 Make sure that the Padd...

Page 16: ...ondition of the tool Check for loose hardware misalignment or binding of moving parts damaged cord electrical wiring cracked or broken parts and any other condition that may affect its safe operation 2 AFTER USE wipe external surfaces of the tool with clean cloth 3 Periodically wear ANSI approved safety goggles and NIOSH approved breathing protection and blow dust and grit out of the motor vents u...

Page 17: ... load See WHQVLRQ Cords in GROUNDING section Performance decreases over time Carbon brushes worn or damaged Have qualified technician replace brushes Excessive noise or rattling Internal damage or wear Carbon brushes or bearings for example Have technician service tool Overheating 1 Forcing tool to work too fast 2 Blocked motor housing vents 3 Motor being strained by long or small diameter extensi...

Page 18: ...mbly 1 33 Motor Housing 1 34 Paddle Switch 1 35 Switch 1 36 Screw ST4 2 x 28F 2 37 Right Rear Cover 1 38 Screw ST4 2 x 16F 4 39 Brush Holder Coil Spring 2 40 Screw ST2 9 x 8 2 41 Carbon Brush 2 42 Coil Spring 2 43 Paddle Lock 1 44 Spring 1 45 Elastic Cylindrical Pin 1 46 Locking Button 1 47 Cord Clamp 1 48 Left Rear Cover 1 49 Cord Guard 1 50 Power Cord 1 51 Wrench 1 52 Side Handle 1 Parts List an...

Page 19: ...se call 1 888 866 5797 Item 57002 SAFETY OPERATION MAINTENANCE SETUP Assembly Diagram 1 2 4 5 6 7 9 10 11 13 15 16 17 3 8 12 14 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 37 35 36 38 49 50 38 47 48 39 40 41 42 43 44 45 46 19 51 52 ...

Page 20: ...lusion 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 expl...

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