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SKU 91222

25. The warnings, precautions, and instructions 

discussed in this instruction manual cannot 

cover all possible conditions 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.

Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or 

snagged rotating wheel, backing pad, brush 

or any other accessory. Pinching or snagging 

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 or kick out. The wheel may either jump toward 

or away from the operator, depending on direction 

of the wheel’s movement at the point of pinching. 

Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or 

incorrect operating procedures or conditions and can be 

avoided by taking proper precautions as given below.

1. 

Maintain a firm grip on the power tool and 

position your body and arm to allow you to 

resist kickback forces. Always use auxiliary 

handle, if provided, for maximum control over 

kickback or torque reaction during start-up. 

The operator can control torque reactions or 

kickback forces, if proper precautions are taken.

2. 

Never place your hand near the rotating 

accessory. Accessory may kickback over your hand.

3. 

Do not position your body in the area where 

power tool will move if kickback occurs.  

Kickback will propel the tool in direction opposite to 

the wheel’s movement at the point of snagging.

4. 

Use special care when working corners, sharp 

edges etc. Avoid bouncing and snagging the 

accessory. Corners, sharp edges or bouncing 

have a tendency to snag the rotating accessory 

and cause loss of control or kickback.

5. 

Do not attach a saw chain woodcarving 

blade or toothed saw blade. Such blades 

create frequent kickback and loss of control.

Safety Warnings Specific 

for Grinding Operations

1. 

Use only wheel types that are recommended 

for your power tool and the specific 

guard designed for the selected wheel. 

Wheels for which the power tool was not designed 

cannot be adequately guarded and are unsafe.

2. 

The guard must be securely attached 

to the power tool and positioned for 

maximum safety, so the least amount of 

wheel is exposed towards the operator. 

The guard helps to protect operator from broken 

wheel fragments and accidental contact with wheel.

3. 

Wheels must be used only for recommended 

applications. For example: do not grind with 

the side of cut-off wheel. Abrasive cut-off wheels 

are intended for peripheral grinding, side forces 

applied to these wheels may cause them to shatter.

4. 

Always use undamaged wheel flanges that are of 

correct size and shape for your selected wheel. 

Proper wheel flanges support the wheel thus reducing 

the possibility of wheel 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 

power tool is not suitable for the higher 

speed of a smaller tool and may burst.

6. 

Dress appropriately.  Wear leather leggings and 

fire resistant footwear during use. Do not wear pants 

with cuffs, shirts with open pockets, or any clothing 

that can catch and hold molten metal or sparks.

Safety Warnings Specific 

for Sanding Operations

1. 

Do not use excessively oversized sanding disc 

paper. Follow manufacturer’s recommendations 

when selecting sanding paper. Larger sanding 

paper extending beyond the sanding pad 

presents a laceration hazard and may cause 

snagging, tearing of the disc or kickback.

Safety Warnings Specific for 

Wire Brushing Operations

1. 

Be aware that wire bristles are thrown by 

the brush even during ordinary operation.  

Do not overstress the wires by applying 

excessive load to the brush. The wire bristles 

can easily penetrate light clothing and/or skin.

2. 

If the use of a guard is recommended for 

wire brushing, do not allow any interference 

of the wire wheel or brush with the guard. 

Wire wheel or brush may expand in diameter 

due to work load and centrifugal forces.

Vibration Safety

This tool vibrates during use.  Repeated 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:

Summary of Contents for 91222

Page 1: ...orfreight com Email our technical support at tech harborfreight com Copyright 2004 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...

Page 2: ...ery operated cordless power tool 1 Work area safety a Keep work area clean and well lit Cluttered or dark areas invite accidents b Do not operate power tools in explosive atmospheres such as in the presence of flammable liquids gases or dust Power tools create sparks which may ignite the dust or fumes c Keep children and bystanders away while operating a power tool Distractions can cause you to lo...

Page 3: ...unfamiliar with the power tool or these instructions to operate the power tool Power tools are dangerous in the hands of untrained users e 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 are caused by poorly maintained power t...

Page 4: ... draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards 15 Do not operate the power tool near flammable materials Sparks could ignite these materials 16 Do not use accessories that require liquid coolants Using water or other liquid coolants may result in electrocution or shock 17 Maintain labels and nameplates on the tool These carry important s...

Page 5: ... loss of control Safety Warnings Specific for Grinding Operations 1 Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel Wheels for which the power tool was not designed cannot be adequately guarded and are unsafe 2 The guard must be securely attached to the power tool and positioned for maximum safety so the least amount of wheel is ...

Page 6: ...power cord plug provided with the tool Never remove the grounding prong from the plug Do not use the tool if the power cord or plug is damaged If damaged have it repaired by a service facility before use If the plug will not fit the outlet have a proper outlet installed by a qualified electrician Grounded Tools Tools with Three Prong Plugs 3 Prong Plug and Outlet 1 Tools marked with Grounding Requ...

Page 7: ... you are using one extension cord for more than one tool add the nameplate amperes and use the sum to determine the required minimum cord size See Table A 6 If you are using an extension cord outdoors make sure it is marked with the suffix W A W in Canada 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 ...

Page 8: ...the planned work 4 Tighten the Wheel Guard Nut securely 5 Check the Wheel Guard to ensure it is firmly in place Adjust if necessary before proceeding Installing the Side Handle TO PREVENT SERIOUS INJURY Do not operate this tool with one hand only or without the Side Handle properly installed 6 The Side Handle may be installed in one of two positions on either side of the Gear Housing 7 Screw the t...

Page 9: ...he wheel with a light non metallic object such as a screwdriver handle at a point 45 from the vertical center line on each side of the wheel and 1 2 inches from the edge of the wheel see Illustration c Rotate the wheel 90 and repeat the test until the entire wheel has been checked d An undamaged wheel will give a clear tone If cracked there will be a dead sound and not a clear ring 6 For wheels wi...

Page 10: ...d 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 including but not limited to ANSI approved eye and hearing protection as well as heavy duty work gloves 6 Before beginning work provide for sparks and debris that will fly off the work surface Gen...

Page 11: ...clean cloth 3 Periodically blow dust and grit out of the motor vents using dry compressed air Wear ANSI approved safety goggles and NIOSH approved breathing protection while doing this 4 WARNING If the supply cord of this power tool is damaged it must be replaced only by a qualified service technician Carbon Brush Replace the carbon brush when it wears down to about 3 16 5 mm or sparking will occu...

Page 12: ...y goggles and NIOSH approved dust mask respirator while blowing dust out of motor using compressed air 3 Eliminate use of extension cord If an extension cord is needed use one with the proper diameter for its length and load See Extension Cords in GROUNDING section Tool does not grind sand or brush effectively 1 Disc accessory may be loose on Spindle Check tightness of Outer Flange Arbor Nut or th...

Page 13: ...in 1 13 Pinion 1 14 Ball Bearing 1 15 Armature 1 Part Description Qty 16 Ball Bearing 1 17 Stator 1 18 Housing 1 19 Slide Switch 1 20 Slide Bar 1 21 Brush Holder 1 22 Carbon Brush 1 23 Brush Cap 1 24 Cord 1 25 Cover 1 26 Switch 1 27 Switch Holder 1 28 Wrench 1 29 Side Handle 1 29 Record Product s Serial Number Here Note If product has no serial number record month and year of purchase instead Note...

Page 14: ...ental 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 complaint must...

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Page 16: ...3491 Mission Oaks Blvd PO Box 6009 Camarillo CA 93011 800 444 3353 ...

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