Wen 4276 User manual

6-INCH
BENCH GRINDER
Instruction Manual
IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
TECHSUPPOR[email protected]1-800-232-1195 (M-F 8AM-5PM CST)
For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM
MODEL 4276, BG4276

CONTENTS
WELCOME 3
Introduction ..................................................................................................... 3
Specifications................................................................................................... 3
SAFETY 4
General Safety Rules........................................................................................ 4
Bench Grinder Safety Warnings ....................................................................... 6
Electrical Information....................................................................................... 8
BEFORE OPERATING 9
Unpacking & Packing List.................................................................................9
Know Your Bench Grinder...............................................................................10
Assembly & Adjustments............................................................................... 11
OPERATION & MAINTENANCE 12
Operation ....................................................................................................... 12
Maintenance....................................................................................................13
Exploded View & Parts List.............................................................................16
Warranty Statement ........................................................................................18
To purchase accessories and replacement parts for your tool, visit WENPRODUCTS.COM
Cast Iron Bench Grinder Stand (Model 4288T)
2

SPECIFICATIONS
INTRODUCTION
Thanks for purchasing the WEN Bench Grinder. We know you are excited to put your tool to work, but first, please
take a moment to read through the manual. Safe operation of this tool requires that you read and understand this
operator’s manual and all the labels affixed to the tool. This manual provides information regarding potential safety
concerns, as well as helpful assembly and operating instructions for your tool.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may occur.
WEN reserves the right to change this product and specifications at any time without prior notice.
At WEN, we are continuously improving our products. If you find that your tool does not exactly match this manual,
please visit wenproducts.com for the most up-to-date manual or contact our customer service at 1-800-232-1195.
Keep this manual available to all users during the entire life of the tool and review it frequently to maximize
safety for both yourself and others.
Indicates danger, warning, or caution. The safety symbols and the explanations with them deserve your
careful attention and understanding. Always follow the safety precautions to reduce the risk of fire, electric shock
or personal injury. However, please note that these instructions and warnings are not substitutes for proper ac-
cident prevention measures.
Model Number 4276, BG4276
Motor 120V, 60 Hz, 2.1A
Wheel Speed 3450 RPM (No Load)
Grinding Wheel Size 6 in. x 3/4 in.
Arbor Size 1/2 Inch
Arbor Thread M12-1.75
Wheel Grits #36 (Coarse) and #60 (Medium)
Lamp 120V, 40W (Bulb Not Included)
Product Weight 16 Pounds
3

GENERAL SAFETY RULES
WORK AREA SAFETY
1. Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
2. Do not operate power tools in explosive atmo-
spheres, such as in the presence of flammable liquids,
gases or dust. Power tools create sparks which may ig-
nite the dust or fumes.
3. Keep children and bystanders away while operating
a power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
1. Power tool plugs must match the outlet. Never mod-
ify the plug in any way. Do not use any adapter plugs
with earthed (grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of electric shock.
2. Avoid body contact with earthed or grounded surfac-
es such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body
is earthed or grounded.
3. Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of elec-
tric shock.
4. Do not abuse the cord. Never use the cord for car-
rying, pulling or unplugging the power tool. Keep cord
away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of electric
shock.
5. When operating a power tool outdoors, use an ex-
tension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of electric
shock.
6. If operating a power tool in a damp location is un-
avoidable, use a ground fault circuit interrupter (GFCI)
protected supply. Use of a GFCI reduces the risk of elec-
tric shock.
PERSONAL SAFETY
1. Stay alert, watch what you are doing and use com-
mon sense when operating a power tool. Do not use a
power tool while you are tired or under the influence
of drugs, alcohol or medication. A moment of inatten-
tion while operating power tools may result in serious
personal injury.
2. Use personal protective equipment. Always wear
eye protection. Protective equipment such as a respira-
tory mask, non-skid safety shoes and hearing protection
used for appropriate conditions will reduce the risk of
personal injury.
3. Prevent unintentional starting. Ensure the switch is
in the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or
energizing power tools that have the switch on invites
accidents.
4. Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to a
rotating part of the power tool may result in personal
injury.
5. Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power
tool in unexpected situations.
6. Dress properly. Do not wear loose clothing or jew-
elry. Keep your hair and clothing away from moving
parts. Loose clothes, jewelry or long hair can be caught
in moving parts.
Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool”
in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
4

GENERAL SAFETY RULES
7. If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of dust collection
can reduce dust-related hazards.
POWER TOOL USE AND CARE
1. Do not force the power tool. Use the correct power
tool for your application. The correct power tool will
do the job better and safer at the rate for which it was
designed.
2. Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
3. Disconnect the plug from the power source and/or
the battery pack from the power tool before making
any adjustments, changing accessories, or storing
power tools. Such preventive safety measures reduce
the risk of starting the power tool accidentally.
4. Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained us-
ers.
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 opera-
tion. If damaged, have the power tool repaired before
use. Many accidents are caused by poorly maintained
power tools.
6. Keep cutting tools sharp and clean. Properly main-
tained cutting tools with sharp cutting edges are less
likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits, etc.
in accordance with these instructions, taking into ac-
count the working conditions and the work to be per-
formed. Use of the power tool for operations different
from those intended could result in a hazardous situa-
tion.
8. Use clamps to secure your workpiece to a stable
surface. Holding a workpiece by hand or using your
body to support it may lead to loss of control.
9. KEEP GUARDS IN PLACE and in working order.
SERVICE
1. Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is main-
tained.
CALIFORNIA PROPOSITION 65 WARNING
Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities may contain
chemicals, including lead, known to the State of Califor-
nia to cause cancer, birth defects, or other reproductive
harm. Wash hands after handling. Some examples of
these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement, and other
masonry products.
• Arsenic and chromium from chemically treated
lumber.
Your risk from these exposures varies depending on
how often you do this type of work. To reduce your ex-
posure to these chemicals, work in a well-ventilated area
with approved safety equipment such as dust masks
specially designed to filter out microscopic particles.
Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool”
in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
5

BENCH GRINDER SAFETY
1. This bench grinder is designed for sharpening and
honing cutting tools, using the appropriate accessories.
Using the machine for any other purpose for which it
is not designed may result in serious injuries, machine
damage and voiding of the warranty.
2. Grinding wheel safety:
• Only use grinding wheels rated for a speed higher
than 3450 RPM (maximum RPM of the tool).
• Inspect wheels for cracks or fragments before start-
ing the machine. Replace damaged wheels immedi-
ately. Never use a questionable grinding wheel, as
the RPM of the machine can send broken wheel frag-
ments flying at high speeds.
• Do not use a wheel that vibrates. If a wheel vibrates,
it may be that the bearings of the shaft need replac-
ing.
• Check that the grinding stone can rotate smoothly
before starting the machine.
• The grinding wheel is for grinding. Never attempt to
cut anything with the grinding wheel.
3. The use of accessories or attachments not recom-
mended by the manufacturer may result in a risk of per-
sonal injury.
4. DANGER! Fire Hazard. Do not grind or polish magne-
sium or magnesium alloys.
5. Preventing accidental starting. Make sure the power
switch is in the OFF position prior to plugging in the ma-
chine. Always make sure the power switch is in the OFF
position and the machine is unplugged when doing any
cleaning, adjustments, assembly, setup operations, or
when not in use.
PERSONAL SAFETY
1. Operate in a well ventilated area. Keep the floor
area around the bench grinder level and free of
slippery substances or other tripping hazards.
2. Wear ANSI-approved safety goggles to protect your
eyes from sparks and chips. Use hearing protection to
protect yourself from hearing loss.
3. DO NOT wear loose clothing or jewelry as they might
get drawn in by the tool. Tie back long hair.
4. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in close
proximity to pacemakers could cause pacemaker inter-
ference or pacemaker failure.
5. Chips are harmful to your health. Use NIOSH-approved
dust masks or other respiratory protection during opera-
tion and cleaning.
6. Always turn off and unplug the bench grinder before
making any adjustments or repair tasks. Never adjust the
bench grinder or the workpiece while the tool is running.
PREPARING THE BENCH GRINDER
When transporting the bench grinder, carry it by the
base. Never carry the device by its guards or its acces-
sories.
1. Examine the bench grinder for any damaged or miss-
ing parts. Replace or repair damaged parts before op-
eration. Periodically check that all nuts, bolts and other
fasteners are properly tightened.
2. Do not operate this tool until it is completely assem-
bled and installed according to the instructions. Make
sure all adjustments are correct and all connections are
tight. Keep all guards in place.
DURING OPERATION
1. Never start the machine with any load already applied
to either grinding wheel. Stand to the side of the bench
grinder during start-up. Switch it ON and let the bench
grinder reach full speed for roughly one minute to warm
up the wheel and to ensure proper operation.
2. Never grind on a cold wheel. Run the bench grinder
for one full minute before applying the workpiece. Cold
wheels have an increased likelihood of chipping during
operation.
3. Only grind on the face of the grinding wheel. Do not
grind on the side of the wheel.
BENCH GRINDER SAFETY WARNINGS
WARNING! Do not operate the power tool until you have read and understood the following instructions and
the warning labels.
6

BENCH GRINDER SAFETY WARNINGS
WARNING! Do not operate the power tool until you have read and understood the following instructions and
the warning labels.
DURING OPERATION (CONT.)
4. Keep clear of moving parts. Keep arms, hands and
other vital appendages away from the grinding and hon-
ing wheel. Do not reach behind or beneath the rotating
wheel. Avoid awkward operation and hand positions. An
accident could easily send the operator’s hand into the
wheel.
5. If you are interrupted when operating the bench grind-
er, complete the process and switch the bench grinder
off before looking up.
6. Always hold the workpiece firmly against the tool rest.
7. Never attempt to cut anything with the grinding wheel.
8. Do not use the bench grinder unless all guards are in
place. Do not operate with any guard disabled, damaged,
or removed. Moving guards must move freely and close
instantly.
9. Disconnect the power source and allow the wheels to
come to a complete stop before making any adjustments
to either the machine or the grinding wheels.
10. Clean the machine thoroughly when changing ma-
terial types in workpieces. Combining certain materials
can increase the chances of an explosion or fire hazard.
11. Should any component of your bench grinder be
missing/damaged or fail in any way, shut off the switch
and remove the plug from power supply outlet. Have a
certified technician replace the missing, damaged, or
failed parts using only identical replacement parts before
resuming operation.
7

ELECTRICAL INFORMATION
AMPERAGE REQUIRED GAUGE FOR EXTENSION CORDS
25 ft. 50 ft. 100 ft. 150 ft.
2.1A 18 gauge 16 gauge 16 gauge 14 gauge
3. Check
with a licensed electrician or service personnel if you do not completely
understand the grounding instructions or whether the tool is properly grounded.
4. Use only three-wire extension cords that have three-pronged plugs and outlets
that accept the tool’s plug. Repair or replace a damaged or worn cord immediately.
CAUTION! In all cases, make certain the outlet in question is properly grounded. If
you are not sure, have a licensed electrician check the outlet.
GUIDELINES AND RECOMMENDATIONS FOR EXTENSION CORDS
When using an extension cord, be sure to use one heavy enough to carry the current your
GROUNDING INSTRUCTIONS
In the event of a malfunction or breakdown , grounding provides the path of least resistance for an electric
current and reduces the risk of electric shock. This tool is equipped with an electric cord that has an
equipment grounding conductor and a grounding plug. The plug MUST be plugged into a matching outlet
that is properly installed and grounded in accordance with ALL local codes and ordinances.
1. Do not modify the plug provided. If it will not fit the outlet, have the proper outlet installed by a licensed
electrician.
2. Improper connection of the equipment grounding conductor can result in electric shock. The conductor
with the green insulation (with or without yellow stripes) is the equipment grounding conductor. If repair or
replacement of the electric cord or plug is necessary, DO NOT connect the equipment grounding conductor
to a live terminal.
1. Examine extension cord before use. Make sure your extension cord is properly wired and in good condition.
Always replace a damaged extension cord or have it repaired by a qualified person before using it.
2. Do not abuse extension cord. Do not pull on cord to disconnect from receptacle; always disconnect by pulling on
plug. Disconnect the extension cord from the receptacle before disconnecting the product from the extension cord.
Protect your extension cords from sharp objects, excessive heat and damp/wet areas.
3. Use a separate electrical circuit for your tool. This circuit must not be less than a 12-gauge wire and should be
protected with a 15A time-delayed fuse. Before connecting the motor to the power line, make sure the switch is in
the OFF position and the electric current is rated the same as the current stamped on the motor nameplate. Running
at a lower voltage will damage the motor.
Fig. 1
product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.
The table below shows the correct size to be used according to cord length and ampere rating. When in doubt, use
a heavier cord. The smaller the gauge number, the heavier the cord.
8

UNPACKING & PACKING LIST
UNPACKING
With the help of a friend or trustworthy foe, carefully remove the Bench Grinder from the packaging. Make sure to
take out all contents and accessories. Do not discard the packaging until everything is removed. Check the packing
list below to make sure you have all of the parts and accessories. If any part is missing or broken, please contact
our customer service at 1-800-232-1195 (M-F 8-5 CST), or email [email protected].
PACKING LIST
WARNING! Do not plug in or turn on the tool until it is fully assembled according to the instructions. Failure
to follow the safety instructions may result in serious personal injury.
1. Eye Shield Assembly...........................................2
2. Eye Shield Arm....................................................2
3. Locking Knob M5................................................2
4. Tool Rest.............................................................2
5. Lock Washer 6....................................................2
6. Flat Washer 6......................................................2
7. Carriage Head Screw M6x14...............................2
8. Tool Rest Knob M6 .............................................2
9. Hex Head Bolt M6x30 .........................................2
10. Spark Deflector .................................................2
11. Screw, Flat Washer, Spring Washer Kit .............2
9

KNOW YOUR BENCH GRINDER
TOOL PURPOSE
Sharpen bits, drill bits, chisels, gouges, and other cutting tools all with your WEN Bench Grinder. Refer to the fol-
lowing diagrams to become familiarized with all the parts and controls of your bench grinder. The components will
be referred to later in the manual for assembly and operation instructions.
1. INNER WHEEL GUARD - Covers the grinding wheels
and protects against accidental contact.
2. TOOL RESTS - Used to support the workpiece.
3. 36-GRIT GRINDING WHEEL - Used to remove heavy
material from the workpiece.
4. EYESHIELD - Protective see-through shields to pre-
vent any loose debris from contacting the operator.
5. LOCKING KNOB - Lock the eyeshield in position.
6. FLEXIBLE WORK LIGHT - Provides light to the opera-
tor during grinding operations.
7. SPARK DEFLECTOR - Prevents hot sparks and debris
from contacting the operator.
8. WHEEL COVER - Covers the grinding wheels and pro-
vides quick access for routine maintenance.
9. 60-GRIT GRINDING WHEEL - Used to remove light
material from the workpiece.
10. ON/OFF SWITCH - Used to turn ON and turn OFF the
bench grinder.
11. MOTOR HOUSING - Contains the electrical motor.
1
2
3
4
5
6
7
8
9
10
11
10




1
2 3
Screw
Right Shield
Arm 1
2
Locking
Knob
ASSEMBLY & ADJUSTMENTS
TOOL REST ASSEMBLY
1. Place the left tool rest (Fig. 1 - 1) over the tool rest bracket (Fig. 1 - 2).
2. Align the left tool rest with the hole on the bracket and slide the carriage head
screw through from the left side.
3. Screw the tool rest knob into place (Fig. 1 - 3)
4. Adjust the tool rest within 1/16 in. of the grinding wheel. To adjust this dis-
tance, loosen the knob and move the tool rest.
5. Assemble the right tool rest in a similar manner.
SPARK DEFLECTOR AND EYESHIELD ASSEMBLY
1. Place the spark deflector against the right wheel guard and secure into place
using a screw (Fig. 2 - 1). Adjust the spark deflector within 1/16” (0.0625”) of
the right grinding wheel and tighten the screw.
2. Attach right shield arm to the right wheel guard using a bolt and washer and
secure into place (Fig. 2 - 2).
3. Attach the right eye shield to the right shield arm and tighten the locking knob
into place (Fig. 3).
4. Attach spark deflector and eye shield to the left guard in a similar manner.
WORK LIGHT
The bench grinder is provided with a flexible work light to assist in visibility of
the workpiece. The bench grinder is NOT provided with a light bulb for the flex-
ible work light. To reduce the risk of fire, use a 120V 40W (or less) track light
bulb, type R20, medium base or equivalent (not included). DO NOT use a light
bulb that extends past the end of the light housing.
WARNING! To avoid injury from unexpected starting or electrical shock, do not plug the power cord into a
source of power during unpacking and assembly. This cord must remain unplugged whenever you are adjusting/
assembling the grinder.
CAUTION! The flexible work light housing will remain hot for a few minutes after turning it OFF. Avoid contact
with housing until it cools.
11
Washer
Bolt
Spark
Arrestor
Eye
Shield
Fig. 1
Fig. 2
Fig. 3

ASSEMBLY & ADJUSTMENTS
MOUNTING TO THE WORK SURFACE
The bench grinder should be firmly attached to a reliable work surface using mounting hardware (not included)
through the base of the grinder’s mounting holes. This will prevent the bench grinder from vibration, walking or
tipping during operation.
NOTE: This bench grinder is compatible with the WEN 4288 Cast Iron Bench Grinder Pedestal Stand.
1. Prepare 1/4 in. bolts, flat washers, lock washers and hex nuts (not included). The bolt length should be 1-1/2 in.
longer than the thickness of the workbench.
2. Locate and mark the holes where the grinder is to be mounted onto the work surface.
NOTE: If mounting to a work bench, drill four 3/8 in. diameter holes through the workbench.
3. Place the bench grinder onto the workbench, aligning holes in base with holes in the workbench.
4. Insert four 1/4 in. diameter bolts and washers and attach with nuts securely.
WARNING! Always make sure your bench grinder is securely mounted to a workbench. Failure to do so
could result in an accident resulting in possible serious personal injury.
OPERATION
BASIC OPERATION
1. Your bench grinder has a medium wheel (60 grit) for medium material removal and general purpose grinding, and
a coarse wheel (36 grit) for fast material removal.
2. To operate the bench grinder, always wear safety glasses and turn the tool on while standing at the side and not
in front of the grinder. Allow it to reach full speed before grinding.
3. Hold the work piece firmly against the tool rest. Hold very small pieces with pliers or other suitable clamps.
4. Feed the work piece smoothly and evenly into the grinding wheel.
5. Move the work piece slowly and avoid jamming the work piece against the wheel. If the wheel tends to slow down
from excessive force, you should occasionally release the pressure to let the wheel return to full speed.
6. Grind only on the face of the grinding wheel and never the side of it.
CAUTION! Keep all bystanders a safe distance away from the tool.
12

OPERATION
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.
SHARPENING KNIVES
Remove metal from both faces of most knives, working from the heavy end of the blade toward the tip.
SHARPENING SCREWDRIVERS
The end of a properly sharpened screwdriver will be a perfect rectangle, 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 shoulder or shank.
They should be flat with intersecting faces perpendicular. Hold each face of the screwdriver against the wheel to true
it up, and then ease the end straight into the stone to grind it true.
LAWN MOWER BLADES
Lawn mower blades are usually sharpened on only one side and dressed up slightly on the other. After sharpening,
be sure to balance blade by removing additional material from heavy end. There are a number of inexpensive cone
balancers on the market for this purpose. Unbalanced blades can cause serious crank shaft damage to your lawn
mower. Always remove spark plug wires from the mower before servicing the blades to prevent accidental starting.
CAUTION! Prolonged grinding will cause most materials to become hot. Use care when handling such ma-
terials.
MAINTENANCE
Before using, check to make sure parts are not damaged, missing, or worn. Check for alignment of moving parts,
binding of moving parts, improper mounting, or any other conditions that may affect the grinder’s operation. If any
of these conditions exist, do not use until parts are replaced or the grinder is properly repaired. Frequently blow or
vacuum dust from all surfaces and the motor housing.
WARNING! For your own safety, turn the switch OFF and remove the plug from the electrical outlet before
adjusting or performing maintenance or lubrication work on the grinder.
WARNING! Any attempt to repair or replace electrical parts on this tool may be hazardous. Repairs should
be done by a qualified service technician only.
GENERAL CLEANING AND MAINTENANCE
1. Regularly check the tool and use a soft brush to remove accumulated dust. Wear safety goggles to protect your
eyes while cleaning.
2. If the body of the grinder needs cleaning, wipe down with soft damp cloth. A mild detergent can be used. Do not
use alcohol, petrol, or other similar cleaning agents. Do not make contact with grinding wheels with any damp cloth.
3. Always make sure the eye shields are transparent and not blocking the view of the grinding wheel.
4. In normal use, grinding wheels may become cracked, grooved, rounded at the edges, chipped, out of alignment
or loaded with foreign material. Cracked wheels should be replaced IMMEDIATELY. While any of the other conditions
can be remedied, new wheels sometimes require dressing to make them round.
13

MAINTENANCE
CAUTION! Never use caustic agents to clean the plastic parts of the tool. Water must never come into con-
tact with the grinder. The use of any other accessories is not recommended and may result in serious injury.
5. If you must replace a wheel be sure to obtain one with a safe rated speed at least as high as the “NO LOAD” RPM
marked on your grinder’s nameplate. Replacement wheels must have a 6 inch diameter, a matching arbor size and
should be a maximum of 3/4 inch wide. Always check new wheels for cracks. Be sure the tool is unplugged before
attempting repairs and maintenance.
CHANGING THE GRINDING WHEEL (FIG. 4)
In normal use, grinding wheels may become cracked, grooved, rounded at the edges, chipped, out of true or loaded
with foreign material. Grinding wheels should be inspected before each use. Cracked wheels should be replaced
immediately. Any of the other conditions can be remedied with a dressing tool (not included).
To replace a grinding wheel:
1. Ensure that the machine is powered off and unplugged.
2. Using a Phillips head screwdriver and adjustable wrench, remove the three bolts and nuts from the wheel cover.
Repeat for the other side.
4. Using two 19 mm wrenches, loosen the arbor hex nut found on the outside edge of the grinding wheel. The left
side hex nut is loosened by using a clockwise wrench rotation while the right side hex nut is loosened with a coun-
terclockwise rotation.
If you are having difficulty with the two-wrench method, you may try holding one wheel while loosening the nut.
Wear gloves if you decide to use this method to avoid scraping your hand or fingers. Remove the arbor hex nut and
outer wheel flange.
5. Replace the grinding wheel with a new grinding wheel that has a speed rating higher than 3450 RPM. The outer
diameter of the wheel should be 6 inches and the arbor size should be 1/2 of an inch. Do not remove labels from
the grinding wheels.
6. Once the wheel has been replaced, re-attach the outer flange and the arbor hex nut.
Caution: Do not overtighten the nut, or use an impact driver to tighten. This can cause damage to the grinding
wheels, which could cause personal injury.
7. Replace the wheel cover and secure with the nuts and bolts. Make sure all guards, shields and work rests are
correctly positioned before operation.
POWER CORD REPLACEMENT
If replacement of the power supply cord is necessary, this must be done by an authorized service center in order to
avoid a safety hazard.
STORAGE
Store the bench grinder and the grinding wheels to prevent them from the potential hazards of moisture, contain-
ments, and other damage.
14

15
Fig. 15
A - Screw
B - Wheel guard cover
C - Wheel nut
D - Outer flange
E - Grinding wheel
F - Flange nut
G - Inner flange
H - Spindle shaft
A
B
CD
E
F
GH
Wheel Cover
Grinding Wheel
Hex Nut Outer Flange Inner Flange Arbor
MAINTENANCE
Fig. 4
15