Optoma Projector Ew1610 Specifications

							© Copyright 2008 Optoma Technology, Inc. DLP® and the DLP logo are registered trademarks of Texas Instruments. All sp\
ecifications subject to change at any time.
LIVE THE HIGH-DEFINITION LIFESTYLE
Datasheet – EW1610
EW1610  Multimedia Projector 
Set It and Play It
The Optoma EW1610 has a native 16:10 aspect ratio and a high 
brightness level that matches up with widescreen laptops and DVD 
content.  It has the latest color processing technologies, features and \
connectivity options to be the best all-around presentation tool. 
         Features
  Native WXGA resolution at 2700 lumens and 2000:1 contrast ratio
   Lightweight at 4.4 pounds with 3000 hours of lamp life
   Wide-range of connectivity options including: DVI-I w/HDCP, 
VGA-In/Out, S-Video, RS-232 and USB
   Presentation-friendly remote control with laser pointer; 
password protection available through remote control
   DLP
® chipset and latest color processing technologies from 
Texas Instruments
         Specifications
Display Technology
0.65” DMD DLP Technology by
Texas Instruments
Resolution
Native WXGA (1280 x 800)
Maximum Resolution
WUXGA (1920 x 1200)
Brightness (Typical)
2700 ANSI Lumens
Contrast Ratio
2000:1 (Full On/Full Off)
Lamp Life and Type
3000/4000 Hours (STD/ECO)
200W UHP
Throw Ratio
1.55-1.70:1 (Distance/Width)
Image Size (Diagonal)
32.8” to 359.4” (0.83 to 9.12m)
Projection Distance
3.9’ to 39.4’ (1.2 to 12m)
Remote Control
Fully Featured Remote Control
w/Mouse and Laser Pointer
Displayable Colors
16.7 Million
Audio
One 2-Watt Speaker
User Controls
Complete On Screen Menu
Adjustments in 22 Languages
Keystone Correction
± 16º Vertical Computer Compatibility
VGA, SVGA, XGA, WXGA, SXGA+, 
WXGA+, UXGA, WUXGA Resized, 
VESA, PC and Macintosh Compatible
Video Compatibility
NTSC, PAL, SECAM, SDTV (480i), 
EDTV (480p), HDTV (576i/p, 720p, 
1080i/p)
Uniformity
85%
Aspect Ratio
16:10 Native, 4:3, 5:4 & 16:9 
Compatible
Projection Lens
F=2.41~2.55, f=21.79~23.99mm,
1.10X Manual Zoom and Focus
Monitor Loop Through
D-Sub 15 VGA Output (Functional in 
Both Normal and Standby Modes)
I/O Connectors
DVI-I w/HDCP,VGA-In, S-Video, 
VGA-Out, Audio-In, USB, RS-232
Security
Kensington® Lock Port
Projection Method
Front, Rear, Ceiling Mount, Table Top
Weight
4.4 lbs (1.8 kg)
Dimensions (W x H x D)
10.2” x 2.9” x 7.4”
(259 x 73 x 188 mm)
Noise Level (STD/ECO)
33dB/31dB
Horizontal Scan Rate
31.5 to 100 kHz
Vertical Refresh Rate
47 to 85 Hz
Power Supply
AC Input 100-240V, Auto-Switching
Power Consumption
270 Watts (Maximum), 
						

							2  – English
TABLE OF CONTENTS
  Table of Contents ......................................................................................................................\
.......................................2
 Warranty ....................................................................................................................................................................\
.......2
 Introduction ......................................................................................................................\
................................................2
  General Safety Rules ......................................................................................................................\
...............................3-4
  Specific Safety Rules 
.......................................................................................................................\
.................................5
 Symbols .....................................................................................................................................................................\
.......6
 Electrical  ....................................................................................................................................................................\
.......7
 Features ....................................................................................................................................................................\
........8
 Assembly ....................................................................................................................................................................\
...8-9
 Operation ....................................................................................................................................................................\
....10
 Maintenance ......................................................................................................................\
.............................................11
  Figure numbers (illustrations) ........................................................................\
............................................................12-15
  Parts Ordering / Service  ......................................................................................................................\
..............Back page
INTRODUCTION
This tool has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability have 
been given top priority in the design of this product making it easy to maintain and operate.
WARRANTY
RYOBI® POWER TOOL - LIMITED THREE YEAR WARRANTY AND 90 DAY EXCHANGE POLICY
One World Technologies, Inc., warrants its RYOBI® power tools with the following conditions:
90-DAY EXCHANGE POLICY: During the first 90 days after date of purchase, you may either request service under this 
warranty or you may exchange any RYOBI® power tool which does not work properly due to defective workmanship or 
materials by returning the power tool to the dealer from which it was purchased. To receive a replacement power tool 
or requested warranty service, you must present proof of purchase and return all original equipment packaged with the 
original product. The replacement power tool will be covered by the limited warranty for the balance of the three year 
period from the date of the original purchase.
WHAT THIS WARRANTY COVERS: This warranty covers all defects in workmanship or materials in your RYOBI® power 
tool for a period of three years from the date of purchase. With the exception of batteries, power tool accessories are 
warranted for ninety (90) days. Batteries are warranted for three years.
HOW TO GET SERVICE: Just return the power tool, properly packaged and postage prepaid, to an Authorized Service 
Center. You can obtain the location of the Service Center nearest you by contacting a service representative at One 
World Technologies, Inc., P.O. Box 1207, Anderson, SC 29622-1207, by calling 1-800-525-2579 or by logging on to 
www.ryobitools.com. When you request warranty service, you must also present proof of purchase documentation, which 
includes the date of purchase (for example, a bill of sale). We will repair any faulty workmanship, and either repair or replace 
any defective part, at our option. We will do so without any charge to you. We will complete the work in a reasonable time, 
but, in any case, within ninety (90) days or less.
WHAT’S NOT COVERED: This warranty applies only to the original purchaser at retail and may not be transferred. This 
warranty only covers defects arising under normal usage and does not cov\
er any malfunction, failure or defects resulting 
from misuse, abuse, neglect, alteration, modification or repairs by other than Authorized Service Centers. One World 
Technologies, Inc. makes no warranties, representations or promises as to the quality or performance of its power tools 
other than those specifically stated in this warranty.
ADDITIONAL LIMITATIONS: Any implied warranties granted under state law, including warranties of merchantability or 
fitness for a particular purpose, are limited to three years from the date of purchase. One World Technologies, Inc. is not 
responsible for direct, indirect, or incidental damages, so the above limitations and exclusions may not apply to you. This 
warranty gives you specific legal rights, and you may also have other ri\
ghts which vary from state to state. 
						

							3  – English
GENERAL SAFETY RULES
 WARNING:
 Read and understand all instructions. Failure to follow 
all instructions listed below, may result in electric shock, 
fire and/or serious personal injury.
READ ALL INSTRUCTIONS
 KNOW YOUR POWER TOOL. Read the operator’s 
manual carefully. Learn the grinder’s applications and 
limitations as well as the specific potential hazards related 
to this tool.
 GUARD AGAINST ELECTRICAL SHOCK B Y  
PREVENTING BODY CONTACT WITH GROUNDED  
SURFACES. For example, pipes, radiators, ranges,  
refrigerator, enclosures.
 KEEP GUARDS IN PLACE and in good working order.
 REMOVE ADJUSTING KEYS AND WRENCHES. Form 
the habit of checking to see that keys and adjusting 
wrenches are removed from tool before turning it on.
 KEEP WORK AREA CLEAN. Cluttered areas and benches 
invite accidents. DO NOT leave tools or pieces of wood 
on the bench grinder while it is in operation.
 DO NOT USE IN DANGEROUS ENVIRONMENTS. Do 
not use power tools in damp or wet locations or expose 
to rain. Keep the work area well lit.
 KEEP CHILDREN AND VISITORS AWAY. All  
visitors should wear safety glasses and be kept a safe 
distance from work area. Do not let visitors contact 
tool or extension cord while operating.
 MAKE WORKSHOP CHILDPROOF with padlocks and 
master switches, or by removing starter keys.
 DON’T FORCE TOOL. It will do the job better and safer 
at the feed rate for which it was designed.
 USE RIGHT TOOL. Don't force the tool or attachment to 
do a job it was not designed for. Don't use it for a purpose 
not intended.
 USE THE PROPER EXTENSION CORD. Make sure  
your extension cord is in good condition. Use only a 
cord heavy enough to carry the current your product will 
draw. An undersized cord will cause a drop in line volt-
age resulting in loss of power and overheating. A wire 
gauge size (A.W.G.) of at least 16 is recommended for an 
extension cord 25 feet or less in length. If in doubt, use 
the next heavier gauge. The smaller the gauge number, 
the heavier the cord.
 DRESS PROPERLY. Do not wear loose clothing, gloves, 
neckties, or jewelry. They can get caught and draw you 
into moving parts. Rubber gloves and nonskid footwear 
are recommended when working outdoors. Also wear 
protective hair covering to contain long hair.
 ALWAYS WEAR SAFETY GLASSES WITH SIDE 
SHIELDS. Everyday eyeglasses have only impact- 
resistant lenses, they are not safety glasses.
 SECURE WORK. Use clamps or a vise to hold work  
when practical. It’s safer than using your hand and frees 
both hands to operate tool.
 DON’T OVERREACH. Keep proper footing and 
balance at all times.
 MAINTAIN TOOLS WITH CARE. Keep tools sharp 
and clean for better and safer performance. Follow instruc-
tions for lubricating and changing accessories.
 DISCONNECT TOOLS. When not in use, before 
servicing, or when changing attachments, grinding  
wheels, etc., all tools should be disconnected.
 AVOID ACCIDENTAL STARTING. Be sure switch is off 
when plugging in any tool.
 USE RECOMMENDED ACCESSORIES. Consult the 
operator’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 cutting 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 perform 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 must 
be properly repaired or replaced by an authorized service 
center to avoid risk of personal injury.
 PROTECT YOUR LUNGS. Wear a face or dust mask if 
the grinding operation is dusty.
 PROTECT YOUR HEARING. Wear hearing protection 
during extended periods of operation.
 DO NOT ABUSE CORD. Never yank cord to discon-
nect from receptacle. Keep cord from heat, oil, and sharp 
edges.
 USE OUTDOOR EXTENSION CORDS. When tool  
is used outdoors, use only extension cords with  
approved ground connection that are intended for use 
outdoors and so marked.
	WHEELS COASTS AFTER BEING TURNED OFF.
 NEVER USE IN AN EXPLOSIVE ATMOSPHERE. 
Normal sparking of the motor could ignite fumes. 
						

							4  – English
 INSPECT TOOL CORDS PERIODICALLY. I f  
damaged, have repaired by a qualified service technician at 
an authorized service facility. The conductor with insulation 
having an outer surface that is green 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. Repair or replace a damaged or worn cord 
immediately. Stay constantly aware of cord location and 
keep it well away from the rotating grinding wheels.
 INSPECT EXTENSION CORDS PERIODICALLY and 
replace if damaged.
 DO NOT USE TOOL IF SWITCH DOES NOT TURN IT 
ON AND OFF. Have defective switches replaced by an 
authorized service center.
 USE ONLY CORRECT WHEELS. Do not use wheels 
with incorrect size holes. Never use wheel wash-
ers or wheel bolts that are defective or incorrect. The  
maximum wheel capacity of your grinder is 8in.
GENERAL SAFETY RULES
 NEVER TOUCH WHEEL or other moving parts during 
use.
	NEVER START A TOOL WHEN ANY ROTATING  
COMPONENT IS IN CONTACT WITH THE 
WORKPIECE.
 DO NOT OPERATE A TOOL WHILE UNDER THE  
INFLUENCE OF DRUGS, ALCOHOL, OR ANY  
MEDICATION.
 WHEN SERVICING use only identical replacement parts. 
Use of any other parts may create a hazard or cause 
product damage.
 USE ONLY RECOMMENDED ACCESSORIES listed 
in this manual or addendums. Use of accessories that 
are not listed may cause the risk of personal injury. 
Instructions for safe use of accessories are included 
with the accessory. 
 DOUBLE CHECK ALL SETUPS. Make sure wheel is 
tight and not making contact with workpiece before 
connecting to power supply. 
						

							5  – English
	NEVER reach to pick up a workpiece, a piece of scrap, 
or anything else that is in or near the grinding path of the 
wheel.
	AVOID AWKWARD OPERATIONS AND HAND POSI-
TIONS where a sudden slip could cause your hand to 
move into the wheel. ALWAYS make sure you have good 
balance.
	NEVER stand or have any part of your body in line with 
the path of the wheel.
	DO NOT USE TOOL IF SWITCH DOES NOT TURN IT 
ON AND OFF. Have defective switches replaced by an 
authorized service center.
	DO NOT TURN THE MOTOR SWITCH ON AND OFF 
RAPIDLY. This could cause the wheel to loosen and could 
create a hazard. Should this ever occur, stand clear and 
allow the wheel to come to a complete stop. Disconnect 
your grinder from the power supply and securely retighten 
the wheel nut.
	USE ONLY FLANGES furnished with this bench 
grinder. 
	IF ANY PART OF THIS GRINDER IS MISSING or should 
break, bend, or fail in any way, or should any electrical 
component fail to perform properly, shut off the power 
switch, remove the machine plug from the power source 
and have damaged, missing, or failed parts replaced be-
fore resuming operation.
	MAKE SURE THE GRINDER IS SECURELY MOUNTED 
as described in the operating instructions before con-
necting the tool to a power supply. 
	DO NOT OVERTIGHTEN THE WHEEL NUT. Exces-
sive tightening can cause the wheel to crack during 
operation.
	ALWAYS USE THE GRINDER'S WHEEL GUARDS AND 
SAFETY SHIELDS.
	INSPECT GRINDING WHEEL for visible defects. Check 
the wheel for fissures and cracks, and test for normal 
operation prior to use. Replace cracked wheel immedi-
ately.
	ADJUST distance between wheel and work rest to main- 
tain 1/16 in. or less separation as the diameter of the 
wheel decreases with use. The value of separation used 
in the marking is to be the separation recommended by 
the manufacturer but shall not be more than 1/8 in.
	ALWAYS EASE THE WORKPIECE AGAINST THE 
ABRASIVE WHEEL when starting to grind. A harsh 
impact can break the wheel. Use light pressure when 
starting to grind; too much pressure on a cold wheel can 
cause the wheel to crack.
	RISK OF INJURY DUE TO ACCIDENTAL STARTING. 
Do not use in an area where children may be present.
	NEVER START THE GRINDER when the wheel is in 
contact with the workpiece.
	SECURE WORK. Always hold workpiece firmly against 
the work rest.
	DO NOT USE THE BENCH GRINDER if the flange nut 
or clamp nut is missing or if the spindle shaft is bent.
	FREQUENTLY clean grinding dust from beneath grind-
e r.
	STAY ALERT AND EXERCISE CONTROL. Watch what 
you are doing and use common sense. Do not operate 
tool when you are tired. Do not rush.
 IF THE POWER SUPPLY CORD IS DAMAGED, it must 
be replaced only by the manufacturer or by an authorized 
service center to avoid risk.
 ALWAYS WEAR EYE PROTECTION WITH SIDE 
SHIELDS MARKED TO COMPLY WITH ANSI Z87.1. 
Failure to do so could result in objects being thrown into 
your eyes, resulting in possible serious injury.
 SAVE THESE INSTRUCTIONS. Refer to them  
frequently and use to instruct other users. If you loan 
someone this tool, loan them these instructions also.
SPECIFIC SAFETY RULES
WARNING:
This product and some dust created by power sanding, sawing, grinding, drilling, and other construction activities may 
contain chemicals, including lead, known to the State of California 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 and cement and other masonry products and,
-arsenic and chromium from chemically treated lumber.
Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your 
exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially 
designed to filter out microscopic particles.   
						

							6  – English
SYMBOLS
Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper 
interpretation of these symbols will allow you to operate the product better and safer.
Safety AlertIndicates a potential personal injury hazard.
Wet Conditions AlertDo not expose to rain or use in damp locations.
Read The Operator’s ManualTo reduce the risk of injury, user must read and understand 
operator’s manual before using this product.
Eye ProtectionAlways wear eye protection with side shields marked to comply 
with ANSI Z87.1.
VVoltsVoltage
AAmperesCurrent
HzHertzFrequency (cycles per second)
WWattPower
minMinutesTime
Alternating CurrentType of current
noNo Load SpeedRotational speed, at no load
.../minPer MinuteRevolutions, strokes, surface speed, orbits etc., per minute
SYMBOLNAME
The following signal words and meanings are intended to explain the levels of risk associated with this 
product. 
SYMBOL  SIGNAL  MEANING
DANGER: 
WARNING:
CAUTION:
CAUTION:
Indicates an imminently hazardous situation, which, if not avoided, will 
result in death or serious injury.
Indicates a potentially hazardous situation, which, if not avoided, could 
result in death or serious injury.
Indicates a potentially hazardous situation, which, if not avoided, may result 
in minor or moderate injury. 
(Without Safety Alert Symbol) Indicates a situation that may result in prop-
erty damage. 
						

							7  – English
SPEED AND WIRING
The no-load speed of this tool is approximately 3,600 rpm. 
This speed is not constant and decreases under a load 
or with lower voltage. For voltage, the wiring in a shop 
is as important as the motor’s horsepower rating. A line 
intended only for lights cannot properly carry a power 
tool motor. Wire that is heavy enough for a short distance 
will be too light for a greater distance. A line that can 
support one power tool may not be able to support two  
or three tools.
GROUNDING INSTRUCTIONS
See Figure 1, page 12.
In the event of a malfunction or breakdown, grounding 
provides a path of least resistance for electric current to 
reduce the risk of electric shock. This tool is equipped with 
an electric cord having an equipment-grounding conduc-
tor 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.
Do not modify the plug provided. If it will not fit the outlet, 
have the proper outlet installed by a qualified electrician. 
Improper connection of the equipment-grounding conductor 
can result in a risk of electric shock. The conductor with 
insulation having an outer surface that is green with or with-
out yellow stripes is the equipment-grounding conductor. If 
repair or replacement of the electric cord or plug is neces-
sary, do not connect the equipment-grounding conductor 
to a live terminal.
Check with a qualified electrician or service personnel if the 
grounding instructions are not completely understood, or if 
in doubt as to whether the tool is properly grounded.
Repair or replace a damaged or worn cord immediately.
This tool is intended for use on a circuit that has an outlet 
like the one shown in figure 1. It also has a grounding pin 
like the one shown. 
ELECTRICAL
EXTENSION CORDS
Use only 3-wire extension cords that have 3-prong ground-
ing plugs and 3-pole receptacles that accept the tool's plug. 
When using a power tool at a considerable distance from the 
power source, use an extension cord heavy enough to carry 
the current that the tool will draw. An undersized extension 
cord will cause a drop in line voltage, resulting in a loss of 
power and causing the motor to overheat. Use the chart 
provided below to determine the minimum wire size required 
in an extension cord. Only round jacketed cords listed by 
Underwriter's Laboratories (UL) should be used.
**Ampere rating  (on tool data plate)
    0-2.0 2.1-3.4  3.5-5.0 5.1-7.0  7.1-12.0   12.1-16.0
Cord Length      Wire Size (A.W.G.)
 25’  16  16 16 16 14  14
 50’  16  16 16 14 14  12
 100’  16 16 14 12 10  —
**Used on 12 gauge - 20 amp circuit.NOTE: AWG = American Wire Gauge
When working with the tool outdoors, use an extension cord 
that is designed for outside use. This is indicated by the  
letters “W-A” or “W” on the cord's jacket.
Before using an extension cord, inspect it for loose or  
exposed wires and cut or worn insulation.
WARNING:
Keep the extension cord clear of the working area. 
Position the cord so that it will not get caught on lumber, 
tools or other obstructions while you are working with a 
power tool. Failure to do so can result in serious personal 
injury.
WARNING:
Check extension cords before each use. If damaged 
replace immediately. Never use tool with a damaged cord 
since touching the damaged area could cause electrical 
shock resulting in serious injury.
ELECTRICAL CONNECTION
This tool is powered by a precision built electric motor. It 
should be connected to a power supply that is 120 volts, 
60 Hz, AC only (normal household current). Do not operate 
this tool on direct current (DC). A substantial voltage drop 
will cause a loss of power and the motor will overheat. If 
the grinder does not operate when plugged into an outlet, 
double check the power supply. 
						

							8  – English
FEATURES
PRODUCT SPECIFICATIONS
Wheel Diameter ...........................................................8 in.
Wheel Thickness .........................................................1 in.
Arbor Hole ................................................................5/8 in.
KNOW YOUR BENCH GRINDER
See Figure 2, page 12.
The safe use of this product requires an understanding of 
the information on the tool and in this operator’s manual as 
well as a knowledge of the project you are attempting. Before 
use of this product, familiarize yourself with all operating 
features and safety rules.
ON/OFF SWITCH
The bench grinder features a front access On/Off switch for 
convenience and safety. 
GRINDING WHEELS
Equipped with course and fine grinding wheels to suit most 
applications.
SAFETY SHIELD AND SPARK DEFLECTOR
The safety shields and spark deflectors are provided to 
ensure your safety.
WORK REST
Provides a stable work surface when performing most grind-
ing tasks. A grooved work rest is provided to allow for the 
grinding of drill bits
AUTO-ON WORKLIGHT
Your bench grinder comes equipped with a permanently 
mounted worklight that automatically lights when switch is 
turned on.
COOLANT TRAY
The coolant tray is used when grinding metal objects.
No Load Speed .....................................3600 r/min. (RPM)
Input ...............................120 V, AC only, 60 Hz, 3.0 Amps
Net Weight ............................................................41.2 lbs.
WARNING:
If any parts are damaged or missing do not operate this 
product until the parts are replaced. Use of this product 
with damaged or missing parts could result in serious 
personal injury.
WARNING:
Do not attempt to modify this tool or create accesso-
ries not recommended for use with this tool. Any such 
alteration or modification is misuse and could result in a 
hazardous condition leading to possible serious personal 
injury.
WARNING:
Do not connect to power supply until assembly is 
complete. Failure to comply could result in accidental 
starting and possible serious personal injury.
ASSEMBLY
UNPACKING
See Figures 3-4, page 12.
This product requires assembly.
  Carefully remove the tool and any accessories from the 
box. Make sure that all items listed in the packing list are 
included.
WARNING:
Do not use this product if any parts on the Loose Parts 
List are already assembled to your product when you 
unpack it. Parts on this list are not assembled to the 
product by the manufacturer and require customer instal-
lation. Use of a product that may have been improperly 
assembled could result in serious personal injury.
 Inspect the tool carefully to make sure no breakage or 
damage occurred during shipping.
 Do not discard the packing material until you have care-
fully inspected and satisfactorily operated the tool.
 If any parts are damaged or missing, please call 
1-800-525-2579 for assistance. 
						

							9  – English
WARNING:
Always disconnect the bench grinder from the power 
source before performing any assembly. Failure to do so 
could result in accidental starting resulting in possible 
serious personal injury.
MOUNTING SAFETY SHIELD ASSEMBLY
See Figure 5, page 13.
 Fasten the safety shield assemblies to the safety shield 
brackets using the fastening knob and small washer.
 NOTE: The slotted part of the safety shield bracket must 
face towards the grinding wheel guard.
 Attach the safety shield assembly and bracket to the 
wheel guard using a washer, lock washer and rear shield 
bracket knob.
WARNING:
Always spin the wheel by hand before turning on the 
grinder to make sure the spark deflector doesn’t hit the 
grinding wheel.
MOUNTING WORK REST
See Figure 6, page 13.
 Remove the knob, star washer, and washer from the car-
riage bolt on the lower portion of wheel guard.
 Using the slotted screw, star washer, washer and fasten-
ing knob, attach the work rest bracket to the inside of the 
wheel guard as shown.
 NOTE: The grooved work rest mounts on the left side.
ASSEMBLY
 NOTE: The work rest bracket’s lower slot must be posi-
tioned over the pin on the guard.
 With the remaining fastening knob, install the work rest 
to the bracket.
NOTE: Adjust the distance between the wheel and the work 
rest to maintain 1/16 in. or less separation as the diameter 
of the wheel decreases with use.
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.
MOUNTING GRINDER TO WORKBENCH
See Figure 7, page 13.
If grinder is to be used in a permanent location, it should be 
fastened securely to a firm supporting surface, such as a 
workbench with bolts.
 Use 1/4 in. bolts, washers, and nuts (not included). The 
bolt length should be 1-1/2 in. plus the thickness of the 
workbench.
 Locate and mark the holes where the grinder is to be 
mounted.
 Drill four 3/8 in. diameter holes through workbench.
 Place sander on workbench, aligning holes in base with 
holes drilled in workbench.
 Insert four 1/4 in. diameter bolts and washers and attach 
nuts securely. 
						

							10  – English
WARNING:
Do not allow familiarity with tools to make you care-
less. Remember that a careless fraction of a second is 
sufficient to inflict serious injury.
WARNING:
Always wear eye protection with side shields marked to 
comply with ANSI Z87.1. Failure to do so could result in 
objects being thrown into your eyes resulting in possible 
serious injury.
WARNING:
Do not use any attachments or accessories not 
recommended by the manufacturer of this tool. The use 
of attachments or accessories not recommended can 
result in serious personal injury.
APPLICATIONS
This product has been designed only for the purposes 
listed below:
 Sharpening drill bits
 Sharpening lawn mower blades
 Sharpening chisels and flat screwdrivers
BASIC OPERATION
To be efficient and work as designed, your tools should be 
kept sharp. Dull tools can and will cause accidents. 
Bench Grinders are ideal for sharpening tools such as 
chisels, planer blades, scissors, etc., and for removing rust 
or corrosion. 
WARNING:
Never sharpen or grind anything made of aluminum, 
brass, or copper.
Grinders remove material rapidly so pressure is the key to 
efficient grinding. 
The proper way to sharpen a tool and avoid overheating is:
 Keep the object in constant motion, moving it at an even 
pace.
 Never force a tool against the grinding wheel.
 Keep the tool cool by using either the coolant tray or a 
pan of water. 
 The grinding wheel should rotate “into” the object being 
sharpened.
OPERATION
NOTE: Excessive pressure may damage the tool, cause the 
motor to overheat, and prematurely wear down the grinding 
wheel.
 WARNING:
Excessive pressure on a cold wheel may cause the wheel 
to crack.
USING COOLANT TRAY
See Figure 8, page 13.
The built-in coolant tray allows you to cool overheated work-
pieces. Simply pull out the tray and fill half way with water 
or appropriate coolant.
ON/OFF SWITCH
See Figure 8, page 13.
The Bench Grinder features a front access On/Off switch for 
convenience and safety. 
SHARPENING TWIST DRILL BITS
See Figure 9, page 14.
Drill bits are best sharpened on a sharpening jig (available at 
most hardware stores). Begin on one side of the point at the 
existing angle, then twist the bit while maintaining contact 
with the grinding surface. Sharpen only the tip.
This technique requires considerable practice, so take your 
time and make a few “dry runs” first with the grinder off. Be 
sure to maintain the original cutting edge angle as this is 
important to the efficiency of your bits. One work rest has a 
V-groove angled to fit most drill bits.
SHARPENING LAWN MOWER BLADES
See Figure 10, page 14.
Lawn mower blades are usually sharpened on only one 
edge and dressed up slightly on the other. Perform this 
sharpening process on both cutting ends of the blade. 
After sharpening, be sure to balance the blade by removing 
additional material.
CAUTION:
An unbalanced lawn mower blade may cause excessive 
vibration which will damage the lawn mower.
SHARPENING CHISELS AND SCREWDRIVER 
BLADES
See Figure 11, page 14.
When sharpening chisels and screwdrivers, work rest should 
support the chisel at the correct angle against the wheel.