Ryobi BGH827, BGH616 User Manual
OPERATOR’S MANUAL
BENCH GRINDER
BGH616 and BGH827
Your bench grinder has been engineered and manufactured to Ryobi’s high standard for dependability, ease of operation,
and operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING: To reduce the risk of injury, the user must read and understand the operator's manual before using
this product.
Thank you for buying a Ryobi product.
SAVE THIS MANUAL FOR FUTURE REFERENCE
TABLE OF CONTENTS
n Table of Contents............................................................................................................................................................ 2
n Introduction..................................................................................................................................................................... 2
n General Safety Rules ...................................................................................................................................................3-4
n Specific Safety Rules ...................................................................................................................................................... 5
n Symbols .......................................................................................................................................................................6-7
n Electrical ......................................................................................................................................................................... 8
n Features .......................................................................................................................................................................... 9
n Tools Needed................................................................................................................................................................ 10
n Loose Parts ................................................................................................................................................................... 10
n Assembly .................................................................................................................................................................11-12
n Operation .................................................................................................................................................................13-14
n Maintenance ............................................................................................................................................................15-16
n Parts Ordering / Service ............................................................................................................................................... 18
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.
2
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
n 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.
n GUARD AGAINST ELECTRICAL SHOCK BY PREVENT-
ING BODY CONTACT WITH GROUNDED SURFACES.
For example, pipes, radiators, ranges, refrigerator enclosures.
n KEEP GUARDS IN PLACE and in good working order.
n REMOVE ADJUSTING KEYS AND WRENCHES. Form
habit of checking to see that keys and adjusting wrenches
are removed from tool before turning it on.
n 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.
n 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.
n KEEP CHILDREN AND VISITORS AWAY. All visi-
tors should wear safety glasses and be kept a safe
distance from work area. Do not let visitors contact
tool or extension cord while operating.
n MAKE WORKSHOP CHILDPROOF with padlocks and
master switches, or by removing starter keys.
n DON’T FORCE TOOL. It will do the job better and safer
at the feed rate for which it was designed.
n 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.
n 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 voltage 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.
n 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.
n ALWAYS WEAR SAFETY GLASSES WITH SIDE
SHIELDS. Everyday eyeglasses have only impact-
resistant lenses, they are NOT safety glasses.
n 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.
n DON’T OVERREACH. Ke ep proper footing and
balance at all times.
n MAINTAIN TOOLS WITH CARE. Keep tools sharp
and clean for better and safer performance. Follow instructions for lubricating and changing accessories.
n DISCONNECT TOOLS. When not in use, before
servicing, or when changing attachments, grinding wheels,
etc., all tools should be disconnected.
n AVOID ACCIDENTAL STARTING. Be sure switch is off
when plugging in any tool.
n USE RECOMMENDED ACCESSORIES. Consult the
owner's manual for recommended accessories. The
use of improper accessories may cause risk of injury to
persons.
n NEVER STAND ON TOOL. Serious injury could occur if
the tool is tipped or if the cutting tool is unintentionally
contacted.
n 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.
n PROTECT YOUR LUNGS. Wear a face or dust mask if
the grinding operation is dusty.
n PROTECT YOUR HEARING. Wear hearing protection
during extended periods of operation.
n DO NOT ABUSE CORD. Never yank cord to discon-
nect from receptacle. Keep cord from heat, oil, and sharp
edges.
n 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.
n WHEELS COASTS AFTER BEING TURNED OFF.
n NEVER USE IN AN EXPLOSIVE ATMOSPHERE.
Normal sparking of the motor could ignite fumes.
3
GENERAL SAFETY RULES
n INSPECT TOOL CORDS PERIODICALLY. If dam-
aged, 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.
n INSPECT EXTENSION CORDS PERIODICALLY and
replace if damaged.
n DO NOT USE TOOL IF SWITCH DOES NOT TURN IT
ON AND OFF. Have defective switches replaced by an
authorized service center.
n USE ONLY CORRECT WHEELS. Do not use wheels
with incorrect size holes. Never use wheel washers or
wheel bolts that are defective or incorrect. The maximum wheel capacity of your grinder; BGH616 is 6 in and
BGH827 is 8in.
n NEVER TOUCH WHEEL or other moving parts during
use.
n NEVER START A TOOL WHEN ANY ROTATING COM-
PONENT IS IN CONTACT WITH THE WORKPIECE.
n DO NOT OPERATE A TOOL WHILE UNDER THE
IN FLUE NCE OF D RUGS, ALCOHOL, OR A NY
MEDICATION.
n WHEN SERVICING use only identical replacement parts.
Use of any other parts may create a hazard or cause
product damage.
n 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.
n DOUBLE CHECK ALL SETUPS. Make sure wheel is
tight and not making contact with workpiece before
connecting to power supply.
4
SPECIFIC SAFETY RULES
n 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.
n 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.
n NEVER stand or have any part of your body in line with
the path of the wheel.
n DO NOT USE TOOL IF SWITCH DOES NOT TURN IT
ON AND OFF. Have defective switches replaced by an
authorized service center.
n 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.
n USE ONLY FLANGES furnished with this bench
grinder.
n 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 before resuming operation.
n MAKE SURE THE GRINDER IS SECURELY MOUNTED
as described in the operating instructions before connecting the tool to a power supply.
n DO NOT OVERTIGHTEN THE WHEEL NUT. Exces-
sive tightening can cause the wheel to crack during
operation.
n ALWAYS USE THE GRINDER'S WHEEL GUARDS AND
SAFETY SHIELDS.
n INSPECT GRINDING WHEEL for visible defects. Check
the wheel for fissures and cracks, and test for normal
operation prior to use. Replace cracked wheel immediately.
n 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.
n 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.
n RISK OF INJURY DUE TO ACCIDENTAL STARTING.
Do not use in an area where children may be present.
n NEVER START THE GRINDER when the wheel is in
contact with the workpiece.
n SECURE WORK. Always hold workpiece firmly against
the work rest.
n DO NOT USE THE BENCH GRINDER if the flange nut
or clamp nut is missing or if the spindle shaft is bent.
n FREQUENTLY clean grinding dust from beneath grind-
er.
n 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.
n S AV E THE SE IN STRUC TIONS . Ref e r to them
frequently and use to instruct other users. If you loan
someone this tool, loan them these instructions also.
WARNING:
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals
known to cause cancer, birth defects or other reproductive harm. 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 these exposures varies, 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 particles.
5
SYMBOLS
Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts
A Amperes
Hz Hertz
W Watt
min Minutes
Alternating Current
Direct Current
n
o
.../min
No Load Speed
Class II Construction
Per Minute
Wet Conditions Alert
Voltage
Current
Frequency (cycles per second)
Power
Time
Type of current
Type or a characteristic of current
Rotational speed, at no load
Double-insulated construction
Revolutions, strokes, surface speed, orbits etc., per minute
Do not expose to rain or use in damp locations.
Read The Operator’s Manual
Eye Protection
Safety Alert
No Hands Symbol
No Hands Symbol
No Hands Symbol
No Hands Symbol
Hot Surface
To reduce the risk of injury, user must read and understand
operator’s manual before using this product.
Always wear safety goggles or safety glasses with side shields,
or a full face shield when operating this product.
Precautions that involve your safety.
Failure to keep your hands away from the blade will result in
serious personal injury.
Failure to keep your hands away from the blade will result in
serious personal injury.
Failure to keep your hands away from the blade will result in
serious personal injury.
Failure to keep your hands away from the blade will result in
serious personal injury.
To reduce the risk of injury or damage, avoid contact with
any hot surface.
6
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