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8

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

In the event of a malfunction or breakdown, grounding pro-
vides a path of least resistance for electric current to reduce 
the risk of electric shock. This tool is equipped with an elec-
tric cord having 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.
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

Fig. 1 

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 "WA" 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.

GROUNDING

PIN

120V GROUNDED OUTLET

Summary of Contents for BGH616

Page 1: ...bility 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 OPERATOR S MANUAL BENCH GRINDER BGH616 and BGH827 ...

Page 2: ...tures 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 ...

Page 3: ...elry 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 y...

Page 4: ...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 maxi mum wheel capacity of your grinder BGH616 is 6 in and BGH827 is 8in GENERAL SAFETY RULES 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 WHI...

Page 5: ...t 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 ...

Page 6: ...injury user must read and understand operator s manual before using this product Eye Protection 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 seriou...

Page 7: ...entially hazardous situation which if not avoided may result in minor or moderate injury CAUTION Without Safety Alert Symbol Indicates a situation that may result in property damage WARNING To avoid serious personal injury do not attempt to use this product until you read thoroughly and understand completely the operator s manual Save this operator s manual and review frequently for continuing saf...

Page 8: ...wn ELECTRICAL Fig 1 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 a...

Page 9: ...ons 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 ...

Page 10: ...ght 2 n Work Rest Brackets 2 n Fastening Knobs 2 large 2 medium and 2 small 6 n Washers 6 mm 4 n Washers 5 mm 2 n Lock Washers 6 mm 2 n Wheel Dresser Tool Model BGH827 only 1 n Operator s Manual WARNING The use of attachments or accessories not listed might be hazardous and could cause serious personal injury RIGHT WORK REST LEFT WORK REST GROOVED SAFETY SHIELD KNOB WORK REST KNOB WORK REST BRACKE...

Page 11: ...il you have care fully inspected and satisfactorily operated the tool n If any parts are damaged or missing please call 1 800 525 2579 for assistance WARNING If any parts are missing do not operate this tool until the missing parts are replaced Failure to do so could result in possible serious personal injury WARNING Do not attempt to modify this tool or create accesso ries not recommended for use...

Page 12: ...eases 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 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 n Use 1 4 in bolts washers and n...

Page 13: ...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 n Keep the object in constant motion moving it at an even pace n Never force a tool ag...

Page 14: ...ortant 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 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 ...

Page 15: ...and grinding wheel n To install a new grinding wheel reverse the above procedure NOTE Be sure the grinding wheel and outer flange are properly seated on the spindle shaft MAINTENANCE WARNING When servicing use only identical Ryobi replacement parts Use of any other parts may create a hazard or cause product damage WARNING Always wear safety goggles or safety glasses with side shields during power ...

Page 16: ...using n Remove worklight housing n While gently pushing in bulb turn bulb to left to release n Place new bulb into bulb receptacle and gently push in while turning to the right until bulb is fully seated n Reinstall the worklight housing using the two phillips head screws NOTE To avoid the risk of fire always use a 12v bulb with a wattage no greater than 10w WHEEL DRESSING TOOL MODEL BGH827 Dressi...

Page 17: ...17 NOTES ...

Page 18: ... you call or visit Please call 1 800 525 2579 for your nearest Ryobi Authorized Service Center You can also check our web site at www ryobitools com for a complete list of Authorized Service Centers MODEL NO AND SERIAL NO The model number of this tool will be found on a plate attached to the motor housing Please record the model number and serial number in the space provided below HOW TO ORDER REP...

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