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OPERATOR'S MANUAL
4-1/2 in. (115 mm) Angle Grinder
Model AG450 / 

Double Insulated

972000-912

RYOBI TECHNOLOGIES, INC.

1428 Pearman Dairy Road

Anderson SC 29625

Post Office Box 1207

Anderson SC 29622

Phone 1-800-525-2579

www.ryobitools.com

EXTENSION CORD CAUTION

When using a power tool at a considerable distance from a power
source, be sure to use an extension cord that has the capacity to
handle the current the tool will draw. An undersized cord will cause
a drop in line voltage, resulting in overheating and loss of power.
Use the chart to determine the minimum wire size required in an
extension cord. Only round jacketed cords should be used.

When working with a 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 any extension cord, inspect it for loose or exposed
wires and cut or worn insulation.

**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

      CAUTION: Keep the extension cord clear of the working
area. Position the cord so that it will not get caught on workpiece,
tools, or other obstructions while you are working with a power
tool.

**Used on 12 gauge - 20 amp circuit.

• SERVICE

Now that you have purchased your tool, should a need ever exist for repair parts or service,
simply contact your nearest Ryobi Authorized Service Center. Be sure to provide all
pertinent facts when 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.

The model number of your 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.

MODEL NUMBER

    AG450

SERIAL NUMBER

Summary of Contents for AG450

Page 1: ...lly read through this entire operator s manual before using your new angle grinder Pay close attention to the Rules for Safe Operation Warnings and Cautions If you use your grinder properly and only f...

Page 2: ...ENTS a a a a a a a a AG450 ANGLE GRINDER TYPICAL APPLICATION WARNING Always use the guard that accompanied the grinder Comply with mounting and use instructions and warnings found in the manual for th...

Page 3: ...ower tool is double insulated This means you are separated from the tool s electrical system by two complete sets of electrical insulation This extra layer of insulation is intended to protect the use...

Page 4: ...misalignment or binding of moving parts breakage of parts and any other condi tion that may affect the tool s operation If dam aged have the tool serviced before using Many accidents are caused by po...

Page 5: ...ting Inspect for and remove all foreign objects from workpiece before grinding Following this rule will reduce the risk of serious personal injury Use only accessories that are recommended by the manu...

Page 6: ...s Double Insulated Construction tools Revolutions strokes surface speed orbits etc per minute Indicates danger warning or caution It means attention Your safety is involved Important Some of the follo...

Page 7: ...power supply that is 120 volts 60Hz 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...

Page 8: ...cures the spindle so that only one wrench is needed to change the grinding wheel Switch with Lock on Feature Your grinder has a conveniently located switch It also has a lock on feature that allows th...

Page 9: ...the same direction as in prior use Failure to heed this warning can result in bristle breaking and extreme vibration of the wire wheel brush that could result in serious personal injury WARNING Failu...

Page 10: ...nd loose particles thrown from the grinding wheel would be directed toward the operator Always place the guard in the correct location as shown in figures 4 and 5 WARNING Always wear safety glasses an...

Page 11: ...ury WARNING Never use your grinder without wearing eye protection Following this rule will reduce the risk of serious personal injury Fig 7 WARNING Inspect wire wheel brush before each use Never use o...

Page 12: ...the clamp screw until the guard can be removed from the bearing cap Place the new guard on the shoulder of the bearing cap See Figure 9 Note If the new guard will not fit loosen the clamp screw until...

Page 13: ...ve dirt carbon dust etc WARNING Do not at any time let brake fluids gasoline petroleum based products penetrating oils etc come in contact with plastic parts They contain chemicals that can damage wea...

Page 14: ...r exposed wires and cut or worn insulation 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 1...

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