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SYMBOLS

SERVICE

Servicing requires extreme care and knowledge and should 
be  performed  only  by  a  qualified  service  technician.  For 
service we suggest you return the product to your nearest 

AUTHORIZED SERVICE CENTER

 for repair. When servic-

ing, use only identical replacement parts.

WARNING:

SAVE THESE INSTRUCTIONS

The following signal words and meanings are intended to explain the levels of risk associated with this product. 

SYMBOL 

SIGNAL 

MEANING

DANGER: 

 

Indicates an imminently hazardous situation, which, if not avoided, will 
result in death or serious injury.

WARNING:

 

Indicates a potentially hazardous situation, which, if not avoided, could 
result in death or serious injury.

CAUTION:

 

Indicates  a  potentially  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 safe opera-
tion and instructing others who may use this product.

The operation of any power tool can result in foreign objects being thrown into your eyes, which can 
result in severe eye damage. Before beginning power tool operation, always wear safety goggles or 
safety glasses with side shields, or a full face shield when needed. We recommend Wide Vision Safety 
Mask for use over eyeglasses or standard safety glasses with side shields. Always use eye protection 
which is marked to comply with ANSI Z87.1.

Содержание D551H

Страница 1: ...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 ma...

Страница 2: ...Assembly 10 n Operation 10 14 n Maintenance 14 15 n Parts Ordering Service 16 TABLE OF CONTENTS INTRODUCTION This tool has many features for making its use more pleasant and enjoyable Safety performan...

Страница 3: ...tool n Keep the tool and its handle dry clean and free from oil and grease Always use a clean cloth when clean ing Never use brake fluids gasoline petroleum based products or any strong solvents to cl...

Страница 4: ...ed 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 a...

Страница 5: ...njury 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...

Страница 6: ...ially 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 seri...

Страница 7: ...ion 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 DOUBLE INSULATION D...

Страница 8: ...2 in Hammer Speed Low 0 16 000 BPM High 0 48 000 BPM No Load Speed Low 0 1 000 min High 0 3 000 min Input 120 V 60 Hz AC only 5 5 Amps Net Weight 5 75 lbs Blows Per Minute AUXILIARY HANDLE ASSEMBLY D...

Страница 9: ...perating in different positions and at different angles GRIPZONE OVERMOLD TECHNOLOGY The hammer drill features Gripzone overmold technology for improved comfort with a positive grip LOCK ON BUTTON The...

Страница 10: ...ve care fully inspected and satisfactorily operated the tool n If any parts are damaged or missing please call 1 800 525 2579 for assistance PACKING LIST Hammer Drill Carrying Case Operator s Manual W...

Страница 11: ...igure 3 This could cause the drill bit to be thrown from the drill resulting in possible serious injury or damage to the chuck n Insert the drill bit completely into the chuck n Tighten the chuck jaws...

Страница 12: ...See Figure 7 CAUTION Never change gears while the tool is running Failure to obey this caution could result in serious damage to the drill The hammer drill has a two speed knob that provides a high s...

Страница 13: ...mmer ing Failure to heed this caution may result in damage to the drill LOCKING ON See Figure 10 The lock on feature allows you to lock the drill on when you operate it continuously for extended perio...

Страница 14: ...Plug the hammer drill into a power supply n Hold the drill firmly and place the bit at the point to be drilled n Depress the switch trigger to start the drill n Move the drill bit into the workpiece...

Страница 15: ...he hex key sharply with a mallet in a clockwise direction n Open the chuck jaws and remove the hex key n Remove the chuck screw by turning it in a clockwise direction with a screwdriver NOTE The screw...

Страница 16: ...l 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...

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