Bosch Power Tools 11222EVS manual Operating Instructions, Trigger ON-OFF Switch

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BM 1619929219 2/03 2/12/03 8:21 AM Page 7

Operating Instructions

TRIGGER "ON-OFF" SWITCH

To turn the tool “ON” squeeze the trigger switch. To turn the tool “OFF”, release the trigger switch, which is spring loaded and will return to the “OFF” position automatically.

To increase switch life, do not turn switch on and off while tool is under load.

VARIABLE SPEED DIAL

Your tool is equipped with a variable speed dial. The impact rate (BPM) and rotating speed (RPM) can be varied according to the type of work being performed by setting the variable speed dial to the selected setting. The chart below will help you to determine which setting to use for your application. However, a pre-test will determine the best speed setting, as the chart is intended only as a guide. Once the proper setting is determined the impact rate and rotating speed is kept constant by means of the "Electronic Feedback Circuitry". The variable speed dial can be adjusted while the motor is running with the tool free from work, allowing the operator to adjust the impact rate and rotating speed according to the actual application.

Chipping (Demolition)

Area of application

Control setting

 

 

Plaster work

1 - 2

Removing tiles

3

Brick work

4

Concrete

5 - 6

 

 

Drilling Holes

 

 

Lower speeds

Higher speeds

 

 

Larger holes

Smaller holes

Accurate starts

Faster penetration

Minimize breakouts

 

when the bit exits

 

the material.

 

 

 

ELECTRONIC FEEDBACK

CIRCUITRY (EFC)

The internal electronic feedback system provides a "soft start", which will reduce the stresses that occur from a high torque start.

The system also helps to keep the pre- selected impact rate and rotating speed virtually constant between no-load and load conditions.

INSTALLING ACCESSORIES

Clean the insert shank end of the accessory to remove any debris, then lightly grease with a light oil or lubricant.

Insert accessory into the tool holder through the dust shield, while twisting and pushing inward until it locks automatically into place. Pull outward on the acessory to be certain it is locked into the tool holder (fig. 2).

NOTE: You may notice some “wobble” or “run out” of the bit when run in a no load condition. This is due to the quick change SDS tool holder assembly. However, once the bit has a load placed upon it, the bit automatically centers itself to produce an accurate hole.

NOTE: The high efficiency available from the rotary hammers can only be obtained if sharp and undamaged accessories are used. The "cost" to maintain sharp and undamaged accessories is more than offset by the "time saved" in operating the tool with sharp accessories.

REMOVING ACCESSORIES

!WARNING Accessories may be hot after use. Avoid contact

with skin and use proper protective gloves or cloth to remove.

To remove an accessory, pull and hold locking sleeve backward and pull bit forward. All accessories should be wiped clean after removing.

FIG. 2

LOCKING SLEEVE

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Contents Operating/Safety Instructions Work Area Power Tool Safety RulesService Rotary Hammer Safety RulesBM 1619929219 2/03 2/12/03 821 AM Symbols Rotary Hammer Functional Description and SpecificationsOperating Instructions Trigger ON-OFF SwitchSelector Dial Accessories MaintenanceBlessures graves Règles de Sécurité GénéralesConservez CES Instructions Réparation Règles de sécurité concernant les marteaux rotatifsLe plomb provenant des peintures à base de plomb Peuvent être chauds après une utilisation prolongéeUne vitesse plus grande SymbolesTours ou mouvement alternatif par Position. Un nombre plus élevé signifieNuméro de modèle Description fonctionnelle et spécificationsType de tige Consignes de fonctionnement Accouplement À Glissement Cadran SélecteurCadran Sélecteur « VARIO-LOCK » Douille DE Retenue SDS À Changement RapideAccessoires MaintenanceConserve Estas Instrucciones Normas de seguridad para herramientas mecánicasProtección de los oídos según lo requieran las condiciones Normas de seguridad para martillos giratoriosBM 1619929219 2/03 2/12/03 821 AM Con aislamiento doble SímbolosDe Ni-Cd Número de modelo Descripción funcional y especificacionesMartillo giratorio Riesgo de arrancar la herramienta accidentalmenteInstrucciones de funcionamiento Embrague Deslizante Dial SelectoraDial Selectora Fijacion Variable Portaherramienta SDS DE Cambio RapidoAccesorios MantenimientoBM 1619929219 2/03 2/12/03 821 AM BM 1619929219 2/03 2/12/03 821 AM Limited Warranty of Bosch Portable and Benchtop Power Tools