Bosch Power Tools 11253VSR Selector Dial VARIO-LOCK, Drilling only, Installing Accessories

BM 2610958557 07-08 6/30/08 2:24 PM Page 8

SELECTOR DIAL

The selector dial allows the tool to be set for various drilling/hammer drilling applications. Depress release button and turn selector dial right or left depending on the below applications.

When using demolition or chipping bits such as bull points, chisels, spades, gouges, etc. the “Hammer Only” mode must be selected.

! CAUTION	Do not operate the selection
	dial until the tool come to a

complete stop. Shifting during rotation of the chuck can cause damage to the tool.

SELECTOR DIAL - “VARIO-LOCK”

Adjusting the Vario-Lock: The vario-lock can be set in any one of thirty-six (10˚ increments) positions. Choose a position which is best suited for your operation.

Depress release button and turn the selector dial, to the “vario-lock” setting. Next, rotate the locking sleeve, along with the accessory, to the desired position. Then turn the selector dial to the “hammer only” setting and slightly turn the locking sleeve to have it automatically lock into a definite position.

Drilling only:	Drilling/hammering:	Vario-lock	Hammering only:
used for drilling	used for drilling	allows for 36 desired	used for light
wood, steel, etc.	concrete	positions of “hammer”	chipping work

FIG. 4

INSTALLING ACCESSORIES

!WARNING Disconnect the plug from the power source before making

any assembly, adjustments or changing accessories. Such preventive safety measures reduce the risk of starting the tool accidentally.

The 11253VSR and 11255VSR Rotary Hammers utilize “SDS-plus” drill bits. The “SDS-plus” system efficiently transfers drilling torque and maximizes the energy delivered per hammer blow.

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 accessory to be certain it is locked into the tool holder (Fig. 5).

FIG. 5

DUST SHIELD

REMOVING ACCESSORIES

! WARNING	When removing the bit from	FIG. 6
	the tool avoid contact with

skin and use proper protective gloves when grasping the bit or accessory. Accessories may be hot after prolonged use.

To remove an accessory, pull the locking sleeve backwards (towards the rear of tool), while pulling the accessory outward. All accessories should be wiped clean after removing (Fig. 6).

LOCKING

SLEEVE

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