Operating Instructions

BM 1619929562 10/03 10/2/03 3:01 PM Page 8

VARIABLE SPEED CONTROLLED TRIGGER SWITCH

Your tool is equipped with a variable speed trigger switch. The tool speed can be controlled from the minimum to the maximum nameplate RPM by the pressure you apply to the trigger. Apply more pressure to increase the speed and release

pressure to decrease speed. This accurate speed control enables you to drill without center punching. It also permits you to use as a power screwdriver. Bits are available for driving screws as well as running bolts and nuts.

FORWARD/REVERSING LEVER & TRIGGER LOCK

Your tool is equipped with a forward/ reversing lever and trigger lock located above the trigger (Fig. 1). This lever was designed for changing rotation of the chuck, and for locking the trigger in an “OFF” position to help prevent accidental starts and accidental battery discharge. For forward rotation, (with chuck pointed away from you) move the lever to the far left. For

reverse rotation move the lever to the far right. To activate trigger lock move lever to the center off position.

!	CAUTION	Do not change direction of
		rotation until the tool

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

SLIP CLUTCH

The tool has an internal preset clutch. The clutch is set such that sufficient force is transmitted to the bit for most drilling conditions but it will slip when bit binds in the hole or the tool is overloaded. Be aware that due to required clutch setting, you may experience a torque reaction an instant before the clutch slips. This torque reaction will twist the body of the rotohammer in the opposite direction as the bit rotates, i.e.,

counterclockwise. As clutch is slipping, the bit will most likely stop rotating. When the binding force on the bit is removed the clutch automatically resets. If you experience bit binding and clutch begins to slip, immediately turn the tool "OFF" and correct the condition leading to the bit binding.

AUXILIARY HANDLE

The tool must be supported with the auxiliary handle, which can be swiveled 360˚. To reposition and/or swivel the handle, loosen the hand grip, move the handle to the desired position along the barrel and securely retighten the hand grip.

DEPTH GAUGE

Your drilling depth can be pre-set and/or repeated by using the depth gauge.

Setting depth: After the auxiliary handle is installed, push the depth gauge release button, slide the depth gauge to desired depth and release pressure on button to lock the depth gauge in place.

BRAKE

When the trigger is released it activates the electrical brake to stop the chuck quickly. This is especially useful in the repetitive driving and removal of screws.

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11524 specifications

The Bosch Power Tools 11524 is a versatile rotary hammer that combines power, efficiency, and user-friendly features. Designed for professionals and DIY enthusiasts alike, this tool is perfect for drilling and chiseling into a variety of materials, including concrete, brick, and masonry.

One of the standout features of the Bosch 11524 is its powerful motor, which delivers an optimum performance with a 7.5-amp rating. This strength allows the tool to achieve a remarkable impact energy of 2.9 joules, making it particularly effective for tough applications. The rotary hammer operates with a variable speed control, providing users with the flexibility to choose the right speed for their specific task, whether it involves drilling into heavy-duty materials or lighter tasks.

The Bosch 11524 is equipped with an SDS-plus bit system, which facilitates quick and easy bit changes without the need for additional tools. This feature is highly beneficial for users who frequently switch between different drill bits during a task, increasing productivity and efficiency on the job site. Additionally, it allows for a secure grip, ensuring that your bits stay firmly in place during operation.

Another important technology incorporated in the Bosch 11524 is the vibration control system. This innovative feature significantly reduces the amount of vibration felt by the user, allowing for extended work periods without discomfort. The ergonomic design of the handle further enhances user comfort, providing better control and stability during use.

Safety features are also prominent in the Bosch 11524. The tool comes with a sturdy overload clutch, providing protection from tool failure in case of a binding or sudden impact while drilling. This safeguard not only helps in prolonging the lifespan of the machine but also ensures the safety of the user.

The Bosch Power Tools 11524 is built to last, with a robust construction that withstands demanding job site conditions. Its compact design enhances maneuverability, making it easier to operate in tight spaces.

In conclusion, the Bosch Power Tools 11524 rotary hammer is a feature-rich tool designed for efficiency, comfort, and safety. With its powerful motor, innovative technologies, and user-oriented design, it is an excellent addition to any toolbox, ensuring that users can tackle a wide range of projects with confidence and ease.