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Operating Instructions

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.

REVERSING SWITCH LEVER

This tool is equipped with a rotating brush reversing system. This results in longer tool life while maximizing power in both forward and reverse directions. The reverse switch can be operated from either the right or left side of the tool.

FOR FORWARD ROTATION: slide switch to arrow marked forward (Fig. 2).

FOR REVERSE ROTATION: slide the slide

switch to arrow marked reverse. NOTE: Tool will not operate in middle position.

FIG. 2

REVERSING

SWITCH

LEVER

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 rotary hammer 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 (Fig. 3).

FIG. 3

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, make sure the accessory has been fully inserted into the tool holder before setting the depth gauge (Fig. 4).

To adjust depth, 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.

DEPTH

GAUGE

FIG. 4

DEPTH

GAUGE

RELEASE

BUTTON

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Bosch Power Tools 11250VSRD manual Operating Instructions, Variable Speed Controlled Trigger Switch
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11250VSRD, 11250VSR specifications

Bosch Power Tools has long been a trusted name in the power tool industry, offering high-quality products designed for both professional and DIY users. Among their impressive lineup, the Bosch 11250VSR and 11250VSRD rotary hammers stand out due to their versatility, performance, and innovative features tailored to meet a broad range of drilling and demolition needs.

The Bosch 11250VSR is a robust rotary hammer drill that provides powerful performance with a 7.5-amp motor, delivering an impressive 0-1,300 RPM and 0-4,800 BPM. This model is known for its ability to drill through concrete, masonry, and other tough materials with ease, making it an excellent choice for construction professionals and home improvement enthusiasts alike. The dual-mode capability allows users to switch between rotary hammer mode for chiseling and hammer-only mode for light demolition work or chasing pipes.

Complementing the 11250VSR, the model 11250VSRD offers similar power and features, with added benefits like a variable speed trigger for enhanced control during delicate applications. Both models come equipped with Bosch’s SDS-plus chuck system, which enables quick and easy bit changes without the need for additional tools. This feature is especially useful for users who need to switch between different drilling tasks rapidly.

In terms of technologies, Bosch integrates advanced vibration control into both models, significantly reducing user fatigue during extended periods of operation. This technology is crucial for professionals who require hours of drilling without compromising comfort or precision. The ergonomic design of these rotary hammers, complete with soft-grip handles, further enhances user comfort, ensuring that the tool can be operated effectively over long durations.

Additionally, the Bosch 11250VSR and 11250VSRD are designed with durability in mind. Metal gear housings and high-quality components ensure that these tools can withstand the rigors of any job site. The built-in clutch also provides added protection by reducing the risk of tool damage during stalls or bind-ups.

Overall, the Bosch 11250VSR and 11250VSRD rotary hammers exemplify Bosch's commitment to innovation, quality, and user-focused design. With their powerful motors, versatile functionalities, and advanced technologies, these tools are ideal for anyone looking to tackle demanding drilling and chipping tasks with efficiency and ease. Whether you're a professional contractor or a DIY enthusiast, investing in a Bosch rotary hammer can significantly enhance your productivity and overall project results.
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