Bosch Power Tools 11250VSRD manual Operating Instructions, Release, Reversing Switch Lever

BM 1619P02168 12-07 12/5/07 3:52 PM Page 11

(optional accessory) must be used for dust extraction, not the standard dust canister (Fig. 12). If required, remove the dust cap for small drill bits.

To insert the dust cap for core bits, push it from above into the dust extraction system until you hear it click into place (Fig. 12).

To remove of the dust cap for core bits, push the release latch outward and pull off the dust cap.

FIG. 12

DUST CAP FOR CORE BITS 1-1/2" MAXIMUM CAPACITY (optional accessory)

				rer
		hammea
	chh		m	m
ssc
Bo

	VACUUM ADAPTER
RELEASE
LATCH	DUST CANISTER
	(optional accessory)

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 (Fig. 1).

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 re- verse 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. 13).

FOR REVERSE ROTATION: slide the slide

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

FIG. 13

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.

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