! WARNING

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Assembly

!WARNING Disconnect battery pack from tool before making

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

INSERTING BITS

Move reverse switch lever to the center “OFF” position. Remove battery pack and rotate the clutch ring to the drill bit symbol

”. Rotate the chuck sleeve counter- clockwise viewing from chuck end, and open chuck to approximate drill bit diameter. Insert a clean bit up to the drill bit flutes for small bits, or as far as it will go for large bits. Close chuck by rotating the chuck sleeve clockwise and securely tighten by hand (Fig. 2).

Do not use the power of the ! WARNING drill while grasping chuck

to loosen or tighten bit. Friction burn or hand injury is possible if attempting to grasp the spinning chuck.

FIG. 2

CHUCK SLEEVE

SCREWDRIVER

BIT

BIT HOLDER

SCREWDRIVER BIT

Operating Instructions

PROTECTION AGAINST DEEP

DISCHARGING

The lithium ion battery is protected against deep discharging by the “Electronic Cell Protection (ECP)”. When the battery is empty, the tool is switched off by means of a protective circuit.

VARIABLE SPEED CONTROLLED

TRIGGER SWITCH

Your tool is equipped with a variable speed trigger switch. The tool can be turned "ON" or "OFF" by squeezing or releasing the trigger. The speed can be adjusted from the minimum to maximum nameplate RPM by the pressure you apply to the trigger. Apply more pressure to increase the speed and release pressure to decrease speed (Fig. 1).

FORWARD/REVERSING

LEVER & TRIGGER LOCK

After tool use, lock trigger in “OFF” position to help prevent

accidental starts and accidental discharge.

Your tool is equipped with a forward/ reversing lever and trigger lock located above the trigger (Fig. 3). This lever was designed for changing rotation of the bit, and for locking the trigger in an “OFF” position.

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.

Do not change direction of ! CAUTION rotation until the tool

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

FIG. 3

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Bosch Power Tools PS31-2AL1A, PS31-2ALPB, PS31BN manual Assembly, Operating Instructions