BM 2610034452 03-14_RHH181 3/27/14 12:35 PM Page 10

Operating Instructions

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).

!WARNING To reduce the risk of injury immediately discontinue use

of the tool if the variable speed control ceases to function. Subsequent loss of on/off control of the trigger switch is likely.

FORWARD/REVERSING LEVER &

TRIGGER LOCK

Your tool is equipped with a forward/ reversing lever and trigger lock located above the trigger (Fig. 9). 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.

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. 9

FORWARD/REVERSING LEVER

& TRIGGER LOCK

MODE SELECTOR DIAL

The mode selector dial allows the tool to be set for various applications as listed in the following chart, (Fig. 10).

 

Do not operate the selection

! CAUTION

 

dial until the tool comes to a

 

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

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

Drilling only:

Drilling/hammering:

Vario-lock

Hammering only:

used for drilling

used for drilling

allows for desired

used for light

wood, steel, etc.

concrete

positions of “hammer”

chipping work

FIG. 10

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Bosch Power Tools RHH181BN, RHH181-01 manual Operating Instructions, Variable Speed Controlled Trigger Switch, Drilling only