BM 2610993468 6-04 6/15/04 3:34 PM Page 7
Operating Instructions
INSTALLING ACCESSORIESaccessories is more than offset by the "time
Clean the insert shank end of the accessory tosaved" in operating the tool with sharp
remove any debris, then lightly grease with aaccessories.
light oil or lubricant
REMOVING ACCESSORIES
Insert accessory into the tool holder throughAccessories may be hot after
the dust shield, while twisting and pushinguse. Avoid contact with skin!WARNING
inward until it locks automatically into place.and use proper protective gloves or cloth to
Pull outward on the accessory to be certain itremove.
fig. 2To remove an accessory, pull and hold locking
sleeve backward and pull bit forward. All
accessories should be wiped clean after
Fig. 3
LOCKING SLEEVE
FIG. 2
DUST SHIELD
NOTE: The high efficiency available from the
rotary hammers can only be obtained if sharpFIG. 3
and undamaged accessories are used. The
"cost" to maintain sharp and undamaged
VARIABLE SPEED CONTROLLED increments) positions. Choose a position
TRIGGER SWITCHwhich is best suited for your operation.
Your tool is equipped with a variable speedDepress release button and turn the selector
trigger switch. The tool can be turned "ON" ordial, to the Ovario-lock� setting. Next, rotate
"OFF" by squeezing or releasing the trigger.the locking sleeve, along with the accessory,
The speed can be adjusted from the minimumto the desired position. Then turn the selector
to maximum nameplate RPM by the pressuredial to the Ohammer only� setting and slightly
you apply to the trigger. Apply more pressureturn the locking sleeve to have it
to increase the speed and release pressure toautomatically lock into a definite position.
decrease speed.
= drilling only:
REVERSING SWITCH LEVER
Models 11224 & 11228 onlyused for... drilling
wood, steel, etc.
The reversing switch lever is located above
the trigger switch and is used to reverse
rotation of the bit.
= drilling/hammering:
The reversing switch should!CAUTIONused for... drilling
only be activated when the
concrete
motor is "OFF" and when bit is at a complete
standstill.
To use tool in "Forward" rotation move lever= hammering only:
to left side of tool, to "Reverse" the rotation ofused for... light
the bit move the lever to the right side of thechipping work
tool.
SELECTOR DIAL= vario-lock:
The selector dial allows the tool to be set forallows for 36 desired
various applications as listed in the chart.positions of Ohammer�
accessories
SELECTOR DIAL - OVARIO-LOCK�
Adjusting the Vario-Lock: The vario-lock can* Hammer only and vario-lock positions
be set in any one of thirty-six (10unot available on model 11226VS.
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ACEC
BOSCH
