Bosch 11388 Consignes De Fonctionnement/Sécurité page 7

BM 1619929485 4/01 4/17/01
TRIGGER "ON-OFF" SWITCH
WITH "LOCK-ON" BUTTON
To turn the tool "ON" squeeze the trigger
switch. To turn the tool "OFF", release the
trigger switch, which is spring loaded and will
return to the "OFF" position automatically.
Your tool is also equipped with "Lock-ON"
button located just above the trigger that
allows continuous operation without holding
the trigger.
TO LOCK SWITCH ON: Squeeze trigger fully,
depress button and release trigger.
TO UNLOCK THE SWITCH: Squeeze trigger
and release it without depressing the "Lock-
ON" button.
If the "Lock-ON" button is
WARNING
!
c o nt i nuo usl y
depressed, the trigger cannot be released.
To increase switch life, do not turn switch on
and off while tool is under load.
INSTALLING ACCESSORIES
Clean the insert shank end of the accessory
to remove any debris, then lightly grease with
a light oil or lubricant.
Pull and hold locking sleeve backward. Insert
accessory into the tool holder through the
dust shield, while twisting and pushing inward
until it sets into place. Release locking sleeve
to lock bit in place. Pull outward on the
accessory to be certain it is locked into the
tool holder (fig. 2).
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.
"VARIO-LOCK"- SELECTOR RING
The vario-lock selector ring can be set in any
one of twelve (30˚ increments) positions.
Choose a position which is best suited for
your operation. To adjust, pull the selector
ring forward and hold firmly, then turn both
the accessory and the selector ring to the
desired position. Release the selector ring
and turn the accessory slightly until it locks
in place.
"TOOL TIPS"
For the best penetration rates in concrete,
run the tool with a steady pressure, but do
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Operating Instructions
NOTE: The high efficiency available from the
hammers can only be obtained if sharp and
undamaged accessories are used. The
"cost" to maintain sharp and undamaged
accessories is more than offset by the "time
saved" in operating the tool with sharp
accessories.
REMOVING ACCESSORIES
WARNING
!
and use proper protective gloves or cloth to
remove.
To remove an accessory, pull and hold
locking sleeve backward and pull bit forward.
All accessories should be wiped clean after
removing.
b e in g
LOCKING SLEEVE
not use excessive force as this will decrease
the efficiency of the tool.
All hammers require a short period of time to
warm up. Depending on the room
temperature, this time may vary from
approximately 15 seconds (90˚F) to 2
minutes (32˚F). A new hammer requires a
break-in period before full performance is
realized. This period may require up to 5
hours of operation.
An electric hammer is likely to be the most
expensive portable tool at the construction
job. The long wear and efficient operation of
the BOSCH hammers will more than justify
the cost for tools of this type. As earlier
pointed out, sharp accessories as well as
clean air vents are necessary for efficient
operation. Establish and follow a set
maintenance program.
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Accessories may be hot after
use. Avoid contact with skin
FIG. 2