Always connect the air inlet hose 5 first to the
tool, then to the maintenance unit.
Slip the air inlet hose 5 over the coupling nipple 21 and
attach the air inlet hose by firmly tightening the hose
clamp 6.
Screw a quick hose connector 22 into the air outlet of
the maintenance unit 23. Quick hose connectors
make possible a quick connection and, when uncou-
pled, they shut off the air supply automatically.
Take care that you do not start the tool accidentally
when you insert the coupling nipple 21 into the coupler
22.
Mounting the Drill Chuck
Hold the drill spindle 12 in place on the wrench flats 11
using a suitable open end wrench and screw the key-
type chuck 16 or the keyless chuck 20 onto the drill
spindle 12 (see Fig.
E
The drill chuck must be tightened with a torque of
approx. 30–35 Nm.
Take care that the drill chuck is firmly seated on the
drill spindle.
Bit Replacement
Key-Type Chuck
Attaching the Tool bit
Rotate the sleeve 15 of the key-type chuck 16 coun-
terclockwise until the chuck jaws 17 are open wide
enough. Insert the tool bit 13 into the center of the
chuck jaws 17 and clamp it by using the chuck key 14
equally in all three holes.
Removing the Tool bit
Caution! Tool bits can become hot when
the tool is operated for a longer time.
Use protective gloves.
Rotate the sleeve 15 of the key-type chuck 16 coun-
terclockwise using the chuck key 14 until the tool bit
13 can be removed from the chuck jaws 17.
3 609 929 935 • (03.10) T
).
5 OPERATING INSTRUCTIONS
Replacing the Key-type Chuck
Danger of injury! Remove the tool bit in
all cases before dismounting the drill
chuck.
Caution! Tool bits can become hot when
the tool is operated for a longer time.
Use protective gloves.
Hold the drill spindle 12 in place on the wrench flats 11
using a suitable open end wrench. Insert the chuck
key 14 into one of the three holes in the key-type
chuck 16 and use this lever to loosen the chuck like a
screw by turning it counterclockwise. You can loosen
a chuck that is stuck by using a hex wrench in the
chuck jaws 17 to apply a counterforce.
Replacing the Keyless Chuck
Danger of injury! Remove the tool bit in
all cases before dismounting the drill
chuck.
Caution! Tool bits can become hot when
the tool is operated for a longer time.
Use protective gloves.
Lay the tool on a fixed support (e.g., workbench). Hold
the drill spindle 12 in place on the wrench flats 11 us-
ing a suitable open end wrench and loosen the keyless
chuck 20 from the drill spindle by turning it counter-
clockwise. You can loosen a chuck that is stuck by
using a hex wrench in the chuck jaws 17 to apply a
counterforce.
Bit Replacement
Keyless Chuck
Attaching the Tool bit
Hold the inner sleeve 19 of the keyless chuck 20 in
place and open the chuck jaws 17 by rotating the out-
er sleeve 18 until the tool bit 13 can be inserted. To
clamp the tool bit 13, hold the inner sleeve 19 in place
and apply force to rotate the outer sleeve 18.
Removing the Tool bit
Caution! Tool bits can become hot when
the tool is operated for a longer time.
Use protective gloves.
Hold the inner sleeve 19 of the keyless chuck 20 in
place and open the chuck jaws 17 by rotating the out-
er sleeve 18 until the tool bit 13 can be removed.
English–7