Initial Operation - Metabo KHE 3250 Original Instructions Manual

13 Rotation selector switch
* depending on model

6. Initial Operation

Before plugging in the device, check to see
that the rated mains voltage and mains
frequency, as specified on the rating label, match
your power supply.
Always install an RCD with a maximum trip
current of 30 mA upstream.
6.1 Assembly of the additional handle
For safety reasons, always use the additional
handle supplied.
Open the clamping ring by turning the additional
handle (7) anticlockwise. Push the additional
handle onto the collar of the machine. Insert the
depth stop (8). Securely tighten the additional
handle at the angle required for the application.
7. Use
7.1 Depth Stop Setting
Loosen the additional handle (7). Set depth stop (8)
to the desired drilling depth and retighten additional
handle. (7)
7.2 Switching On and Off
To start the machine, press the trigger (10). The
speed can be changed at the trigger.
Release the trigger (10) to switch off.
7.3 Operating mode selection
Press (11) the lock and turn the thumbwheel (12).
Drilling
Hammer drilling
(only set if using (5) SDS chuck)
Setting the chiselling position
With this setting, turn the chisel to the
required position. Then select "Chiselling"
to secure the chisel and prevent it from
twisting.
Chiselling
(only set if using SDS chuck (5))
When a chisel is fitted, only operate the
machine in the chiselling operating
mode .
Avoid levering with the machine when a chisel
is fitted.
7.4 Adjusting the chisel position
- Insert the chisel.
- Turn the switch button (12) to position
- Turn the chisel to the required position.
- Turn the switch button (12) to position
- Turn the chisel until it engages.
When a chisel is fitted, only operate the
machine in the chiselling operating mode
.
7.5 Selecting the direction of rotation
Do not activate the rotation selector switch
(13) unless the motor has completely stopped.
Selecting the direction of rotation:
R = Clockwise (for drilling, hammer drilling, chis-
elling, inserting screws)
L = Counter-clockwise (for extracting screws)
7.6 Changing the chuck (not applicable for
KHE 3250)
When changing chucks, make sure that the
spindle is clean. (6) Apply a light coating of
grease to the spindle. (Special grease: Order No.:
6.31800)
Only attach the Metabo chuck provided.
Removing the chuck:
See page 2, fig. C.
- Turn chuck lock (3) as far as it will go (a) in the
direction indicated by the arrow, and remove
chuck (b).
Replacing the chuck:
See page 2, fig. D.
- Place chuck onto spindle (6) (a).
- Turn chuck lock (3) in the direction indicated by
the arrow (b) until chuck slides fully onto the
spindle. Then release the chuck lock.
- Check to see that the chuck is properly seated.
Note: To prevent the spindle from turning while
chucks are being changed, set the switch button
(12) to chiselling mode.
7.7 Tool change with SDS chuck
Before fitting, clean tool shank and apply
special grease (accessories order no.
6.31800)! Use only SDS-Plus tools.
Inserting tools:
- Turn tool and insert until it engages. The tool is
locked automatically.
Removing the tool:
See page 2, fig. A.
- Pull tool lock (4) backwards in direction indicated
by arrow (a) and remove tool (b).
7.8 Tool change with keyless chuck (not
applicable for KHE 3250)
Use the keyless chuck when non-impact drilling in
metal, wood etc. and driving screws.
Tighten the tool (see page 2, fig. B):
Turn sleeve (2) in the direction of "AUF, RELEASE"
(a). Insert tool as deeply as possible (b) and turn
sleeve in the opposite direction, until any percep-
. tible mechanical resistance is overcome (c).
Caution! The chuck is not yet fully tightened!
.
Keep turning the sleeve (it must "click" when
turning) until it cannot be turned any further - only
now is the tool securely clamped.
ENGLISH en
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