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With a soft tool shank, retightening may be required
after a short period of operation.
If the chuck is very securely tightened: Unplug. Hold
drill chuck using an open-end spanner at the flats on
its head, and turn the sleeve (2) vigourously in the
direction of "AUF, RELEASE".
6.9
Metabo VibraTech (MVT)
For reduced vibrations and less stress on the
hands.
Always apply a moderate amount of pressure to the
handle when pushing down the machine and do not
force. Vibrations are reduced most effectively at the
central position (9).
7. Maintenance, cleaning
Ventilation slits:
Clean the ventilation slits on the machine occasion-
ally.
KHE 3251:
- Always keep the spindle (6) clean and apply a
light coating of grease. (Special grease: Order
No.: 6.31800)
- Keyless chuck (1) cleaning:
After prolonged use, hold the chuck vertically, with
the opening facing down, and fully close it and
open it several times. The dust collected falls from
the opening. The application of cleaning spray to
the jaws and jaw openings at regular intervals is
recommended.
f
8. Accessories
Use only genuine Metabo accessories.
Use only accessories which fulfil the requirements
and specifications listed in these operating instruc-
tions.
For a complete range of accessories, see
www.metabo.com or the accessories catalogue.
9. Repairs
Repairs to electrical tools must be carried out by
qualified electricians ONLY!
If you have Metabo electrical tools that require
repairs, please contact your Metabo service centre.
For addresses see www.metabo.com.
You can download spare parts lists from
www.metabo.com.
10. Environmental Protection
Observe national regulations on environmentally
compatible disposal and on the recycling of disused
machines, packaging and accessories.
f
11. Technical Specifications
Explanation of details on page 3. Subject to
changes serving technical progress.
P
=
Rated input
1
P
=
Power output
2
I
=
Current at 120 V
120 V
n
=
No-load speed
1
n
=
Load speed
2
ø
=
Maximum drill diameter
max
s
=
Maximum impact rate
max
W
=
Single impact force
S
=
Impact performance
b
=
Drill chuck chucking capacity
m
=
Weight without mains cable
D
=
Collar diameter
The technical specifications quoted are subject to
tolerances (in compliance with the relevant valid
standards).
Wear ear protectors!
ENGLISH en
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