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Caution! The chuck is not yet fully tightened! Keep
turning (there is a "clicking" sound while turning),
until further turning is no longer possible - only now
is the tool securely tightened.
With a soft tool shank, retightening may be required
after a short period of operation.
Opening the drill chuck:
Grip the retaining ring (a) firmly and, with the other
hand, turn the sleeve (b) towards "AUF, RELEASE".
Note: The ratchet sound which can possibly be
heard after opening the drill chuck, is functional and
is switched off by a reverse rotation of the sleeve.
If the chuck is extremely tightened:
Unplug. Hold drill chuck with an open end spanner
at the flats on its head and turn the sleeve (b) hard
towards "AUF, RELEASE".
7. Tips and Tricks
Only moderate pressure is required for hammer
drilling and chiselling. Exerting a high force does not
increase performance.
When drilling deep holes, remove the drill bit
periodically from the hole to release the stone dust.
Drill tiles and other brittle materials without impact.
8. Maintenance
Keyless chuck cleaning:
After prolonged use hold the chuck vertically, with
the opening down, and fully open and close 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.
The vent slots of the machine should be cleaned
from time to time.
9. Trouble Shooting
If the trigger (11) can not be depressed, check to
see that the direction of rotation selector switch (9)
is fully set to the R or L position.
Electronic signal indicator (8) with VTC
electronics (KHE-D 28)
Flashing - carbon brushes worn
The carbon brushes are almost completely worn. If
the brushes are completely worn, the machine
switches off automatically. Have the brushes
replaced by an authorized service centre.
f
10. 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.
11. 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.
12. Environmetal Protection
Observe national regulations on environmentally
compatible disposal and on the recycling of disused
machines, packaging and accessories.
13. Technical Specifications
Explanatory notes on the information on page 3.
Changes due to technological progress reserved.
P
= rated input
1
P
= rated output
2
n
= no-load speed
1
n
= load speed
2
ø max = max. solid drill diameter
s max = max. impact rate
W
= single impact strength
m
= weight
D
= spindle collar diameter
b
= drill chuck chucking capacity
The technical specifications quoted are subject to
tolerances (in compliance with the relevant valid
standards).
Wear ear protectors!
ENGLISH en
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