Changing The Tool; Dust Extraction (Accessory) - Würth H 26-MLS Instrucciones De Servicio

Removing the quick-change chuck (see figure C)
– Pull back on the quick-change chuck locking ring (6), hold
it in this position and pull the SDS-plus quick-change chuck
(2) or the keyless quick-change chuck (1) out from the
front.
– Once the quick-change chuck is removed, protect it from
dirt.
Inserting the quick-change chuck (see figure D)
– Before insertion, clean the quick-change chuck and lightly
grease the shank.
– Wrap your whole hand around the SDS-plus quick-change
chuck (2) or the keyless quick-change chuck (1). Use a
turning motion to push the quick-change chuck into the drill
chuck holder (16) until you hear it click into place.
– The quick-change chuck is automatically locked. Check that
it is locked by pulling on the quick-change chuck.

Changing the Tool

Pull the plug out of the socket before carrying

out any work on the power tool.
The dust protection cap (4) largely prevents drilling dust from
entering the tool holder during operation. When inserting the
tool, make sure that the dust protection cap (4) does not be-
come damaged.
Replace a damaged dust protection cap immedi-

ately. It is recommended that you have use an
after-sales service for this.
Inserting the SDS-plus application tool
(see figure E)
The SDS-plus drill chuck enables you to change the applica-
tion tool easily and conveniently without needing to use addi-
tional tools.
– Insert the SDS-plus quick-change chuck (2).
– Clean and lightly grease the shank of the application tool.
– Insert the application tool into the tool holder while turning
it until it locks automatically.
– Check that it is locked by pulling on the tool.
As a requirement of the system, the SDS-plus application tool
can move freely. This causes a certain radial run-out at no-
load, which has no effect on the accuracy of the drill hole, as
the drill bit centres itself upon drilling.
Removing the SDS-plus application tool
(see figure F)
– Push the locking sleeve (5) back and remove the applica-
tion tool.
Inserting application tools without SDS-plus (see
figure G)
Note: Application tools that do not have SDS-plus must not
be used for hammer drilling or chiselling. Hammer drilling and
16
chiselling will damage tools without SDS-plus along with their
drill chucks.
– Insert the keyless quick-change chuck (1).
– Hold the retaining ring (18) of the keyless quick-change
chuck firmly in place. Open the tool holder by turning the
front sleeve (17) until the tool can be inserted. Hold the re-
taining ring (18) in place and firmly tighten the front sleeve
(17) by turning it in the direction of the arrow until it aud-
ibly clicks into place.
– Check that it is seated securely by pulling on the tool.
Note: If the tool holder was unscrewed all the way, a scrap-
ing sound may be heard while retightening the tool holder
and it may not fully tighten.
In this case, turn the front sleeve (17) away from the direction
of the arrow by one full turn. This will allow the tool holder to
be fully tightened.
– Turn the impact/mode selector switch (12) to the "drilling"
position.
Removing application tools without SDS-plus (see
figure H)
Hold the retaining ring (18) of the keyless quick-change chuck
firmly in place. Open the tool holder by turning the front
sleeve (17) in the direction of the arrow until the tool can be
removed.

Dust extraction (accessory)

Pull the plug out of the socket before carrying

out any work on the power tool.
Dust/chip extraction
The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
Touching or breathing in this dust can trigger allergic reactions
and/or cause respiratory illnesses in the user or in people in
the near vicinity.
Certain dusts, such as oak or beech dust, are classified as car-
cinogenic, especially in conjunction with wood treatment ad-
ditives (chromate, wood preservative). Materials containing
asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the material
wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in
the country of use must be observed.
Avoid dust accumulation at the workplace. Dust

can easily ignite.
Fitting the dust extraction attachment (see figure I)
To use the dust extraction function, a dust extraction attach-
ment (accessory) is required. During drilling, the dust extrac-
tion attachment springs back so that the head of the dust ex-
traction attachment is always kept close to the surface.