Scheppach MBS1200 Original Bedienungsanleitung Seite 17

NOTE: If the band saw becomes jammed or stuck
in the workpiece material during sawing, release
the on/off switch (5) immediately to avoid damage
to the saw band and engine.
5. The net weight of the metal band saw delivers
the most efficient cutting pressure. If the pres-
sure is increased by the operator, the saw band
becomes slower and the service life of the band
is reduced.
6. Swivel the metal band saw back into the initial
position after the sawing process. Make sure
that the metal band saw does not tilt back down
again.
m Attention
Wait until the saw band has come to a complete
standstill before removing the workpiece.
11. Working instructions
The following recommendations are examples for safe
use of the metal band saws.
The following safe working methods are considered to
contribute to safety but may not be appropriate, fully
or extensively applicable for every use. They cannot
cover all possible hazardous conditions and must be
interpreted carefully.
• If the machine is not in operation, e.g. work is com-
plete, slacken the saw band. Attach a correspond-
ing note to the machine for the next user about the
tensioning of the saw band.
• Store unused saw bands together and safely in
a dry place. Check them for faults (e.g. teeth and
cracks) before use. Do not use defective saw bands!
• The correct belt tension contributes significantly to
a straight cut of the saw band. Check and correct
the clamping force after sawing if necessary.
• Wear suitable protective gloves when handling saw
band.
• Mount all protective and safety devices to the ma-
chine before starting work.
• Never clean the saw band or the saw band guide
rollers with a hand-held brush or scraper if the saw
band is running. Resinous saw bands jeopardise
work safety and must be cleaned regularly.
• Wear safety goggles and hearing protection when
working for your own personal protection. Wear a
hair net with long hair. Roll loose sleeves up above
the elbows.
• Make sure that the lighting conditions in the working
and surrounding area of the machine are sufficient.
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• Secure the workpiece against turning when cutting
round pieces of wood.
12. Electrical connection
The electrical motor installed is connected and ready
for operation. The connection complies with the appli-
cable VDE and DIN provisions.
The customer's mains connection as well as the ex-
tension cable used must also comply with these reg-
ulations.
Damaged electrical connection cable
The insulation on electrical connection cables is often
damaged.
This may have the following causes:
• Pressure points, where connection cables are
passed through windows or doors.
• Kinks where the connection cable has been improp-
erly fastened or routed.
• Places where the connection cables have been cut
due to being driven over.
• Insulation damage due to being ripped out of the
wall outlet.
• Cracks due to the insulation ageing.
Such damaged electrical connection cables must not
be used and are life-threatening due to the insulation
damage.
Check the electrical connection cables for damage
regularly. Ensure that the connection cables are dis-
connected from electrical power when checking for
damage.
Electrical connection cables must comply with the ap-
plicable VDE and DIN provisions. Only use connection
cables with designation H05VV-F.
The printing of the type designation on the connection
cable is mandatory.
AC motor
• The mains voltage must be 220-240 V~.
• Extension cables up to 25 m long must have a
cross-section of 1.5 square millimetres.
Connections and repair work on the electrical equip-
ment may only be carried out by electricians.
Please provide the following information in the event
of any enquiries:
• Type of current for the motor
• Data of machine type plate
• Motor data - type plate
13. Cleaning and maintenance
Attention!
Disconnect the mains plug before carrying out any
maintenance work.
Cleaning
• Keep protective devices, air vents and the motor
housing as free of dust and dirt as possible. Rub
the device clean with a clean cloth or blow it off with
compressed air at low pressure. We recommend
that you clean the device directly after every use.
• Clean the device at regular intervals using a damp
cloth and a little soft soap. Do not use any cleaning
products or solvents; they could attack the plastic
parts of the device. Make sure that no water can
penetrate the device interior. Water entering a pow-
er tool will increase the risk of electric shock.
General maintenance tasks
Wipe swarf and dust off the machine from time to time
with a cloth.
Do not oil the motor.
Do not use corrosive cleaning agents for cleaning the
plastic.
Maintenance
Brush inspection (Fig. 22)
If the machine is new, check the carbon brushes after
the first 50 operating hours or if a new brush has been
mounted. After the initial check, check every 10 oper-
ating hours.
If the carbon is worn down to a length of 6 mm, or the
spring or the shunt wire is burnt or damaged, both
brushes must be replaced. If the brushes are found to
be usable after removal, they can be reinstalled.
1. To service the carbon brushes, open both locks
(as shown in figure 22) counterclockwise.
2. Then remove the carbon brushes.
3. Re-insert the carbon brushes in reverse order.
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Replacing the saw band (Fig. 7-11)
Attention!
Disconnect the mains plug before carrying out any
maintenance work.
1. Rotate the tightening lever for the saw band (13)
in a clockwise direction up to the stop, in order
to relieve the saw band tension (see Figure 7).
2. Turn the metal band saw over and place it down
on a workbench or table like this.
3. Loosen the Phillips screws (a) and remove the
saw band guard (9) (left/right) by sliding to the
left or right.
4. Start to remove the saw band at the top part
of the saw band guard (14) and continue right
around the drive unit of the saw band (16). When
removing the saw band, the tension may be re-
lieved and the saw band may jump off. SAW
BANDS ARE SHARP. WEAR PROTECTIVE
GLOVES WHEN HANDLING THEM.
5. Check the guide rollers (18) and remove all
coarse chips that may be in here. Jammed chips
may prevent the guide rollers (18) from turning
and lead to flat spots.
6. Rubber belts (17) are located on the pulleys (13).
The rubber belts should be checked for loose-
ness or damage when changing the saw band.
Wipe chips off the rubber belts (17).
7. Position the saw band (11) such that the teeth
are on the base and are angled in the direction
of the workpiece stop (10), as shown in Figure 9.
8. Slide the saw band (11) into the guide rollers (18),
as shown in Figure 10.
9. Hold the saw band (11) in the guide rollers (18)
and place it around both drive units (16).
10. Tension the saw band (11) using the tightening
lever for the saw band (13).
11. Push the saw band guard (left/right) (9) back on-
to the metal band saw and screw it tight again.
12. Attention! Do not operate the metal band saw
without the saw band guard!
13. Switch the metal band saw on and off a few
times, to ensure that the saw band is sitting cor-
rectly.
m CAUTION:
Maintain physical distance from the saw band
area during this test.
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