Scheppach BASA4 Originalbetriebsanleitung Seite 37

6. Fit a new saw band. Check the correct position:
The teeth must point to the front of the saw (where
the doors are).
7. Align the saw band to the centre of the blade wheel
rubber.
8. Tighten the adjusting knob (9) until the band no
longer slips from the wheels.
– Tension the saw band with the adjusting knob (9)
– Align the saw band with the adjusting knob (10).
Tighten the locking nut (25).
– Align the blade guides (4) (8.6)
9. Close both housing doors.
10. Then:
– Do a test run for at least 1 minute.
– Stop the saw, unplug the mains plug and check
the settings.
8.5.1 Tensioning the band saw blade, Fig. 12
Danger: Too much tension can result in a band break-
age. Not enough tension can result in the driven band
wheel slipping and the saw band stopping.
1. Set the top saw band guide (4) up to the top po-
sition.
2. Check the tension by pressing your fingers halfway
between the table and top band guide against the
side of the band. The band should yield no more
than 3 to 5 mm.
3. Correct the tension if necessary:
– Turning the adjusting knob (9) anti-clockwise
increases the saw band tension.
– Turning the adjusting knob (9) clockwise reduc-
es the band tension.
Attention! Excessively high tension leads to prema-
ture breakage!
On completion of work, always relieve tension on the
saw blade! To do this, move lever 15 to "–".
8.5.2 Aligning the saw band, Fig. 13
If the saw band does not run in the centre of the rubber
wheels, the track must be corrected by adjusting the
angle of the top band wheel:
1. Loosen the locking nut (25).
2. Turn the adjusting knob (10):
– Turn the adjusting knob (10) clockwise if the
saw band runs against the front of the saw.
– Turn the adjusting knob (10) anti-clockwise if
the saw band runs against the back of the saw.
3. Tighten the locking nut (25).
8.6 Adjusting the saw band guide, Fig. 12
You can adjust the top saw blade guide with the help of
the adjustment knob on the saw blade guard (13) from
0-205 mm in terms of workpiece height. The smallest
possible distance to the workpiece ensures optimal
belt guidance and safe working.
8.6.1 Counterpressure bearings, Fig. 15
The counterpressure bearings (26) absorb the feeding
pressure of the workpiece.
Adjust the top and bottom counter pressure bearing so
that it lightly touches the back of the saw band.
8.6.2 Guide rollers, Fig. 15
Adjust the top and bottom guide rollers (27) to the re-
spective saw band width. The front edges of the guide
rollers must not extend further than the tooth base of the
saw band. If the guide rollers gently touch the saw band,
counter the seating of the rollers using the knurled screw.
The saw band must not jam!
8.7 Replacing the table inlay, Fig. 9
The table inlay (14) must be replaced if the slot is en-
larged or damaged.
1. Remove the table inlay from the saw table by push-
ing from below.
2. Insert the new table inlay.
Make sure that the top surface of the table inlay is at
the same height as the saw table.
8.8 Switching on/off, Fig. 1
• It is possible to switch the saw on by pressing the
green "I" button (8). Before starting sawing, wait un-
til the saw blade has reached its maximum speed.
• In order to switch the saw off again, it is necessary
to press the red "0" button (8).
• The band saw is equipped with an undervoltage
switch. With a power failure, the band saw must be
switched back on again.
8.9 Speed adjustment, Fig. 1+14+14.1+14.2
Pull out the mains plug!
• Open the housing door (1)
• Open the quick clamp lever for belt tension (16) Fig.
14.1 at the back of the machine and slide the motor
(11) to the left. Now gently close the quick clamp le-
ver again. Tension on the drive belt is now relieved.
• Move belt into the desired position (Fig. 14.2)
• Open the quick clamp lever again for belt tension
(16) and press the motor gently to the right to ten-
sion the belt. Close the quick clamp lever again.
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