9.3
Tensioning the band saw blade
(17) (Figs. 1, 2)
ATTENTION
If the band saw is at a standstill for an extended peri-
od, the band saw blade tension must be relieved, i.e.
before switching the band saw on it is necessary to
check the band saw blade tension.
1. To tension the band saw blade (17), turn the clamp-
ing screw (1) clockwise.
Notes:
• The correct tension of the band saw blade can be
determined by pressing the finger laterally against
the band saw blade, roughly centrally between the
two band wheels (2+8). The band saw blade should
only depress slightly (approx. 1-2 mm) here.
• The sufficiently tensioned band saw blade makes a
metallic sound when tapped.
• Relieve the band saw blade tension if it is not in
use for an extended time, so that it does not be-
come overstretched.
ATTENTION
With high tension, the band saw blade may break.
ATTENTION
Danger of injury!
If the tension is too low, the driven band wheel may
spin, resulting in the band saw blade coming to a
standstill.
1. To relieve the band saw blade (17), turn the clamp-
ing screw (1) anti-clockwise.
9.4
Adjust the band saw blade (17)
(Fig. 1, 2)
ATTENTION
Before it is possible to implement the band saw
blade setting, the band saw blade must be tensioned
correctly.
1. Open the housing doors (11) by loosening the door
lock (10). Use the slotted screwdriver (A).
2. Turn the top band wheel (2) clockwise slowly. The
band saw blade (17) must run in the centre on the
running surfaces (3) of the top band wheel (2).
If this is not the case, correct the angle of the top
band wheel (2).
3. To do this, open the wing nuts (13a).
– If the band saw blade (17) runs more towards
the rear edge of the band wheel (2), then the
adjustment handle (13) must be rotated anti-
clockwise.
– If the band saw blade (17) runs more towards
the front edge of the band wheel (2), then the
adjustment handle (13) must be rotated clock-
wise.
4. After setting the top band wheel (2), check the po-
sition of the band saw blade (17) on the bottom
band wheel (8).
5. Turn the bottom band wheel (8) slowly by hand to
check the position of the band saw blade (17).
6. The band saw blade (17) should be positioned in
the centre on the running surfaces (3) of the bottom
band wheel (8). If this is not the case, the angle of
the top band wheel (2) must be adjusted again.
7. To ensure that the adjustment of the top band
wheel (2) influences the position of the band saw
blade (17) on the bottom band wheel (8), turn the
bottom band wheel (8) several times.
8. Retighten the wing nut (13a).
9. After successful adjustment, close the housing
doors (11) again and secure the door locks (10).
Use the slotted screwdriver (A).
9.5
Adjusting the band saw blade
guide (Fig. 1, 7)
Both the support bearing (25+28) and the guide pins
(26+30) must be readjusted before initial commission-
ing and after every band saw blade change.
1. Open the housing doors (11) by loosening the door
lock (10). Use the slotted screwdriver (A).
9.5.1
Adjusting the top guide pins (26)
(Figs. 1, 7a, 7b)
1. Loosen the Allen screws (27a) of the top retainer
(27). Use the 3 mm Allen key (C).
2. Move the top retainer (27) until the front edge of the
guide pins (26) is approx. 1mm behind the tooth
base of the band saw blade (17).
3. Retighten the Allen screws (27a) of the top retainer
(27). Use the 3 mm Allen key (C).
ATTENTION
The band saw blade will be unusable if the teeth
touch the running band saw blade.
4. Loosen the Allen screws (26a) of the top guide pins
(26). Use the 3 mm Allen key (C).
5. Slide the top guide pins (26) in the direction of the
band saw blade (17)!
GB / IE / NI / CY / MT
|
9