EFA SB 288 E Betriebs- Und Wartungsanleitung Seite 20

4.1.1 Dismantling saw band
Open the two covers (B) by pulling the tab (C) (the
covers are equipped with magnet snap
mechanisms). Release the saw band by turning the
torque wrench (D) anticlockwise. The saw band is
now released.
Lift the guide mechanism with the lever (E) and slide
the band from the guides and across the wheels
(see chapter 4.2 "Saw band guides" (page 6).
SB 288 E = Torque wrench (included as separate
tool with machine)
(product number 001 963 363)
Direction of band run
Figure 4: Changing saw band
The functional diagram in fig. 4 is not identical with
that of model SB288E.
4.1.2 Changing saw band
Place the saw band tightly across the wheels
with the teeth against the housing. Ensure that
the teeth are facing in motor direction. The set
of the teeth must be positioned above the cut-
out in the diameter (free rotation, see figure 6).
Pre-tighten the saw band lightly, using the
torque wrench (D).
Slide the guide mechanism upwards by
operating the lever (E). Move the saw band by
hand into a vertical position and insert it into the
guide mechanism.
Release the lever (E) (automatic working
position).
Tighten the saw band with the torque wrench
(D) until the torque wrench engages (clicking
sound).
Let the machine run for a short period of time.
The saw band aligns itself in the correct position
in the guide wheels.
Schmid & Wezel
D75433 Maulbronn,
Lever E (fig. 64)
top = working position
bottom = guide
mechanism released for
band change
Saw band
Page / Seite
6 / 27
Retighten the saw band.
The tips of the saw band teeth are hardened
and cannot be resharpened.
4.2 Saw band guides
The splitting saws are equipped with two band
guide mechanisms. They are important devices of
the splitting saw and must be cleaned and inspected
daily. In the event of wear, replace the guides.
The guides of the splitting saw feature the
following components (see figure 5):
Hard metal plate
Counteracts the sawing pressure
2 hard metal rods
Guide and deflect the saw band
Compression spring
Counteracts sawing pressure
The fibre guide (003 009 634) is not shown in
the diagram.
Figure 5: Saw band guide mechanism
If there are grooves caused by wear on the hard
metal plate (a), it can still be used, as it has 4
sides. Simply turn the plate to prevent cracks
from the pressure applied by the saw band.
The hard metal rods (b) cannot be readjusted.
They can however be turned so that an unworn
section is exposed to the saw band. If they are
completely worn, replace them to prevent
cracks and ensure proper and safe cutting
operation.
The saw band guide mechanism must be
flexible.
Regularly inspect the fibre guide (003 009 634)
(see figure 7) for damage and replace it, if
necessary.
The distance between the front side of the drive
and guide wheel to the saw band must be 1.5 to
2.5 mm in order to ensure free movement of the
straight-set teeth (see figure 6).
Grooves in hard metal
Gap (default width 0.6 mm)
Turn rods (b) if there are
grooves
Version / Ausführung
08.2005