EINHELL RT-SB 305 U Operating Instructions Manual page 17

Anleitung RT-SB 305 U_SPK1:_
not touch the saw table.
To remove the saw blade guard, proceed in
reverse order.
7.3 Tensioning the blade (Figure 10)
CAUTION! Remove the tension from the blade
if the bandsaw is not going to be used for some
time. Be sure to re-tension the blade before you
start the machine.
Turn the tightening screw (9) for tensioning the
blade (25) in a clockwise direction.
The correct blade tension can be checked by
applying pressure to the side of the blade with
your finger, somewhere in the middle between
the two blade pulleys (7 + 8). You should only
be able to bend the blade (25) very slightly
(approx. 1-2 mm).
CAUTION! The blade may break if the tension
is too high. BEWARE OF INJURY! If the tension
is too low, the powered blade pulley (7) will spin
while the blade does not move.
7.4 Adjusting the blade
CAUTION! The blade must be properly clamped
before the blade can be adjusted.
Undo the fasteners (13) and open the side cover
(12).
Turn the upper blade pulley (8) slowly in a
clockwise direction.
The blade (25) should run centrally on the blade
pulley (8).
If it does not, the angle at which the upper blade
pulley (8) tilts must be adjusted.
If the blade (25) runs more towards the rear of
the blade pulley (8), i.e. towards the machine
housing (24), the setting screw (22) must be
turned in an anticlockwise direction. Then turn
the blade pulley (8) slowly with the other hand to
check the position of the blade (25).
If the blade (25) runs towards the front edge of
the belt pulley (8), the setting screw (22) must
be turned in a clockwise direction.
After adjusting the upper blade pulley (8), check
the position of the blade (25) on the lower blade
pulley (7).
Again, the blade (25) should run in the middle of
the blade pulley (7). If it does not, the angle at
which the upper blade pulley (8) tilts must be
adjusted again.
The blade pulley must be turned several times
until the adjustment of the upper blade pulley (8)
has an effect on the position of the blade on the
lower blade pulley (7).
When adjustment has been completed, close
the side cover (12) again and secure it with the
fasteners (13).
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7.5 Adjusting the blade guide (Fig. 11 -13)
Whenever you change the blade you must reset both
the support bearings (30 + 31) and the guide pins
(28 + 29).
Undo the fasteners (13) and open the left side
cover (12).
7.5.1. Upper support bearing (Fig. 11)
Undo the screw (33).
Move the support bearing (30) so that it is
almost touching the blade (25). There should be
a gap of approx. 0.5 mm.
Re-tighten the screw (33).
7.5.2. Setting the lower support bearing (31)
(Figure 12/13)
Disassemble the saw table (15).
Adjust in the same way that the upper support
bearing was adjusted.
The blade (25) is only supported by the support
bearings (30 + 31) during cutting. When idle the
blade should not touch the ball bearings.
7.5.3. Setting the upper guide bearings (28)
(Figure 11)
Undo the screw (35).
Move the mount (36) of the guide bearings (28)
so that there is a gap of approx. 1 mm between
the front edge of the guide bearings (28) and the
gullet of the blade in front.
Re-tighten the screw (35).
CAUTION! The blade will be rendered useless if
the teeth touch the guide bearings while the
blade is running.
Undo the screws (37)
Move the two guide bearings (28) towards the
blade so that there is a gap of approx. 0.5 mm
between the guide bearings (28) and the blade
(25). (The blade must not jam.)
Re-tighten the screws (37).
Turn the upper blade pulley (8) several times in
a clockwise direction.
Check the setting of the guide bearings (28)
again and re-adjust if necessary.
7.5.4. Setting the lower guide bearings (29)
Figure (12/13)
Disassemble the saw table (15) (see 7.2).
Undo the screw (40)
Move the mount (49) of the guide pins (29) so
that there is a gap of approx. 1 mm between the
front edge of the guide pins (29) and the gullet
of the blade in front.
Re-tighten the screw (40).
CAUTION! The blade will be rendered useless if
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