23
7. Operation & Sawing Practice
- cont.
Kickback
Kickback can occur as the material passes through the saw blade. When
the timber is past the centre point of the blade the teeth are moving
upwards and towards the user
Fig. 7.10
. If the timber closes onto these
upward moving teeth the timber will kickback.
The way to overcome kickback is to prevent the timber from closing up
onto the blade. To prevent this from happening the fence must be set
correctly, if the auxiliary fence is set too far along it can force the timber
into the blade and cause kickback. By setting the auxiliary fence in front of
the blade centre
Fig. 7.11
. the timber has space to move into as the cut is
made. Kickback is now far less likely occur as the timber isn't being forced
into the upward moving blade.
Sliding Table
The TS250C features a sliding table function which is ideal for cross cutting
small workpieces, accurate repetitive cuts can easily and safely be achieved.
The first aspect which should be understood is the mitre fence,
Fig. 7.12 -
Fig. 7.14
.
In the Event of a Blockage or if the Machine Stalls
If the machine stalls due to the blade becoming trapped in the work piece,
switch it off immediately by pressing the red button marked ‘O’ on
the switch.
If the blade is trapped within the work piece, it may be necessary to prize
the work piece apart slightly using a suitable lever in order to free
the blade.
To re-start the machine, press the green button marked ‘I’ on the switch.
In the Event of a Power Failure
The table saw is fitted with a no volt release (NVR) switch to protect the
user against automatic starting of the machine when power is restored
after a power failure.
In the event of a power failure, first locate and rectify the source of the
failure. If the fault is within the power circuit of the workshop, there may
be an underlying cause (circuit overload etc.) that should be investigated
by a qualified electrician, before attempting to restore the power source.
If a cutting operation was taking place when the power supply was
interrupted, then it may be necessary to free the blade from the work piece
before attempting to re-start the machine.
Once the power is restored, the machine can be re-started by pressing the
green button marked ‘I’ on the switch.
Centre Point of the Blade
Workpiece
Slide Lock Knob
Angle Lock Handle
Positive Angle Stop Screw
Positive Angle Catch
Riving Knife
Blade Centre Point
Auxiliary Fence
-45º Positive
Angle Stop Screw
0º Positive Angle
Stop Screw
+45º Positive Angle
Stop Screw
Positive Angle Catch
Positive Angle Stop Screw
Fig. 7.10
Fig. 7.11
Fig. 7.12
Fig. 7.13
Fig. 7.14
Содержание TS250C
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