Setting Upper And Lower Blade Guides; Thrust Bearing, Upper And Lower - Axminster PROFESSIONAL AP2920B Original Instructions Manual

SET UP
Fig 33
• IMPORTANT: This adjustment is sensitive; perform
it in small increments and give the blade time to
react to the changes, as you continue to rotate the
wheel.
• When the blade is tracking properly at the centre
of the wheel, re-tighten the locking knob, (fig 34).
• Turn on the saw and verify proper tracking while
the machine is running.
• If further tracking adjustments are needed,
disconnect from power, and repeat instructions
above.
Fig 34

Setting Upper and Lower Blade Guides

Both top and bottom bearing blade guides will be
set in exactly the same position.
DISCONNECT THE MACHINE FROM THE MAINS
SUPPLY.
• Blade must be tensioned and tracked properly.
• Loosen thumb screw and move guide block by
turning the knob so that the front face of the guide
bearings are approximately 2mm behind the gullet
(curved area at base of tooth) of the blade, tighten
thumb screw, (fig 35).
Fig 35
Gullet
Approx.
2
mm
• Loosen the socket screw and position each guide
bearing so that it is no more than 0.5mm away
from the blade, very close but not quite touching
the blade. A quick way to set this distance is to use a
piece of breakfast cereal packet cardboard between
the blade and bearing, which is approximately
0.3mm thick, (fig 36).
• Tighten socket screw when adjustment is
satisfactory.
Fig 36
Maximum
Clearance
0.5
mm

Thrust Bearing, Upper and Lower

The thrust bearing supports the back edge of the
blade during operation, and is set so that the blade
will contact it only when the blade is under pressure
during a cut.
12
Thumb
Screw
Guide
Bearing
Socket
Screw
Guide
Bearing