13
Setting up the Saw
WARNING! DO NOT CONNECT THE SAW TO THE MAINS
AT THIS STAGE!
Setting the Blade Tracking
Make sure that the top and bottom blade guides are
clear of the blade and that the blade is positioned
approximately in the middle of the wheel.
Apply some tension to the blade by turning the
tensioning knob (See page 11) clockwise. Rotate the
top wheel by hand and check whether the blade stays
centrally on the rubber tyres. If the blade moves across
the wheel then adjust the tracking control knob (See
page 11) by a small amount and re-check the tracking.
Continue this adjustment until the blade remains in
the centre of the wheels and then lock the tracking
adjustment knob.
Setting the Blade Tension
Tension is applied to the blade through a compression
spring and lever-controlled cam rather than directly via
the adjusting screw. This serves the dual purposes of
accurately controlling the amount of tension applied
to the blade and providing a convenient means of
taking the tension off the blade when the saw is not in
use.To tension the blade, rotate the tension lever (See
page 11) fully downwards and check the position of
the red indicator in the window above the tension
lever; this should align with the blade width marking
corresponding to the width of the blade being used. If
adjustment is needed, release the blade tension lever,
rotate the adjustment knob (See page 11) on the top
of the body, re-apply the blade tension and check the
alignment of the indicator. Continue until the indicator
lines up with correct blade width mark.
Following this procedure will ensure that the correct
blade tension is always applied too little tension will
result in poor tracking and inaccurate cuts and too
much could stretch the blade and damage the rubber
tyres.
Setting the Drive Belt Tension
The drive belt tension is adjusted by slackening off the
top motor securing bolt (See page 14), rotating the
motor in the appropriate direction and re-tightening
both the securing bolts.
Setting the Blade Guides
The blade is supported both above and below the
table with three ball bearings, one to control the
rearward movement and two to provide lateral
support. All six bearings are independently adjustable
in order to provide the best possible support for the
blade.
Adjustment is carried out by slackening off the
appropriate locking screws (See page 12), adjusting
the bearings with the screws and then re-tightening
the locking screws.
The back support bearings should be positioned to
give approximately 1mm clearance between the back
edge of the blade and the face of the bearing.The side
bearing assembly should be positioned so that the
front edges of the bearings are just behind the tooth
gullets; this will ensure good support for the blade
without undue wear of the blade or the bearings.
The side bearings are factory set to give the correct
clearance between the bearings and the blade; if there
is a need to alter this clearance then the clamping
screw (See page 12) can be slackened off and the
bearing spacing adjusted with the adjusting screws to
give approximately 0.5mm clearance on both sides of
the blade.
Setting the Table Square
There is a setscrew and locknut on the underside of
the table which makes contact with the top of the
bandsaw body and enables the table to return exactly
to the horizontal position after having been tilted.The
table can be set to the horizontal by using a try square
between the surface of the table and the blade.