20
6. Bandsaw Blade Set Up
- cont.
Fig.6.5
GUIDE ADJUSTMENT
A
Fig.6.6
REAR BLADE
SUPPORT ROLLER
B
Fig.6.9
Fig.6.10
LOCKING NUT
ROLLER GUIDES
A
B
C
6.3 Adjusting the Upper Guides
First check that all of the roller guides are moving freely. To adjust the
upper blade guides, first position the guide assembly relative to the
blade, by slackening off the hex screw
(Fig.6.5, A)
and moving the guide
carrier until the roller guides are just behind the gullets of the blade
(See
Fig.6.7).
Next set the roller guides as near as possible to the blade without
actually touching. This is done by unlocking the locking nut on each side of
the guide adjustment
(See Fig.6.5)
. Do not let the roller guides actually
touch the blade as this will adversely affect the life of the blade. Finally
adjust the rear blade support roller to be just clear of the back of the blade
(See Fig.6.7)
. Do this by unlocking the hex socket screw
(Fig.6.6B).
When
the correct adjustment is reached, lock the blade support roller in position
with a hex key
(Fig.6.6B)
.
6.4 Adjusting Lower Guides
To adjust the lower blade guides, first slacken off the hex socket screw
(See Fig.6.9A)
, move the guide carrier casting so the guides are just
behind the gullets of the blade
.
Next set the roller guides as near as
possible to the blade without actually touching. This is done by releasing
the hex head socket screw
(See Fig.6.9B)
on each side of the blade.
Finally adjust the rear thrust bearing to be just clear of the back of the
blade
(See Fig.6.10)
. To do this first unlock the Hex socket screw
(See
Fig.6.9C)
then using the adjustment knob at the rear, position the thrust
bearing
Fig.6.10
.
6.5 Adjusting the cutting height
Once the blade is set, the cutting height must be adjusted so there
is maximum guarding for the blade and so that the blade guides are
providing optimum support to the blade.
To adjust the cutting height loosen the rise and fall lock knob and turn the
rise and fall handwheel to raise or lower the guide post/upper blade guide
assembly to the desired height
Fig.6.12
. Note: The upper blade guide
should provide approximately 5 mm clearance above the workpiece. After
the desired position has been set tighten the rise and fall lock knob.
Always re-check the upper guides once the desired height is set for any
slight adjustment required.
CAUTION!
Before carrying out any adjustments or maintenance ensure
that the machine is isolated and disconnected from the
electricity supply.
Fig.6.7
Fig.6.8
ROLLER GUIDE
REAR BLADE
SUPPORT ROLLER
BLADE GULLET
Fig.6.12
RISE & FALL HANDWHEEL
RISE & FALL LOCK KNOB
Fig.6.11
GUIDE CARRIER
C
ADJUSTMENT KNOB
i
Kg
i
Kg
Summary of Contents for BS300E Premium
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