Record Power BS250 - Bandsaw Blade Set Up; Adjusting Blade Guides and Cutting Height

6.1 Adjusting the Upper Guides
First check that all of the roller guides are moving freely. To
adjust the upper blade guides, position the guide assembly
relative to the blade by slackening off the lock nut
(Fig.6.1) and
moving the guide carrier until the roller guides are just behind
the gullets of the blade
Fig.6.3. Now adjust the whole guide
assembly so the blade runs centrally on the thrust bearing
Fig.6.5. This is done by slackening off the two grub screws
on the back of the guide carrier
Fig.6.2 and positioning the
assembly as desired
Fig.6.5. Next set the roller guides as near
as possible to the blade without actually touching
Fig.6.6. This
is done by loosening the Allen bolts in each guide
Fig.6.1 and
positioning the guides. When you are satisfied that the guides
are positioned correctly tighten the Allen bolt taking care not to
disturb the position of the guides
. Finally, set the thrust bearing
as near to the back of the blade without actually touching
Fig.6.4
6.2 Adjusting Lower Guides
To adjust the lower blade guides, first slacken off the lock
nut Fig.6.8, move the guide carrier casting so the guides
are just behind the gullets of the blade
Fig.6.6. Next set the
roller guides as near as possible to the blade without actually
touching Fig.6.9. This is done by releasing the Allen bolts See
Fig.6.8 on each side of the blade. Finally adjust the thrust
bearing to be just clear of the back of the blade
Fig.6.7.
6.3 Adjusting the cutting height
When the machine is in operation the cutting height must be
adjusted so there is maximum guarding for the blade. Also so
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.6.11.
Note: The upper blade guide should provide approximately
5mm clearance above the workpiece. After the desired position
has been set tighten the rise and fall lock knob.
16 17
6. Bandsaw Blade Set Up
Fig.6.1
Fig.6.2
THRUST BEARING
Fig.6.7
CAUTION!
Before carrying out any adjustments or maintenance
ensure that the machine is isolated and disconnected
from the electricity supply.
LOCK NUT
Fig.6.3 Fig.6.4
ROLLER GUIDE THRUST BEARING
BLADE GULLET
Fig.6.8
RISE & FALL KNOB
RISE & FALL LOCK
GUIDE CARRIER
Fig.6.6
ROLLER GUIDES
Fig.6.5
BLADE
THRUST
BEARING
TWO GRUB SCREWS
ALLEN BOLT
LOCK NUT
ALLEN BOLTS
THRUST BEARING
ROLLER GUIDE
ROLLER GUIDE
SIDE VIEW
FRONT VIEW