Machine Operation - Jet JWBS-20 Operating Instructions Manual

In case of machine overload the motor overload cut-off will
react.
After appr.10 min of cooling the machine can be started
again.

6. Machine operation

Correct working position:
In front of the machine standing in the direction of cutting.
Cut preparation:
Bring the upper blade guide to a distance of approximately
3mm to the workpiece (Fig 19).
For your own safety, always set the saw guide as close to the
workpiece as possible.
Work only with a sharp and flawless sawblade.
Make sure blade is tracked and tensioned correctly.
Make sure blade guides are adjusted correctly.
If using the fence, move it into position and lock it to the
guide rail. Work only with rip fence securely locked in place.
For narrow shallow cuts on the rip fence, place the fence
profile into the horizontal position (Fig 13).
Turn on band saw and allow it to reach full speed.
Workpiece handling:
Hands placed flat on the workpiece outside the cutting area.
Fig 18
Fig 19
Feed the workpiece towards the saw blade in the direction of
the saw line, and cut as required by turning to follow the line
drawn.
Push the workpiece steadily forward; complete the cut as a
single movement.
If possible, do not draw the workpiece back, as this could
cause the sawblade to run off its wheels.
Support long and wide workpieces with helping roller stands.
Near the cutting area use a push stick to feed, to prevent your
hands to come close to the saw blade.
Make relief cuts whenever necessary. A relieve cut is an extra
cut made through the waste portion of the wood.
Use a feeding template to safely guide small and narrow
workpieces.
Use a suitable wedge to prevent round timber from turning
under the pressure of the cut.
Blade Drift:
Blade drift is a frequent problem on rip cuts and during
resawing.
Blade drift may occur when the fence is being used, the blade
begins to wander off the cutting line (Fig 20).
Blade drift can be caused by a number of factors.
- The saw blade follows the grain
- The saw blade is dull.
- Blade guides not adjusted correctly.
- Blade tension insufficient.
- Blade-teeth have asymmetric"set"
Fig 20
.