Jet VBS-18MW, Инструкция по эксплуатации и каталог запасных частей

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15
Blade Tension
Blade tension is set with the blade tension
handwheel (A, Figure 23) and is performed
following blade replacement and periodically as the
blade stretches from use.
Disconnect machine from
power source before making any adjustments.
Referring to Figure 23:
1. Set the blade tension by rotating the
handwheel according to the arrow directions in
Figure 23.
2. The gauge (B) indicates the approximate
tension according to the width of the blade in
inches. Initially, set the blade tension to
correspond to the width of your blade. The
VBS-18MW comes with a 3/4" metal working
blade, so the tension should be set at 3/4" on
the metal working scale when using this blade.
Note : A tension gauge can also be seen from
the front of the saw through the wheel when the
upper door is open.
As you become familiar with the saw, you may find
it necessary to change the blade tension from the
initial setting.
Keep in mind that too little or too much blade
tension can cause blade breakage and/or poor
cutting performance.
Tip: When the band saw is not being used, slightly
release the tension on the blade – this will prolong
the blade’s life. Make a note of the specific tension
setting for that particular blade, as shown on the
gauge (B). The tension can then be re-set quickly
when band saw operations are resumed.
Blade Tracking
Tracking refers to the position of the saw blade on
the wheels while the machine is in operation.
Tracking has been factory-adjusted. However, it
should be checked occasionally including after
every blade change.
Disconnect machine from
power source before making any adjustments.
Important : The blade must be properly tensioned
before adjusting blade tracking (see previous
section). Make sure the blade guides and other
parts of the machine will not interfere with the
movement of the blade.
To inspect and adjust tracking, proceed as follows:
Figure 23
1. Open upper front door to expose the wheel.
Rotate the wheel clockwise by hand and
observe the position of the blade on the wheel
through the window (E). The blade should ride
upon the center of the wheel (Figure 24).
2. If the blade tends to move toward the edge of
the wheel, loosen the wing nut (D) and slightly
rotate the knob (C). Rotating the knob
clockwise will cause the blade to move toward
the rear edge of the wheel. Rotating the knob
counterclockwise will cause the blade to move
toward the front edge of the wheel.
Note : 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.
3. When the blade is tracking properly in the
center of the wheel, re-tighten the wing nut (D).
4. Close the upper front door.
Figure 24