Jet JWBS-14SF, Инструкция по эксплуатации и каталог запасных частей

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4. Open upper door.
5. Rotate tension handwheel (A, Figure 20) until
scale pointer (B) indicates width of installed
blade.
TIP: Use the band saw’s gauge setting initially. As
you become familiar with the machine and with
different properties of band saw blades, you may
find it necessary to change blade tension from
initial setting. Keep in mind that not only changes in
blade width, but also type of material being cut will
have an effect on blade tension. Too little or too
much blade tension can cause blade breakage
and/or poor cutting performance.
Figure 20
Make a note of the specific tension setting for a
particular blade. Tension can then be re-set quickly
when that blade is reinstalled.
IMPORTANT: When band saw is not being used,
move blade tension handle to “Partial Tension-
Idle/Tracking” position. This will prolong the life of
blade and tires, and reduce load on wheels,
bearings and other components.
8.11 Blade tracking
Refer to Figures 21 and 22.
After proper tensioning, the blade must be tracked.
“Tracking” refers to position of blade on the wheels
while machine is in operation. Tracking should be
checked periodically, and is mandatory after every
blade change. Blade tracking is done by hand with
machine disconnected from power.
1. Disconnect machine from power source.
2. Blade must be correctly tensioned (section
8.11).
3. Make sure blade guides and other parts of
machine will not interfere with blade
movement. Lower guide post until you can see
blade through tracking window (H, Figure 21).
4. Set blade tension handle initially to “Partial
Tension-Idle/Tracking” position, as shown in
Figure 21.
Figure 21
5. Open upper door to expose wheel.
6. Rotate wheel by hand, observing position of
blade through tracking window. As you rotate
wheel, move lever to “Full Tension” position.
The blade should continue to ride upon center
of tire (Figure 22).
Figure 22
7. If blade tends to move toward edge of wheel,
set handle to “Partial Tension-Idle/Tracking.”
8. Loosen locking nut (J, Figure 21) and slightly
rotate tracking knob (K) with your right hand
while continuing to rotate wheel with your left.
Observe blade through tracking window.
Rotating knob clockwise will cause blade to
move toward rear edge of wheel. Rotating
knob counterclockwise will cause blade to
move toward front edge of wheel.
IMPORTANT: This adjustment is sensitive;
perform in small increments and give blade
time to react to changes.
9. When blade is tracking in center of wheel, re-
tighten locking nut (J), and close upper door.
10. Move tension handle to “Full Tension” position,
and connect band saw to power. Turn it on for
a brief time to observe the blade in action
through tracking window.
11. If further adjustments are needed, disconnect
from power and repeat above procedure.