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

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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, raise
tension lever to release position – this will prolong
the life of blade and tires.
Figure 7-5
Figure 7-6
7.6 Blade tracking
Refer to Figures 7-5 and 7-7.
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 initially by
hand with machine disconnected from power.
1. Disconnect machine from power source.
2. Blade must be correctly tensioned (sect. 7.5).
Lower blade tension lever to tension position.
3. Back off blade guides so they will not interfere
with blade movement.
4. Loosen guide post locking knob (G
1
, Figure 7-
5) and use handwheel (G
2
) to lower guide post
until you can see blade through tracking window
(H).
5. Open upper door to expose wheel.
6. Rotate wheel by hand, observing position of
blade through tracking window. The blade
should ride approximately at center of tire
(Figure 7-7).
Figure 7-7
7. If blade tends to move toward left or right edge
of wheel, loosen locking handle (J
1
, Figure 7-5)
counterclockwise, and rotate tracking knob (J
2
)
with your right hand while continuing to rotate
wheel with your left.
IMPORTANT: This
adjustment is sensitive; perform in small
increments and give blade time to react to
changes.
8. When blade is tracking near approximate center
of wheel, tighten locking handle (J
1
), and close
upper door.
9. Connect saw to power and turn it on to observe
blade in action through tracking window. Make
further adjustments as needed.
7.7 Blade guides overview
Thrust (back support) bearings are located behind
saw blade and provide support to back of blade
when saw is in operation.
Guide bearings are located on either side of saw
blade and provide stability for blade when saw is in
operation. These bearings rotate on an eccentric
shaft so distance from blade can be adjusted for
optimal performance.
7.8 Upper blade guides
Blade teeth are sharp; use care
when working near saw blade.
The guide bearings should be set so that contact
between blade and guides will occur only when
blade is under pressure from a workpiece. To adjust
upper bearing guides for proper blade control,
proceed as follows.
Refer to Figures 7-8 and 7-9.
1. Disconnect machine from power source.
2. Blade must already be tensioned and tracking
correctly. See sect. 7.5 and 7.6 .