Upper Blade Guide Positioning; Upper Blade Guide Tension Adjustment; Blade Guide Block Adjustment - Jet JWBS-12OS Operating Instructions And Parts Manual

12-inch woodworking band saw
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Upper Blade Guide Positioning

Refer to Figure 10. The blade guard has been
removed for clarity.
Never operate the Band Saw
without all guards in place and in working
order.
The upper blade guide assembly should be
adjusted to just above the material being cut. To
adjust:
1. Disconnect machine from power source.
2. Loosen lock knob (A) and raise or lower the
upper blade guide assembly (C).
3. Tighten lock knob (A). Make sure blade guide
blocks (D) are still flat to the blade. If
adjustment is necessary, loosen screw (E) and
rotate the assembly until the guide blocks (D)
are flat to blade.

Upper Blade Guide Tension Adjustment

If the movement of the blade guide assembly
seems "stiff" when being raised or lowered, it can
be adjusted to slide more easily. This is controlled
by an internal spring and ball that provides varying
degrees of resistance against the guide post.
To adjust tension on the spring:
1. Using a 5mm hex wrench (not provided), tight-
en or loosen the setscrew (B) until desired
tension is reached.
2. Reattach and tighten the knob (A).

Blade Guide Block Adjustment

This adjustment is the same for upper and lower
blade guides. Only the upper blade guide is shown.
Never operate the Band Saw
without all guards in place and in working
order.
Referring to Figure 11:
1. Disconnect machine from power source.
2. Remove the blade guard (upper blade guide
only).
Note: Blade must already be tensioned and
tracking properly.
3. Loosen thumbscrews (A) and move the guide
blocks (B) as close to the blade (C) as possible
without pinching it.
4.
Tighten thumbscrews (A).
5.
Loosen screw (D) (4mm hex wrench) and
move the guide block bracket (E) in or out until
the front edge of the guide blocks (B) are just
behind the "gullets" of the saw teeth. Loosen
the screw (F) securing the blade support
bearing (G) if necessary.
6.
Tighten screw (D).
7.
Replace the blade guard.
13
Figure 10
Figure 11

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