Jet HVBS-712V, Operating Instructions And Parts Manual

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3. Place a weigh scale (such as spring or hanging
scale) beneath blade tension handle, and lift
saw bow. Scale should indicate approximately
5 to 6 kg (11-13 lb).
4. If adjustment is needed, loosen one nut and
tighten the other (Figure 8-13) on eye bolt, until
scale indicates 5 to 6 kg (11-13 lb).
A good indication of proper feed pressure is the
color and shape of the cutting chips. If the chips are
thin or powdered, increase feed pressure. If the
chips are burned and heavy, decrease feed
pressure. If they are still burned and heavy, reduce
blade speed. Optimum feed pressure has been set
when the chips are curled, silvery, and warm.
Figure 8-13: feed pressure adjustment
8.13 Blade-to-table squareness
The blade must be perpendicular to table to ensure
a straight cut. This setting should be confirmed by
the user. Special blade setting gauges can be
purchased for this type of inspection; however, it can
also be done using more common shop items, as
follows.
1. “Extend” the blade surface by clamping a
straight, flat object to blade. (Figure 8-14 uses
small, lightweight aluminum ruler.) Use
lightweight clamp.
2. Place square on table and against ruler. The
square should lie flat against ruler without a
gap.
3. If there is a gap, loosen bolt (Q, Figure 8-9) on
each blade guide assembly and rotate blade
guide assembly until gap is eliminated between
square and ruler.
4. Retighten bolts (Q, Figure 8-9).
5. After making this adjustment, be sure to
reinspect other blade adjustments as noted in
this manual.
Figure 8-14: table/blade squareness
8.14 Auto shut-off adjustment
The saw is properly adjusted when blade shuts off
just after cut completion. To set this:

If saw completes cut but blade continues
moving, adjust trip tab (V, Figure 8-15)
downward.

If blade stops before cut is complete, adjust trip
tab (V) upward.

If blade stops descending and continues
running without completing the cut, turn stop
bolt (W) down.
Figure 8-15: shut-off adjustment
8.15 Vise positioning (712DV only)
Use handwheel (A, Figure 8-16) to move floating jaw
to open and close vise.
To move complete fixed jaw assembly, loosen
handle (B).
Vise can be adjusted for square and miter cuts.
Loosen handle (C), pull out stop pin (D), and rotate
fence to desired angle on scale. For standard angles
(0/15/30/45 deg.), allow stop to reengage at detent,
otherwise rotate stop to keep it disengaged.
NOTE: Scale is for reference only; check angles
with protractor if greater precision is needed.