Setting Blade Speed; Blade Guide Adjustment - Jet HVBS-710SG Operating Instructions And Parts Manual

Figure 22
The saw blade can be considered correctly
adjusted when the variation measure is no more
than 0.012 inch across the face of the disk.
If you do not have a piece of 2-inch bar stock
available for a test cut, use a larger diameter
test piece rather than a smaller one. The
maximum thickness variation on any test piece
should be no more than 0.003 inch, per side, per
inch of stock diameter.

9.11 Setting blade speed

1. Turn machine OFF.
2. Turn lever (Figure 23) to desired setting:
#1 – 150 sfpm
#2 – 210 sfpm
#3 – 250 sfpm
Do not change blade speed
during cutting operation.
Figure 23
Material chips or shavings are the best indicator
of proper blade speed and downfeed rate. See
section 11.4, Evaluating cutting efficiency.

9.12 Blade guide adjustment

1. Loosen knobs (A, Figure 24).
2. Slide guide
workpiece as possible, without interfering
with the cut. This will prevent excessive
blade exposure, and deflection of blade
during cutting.
3. Retighten knobs.
The guide bearings come pre-adjusted from the
factory, but should be inspected frequently and
adjustments made as needed.
For most efficient operation and maximum
accuracy, provide 0.001" clearance between the
blade and the guide bearings. The bearings will
still turn freely with this clearance. If the
clearance is incorrect, the blade may track off
the drive wheel.
1. Disconnect machine from power source.
2. Raise bow to vertical and secure in place by
turning off hydraulic cylinder.
3. Loosen socket head cap screw (B, Figure
25) and adjust guide assembly until back
roller bearing (C) is slightly contacting back
edge of blade.
4. Loosen nut (D) and rotate eccentric shaft (E)
to adjust side bearing until bearing just
touches side of blade. Do not pinch the
blade.
5. Blade should still move up and down freely
when grasped as in Figure 26. Make sure
blade teeth do not interfere with guide
bearings.
disconnected and hands are protected
before handling blade.
17
assemblies as close
Figure 24
Make sure power
to
is