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13
Figure 7-4: test cut
7.7 Bow weight adjustment
Bow weight has been properly set by the
manufacturer and should not require attention. If
future adjustment becomes necessary, due to part
replacement or other contingency, proceed as
follows:
1. Disconnect machine from power source.
2. Raise bow to allow sufficient room for the
following procedure, and use hydraulic valve
knob to keep it in raised position.
3. Place one end of a fish-type scale under the
blade tension handle and lift the bow with the
other end of the scale. The scale should
indicate approximately 18-to-20 lbs. for the
HBS-916EVS. For the HBS-1018EVS, it should
indicate 22-to-24 lbs.
4. Adjust tension by loosening one nut on the C-
bolt (L, Figure 7-6) and tightening the other.
Tighten nut and retest the weight.
7.8 Vise adjustments
7.8.1 General procedure
1. Place workpiece between vise jaws with
required amount to be cut-off extending past
blade. (Figure 7-5 shows recommended
positioning of various workpiece shapes within
the vise.)
Figure 7-5: positioning in vise
2. Lift rack block (M, Figure 7-6) and manually
slide floating vise jaw in general proximity to
workpiece. Let block fall to re-engage rack.
3. Rotate handwheel to tighten jaw against
workpiece.
4. To retract vise jaw, lift rack block and manually
slide floating jaw away.
Figure 7-6: vise adjustments and limit switch
7.8.2 Angle cutting
19mm wrench required
1. Loosen both bolts on right/fixed jaw (M
1
, Figure
7-6) and swing jaw to desired angle, according
to scale at rear of bed. For more precise angles,
use a protractor. Tighten bolts.
2. Position workpiece against right jaw.
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