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9.11 Setting blade speed
1. Turn machine OFF.
2. Loosen knob (A, Figure 23) and open pulley
cover.
3. Reduce belt tension by turning the two screws
(B, Figure 23) counterclockwise.
4. Slip belt over pulleys for desired speed,
according to chart inside pulley cover (also
shown in Figure 24).
5. Tighten screws to tension belt. Proper tension
is when center of belt can be pushed with a
finger approximately 1/2-inch.
Material chips or shavings are the best indicator of
proper blade speed and downfeed rate. See
section 11.4, Evaluating cutting efficiency.
The belt should be parallel from motor pulley to
worm pulley. If adjustment is needed, loosen the
nuts holding the motor to the plate, and adjust
motor until belt is parallel. Retighten nuts.
Figure 23
Figure 24
9.12 Blade guide adjustment
1. Loosen knobs (A, Figure 25).
2. Slide guide assemblies as close to 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
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 26)
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 27. Make sure
blade teeth do not interfere with guide
bearings.
disconnected and hands are protected
before handling blade.
6. Tighten nut (C).
7. Repeat for other blade guide assembly.
17
Figure 25
operation and
maximum
Make
sure
power
Figure 26
is
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