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9
Material chips or shavings are the best indicator of
proper speed and downfeed. The ideal chip is thin,
tightly curled, and warm to the touch. Chips that
range from golden brown to black indicate
excessive force. Blue chips indicate extreme heat
from too high a band speed, which will shorten
blade life. Thin or powdered chips indicate
insufficient downfeed rate.
11.8 Changing blades
Disconnect machine from the
power source before making any adjustments
or repairs. Failure to comply may result in
serious injury.
1. Raise the saw arm approximately 6".
2. Disconnect machine from power source.
3. Open both wheel covers and clean chips out of
both wheel housings. Loosen lock knobs and
remove upper and lower blade guards.
4. Release blade tension by turning blade
tensioning handwheel (A, Figure 8) counter-
clockwise until blade is free.
Figure 8
5. Loosen lock handle and slide left blade guide
arm (B, Figure 8) to the right as far as
possible.
Remove old blade from both wheels and out of
each blade guide.
Even dull blades are sharp
to the skin. Use extra caution handling
band saw blades.
6. Install a new blade making sure teeth are
pointed downward in the proper cutting
direction.
7. Position blade on wheels and tighten just
enough to hold blade on wheels. Make sure
back of blade rests lightly against the wheel
flange of both wheels. Twist blade slightly to
allow it to slip into guides.
8. Tension blade to approximately 25,000 lbs.
Blade tension is indicated on the tension wheel
shaft housing (left side).
9. Install all guards, close covers and fasten
securely. Connect machine to power and run
freely for approximately two minutes.
10. Turn power off and re-check blade tension and
wire brush adjustment. If further adjustment is
necessary, disconnect saw from power source,
make adjustments, and re-connect to power.
11.9 Blade guide adjustment
11.9.1 Bearing guides
The bearings come pre-adjusted from the factory.
If adjustment is needed follow the below steps.
Refer to Figure 9.
1. Disconnect machine from power source.
2. Loosen two hex socket cap screws (A, Figure
9).
3. Move guide seat (B) up or down until an
approximate clearance of .003" between blade
and bearing is obtained, (C).
4. Tighten two hex socket cap screws (A).
Figure 9
Refer to Figure 10:
5. Adjust the eccentric bearings (A, Figure 10) by
loosening hex socket cap screw (B) about one
full turn.
6. With a 19mm wrench turn hex nut (C) until the
ball bearings are approximately .003” from
blade. Note: Do not pinch the blade.
7. Tighten the hex socket cap screw (B) while
holding the hex nut (C) in place.
8. Repeat for other blade guide assembly.
9. Connect machine to power source.
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