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G0640X 17" Wood/Metal Bandsaw
-31-
Blade Speed
This bandsaw features a variable blade speed
between 100–3600 FPM. There are two blade
speed ranges. A fast range for wood cutting and
a slow range for metal cutting.
The variable speed dial controls the blade speed
within each range. The position of the V-belts
behind the lower wheel cover control which speed
range is activated. A disc with a spiral shape is
located near the motor as a reminder to the oper
-
ator which blade speed range is engaged. The
disc spins when the metal cutting speed range is
engaged.
The V-belt tension is controlled in two ways,
depending on which position it is in. When in the
"wood" position, the V-belt tension is controlled
by the position of the motor, which pivots to ten
-
sion/loosen the belt.
At "metal" position, the V-belt tension is controlled
by the hand crank located between the dust
ports.
Figure 41. V-belt positions for speed ranges.
Figure 42. V-belt deflection.
5. Move the V-belt(s) to the desired position.
6. Tension the V-belt(s) to deflect approximately
1
⁄2" (see Figure 42).
Note: If one belt is used more than the other
belt, it will stretch slightly under n
ormal condi-
tions. This means that one belt may be looser
than then other when both belts are installed.
This is normal. Overtightening one belt in
attempt to tighten the other will decrease the
lifespan of the bearings in the pulleys.
Figure 40. Spiral disc near motor (spins when
belts are positioned for metal cutting).
To change the V-belt positions:
1. DISCONNECT BANDSAW FROM POWER!
2. Open the lower wheel cover.
3. Loosen the V-belt tension.
4. Refer to Figure 41 to locate the correct V-belt
position for the desired speed range.
7. Close all wheel covers.
8. Press the button below the "Blade Speed"
digital display to light up either the "Wood"
or "Metal" light so it matches your V-belt set
-
ting.