Magnum Industrial MI-91500, Руководство по эксплуатации

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10
BASIC ADJUSTMENTS
MAGNUM INDUSTRIAL MI-91500 DELUXE 14” BAND SAW
ADJUSTING THE UPPER AND LOWER BLADE GUIDES
The GUIDE BEARINGS (A) keep the blade from moving from side to side during cutting and, to ensure accuracy, must be snug
to the blade but not touching it. The space between each guide bearing and the blade must not exceed 0.02” (the thickness of a
sheet of paper). If less space is left, the blade can jam between the bearings. This can cause the blade to overheat and break. See
Figure 31. Also, the guide bearings must remain at least 1/32” behind the blade teeth to prevent damage to the blade. See Figure
32. The
THRUST BEARING (C) keeps the blade from moving back and out of position when the work is being fed into the blade
and must be very close to the back of the blade to prevent damage to the blade during cutting.
FIGURES 31 and 32: BLADE GUIDE ADJUSTMENT
FIGURES 33 and 34: BLADE GUIDE ADJUSTMENT
FIGURE 33: BLADE GUIDE ADJUSTMENT
WARNING!
To avoid injury, ensure the power switch is OFF and the power cord is unplugged before adjusting the band saw.
Next adjust the upper thrust bearing:
8. Loosen the UPPER THUMB SCREW (G) .
9. Move the UPPER THRUST BEARING SHAFT (H)
in or out until the thrust bearing barely touches
the blade. (Should be 1/64” behind the back of the
blade). See inset of Figure 35.
10. Re-tighten the UPPER THUMB SCREW (G) .
Before adjusting the upper and lower blade guides
assemblies, make sure the blade is tensioned and
tracking properly. Adjust the upper and lower blade
guides assemblies after each blade tension and tracking
adjustment. Whenever the upper guide bearings and
thrust bearing are adjusted, the lower guide bearings and
thrust bearing should also be adjusted.
To adjust the upper guide bearings, follow these steps:
1. Loosen SET SCREW (A) with the supplied 3 mm Allen key.
2. With a FLATHEAD SCREWDRIVER (B) rotate the bearing
clockwise about one quarter turn until the gap between
the bearing and blade is 0.02”. See Figure 33. Use a feeler
gauge or piece of paper to check the clearance.
3. Re-tighten SET SCREW (A) to secure the guide bearing.
4. Repeat Steps 1 to 3 with the other upper guide bearing.
5. Loosen the LOWER THUMB SCREW (D) .
6. Move the UPPER GUIDE BEARING SHAFT (E) in or out
until the guide bearing are at least 1/32” behind the
BLADE TEETH (F) . See Figure 34.
7. Re-tighten the LOWER THUMB SCREW (D) .
To adjust the positioning of the lower guide bearings and
thrust bearing, repeat steps 1 to 10 with the lower guide
bearings and thrust bearing.
35
33 34
31 32