BIRO EMG-32, Руководство по эксплуатации и список запасных частей

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11
“EAGLE” DRIVE SYSTEM
Tensioning Instructions
1. Place a straight edge on top of the belt and across both sprockets as shown in the diagram.
2. Set the large O-Ring at the 1
st
Graduation (⅛” line) on the Tension Tester,
Item No. H384-EAGL-TSTR.
3. Set the small O-Ring on the deflection force scale to ZERO.
4. Place the tension tester squarely on the belt at the center of the belt span (see Diagram).
c. Retighten the motor mounting bolts.
Do not rely on “feel” for the proper belt tension as this typically results in belts that are
under-tensioned.
Loose belts will fail due to “ratcheting” (jumping a tooth), tooth shearing, and breakage.
5. Apply a force to the plunger until the large O-Ring is even with the bottom of the straight edge which has
been laced across both sprockets (⅛” belt deflection).
6. Remove the tension tester and read the force recorded from the bottom of the small O-Ring on the force
scale.
7. The force should be equal to the value indicated in the force table #1-7 depending on the “HP” of the
grinder, and if the belt is “new” or “used.”
8. If the force values do not equal those shown in table #1-7, increase the tension as follows:
a. Loosen the 4 motor mounting bolts slightly.
A
b. Advance the jacking screw ¼ turn each (be sure to advance both screws an
equal
amount).
B
d. Re-check the belt tension according to the above procedure.
Note-
The “Eagle” drive belts do not stretch. However, there is a “break-in” period where the teeth in the
belt “mesh” with the teeth of the sprockets during the 1
st
few hours of operation.
The belt should be re-tensioned after 1 week of operation, according to this tensioning procedure.
No further maintenance is required after this initial adjustment.