Grizzly G0668, Owner'S Manual, Page: 38 / 60

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G0668 20" Vertical Metal-Cutting Bandsaw
Tensioning V-Belts
tensioning v-belts
Tools Needed: Qty
Wrench 12mm ................................................... 1
To ensure optimum power transfer from the motor
to the blade without slipping, the V-belts must be
in good condition and operate under proper ten-
sion. Check V-belt tension at least monthly—more
often if the bandsaw is used daily. V-belts stretch
with use and must be periodically re-tensioned.
To check/tension/replace the V-belts:
1. DISCONNECT BANDSAW FROM POWER!
2. Remove the rear motor access panel.
3. Make sure the motor and lower wheel pulleys
are correctly aligned.
4.
Push the center of each V-belt as illustrated
in Figure 42 , using moderate force. When
tensioned correctly, the deflection should be
about
3
⁄
4
".
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Figure 42.
Checking for correct V-belt tension.
Lower Wheel Pulley
Alignment
Tools Needed: Qty
Hex Wrench 6mm .............................................. 1
Wrench 19mm ................................................... 1
The correct alignment of the motor and lower
wheel pulleys helps to ensure correct and even
tension of the V-belts, proper power transmission,
and reduced V-belt heat and wear during opera-
tion.
Remove the rear motor access panel, and use
a straightedge across both pulleys, as shown in
Figure 41 , to check the pulley alignment.
If necessary, loosen the fasteners securing the
wheel pulley to the shaft, align the wheel pulley
with the motor pulley, then re-tighten the fasteners
for both pulleys.
Figure 41.
Checking pulley alignment.
Wheel Pulley
Hex Bolts
pulley alignment
— If the deflection is correct and the V-belts
are in good condition, no further action is
required. Replace the rear motor access
panel.
— If the deflection is more than or less than
3
⁄
4
" or the V-belts need to be replaced, then
continue with the next steps.