Grizzly G9979 owner manual Belt Pulley Tensioning Alignment Replacing V-Belts

	tensioning/replacing v-belts
V-Belt Pulley	Tensioning/
Alignment	Replacing V-Belts

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 47, to check the pulley alignment.

Wheel Pulley

Hex Bolts

Figure 47. Checking pulley alignment.

If necessary, use a 19mm wrench to loosen the two hex nuts securing the wheel pulley to its shaft, align the wheel pulley with the motor pulley, then re-tighten the hex bolts.

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 every three months—more often if the bandsaw is used daily. V-belts stretch with use and must be periodically re-tensioned.

Replace the V-belts as a matched set if they are cracked, frayed, or excessively worn.

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 48, using moderate force. When tensioned correctly, the deflection should be about 3⁄4".

Pulley

Deflection

Pulley

Figure 48. Checking for correct V-belt tension.

G8144Z/G8145Z/G8146Z	-41-
(Manufactured Since 6/11)