Southbend sb1016 owner manual Belts, To adjust the V-belts

For Machines Mfg. Since 7/09 S E R V I C E Model SB1016/SB1036

V-Belts

V-belts stretch and wear with use, so check them on a monthly basis to ensure optimal power transmission. Replace all of the V-belts if any of them show signs of glazing, fraying, or cracking.

Tools Needed:	Qty
Phillips Screwdriver #2	1
Open End Wrench 24mm	1

To adjust the V-belts:

1.DISCONNECT LATHE FROM POWER!

2.Remove the cover shown in Figure 145.

Motor Mount

Bolt

Figure 145. Location of belt tension adjustment.

3.Turn the hex nuts on the motor mount bolts shown in Figure 146 to move the motor mount plate up or down and adjust the V-belt tension. When correctly tensioned, each belt should have about 3⁄4" deflection when pressed firmly (see Figure 146).

To ensure that the belts do an equal part in transmitting power, always replace all of them at the same time. If one belt is larger or has more deflection than the others, the other belts will absorb the additional load and wear faster.

Pulley

Deflection

Pulley

Figure 146. V-belt adjustment.

4.Firmly tighten the hex nuts (loosened in the previous step) against the motor mount plate to prevent it from moving out of adjustment during operation, then re-install the motor cover.

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