Woodstock W1773, W1772 owner manual Belt Service, To adjust V-belt tension, do these steps

W1772/W1773 37" Drum Sander

V-Belt Service

Tension

New V-belts often stretch and loosen up during the first 16 hours of use. After this period, they should be inspect- ed and re-tensioned if necessary.

Proper tension is important for optimum power transmis- sion. However, too much tension may cause premature bearing failure.

The correct V-belt tension is achieved when the V-belts can be deflected 1/2"–3/4" when pushed in the middle with moderate pressure. See Figure 39 for an example of how to perform a V-belt deflection test with a straightedge and ruler.

To adjust V-belt tension, do these steps:

1.DISCONNECT POWER TO THE SANDER!

2.Remove the table height handwheel and open the pulley cover.

3.Using a 19mm wrench, turn the motor mount nuts in the direction shown in Figure 40 to loosen or tighten the V-belts.

4.Close the pulley cover and reinstall the handwheel.

Removal/Replacement

Replace the V-belt if you notice fraying, cracking, glaz- ing, or any other damage. A worn/damaged V-belt will not provide optimum power transmission from the motor to the drums.

V-belt removal and replacement is simply a matter of loosening the V-belts until you can roll them off the pul- leys, replacing them with a MATCHED set, then re-ten- sioning them.

Note: A matched set means both the V-belts are the same size and also have the same serial number.

Pulley Alignment

Pulley alignment is another important factor in power transmission and belt life. The pulleys should be parallel to each other and in the same plane (coplaner) for opti- mum performance.

OFF

Figure 39. Checking V-belt tension with a

straightedge and a ruler.

Loosen	Tighten
V-Belts	V-Belts

Figure 40. V-belt tension controls.

SERVICE

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