Jet Tools 20QT-5, JWBS-18QT, 20QT-3, JWBS-20QT, 18QT-3 Replacing the Poly V-Belt

Replacing the Poly V-Belt

Disconnect machine from power source before making any adjustments.

1.Place the mode selection lever (J, Fig. 18) in the Full Release position.

Referring to Figure 25:

2.Loosen the lock handle (A) that secures the motor (C).

3.Release belt tension by pulling handle (B) up which raises the motor, then tighten lock handle (A).

4.Open the lower wheel door (C, Fig. 27) and remove the hex nut and washer (D, Fig. 27).

5.Remove the wheel (E, Fig. 28). If the lower wheel does not come off easily you may need to use a pulley puller to remove it.

Note: If you are doing a pulley alignment only, skip Step 6.

6.Remove the old belt (F, Fig. 28) and install the new belt.

Note: For higher blade-speed, place the belt on the pulleys closest to the motor (A, Fig. 26). For lower blade-speed, place the belt on the pulleys away from the motor (B, Fig. 26).

Since the wheel is still off, this is the most convenient time to check the wheel and motor pulley alignment. Jump to the Pulley Alignment procedure (following page) at this time. At the conclusion you will be redirected back here.

After the pulley alignment (if performed) is complete:

7.Reinstall the lower wheel, hex nut and washer and tighten the hex nut.

8.Unlock lock handle (A, Fig. 25). Apply belt tension by slightly pushing handle (B, Fig. 25) down.

9.Tighten the lock handle (A, Fig, 25) to secure the motor (C).

Important: Before operating the band saw, refer to the sections listed below and perform the required adjustments described in them.

ˆInstalling/Changing Blades (page 15)

ˆBelt Tension (below)

ˆBlade Tension (page 20)

ˆBlade Tracking (page 16)

ˆUpper Bearing Adjustments (page 17)

ˆLower Bearing Adjustments (page 18)

21

Figure 27

Figure 28