Lower Bearing Adjustments

Unplug the machine from power source before making any adjustments! Blade teeth are sharp - use care when working near the saw blade. Failure to comply may cause serious injury.

Note: Blade tension and tracking must be properly adjusted prior to bearing guide setup. Refer to the Blade Tension section (page 16).

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

Referring to Figure 23:

2. Loosen the thumb screw (B).

This will allow the thrust bearing (A) to move freely and prevent interference with the saw blade (C) during the following steps.

Guide Gearings Adjustment

3.Loosen the locking handle (D) then turn the adjustment screw (E) to adjust the assembly forward or backward until the front of the guide bearings (F) rest just behind the gullet of the blade teeth (C and inset).

4.Tighten the locking handle (D).

Thrust Bearing Adjustment

5.With the thumb screw still loose (from Step 1), slide the thrust bearing and bearing post until the space between the bearing (A) and the back edge of the blade (C) is approximately 1/64”.

A convenient way to achieve this spacing is by placing a dollar bill folded twice (four thicknesses) between the blade and support bearing – four thicknesses of a dollar bill is approximately 1/64”.

6.Tighten the thumb screw (B).

7.Loosen the lock knob (G). Rotate the adjustment handles (H) until the guide bearings

(F)rest lightly against the blade (C). Do not force the guide bearings against the side of the blade.

8.Tighten the lock knob (G).

Check to make sure the adjustments have not changed and the bearing guides do not pinch the blade.

Figure 23

Place the mode selection lever (J, Fig. 18) in the Partial Tension position when the machine is not in use.

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Jet Tools JWBS-20QT, JWBS-18QT, 20QT-5 Lower Bearing Adjustments, Guide Gearings Adjustment, Thrust Bearing Adjustment
Page 17 Page 19

JWBS-20QT, 18QT-3, JWBS-18QT, 20QT-5, 20QT-3 specifications

Jet Tools has long been recognized as a reliable name in the woodworking and metalworking industries, offering a variety of high-quality tools tailored for both professional craftsmen and enthusiastic hobbyists. Among their product range, the Jet Tools 20QT-3, 20QT-5, JWBS-18QT, 18QT-3, and JWBS-20QT stand out due to their innovative features, technologies, and stellar performance.

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The JWBS-18QT is another gemstone in Jet's lineup, designed specifically for woodworkers needing precision and control. With an 18-inch throat capacity, it accommodates larger workpieces with ease. Its heavy-duty construction minimizes vibration, leading to more accurate cuts. The JWBS-18QT incorporates Jet’s exclusive blade tracking technology, which ensures optimal blade alignment and reduces wear, improving the lifespan of the blade.

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