Jet Tools 20QT-3, JWBS-18QT, 20QT-5, 18QT-3 Overview Bearing Adjustments, Upper Bearing Adjustments

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Overview – Bearing Adjustments

Thrust (back support) bearing are located behind the saw blade and provide support to the back of the blade when the saw is in operation.

Guide bearings are located on either side of the saw blade and provide stability for the blade when the saw is in operation. These bearings rotate on an eccentric shaft so the distance from the blade can be adjusted for optimal performance.

Upper 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 (previous page).

To adjust the thrust bearing:

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

Referring to Figure 21:

2.Loosen the wing nut (E) and slide the bearing and bearing post until the space between the thrust bearing (H) and the back edge of the blade (G) 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”.

3.Tighten wing nut (E).

To adjust the guide bearings (refer to Figure 22):

4.Loosen the locking handle (L) and slide the assembly until the front of the guide bearings rest just behind the gullet of the blade teeth (see inset).

5.Loosen two wing nuts (J1, J2). Rotate the adjustment handles (M) until the guide bearings

(K)rest lightly against the blade (N). Do not force the guide bearings against the side of the blade.

6.Tighten wing nuts (J1, J2 Fig. 22).

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

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

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Figure 21

Figure 22

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Contents Inch, 20-Inch Band Saw Warranty Period Warranty and ServiceTable of Contents Page Page JWBS-18QT-3 JWBS-20QT-3 Introduction SpecificationsModel JWBS-18QT Grounding InstructionsCircuit Information Models JWBS-18-3, -20QT-3, -20QT-5Unpacking Contents of Shipping ContainerHandwheel AssemblyMounting the Table For band saw model JWBS-18QTAssembling the Fence to Fence Body Rail AssemblyFence Assembly and Adjustment Fence Adjustment Miter Gauge Adjusting Clearance between Fence and TableResaw Guide Adjusting 90 Degree Table Stop AdjustmentsLoosen the lock knobs/lock handle G Tighten the lock knobs/lock handleBlade Tension Handwheel Installing/Changing BladesBlade Tracking Blade TensionUpper Bearing Adjustments Overview Bearing AdjustmentsThrust Bearing Adjustment Lower Bearing AdjustmentsGuide Gearings Adjustment Blade Lead Belt Tension Changing the Blade SpeedMotor C Handle aReplacing the Poly V-Belt Return to of the Replacing Poly V-Belt Pulley AlignmentBrake Pedal JWBS-20QT only Start/Stop SwitchOperating Controls Operation General ProcedureRipping CrosscuttingSaw Blade Selection ResawingBlade Breakage MaintenanceBlade Selection Guide Trouble TroubleshootingParts Replacement PartsIndex No. Part No Description Size Qty Upper Wheel Assembly 18QTTS-1533052 JWBS18X-MFC Lower Wheel and Motor Assembly 18QT#10-24 Blade Guide Assembly 18QT JWBS18DX-359 Table and Fence Assembly 18QT JWBS18-MGCP Upper Wheel Assembly 20QT JWBS18DXA-164 Lower Wheel and Motor Assembly 20QT #10-24x1-1/2 TS-069204 Lower Wheel and Motor Assembly 20QT Blade Guide Assembly 20QT 20x1/4 JWBS18DX-365 Upper Bearing Guide Lower Bearing Guide Blade Guide AssemblyJWBS20QT-FCP Table and Fence Assembly 20QTTS-0051091 Hex Cap Screw 4 HP, 1Ph Electrical ConnectionsHP, 1Ph Magnetic SwitchElectrical Board Band Saw Model No. JWBS-20QT-5 SN 708755B New Sanford Road LaVergne, TN 37086-4184, USA Phone

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.

The Jet Tools 20QT-3 and 20QT-5 are notable for their robust cast iron construction, ensuring stability and durability while handling heavy workloads. The 20QT-3 model comes equipped with a powerful 2 HP motor, providing ample performance for a variety of applications. It also features a versatile tilting blade system allowing precise angles for your cuts. Meanwhile, the 20QT-5 offers an enhanced motor capacity, boasting a 3 HP motor, further increasing its efficiency and capability in demanding tasks. Both models feature a large capacity of 20 quarts, ideal for extended projects where consistent performance is key.

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.

In addition to the 18QT, Jet offers an enhanced version, the JWBS-20QT. This model boasts a superior throat depth of 20 inches, allowing even more versatility for larger projects. It includes advanced features like an easy-to-use quick-release blade tension, making blade changes faster and more convenient, and an integrated dust collection port that helps to keep your workspace clean and free of debris.

The 18QT-3 model focuses on performance in a compact package, providing portability without sacrificing quality. It incorporates a sturdy base and adjustable height settings that allow it to adapt to various work environments, making it an excellent choice for smaller workshops or job sites.

In summary, the Jet Tools 20QT-3, 20QT-5, JWBS-18QT, 18QT-3, and JWBS-20QT represent the pinnacle of woodworking machinery. Their combination of durability, advanced technology, and user-friendly features make them ideal for both professionals and serious enthusiasts looking to achieve exceptional results. With Jet Tools, you can be assured of high performance and reliability in every project.
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