Jet JWBS-12OS Operating Instructions And Parts Manual

Contents

Jet JWBS-12OS Operating Instructions And Parts Manual Manual pdf 13 page image

13Upper Blade Guide PositioningRefer to Figure 10. The blade guard has beenremoved for clarity.Never operate the Band Sawwithout all guards in place and in workingorder.The upper blade guide assembly should beadjusted to just above the material being cut. Toadjust:1. Disconnect machine from power source.2. Loosen lock knob (A) and raise or lower theupper blade guide assembly (C).3. Tighten lock knob (A). Make sure blade guideblocks (D) are still flat to the blade. Ifadjustment is necessary, loosen screw (E) androtate the assembly until the guide blocks (D)are flat to blade.Upper Blade Guide Tension AdjustmentIf the movement of the blade guide assemblyseems “stiff” when being raised or lowered, it canbe adjusted to slide more easily. This is controlledby an internal spring and ball that provides varyingdegrees of resistance against the guide post.To adjust tension on the spring:1. Using a 5mm hex wrench (not provided), tight-en or loosen the setscrew (B) until desiredtension is reached.2. Reattach and tighten the knob (A).Blade Guide Block AdjustmentThis adjustment is the same for upper and lowerblade guides. Only the upper blade guide is shown.Never operate the Band Sawwithout all guards in place and in workingorder.Referring to Figure 11:1. Disconnect machine from power source.2. Remove the blade guard (upper blade guideonly).Note: Blade must already be tensioned andtracking properly.3. Loosen thumbscrews (A) and move the guideblocks (B) as close to the blade (C) as possiblewithout pinching it.Figure 10Figure 114. Tighten thumbscrews (A).5. Loosen screw (D) (4mm hex wrench) andmove the guide block bracket (E) in or out untilthe front edge of the guide blocks (B) are justbehind the "gullets" of the saw teeth. Loosenthe screw (F) securing the blade supportbearing (G) if necessary.6. Tighten screw (D).7. Replace the blade guard.