189. USING LEATHER GLOVES AND ANSI Z87.1EYEWEAR TO PROTECT YOURSELF FROMTHE CUTTING BLADE, carefully remove theblade from the drive wheels. Remove theblade out of the saw table through the table.10. Hang the removed blade in a safe place.NOTE: Clean out the interior of the saw with ashop vacuum. Examine the bearings and otherexposed mechanisms of the saw.11. Using protective gloves, carefully ease thereplacement blade into the table slot and overthe upper and lower drive wheels.NOTE: It is possible to install the blade upsidedown. Make sure the teeth on the blade arepointing downward.NOTE: The blade should be “free standing” at thecutting throat; the upper and lower blade guidesshould not touch the blade at any point. Also,make sure the blade is in the slot in the bladeguard on the left side of the machine frame.Refer to Figure 1 to identify the blade guard.12. Apply tension to the blade using the tensionknob. The tension levels for various bladewidths are shown on the markings on thetension device. Refer to Figure 3 for a view ofthe tension system.13. Slowly turn the upper drive wheel by hand,while OBSERVING THE BLADE TRACKING.The blade should track, more or less, in thecenter of the drive wheel. If the blade does nottrack true, adjust the tracking to keep the bladecentered.14. Unlock the tilt adjustment knob by looseningits locking wing nut. Both the adjustment knoband wing nut are identified in Figure 7.15. Turn the tilt adjustment knob (usually a VERYLITTLE at a time) to adjust the tilt of the upperdrive wheel. Do this while turning the upperwheel by hand, and adjusting until the bladestays centered on the wheel.16. Tighten the tilt mechanism locking wing nut.17. Using the micro-adjusting knob, move thelower blade support assembly (Refer to Figure12) forward until the support bearing justcontacts the back edge of the saw blade.18. Adjust the lower carbide blade guides until theyjust contact the sides of the blade. Make surethe guides DO NOT CONTACT THE TOOTHPORTION OF THE BLADE. The guidesshould touch only the flat part of the blade.After correctly positioning the carbide guideblocks, tighten the set screws securely.Blade supportbearing micro-adjusting knobLevelingbolt locknutTable levelingboltTrunnionattachmentboltsBlade guidemicroadjustingknobFronttrunnionlockknob GuideblocksupportCarbideblade guideBladesupportbearingReartrunnionlockknobFigure 12. Lower Blade Guide SupportRear ViewFronttrunnionlock knobGuide blockmicroadjustingknobTrunnionattachmentboltFront trunnion Lower bladesupport bearingTable levelingpinRear trunnionlock knobreartrunnionCarbide guide blockFigure 13. Lower Blade Guide SupportsFront View19. Adjust the upper support assembly so thesupport bearing just contacts the back edge ofthe saw blade.20. Adjust the upper carbide blade guides until theyjust make contact with the blade BEHIND THETOOTH AREA OF THE BLADE. Then tightenthe set screws securely.21. Replace the table insert.22. Insert the table pin into its slot.23. Close the drive wheel guards.24. Plug the electrical cord into power source orclose the circuit breaker on the branch circuit.25. Turn on the power and observe the action ofthe blade to sure the blade is correctly ad-justed.