Craftsman 315.2145 Tensionadjustingknob, To Increase To Decrease, Adjusting Blade Tension

Page 15

Note:The blade may need to be turned inside out if the teeth are pointing in the wrong direction. Hold the

TENSIONADJUSTINGKNOB

blade with both hands and rotate it inward.

TO INCREASE

TO DECREASE

Place the blade through the upper blade guides and around the upper wheel. Place the blade around the lower wheel on the left. Work the blade around the third wheel making sure it goe_ between the lower blade guides. Pull down on the upper wheel slightly to place the saw blade on the third wheel, if needed. Slowly turn the upper wheel to the right or clockwise by hand to center the blade on the rubber tires.

TENSION

TENSION

Fig. 15

Adjust the blade tension and check or adjust the blade tracking. See pages 15 and 16.

Adjust both upper and lower blade guides and thrust bearings. See pages 17 and 18.

Replace the truss head screw and wing nut.

Tighten securely.

Close the cover of the band saw.

ADJUSTING BLADE TENSION

See Figures 14 and 15.

Turn off and unplug the saw.

AWARNING: Failure to unplug your saw could result in accidental starting causing possible

serious personal injury.

QUICKRELEASEKNOB

TO RELEASE

TO ENGAGE

Fig. 14

The tension adjusting knob is on the top of the

saw. Rotate the quick release knob (outer, larger

knob) 1/4 turn to the left or counterclockwise to release blade tension.

Turn the tension adjusting knob (upper, smaller knob) to the right or clockwise to increase tension or raise the upper wheel. Turn it to the left or counterclockwise to decrease tension on the blade or lower the upper wheel.

Note: Adjustments of the blade tension can be made at anytime. The quick release knob can be either released or engaged while making adjustments with the tension adjusting knob.

Rotate the quick release knob to the right or clockwise 1/4 turn to engage tension before using the band saw.

To check the tension, raise the blade guide assembly all the way up exposing the blade.

Pushing the blade to the side with moderate force, the blade should deflect approximately 1/8 in.

Another method of checking the tension has to do with the sound the blade makes when plucked like a guitar string.

Pluck the back straight edge on the coasting side

opposite the blade guides while turning the tension knob. Sound should be a musical note.

Sound becomes less flat as tension increases. Sound decreases with too much tension.

Using either method to check tension requires knowing your band saw and can be developed with practice.

Never tension the blade so tight as to completely

compress the spring. The spring can no longer act as a shock absorber.

Note: Be careful not to over tension the blade. Too much tension may cause the blade to break. Too little tension may cause the blade to slip on the wheels.

15

Image 15
Contents Save this manual for OwnersManualFull ONE Year Warranty on Craftsman Band SAW Read ALL Instructions SymbolMeaning Safety Alert Symbol Remove Adjusting KeysRules for Safe Operation Rules for Safe Operation Grounding PIN COVER01FGROUNDED Outletbox Extension CordsElectrical Connection Grounding Instructions118 in. to 3/8 Blade Length Bevel CutFPM Reeaw5116in. SOCKET/NUTDRIVER Small Combination SquareSmall Combination Square #2 PhilupsscrewdriveDvertencia Awarning I Advertencia Angleadjustmeni Dataplate Knob Angle Adjustment KnobTension Adjustment Knob Tracking Adjustment ScrewWingnut Trusshead Screw Flathead ScrewsMounting Band SAW to Workbench 8in HEX Nuts 4in In. Dia 12in`Mounting Board Clamps Workbench Adjusting Blade Guide AssemblyClamping Band SAW to Workbench UnlockedbladeguideOpen Installing and Adjusting BladeSAW Blade Lowerght Wheel FrontcoverTension TensionadjustingknobAdjusting Blade Tension To Increase To DecreaseHexkey To AdjustTracking the Blade Aligning the Table Square to BladeBladeguide Thrustbearing Screws Angli Knob Adjusting Thrust BEARINGS, BladeGuardremoved Blade Bladeguide Supportscrew Thrustbearing ScrewPushoff Pullon Onioefknob With Variablespeed Toincreasespeed ON/OFFKNOBWiTH ON/OFFKNOB With Variablespeed Lockpost General Operation Lock PostOpen band saw cover Metal Cutting General MaintenanceChoice of Blade and Speed Typesof Blades AndapproximatespeedsMOTOR/ELECTRICAL Motor BrushesBrush Brush Brushholder Screw Blade GuidesCounterclockwiseclockwise to Tighten Drive BeltLowerrightwheel Drivebelt Wheel Motor Nuts Motorpulley DrivebeltProblem CauseSoluon Page Craftsman Band SAW- Model no Figure aSee Back page for Parts Ordering Instructions Craftsman Band SAW- Model noCraftsman Band SAW Model no Figure BParts List for Figure B Figure C Base Description QuanFigure D Blade Guard Blade Guide Blade GuideMY-Home s