Woodstock W1770 Tooth Pitch, Blade Care, Blade Breakage, Most common causes of blade breakage are

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OPERATIONS

W1770 21" Bandsaw w/Foot Brake

Tooth Pitch

Usually measured as TPI (teeth per inch), tooth pitch determines the size/number of the teeth. More teeth per inch (fine pitch) will cut slower, but smoother; while fewer teeth per inch (coarse pitch) will cut rougher, but faster. As a general rule, choose blades that will have at least three teeth in the material at all times. Use fine pitched blades on harder woods and coarse pitched blades on softer woods.

Blade Care

A bandsaw blade is a delicate piece of steel that is sub- jected to tremendous strain. You can obtain longer use from a bandsaw blade if you give it fair treatment and always use the appropriate feed rate for your operation. Be sure to select blades with the proper width, style, and pitch for each application. The wrong choice of blades will often produce unnecessary heat which will shorten the life of your blade.

A clean blade will perform much better than a dirty blade. Dirty or gummed up blades pass through the cut- ting material with much more resistance than clean blades. This extra resistance also causes unnecessary heat. Resin/pitch dissolving cleaners are excellent for cleaning dirty blades.

Blade Breakage

Many conditions may cause a bandsaw blade to break. Blade breakage is unavoidable, in some cases, since it is the natural result of the peculiar stresses that bandsaw blades must endure. Blade breakage is also due to avoid- able circumstances. Avoidable breakage is most often the result of poor care or judgement on the part of the operator when mounting or adjusting the blade or support guides.

The most common causes of blade breakage are:

•Faulty alignment/adjustment of the guides.

•Forcing/twisting a wide blade around a short radius.

•Feeding the workpiece too fast.

•Dull teeth or damaged tooth set.

•Overtensioned blade.

•Top blade guide assembly set too high above the workpiece.

•Using a blade with a lumpy or improperly finished braze or weld.

•Continuously running the bandsaw when not in use.

•Leaving blade tensioned when not in use.

•Using the wrong TPI for the workpiece thickness.

(The general rule of thumb is three teeth in the

workpiece at all times.)

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Contents OWNERS MANUAL Page Contents Woodstock Technical Support Functional OverviewMachine Specifications W1770 21 Bandsaw w/Foot Brake Controls and Features Safety Safety Always Lock Mobile Bases if Used Before Operating Machinery Additional Safety for Bandsaws Use push blocks when necessary Use push sticks whenever possibleExtension Cords Electrical Specifications220V Operation Description Qty Items Needed for SetupUnpacking Hardware and Tools InventoryBox Inventory Figure Qty Machine Placement Cleaning MachineLifting & Moving Lifting the bandsaw 2x4Mounting to Shop Floor Bolting to Concrete FloorsGuide Post Handwheel To install the fence, do these stepsFence Changes in the blade tension may change the blade tracking Blade TrackingTo center track the blade, do these steps Positive Stop To set the positive stop, do these stepsDust Collection To connect the dust collection hoses, do these stepsTest Run To test run the machine, do these stepsResetting the switch To tension the bandsaw blade, do these steps Adjusting Blade Guide Bearings onTensioning Blade Adjusting Blade Guide Bearings To adjust the upper blade guides, do these stepsAdjusting Support Bearings To adjust the upper support bearing, do these stepsBlade aligned 0.016 away from Bearing edge To adjust the lower support bearing, do these steps Lower support bearing controlsAligning Table Cap screws securing table to TrunnionAligning Fence Cap screws securing rail toCalibrating Fence Pointer Calibrating Miter GaugeTo calibrate the pointer, do these steps To calibrate the miter gauge, do these stepsTo install the resaw fence, do these steps Enough to slide on the resaw fenceControl Panel GeneralBasic Controls Front Controls Figure Rear Controls FigureWorkpiece Inspection Cutting wood with minor WarpingBandsaw is capable of performing the following cuts Cutting OverviewBasic Cutting Tips Foot Brake Guide PostFine Tune Tracking Blade LeadCorrecting Blade Lead Aligning Table on Page 27 and Aligning Fence onTo shift the table, do these steps Table Tilt Rip CuttingTo tilt the table, do these steps To make a rip cut, do these stepsCrosscutting ResawingTo make a 90˚ crosscut, do these steps To resaw a workpiece, do these stepsTo complete a stacked cut, do these steps Cutting CurvesStacked Cuts Tooth Style Blade LengthBlade Width Tooth Pitch Blade CareBlade Breakage Most common causes of blade breakage areTo replace a blade, do these steps Blade ChangesTo remove a blade, do these steps Cleaning Table & BaseBrushes LubricationLubricant Frequency Quantity Tension Adjustment AssemblyBlade Guide Rack and Pinion To lubricate the trunnion, do these steps Table Tilt Rack and Pinion AssemblyTrunnion Tools Needed Checking and Tensioning BeltsChecking V-Belts Follow Steps 1-2 in Checking V-Belts on Tensioning V-BeltsReplacing V-Belts Adjusting Tension Lever To adjust the tension lever, do these stepsAdjusting Wheel Blade Brushes To adjust the brushes, do these stepsReplacing Brake Shoe Components and Hardware NeededTo replace the brake shoe Follow Steps 1-4 in Replacing V-Belts onAligning Wheels Checking CoplanarityShimming Upper Wheel GaugeAdjusting Lower Wheel To adjust the lower wheel, do these stepsPower supply terminal box Electrical ComponentsSee Figure Wiring DiagramSee , Troubleshooting Motor & ElectricalMachine Operations Cutting Tips onParts Labels & Cosmetic PartsBlade Guides-Cover Breakdown Guide Post-Table Tilt Breakdown PartsTable-Trunnion Breakdown Body Breakdown Body Parts List Capacitor CoverMotor Cord 12AWG X 3C Resaw Fence Breakdown Warranty Registration CommentsWoodstock international inc. p.o. box Bellingham, wa Warranty