Powermatic M-1791257 operating instructions Blade Selection

Page 24

If replacement of the blade is not currently an option, the blade lead can be compensated for by skewing the fence. Proceed as follows:

1.Cut a scrap piece of wood about the same length as the band saw table, and joint one edge along its length, or rip it on a table saw to give it a straight edge.

2.Draw a line on the board parallel with the jointed, or straight edge of the board.

3.Move the band saw fence out of the way, and carefully make a freehand cut along your drawn line on the board. Stop about midway

on the board, and shut off the band saw (allow

Figure 34

the blade to come to a complete stop) but do

 

not allow the board to move.

 

4.Clamp the board to the table.

5.Slide the band saw fence over against the board until it contacts the straight edge of the board at some point. Lock the fence down.

6.Loosen the four hex cap screws at the top of the fence (see Figure 3) and shift the fence until it is parallel to the board along its length.

7.Re-tighten the four hex cap screws.

NOTE: Skewing the fence to correct blade lead is effective for that particular blade; when a new blade is installed, the fence will probably need re- adjustment.

Blade Selection

Using the proper blade for the job will increase the operating efficiency of your band saw, help reduce necessary saw maintenance, and improve your productivity. Thus, it is important to follow certain guidelines when selecting a blade.

Here are factors to consider when selecting a blade:

The type of material you will be cutting.

The thickness of the workpiece.

The features of the workpiece, such as bends or curves with small radii.

These factors are important because they involve basic concepts of saw blade design. There are five

(5)blade features that are normally changed to meet certain kinds of sawing requirements. They are:

1.width

2.pitch (number of teeth per inch)

3.tooth form (or shape)

4.the “set” of the teeth

5.the blade material itself

24

Image 24
Contents 20and 24 Band Saws Warranty and Service Warranty PeriodTable of Contents Page Page Page Introduction Specifications 2013Features and Terminology Floor DiagramsContents of the Shipping Container UnpackingAssembly Installing Fence and RailsPage Grounding Instructions Dust CollectionVolt, Single Phase Operation Volt, Three Phase OperationExtension cords Converting from 230 Volt to 460 Volt Three Phase Only Three-Phase Test RunAdjustments Table TiltTable Stop Installing/Changing Blades Blade TensionBlade Tracking Upper Blade Guide Assembly Upper Blade Guides and Upper Support BearingLower Blade Guides and Lower Support Bearing Miter Gauge Belt TensionBlade Speed Adjustment Operating ControlsBelt Alignment General Procedure OperationBrake Pedal Ripping CrosscuttingResawing Blade LeadBlade Selection Width PitchShape Set MaterialMaintenance Tire ReplacementBand Wheel Replacement Blade Selection Guide For Radius CuttingTroubleshooting Operational Problems Trouble Troubleshooting Mechanical and Electrical Problems Replacement Parts Trouble Probable Cause RemedyParts List Saw Body Assembly 2013 Band Saw Index No. Part No Description Size QtyParts List Saw Body Assembly 2415 Band Saw 2415-102ORNSaw Body Assembly 2013 Parts List Table Assembly 2013 Band Saw Index No. Part No Description Size Qty Parts List Table Assembly 2415 Band Saw Index No. Part No Description Size Qty Table Assembly 2013 Parts List Upper Wheel Base Assembly 2013 Band Saw For 2013-3, serial #01062013090 toParts List Upper Wheel Base Assembly 2415 Band Saw For 2415-3, serial #01062415011 toUpper Wheel Base Assembly 2013 Parts List Lower Wheel Base Assembly 2013 Band Saw ST 18AWG Parts List Lower Wheel Base Assembly 2415 Band Saw 2013-459 Limit Switch Cord not shown Lower Wheel Base Assembly 2013 Parts List Guide Bracket Assembly 2013 Band Saw Index No. Part No Description Size Qty Parts List Guide Bracket Assembly 2415 Band Saw Index No. Part No Description Size Qty Guide Bracket Assembly 2013 Motor Band Saw onlyMagnetic Switch Electrical Connections 230 Volt, 3 Phase Models 2013 Electrical Connections 460 Volt, 3 Phase Models 2013 This page intentionally left blank This page intentionally left blank