Porter-Cable 28-306 instruction manual Operating the Band SAW, Cutting Curves

Page 15

OPERATING THE BAND SAW

DISCONNECT MACHINE FROM POWER SOURCE.

Before starting the machine, make all adjustments and put all guards in place. Turn the upper wheel clockwise by hand to be sure that everything is correct before providing power to the tool.

Keep the top guide close to the work. Do not force the material against the blade. Light contact with the blade will permit eas- ier following of the line and will prevent excess friction, heating, and work-hardening of the blade at its back edge.

Keep the saw blade sharp and very little pressure will be required for average cutting. Avoid twisting the blade by turning abrupt corners.

CUTTING CURVES

When cutting curves, turn the stock carefully so that the blade may follow without being twisted. If a curve is so abrupt that repeated new kerfs are needed, then use either a narrower blade or one that has more set. The more set a blade has, the easier the stock is to turn. However, the cut is usually rougher than when using a medium set.

When withdrawing the blade, be careful not to draw the blade off of the wheels. In most cases, it is easier and safer to turn the workpiece and saw out through waste material. Do not back the blade out while the saw is running.

SUGGESTED METAL CUTTING BLADES AND SPEEDS

MATERIAL

STEELS

Angle Iron

Armor Plate

Carbon Steel Chromium Steel Cold Rolled Steel Drill Rod Graphite Steel Hidfh speed Steel Machinery Steel Molybenium Steel Nickel Steel Silicon Manganese Stainless Steel Structural Steel Tungsten Steel

FOUNDRY METALS Brass-hard and soft Bronze – Aluminum Bronze – Manganese Bronze _ Naval Bronze – Phosphorus Cast Iron – Gray Cast Iron – Malleable Cast Steel

Copper – Beryllium Gunnite Meehanite Monet

Nickel – Cold Rolled Nickel Silver Silver

NON-METALS

Bakelite

Cork

Fibre

Hose –Canvas, Rubber

Hose – Mettalic

Mica

Plastics

Porcelain

Slate

Transite

UNDER ¼”

 

 

 

1/ TO ¾”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEETH

 

FPM

TEETH

 

PER

 

 

 

 

PER

 

INCH

 

 

 

 

INCH

 

24

 

160

 

14

 

18

 

40

 

14

 

24

 

85

 

14

 

24-18

 

85

 

14

 

24-18

 

220

 

14

 

14

 

85

 

14

 

18

 

60

 

14

 

24

 

85

 

14

 

18

 

160

 

14

 

18

 

85

 

14

 

18

 

40

 

14

 

18

 

85

 

14

 

24

 

40

 

14

 

24

 

160

 

14

 

18

 

40

 

14

 

18

 

335

 

14

 

18

 

335

 

14

 

18

 

160

 

14

 

18

 

160

 

14

 

18

 

335

 

14

 

18

 

115

 

14

 

18

 

160

 

14

 

18

 

160

 

14

 

18

 

160

 

14

 

24

 

335

 

18

 

18

 

160

 

14

 

18

 

115

 

14

 

14

 

60

 

10

 

18

 

220

 

14

 

24

 

220

 

18

 

10

 

335

 

10

 

10

 

3000

 

10

 

14

 

3000

 

10

 

10

 

3000

 

 

 

24

 

220

 

 

 

24

 

335

 

18

 

14

 

3000

 

14

 

24

 

160

 

18

 

24

 

335

 

18

 

24

 

335

 

18

 

 

 

 

 

 

 

 

1 “AND UP

FPM

TEETH

FPM

 

PER

 

160

INCH

 

 

 

40

10

40

60

14

40

60

14

40

220

14

160

60

 

 

40

14

40

60

14

40

160

14

160

60

14

40

40

14

40

85

14

60

40

10

40

160

14

115

40

10

40

335

10

335

335

14

335

115

14

85

115

14

85

335

14

220

85

10

60

115

14

85

115

14

85

85

10

40

220

14

160

115

10

85

85

10

60

40

10

40

220

14

220

220

14

220

220

10

160

3000

10

3000

3000

10

3000

220

14

220

3000

10

3000

115

 

 

220

14

160

220

14

85

 

 

 

 

 

 

15

Image 15
Contents Metal/Wood Cutting Band Saw Safety Guidelines Definitions General Safety RulesSAVE! Important Safety Instructions Save Stay ALERT, Watch What YOU are Doing Failure to Follow These Rules MAY Result in Serious Injury Additional Safety Rules for Band SawsPower Connections Motor SpecificationsGrounding Instructions Unpacking and Cleaning Extension CordsForeword Carton Contents Optional StandAttaching Motor to Optional Stand Attaching Motor Pulley Attaching Band SAW to the Optional StandDisconnect Machine from Power Source Attaching the SwitchTilting the Table Adjusting the Table StopStarting and Stopping SAW Table InsertTracking the Blade Adjusting Blade TensionAdjusting the Upper Blade Guides and Blade Support Bearing Vertical Adjustment of the Upper Blade Guide AssemblyChanging Speeds Adjusting Lower Blade Guides and Blade Support BearingBelt and Pulley Arrangements for ALL Eight Available Speeds Troubleshooting GuideTrouble CUT does not Agree with Setting on the Tilt Scale Cutting Curves Operating the Band SAWSuggested Skip Tooth Blades and Speeds Band SAW BladesLubrication Changing the BladesAccessories PARTS, Service or Warranty AssistanceTwo Year Limited New Product Warranty Canadian PORTER-CABLE Delta Service Centers