Porter-Cable 3802L instruction manual Cutting Bowed Material

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CUTTING BOWED MATERIAL

1.If the material is bowed, position it on the table as shown in Fig. 43.

2.If the material is positioned the wrong way (Fig. 44), the workpiece will pinch the blade near the completion of the cut.

CORRECT

Fig. 43

INCORRECT

Fig. 44

One of the many features of the saw is the ease of cutting crown moulding. The following is an example of cutting both inside and outside corners on 52°/38° wall angle crown moulding.

1.Move the table to the 31.62° right miter position and lock the table in position. NOTE: A positive stop is provided to find this angle quickly.

2.Tilt the saw blade to the 33.86° left bevel position and tighten bevel lock handle. NOTE: A triangle indicator is provided on the bevel scale to find this angle quickly.

3.Place the crown moulding on the table with the CEILING EDGE of the moulding against the fence, and make the cut, as shown in Fig. 45.

NOTE: The piece of crown moulding used for the outside corner will always be on the right hand side of the blade, as shown at (A) Fig. 45. The piece of crown moulding used for the inside corner will always be on the left hand side of the blade, as shown at (B) Fig. 45.

4.To make the matching halves of the inside and outside corners, rotate the table to the 31.62° left miter position. NOTE: A positive stop is provided to find this angle quickly. The saw blade is already tilted to the 33.86° bevel position

from the previous cut.

5.Place the crown moulding on the table with the WALL EDGE of the crown moulding against the fence and make the cut. Again, the piece of crown moulding used for the outside corner will always be on the right side of the blade, as shown at (C) Fig. 46. The piece of crown moulding used for the inside corner will always be on the left side of the blade, as shown at (D) Fig. 46.

6.Fig. 47 illustrates the two outside corner pieces; (1) being the piece cut at (A) Fig. 45 and (2) being the piece cut at

(C) Fig. 46.

7.Fig. 48 illustrates the two inside corner pieces; (1) being the piece cut at (B) Fig. 45, and (2) being the piece cut at (D) Fig. 46.

B

 

A

 

 

 

 

 

 

Fig. 45

2

1

C

A

 

Fig. 47

D

 

C

 

 

 

Fig. 46

1

2

B

D

 

Fig. 48

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Contents Manual Español Página FrançaiseTable of Contents Important Safety InstructionsSafety Guidelines Definitions California PropositionGeneral Safety Rules Important Safety InstructionsAdditional Safety Rules for Miter Saws Additional Safety Rules for the LaserExtension Cords Power ConnectionsFunctional Description ForewordCarton Contents AssemblyMoving Cuttinghead to the UP Position Moving Table to the 0 CUT-OFF PositionAttaching Extension Table and Fence Slide Attaching Dust BAG Fastening Machine to Supporting Surface Locking Switch in the OFF PositionOperation Starting and Stopping MachineAdjusting Sliding FIT Between Movable Table and Base Adjusting Fence 90 to BladeAdjusting Sliding Fence Tilting Cuttinghead for Bevel CuttingTable Hazard Zone Adjusting Chip Deflector Adjusting 0 and 45 Bevel Positive StopsAdjusting Sliding FIT Between Cuttinghead ARM and Trunnion Adjusting Sliding FIT Between Trunnion and Bevel BracketAdjusting the Tension of Cuttinghead Return Spring Adjusting Downward Travel of SAW BladeHOW the Lasers Work Adjusting the Dual Laserloc LinesHOW to Check Laser Alignment To Check for Rotational AlignmentDual Laserloc Maintenance To Check for Vertical AlignmentAuxiliary Wood Fence Adjusting Lower Blade GuardTypical Operations and Helpful Hints Cutting AluminumCutting Bowed Material Troubleshooting Crown Moulding Other AnglesWork Support Extensions Maintenance Brush Inspection and ReplacementChanging the Blade Service AccessoriesWarranty PORTER-CABLE Limited ONE Year WarrantyCanadian PORTER-CABLE Delta Service Centers