Porter-Cable 3807 Using SAW AS a C H O P S AW, Dado Cutting, Cutting Crown Moulding

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B

A

Fig. 45

Fig. 46

USING SAW AS A C H O P S AW

When cutting material that is narrow enough to allow the saw blade to cut through in a chopping motion (similar to a conventional miter saw) instead of sliding the saw blade through the workpiece, the sliding action of the saw must be locked in the rear position, as shown in Fig. 45, by tightening lock knob (A). The cuttinghead (B) is pushed straight down to make the cut. After the cut is completed, release the switch trigger and let the blade come to a complete stop before returning the cuttinghead to the up position.

DADO CUTTING

Dado cutting can easily be accomplished with your compound slide saw, as shown in Fig. 46, using a single saw blade and moving the workpiece sideways the width of the saw blade after each cut. The cut is made in the conventional way as explained in the section CORRECT OPERATING PROCEDURE and the downward travel of the saw blade is adjusted for the depth of the dado as explained in the section ADJUSTING DOWNWA R D TRAVEL OF SAW BLADE.

CUTTING CROWN MOULDING

One of the many features of your saw is the ease of cutting crown moulding. The following is an example of cutting both inside and outside corners on 5238 degree wall angle crown moulding.

NOTE: When cutting 45 degree wall angle crown moulding, the following procedure for inside and outside corners is the same with the exception that the bevel position will always be at 30 degrees and the miter position will be 3514 degrees to the right or left.

1.Move the table to the 3158 degree 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 3378 degree 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. 47.

A E

B

C

E

D

Fig. 47

Fig. 48

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Contents Compound Read and Follow ALL Instructions Important Safety InstructionsAdditional Safety Rules for Compound Slide Miter SAW S Extension Cord Selection Replacement PartsWhen servicing use only identical replacement parts To RPacking Power ConnectionsOperating Instructions R E W O R DRaising the Cuttinghead Moving Cuttinghead To the Rear PositionAssembly Assembling Dust Elbow and Dust BAGMoving Table to the 0 Degree CUT-OFF Position Rotating Table For Miter Cutting Locking Switch in the OFF PositionAssembling Work Clamp Starting and Stopping MachineAdjusting Sliding FIT Between M O Vable Table and Base Adjusting Fence 90 Degrees to BladeTable Hazard Area Work Clamp Operation Tilting Cuttinghead for Bevel CuttingIs in the up position as shown Adjusting 90 and 45 Degree Bevel Positive STO P S Adjusting Sliding FIT Between Trunnion and Bevel BracketAdjusting Downward Travel SAW Blade Adjusting Blade GuardAdjusting the Tension of Cuttinghead Return Spring Adjusting Sliding FIT Between Cuttinghead ARM and TrunnionFastening the SAW to a W O R K B E N C H Using the SAW on SAW HorsesUsing SAW with 4 Extensions To O L STO R a G ECorrect Operating Procedure for Slide Cutting E R AtionBut do not turn the saw on at this time Using SAW AS a C H O P S AW Dado CuttingCutting Crown Moulding Changing the Blade MaintenanceBrush Inspection and Replacement Foreign substanceFlats on the arbor Keep to O L Clean Service and RepairsFailure to Start Delta Service Centers