Porter-Cable 3700L instruction manual Cutting Aluminum, Cutting Bowed Material, Right, Wrong

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CUTTING ALUMINUM

Aluminum extrusions such as used for making aluminum screens and storm windows can easily be cut with your compound miter saw. When cutting aluminum extrusions, or other sections that can be cut with a saw blade and are within the capacity of the machine, position the material so the blade is cutting through the smallest cross-section (Fig. 35). The wrong way to cut aluminum angles is illustrated in Fig. 36. Be sure to apply

BLADE

FENCE

RIGHT

a stick wax to the blade before cutting aluminum stock. This stick wax is available at most industrial mill supply houses. The wax provides proper lubrication and keeps chips from adhering to the blade.

NEVER APPLY LUBRICANT TO THE BLADE WHILE THE MACHINE IS RUNNING.

CUTTING BOWED MATERIAL

FENCE

Fig. 35

BLADE

When cutting flat pieces, first check to see if the material is bowed. If it is, make sure the material is positioned on the table as shown in Fig. 37.

If the material is positioned the wrong way, as shown in Fig. 38, the workpiece will pinch the blade near the completion of the cut.

RIGHT

Fig. 37

WORK SUPPORT EXTENSIONS

For support when cutting long pieces, construct a work support extension. Fig. 39 illustrates the miter saw mounted on two standard 2 x 4’s (A). Fasten the four mounting legs (two of which are shown at (B) Fig. 39 to the 2 x 4’s, using four screws (not supplied) through the four holes in the mounting legs. The length of the 2 x 4’s (A) can vary, depending on the workpiece.

NOTE: Ensure that the top of the support 2 x 4’s (C) are level with the miter saw table. This is critical because the distance from the top of the 2 x 4’s (A) to the miter saw table varies from saw to saw. In most cases, standard 2 x 4’s (C) can used. If these are too high, cut them to fit. If the 2 x 4’s are too low, use 2 x 6’s. If these are high, cut them to the correct height.

WRONG

Fig. 36

WRONG

Fig. 38

C

A

 

B

 

 

 

Fig. 39

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Contents Manual Español Página FrançaiseTable of Contents Important Safety InstructionsSafety Guidelines Definitions California PropositionGeneral Safety Rules Important Safety InstructionsNever Recut Small Pieces Additional Safety Rules for Miter SawsAdditional Safety Rules for the Laser Do not Perform FREE-HAND OperationsPower Connections Motor SpecificationsGrounding Instructions Carton Contents Functional DescriptionAssembly Tools Required AssemblyUnpacking and Cleaning Assembly Time EstimateAttaching Extension Table and Fence Slide Attaching the Dust BAG Locking Switch in the OFF PositionOperation Fastening Machine to Supporting SurfacePositive Stops Disconnect the Machine from the Power Source Adjusting the Fence 90 to the BladeDisconnect the Machine from Power Source Rotating the Table for Miter CuttingAdjusting Sliding Fence Tilting Cuttinghead for Bevel CuttingTable Hazard Zone Adjusting the Tension of Cuttinghead Return Spring Adjusting Sliding FIT Between Cuttinghead ARM and TrunnionAdjusting 0 and 45 Bevel Positive Stops HOW to Check Laser Alignment Adjusting Downward Travel of SAW BladeLaser USE and Adjustment HOW the Lasers WorkTo Check for Rotational Alignment To Check for Vertical AlignmentAdjusting Lower Blade Guard Typical Operations and Helpful HintsAuxiliary Wood Fence General Cutting OperationsRight Cutting AluminumCutting Bowed Material WrongCrown Moulding Other Angles Cutting Crown MouldingTroubleshooting Maintenance Disconnect Machine from Power SourceChanging the Blade Service AccessoriesWarranty PORTER-CABLE Limited ONE Year WarrantyCanadian PORTER-CABLE Delta Service Centers