Delta SA446 instruction manual Assembly Instructions, Adjusting Belt Tension

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ASSEMBLY INSTRUCTIONS

WARNING: FOR YOUR OWN SAFETY, DO NOT CONNECT THE SANDER TO THE POWER SOURCE UNTIL THE MACHINE IS COMPLETELY ASSEMBLED AND YOU READ AND UNDERSTAND THE ENTIRE OWNERS MANUAL.

ADJUSTING BELT TENSION

Your sander was shipped from the factory with the drive belt (A) Fig. 2, assembled to both pulleys (B) and (C). Before assembling the machine, check and adjust the belt tension as follows:

1.Loosen screw (D) Fig. 2, with the 6mm hex wrench, and move sanding arm (E) to the vertical position to expose belt tensioning screw (F) Fig. 3, and locknut (G).

2.Check to see if the belt (A) Fig. 4, is tensioned properly by applying light pressure to the belt at the center span of the pulleys as shown. NOTE: THERE

SHOULD BE APPROXIMATELY 1/4 INCH DEFLEC- TION IN THE BELT (A) AT THE CENTER SPAN OF THE PULLEYS USING LIGHT FINGER PRESSURE. THE BELT DOES NOT REQUIRE EXCESSIVE TENSION TO FUNCTION PROPERLY.

3.If an adjustment is necessary, loosen locknut (G) Fig. 4, and tighten or loosen adjusting screw (F), with 6mm hex wrench, until correct tension is obtained. Then tighten locknut (G).

4.After belt tension is checked and adjusted if neces- sary, move the sanding arm to the horizontal position.

DE

B

A

C

Fig. 2

F

G

Fig. 3

A

F

G

Fig. 4

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Contents Belt / 6 Disc Sander General Safety Rules Refer to them often Use them to instruct others Additional Safety Rules for Belt / Disc SandersPower Connections Extension Cords Unpacking and CleaningSander Parts Belt / 6 Disc Sander PartsAdjusting Belt Tension Assembly InstructionsAssembling Sanding Disc Plate Assembling Belt Pulley GuardAssembling Lower Cover for Sanding Disc Assembling Sanding DiscAssembling Disc Sander Table Assembling Dust Chute Fastening Sander to Supporting SurfaceAssembling Backstop to Sanding ARM Starting Stopping Sander Operating Controls AdjustmentsTracking Sanding Belt Locking Switch OFF PositionChanging Position of Sanding ARM Adjusting Table Square with Sanding Disc Adjusting Backstop Square With Sanding BeltTilting the Table Miter Gage Adjusting Miter Gage Slot Parallel with Sanding DiscWrench Storage Dust ChuteReplacing Sanding Disc Replacing Sanding BeltSurfacing or Edge Sanding With Sanding Belt OperationEND Sanding With the Disc Sanding Inside CurvesSanding Outside Curves END Sanding With the BeltPage Two Year Limited Warranty Accessories PARTS, Service or Warranty Assistance