Jet JJP-8BT Operating Instructions And Parts Manual

Also see for JJP-8BT: Specifications Operating instructions and parts manual

Contents

18Basic OperationsDust CollectionBefore initial operation, the machine must beconnected to a dust collector.Important: If a dust collection system is notused, the quality of your cut will suffer severely.Initial StartupAfter the assembly and adjustments arecomplete the planer is ready to be tested. Plugin and start the machine. Keep your finger onthe Stop button in case of a problem. Themachine should run smoothly with little or novibration or rubbing noises. Investigate andcorrect the source of any problems beforefurther operation.DO NOT attempt to inves-tigate or adjust the planer while it is running.Wait until the machine is turned off,unplugged and all working parts have cometo a complete standstill.Always wear ANSI-approvedsafety glasses or goggles when operatingequipment.Changing Mode of OperationWhen changing the operating mode (planer tojointer and back) the machine must be turned off,unplugged, and come to a complete stand-still.To change the mode of operation, see sectionsJointer Setup and Planer Setup on page 12.Jointer OperationsCorrect operating positionThe operator must be positioned offset to theinfeed table (Figure 20).Figure 20Hand placementNever pass hands directlyover the cutterhead.Referring to Figure 20:At the start of the cut, the left hand holds theworkpiece firmly against the infeed table andfence while the right hand pushes the workpiecein a smooth, even motion toward the cutterhead.After the cut is under way, the new surface restsfirmly on the outfeed table. The left hand istransferred to the outfeed side (Figure 18) andpresses down on this part of the workpiece, atthe same time maintaining flat contact with thefence. The right hand presses the workpieceforward and before the right hand reaches thecutterhead it should be moved to the work onthe outfeed table.SurfacingThe purpose of surfacing on a jointer is toproduce one flat surface (Figure 21). The otherside can then be milled to precise, finaldimensions on a thickness planer resulting in aboard that is smooth and flat on both sides andeach side parallel to the other.! If the wood to be jointed is cupped orbowed, place the concave side down, andtake light cuts until the surface is flat.! Never surface pieces shorter than 12 inchesor thinner than 3/8 inch without the use of aspecial work holding fixture.! Never surface pieces thinner than 3 incheswithout the use of a push block.! Cuts of approximately 1/16" or less at a timeare recommended, which provides for bettercontrol over the material being surfaced.More passes can then be made to reach thedesired depth.Figure 21