Jet JWTS-10JF Operating Instructions And Parts Manual

Jet JWTS-10JF Operating Instructions And Parts Manual Manual pdf 27 page image

27Have the blade extend only 1/8" above the top ofthe workpiece. Exposing the blade above thispoint can be hazardous.Figure 45Dado Cutting – Dadoing is cutting a widegroove into a workpiece or cutting a rabbetalong the edge of a workpiece. A dado insert,shown in Figure 46, is necessary for this type ofoperation.Do not use the standard tableinsert for dadoing operations.Figure 46The process of cutting 1/8" to 13/16" grooves inworkpieces is accomplished by the use of astacked dado blade set or an adjustable typeblade mounted on the saw arbor. By usingvarious combinations of the stacked dadoblades, or properly setting the dial on anadjustable blade, an accurate width dado can bemade. This is very useful for shelving, makingjoints, tenoning, etc. The guard, splitter, andanti-kickback pawls supplied with the sawshould be used for all cutting operations wherethey can be used. When performing operationswhere the guard can not be used, as in somedadoing operations, alternative safetyprecautions should be taken. These includepush sticks, feather boards, filler pieces, fixtures,jigs and any other appropriate device that canbe utilized to keep operator's hands away fromthe blade. Upon completion of the operationrequiring removal of the guard, the entire guardassembly must be placed back on the machinein its proper working order.Never use a dado head in atilted position. Never operate the saw withoutthe blade guard, splitter and anti-kickbackpawls for operations where they can beused.Safety DevicesFeather BoardThe feather board (Figure 47) should be madeof straight grain hardwood approximately 1" thickand 4" to 8" wide depending on the size of themachine. The length is developed in accordancewith intended use. Feather boards can befastened to the table or rip fence by use ofC-clamps. Alternatively, drilled and tapped holesin the table top allow the use of wing nuts andwashers as a method of clamping. If this methodof fastening is used, provide slots in the featherboard for adjustment. (The illustration shows amethod of attaching and use of the featherboard as a vertical comb. The horizontalapplication is essentially the same except thatthe attachment is to the table top.)Figure 47