Jet JMD-15 Owner's Manual

Also see for JMD-15: Operator's manual Owner's manual Operating instructions and parts manual

Contents

114. Arrange the v-belts (A, Fig. 12) on thepulleys (B, Fig. 12) for the desired speedaccording to the speed chart (H, Fig. 11) onthe belt cover.5. Tension the v-belts by pushing the motoraway from the head casting and locking themotor mount lock lever (F, Fig. 11). Note:Proper tension is achieved when the slack inthe belt is taken up and the belt does not slipduring operation of the mill/drill.Arbor Replacement1. Disconnect machine from the powersource, unplug.2. Release two latches (G, Fig. 11) on the beltcover and slide the pulley guard open (I, Fig.11).3. Hold the spindle pulley (B, Fig. 12) to keepthe pulley from moving while loosening thedrawbar (C, Fig. 12) with a wrench.4. Loosen the drawbar approximately three tofour full turns.5. Tap the drawbar head with a rubber malletto dislodge the arbor.Do not loosen the drawbarmore than three or four turns before hittingwith a rubber mallet. Damage to the drawbarthreads may occur.6. Grasp the arbor with one hand whileloosening the drawbar with the other.Continue to loosen the drawbar until thearbor can be withdrawn from the spindle.Wipe out the spindle with a clean dry rag.7. Wipe down the new arbor with a clean dryrag and place the arbor into the spindle.Thread the drawbar into the arbor. Tightenthe drawbar with a wrench while holding onto the spindle pulley.Use caution when tighteningdrawbar. Do not allow hand to get pinchedbetween pulley and belt. Failure to complymay cause serious injury.Note: For best results, all milling operationsshould be done with the quill/spindle as close tothe head assembly as possible. Lock spindleand table in place before starting millingoperations.