Jet Tools JMD-15 owner manual Arbor Replacement, Disconnect machine from the power source, unplug

4.Arrange the v-belts (A, Fig. 12) on the pulleys (B, Fig. 12) for the desired speed according to the speed chart (H, Fig. 11) on the belt cover.

5.Tension the v-belts by pushing the motor away from the head casting and locking the motor mount lock lever (F, Fig. 11). Note: Proper tension is achieved when the slack in the belt is taken up and the belt does not slip during operation of the mill/drill.

Arbor Replacement

1.Disconnect machine from the power source, unplug.

2.Release two latches (G, Fig. 11) on the belt cover and slide the pulley guard open (I, Fig. 11).

3.Hold the spindle pulley (B, Fig. 12) to keep the pulley from moving while loosening the drawbar (C, Fig. 12) with a wrench.

4.Loosen the drawbar approximately three to four full turns.

5.Tap the drawbar head with a rubber mallet to dislodge the arbor.

CAUTION

Do not loosen￿the drawbar more than three or four turns before hitting with a rubber mallet. Damage to the drawbar threads may occur.

6. Grasp the arbor with one hand while loosening the draw bar with the other. Continue to loosen the drawbar until the arbor can be withdrawn from the spindle. Wipe out the spindle with a clean dry rag.

7. Wipe down the new arbor with a clean dry rag and place the arbor into the spindle. Thread the drawbar into the arbor. Tighten the drawbar with a wrench while holding on to the spindle pulley.

WARNING

Use caution￿when tightening drawbar! Do not allow hand to get pinched between pulley and belt!

Failure to comply may cause serious injury!

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Note: For best results, all milling operations should be done with the quill/spindle as close to the head assembly as possible. Lock spindle and table in place before starting milling operations.