Adjustments; Changing Spindle Speeds - Jet JMD-15 Operating Instructions And Parts Manual

Motor Mount Lock Lever: (A, Fig. 9)
Located on the right side of the head casting.
Locks and unlocks the motor mounting plate
enabling the user to tension v-belts.
Head Pivot Lock: (B, Fig. 9)
Located on the right rear of the head casting.
Loosen two hex nuts to rotate the head 360°.
Tighten two hex nuts to lock the head in
position.
On-Off Switch: (C, Fig. 10)
Turns spindle on and off, and changes spindle
direction. Allow the spindle to come to a stop
before reversing rotation.
Quill Lock Handle: (D, Fig. 10)
Located on the front left of the head casting.
Turn clockwise to lock the quill in the desired
position. Turn counter-clockwise to release.
Head Elevating Crank Handle: (E, Fig. 10)
Located at left rear of head casting.
head pivot lock nuts (B, Fig. 9) and turn handle
clockwise to raise head on the column and
counter-clockwise to lower head.
This machine is designed
and intended for use by properly trained and
experienced personnel only. If you are not
familiar with the proper and safe use of
mill/drills, do not use this machine until
proper training and knowledge have been
obtained. Failure to comply may cause
serious injury.

12.0 Adjustments

12.1 Changing Spindle Speeds

1. Disconnect the machine from the power
source, unplug.
2. Loosen the motor mount lock lever (F, Fig,
11) and pull the motor toward the head
casting to release tension on the v-belts.
3. Release two latches (G, Fig. 11) on belt
cover and slide pulley guard open (I, Fig.
11).
Loosen
10