Jet JTM-1050EVS2, Operating Instructions And Parts Manual

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17
9.17
Draw bar operation – changing
tooling
1. Using the provided wrench, loosen draw bar two or
three turns (turn counterclockwise) using draw bar
hex (Figure 14).
Figure 14
2. Tap the top of draw bar with a soft-faced hammer to
loosen collet from taper.
3. Remove tool from collet.
4. Insert new tool into collet.
5. Tighten draw bar firmly using provided wrench. Turn
draw bar. The tool is now ready for use.
9.18
Clamping workpiece to table
The worktable has 5/8-inch T-slots for clamping
workpiece to table.
1. Set motor switch to STOP position.
2. Place workpiece on table.
3. Clamp workpiece using T-slot clamps, studs, and
step blocks as required (Figure 15).
Figure 15
10.0
Adjustments
10.1
Mill head – left/right adjustment
Make sure machine base is secured
to floor before repositioning mill head. The center of
gravity can shift enough to cause machine to tip over,
resulting in serious injury to operator and damage to
machine.
1. Loosen four large hex nuts that secure the mill head
to the ram adapter (refer to Figure 16). 1/4 turn
should be sufficient to allow head to move.
NOTE
: For angles greater than 10 degrees, use your
free hand to support the mill head, taking some
weight off the brass worm gears. Doing so will greatly
lengthen the life of the worm gears.
Figure 16
2. Turn worm nut (B, Figure 18) to tilt head left or right
as required. Use scale on ram adapter to set desired
angle.
3.
Note:
The scales on the ram adapter and for head
rotation are guides only. Close tolerance work will
require use of a dial indicator to make sure head is
90° to table in X and Y axis. Please note the table is
fitted to be slightly higher in front, usually about
0.0005”.
Be sure to apply torque in two
steps using a crossing pattern. Failure to do so
could distort the face of the ram adapter.
4. Tighten the four hex nuts. Tighten in two steps using
a calibrated torque wrench. Use a crossing pattern
to tighten the nuts. Tighten initially to 25 foot-pounds.
5. Before applying final torque, check to make sure mill
head is perpendicular to work table.
6. Set up a dial indicator in a collet and secure using the
draw bar (refer to Figure 18).
7. Put spindle drive in neutral.