Jet JWL-1840DVR, Operating Instructions And Parts Manual

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Figure 7-11: spindle lock and face plate
7.13 Face plate: Installing/removing
1. Disconnect lathe from power source.
2. Mount face plate to your workpiece.
3. Engage spindle lock.
4. Install face plate onto threads of headstock
spindle and rotate clockwise as far as it will go.
5. Tighten both set screws in face plate. Face
plate is now ready for turning.
Make certain set screws in
face plate are tight before reversing lathe
spindle rotation.
6. To remove face plate, engage spindle lock.
Loosen both set screws in face plate, and
turn face plate counterclockwise with face
plate wrench to loosen.
7.14 Checking center alignment
When headstock is returned from outboard
position, the alignment between centers should be
checked.
1. Lock headstock in normal spindle turning
position.
2. Slide tailstock toward headstock until centers
almost touch (see Figure 7-12). Lock tailstock
in position.
Figure 7-12: center alignment
3. View the center points from top and side to
make sure they align.
4. If centers do not align, unlock headstock and
pivot it slightly. There should be enough “play”
in headstock to adjust for this alignment. Lock
headstock when finished.
7.15 Speed Range Adjustment (JWL-
1840EVS only)
See Figure 7-13.
1. Disconnect lathe from power source.
2. To change speed range, open access door on
headstock.
3. Loosen pivot lock handle (A, Figure 7-13) and
lift up tension handle (B) to raise motor.
Tighten pivot lock handle (A) to hold motor in
raised position.
4. There should be sufficient slack in the belt to
reposition it to the other steps on the sheaves.
The label on access door shows required belt
position (also shown in Figure 7-14).
5. Loosen pivot lock handle (A) and lower motor
to tension belt. Be sure that Poly-V grooves of
belt seat properly in corresponding groove of
sheave. Do not over-tension; a very light
pressure on tension handle (B) is adequate to
prevent belt slippage.
6. Tighten pivot lock handle (A) and close access
door.
Figure 7-13: speed range adjustment
Figure 7-14