Jet J-2221VS, Operating Instructions And Parts Manual

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11
Emergency Stop Pushbutton Switch
The mushroom shaped EMG. STOP pushbutton
switch provides a quick means of stopping the
drive motor. To reset the pushbutton switch, the
knob is turned clockwise (as shown on the face
of the knob).
RPM Display
The spindle speed display shows the spindle
RPM selected by the speed control knob.
Spindle Speed Knob
The SPINDLE SPEED knob is used to set the
desired spindle speed (clockwise increases).
Spindle Selector
The SPINDLE selector switch is used to set the
desired direction of spindle rotation. The REV.
(reverse) setting will provide counterclockwise
rotation. The FOR. setting will provide clockwise
rotation.
Drilling Speed Chart
A DRILLING SPEED CHART is provided on the
front panel. The chart can be used to select the
speed required for various drill sizes (0.196 inch
to 1.000 inch — 5 mm to 25 mm) and materials
(steel, cast iron, aluminum, and copper). The
chart defines spindle speeds from 300 to 2000
RPM.
Depth Indicator — All Models
Refer to Figure 6.
Figure 6
A drilling depth indicator is provided on the front
of the drill head. The indicator can be set for
depths up to 6.5 inches (16.5 mm). A knurled
knob is provided at the front, underside of the
head. Before starting the motor, set the end of
the drill against the surface into which the hole is
to be drilled. The indicator is zeroed out using
the knurled knob. The motor is started and the
hole drilled until the indicator pointer reaches the
desired depth.
Maintenance
Replacement of Drive Belt
Make sure to disconnect
electrical power to the drill press to avoid the
possibility of inadvertent operation and
exposure to potentially lethal voltage levels.
Manual Speed Control (Models J-2221VS and
J-2223VS)
1. Start drill press. Set speed control to highest
speed. Stop drill press.
2. Disconnect electrical power by setting drill
press circuit breaker to OFF.
3. Remove head cover.
4. Remove belt. (With speed control setting at
the highest speed, the belt should be loose
enough to remove.)
5. Install the replacement belt. Install the head
cover.
6. Set the drill press circuit breaker ON.
7. Operate the drill press to verify correct
operation.
Inverter Speed Control (Models J-2232AC and
J-2234AC)
1. Disconnect electrical power by setting drill
press circuit breaker to OFF.
2. Remove pan screws from small cover
(around column). Remove pan screws and
eight bolts from head cover.
3. Loosen set screw and remove shift lever.
4. Remove plastic spindle cup.
5. Remove head cover. Leave small cover in
place.
6. Disconnect electrical wiring from motor
junction box. Remove motor from mounting
plate.
7. Remove motor mounting plate.
8. Remove three screws from pulley covers
(discs). Remove used belt. Install the
replacement belt.