Jet J-4421-2, Инструкция по эксплуатации и каталог запасных частей

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4. Reestablish power to the service branch for
the grinder.
5. Turn on the grinder using the ON/OFF switch
and observe the direction of rotation of the
drive disc. It should be turning CLOCKWISE
when viewed from the front. If it is turning
clockwise, the grinder is correctly connected
and can be placed in service. If the disc is not
turning clockwise, the electrical connections
are hooked up backward and need to be
corrected.
Figure 2: Service wiring diagram
6.2 To correct disc rotation
1. Disconnect and lock out power to the service
branch for the grinder.
2. Switch any two of the three power wires to the
machine service cable.
3. Re-establish power in the service branch and
turn the grinder ON, again. The drive disc
should now be rotating in a clockwise direction
and the machine can be released for service.
6.3 Changing service voltage
As indicated in the previous section, the grinder is
shipped wired for the voltage specified on the
customer order. If you decide to change the
voltage in the service branch to the grinder (from
220 to 440 volts, or 440 to 220 volts) the electrical
connections inside the motor must be changed to
reflect the change in voltage, and the LVP switch
cut-out coil must also be changed to reflect the
new voltage requirement.
6.4 Replacing the LVP switch cut-out
coil
1. Be certain the power in the service branch to
the machine is disconnected and locked out.
2. Open the switch case by removing the two
cover screws.
3. Locate the cut-out coil which is under the
switch. See Figure 3 for position and
removal/installation motion.
Figure 3: Cut-out coil removal and replacement
4. The cut-out coil is a "snap fit" under the switch
mechanism, and is removed by pushing it to
the rear of its mount and snapping it out of its
retainer.
5. Remove the connectors which secure the coil
to the switch mechanism.
6. Connect the new cut-out coil to the switch at
the same connectors as the removed coil.
7. Insert the new coil by pushing it to the back of
its seat and snapping it into position under its
retainers.
8. Reinstall the switch cover to the switch base
using the two retainer screws.
9. Proceed to the next step – changing the motor
connections.
6.5 Changing motor connections
10. Again, be certain the power in the service
branch to the machine is disconnected and
locked out.
11. Open the electrical connection cover plate on
the motor.
12. A wiring diagram for the motor is shown in
Figure 4, and will also be on a label
underneath the motor plate cover.
13. Switch the connectors inside the motor to meet
the voltage requirements for the service
branch supplying the motor.
14. Close the motor plate cover and secure it shut
with its screws.
15. Reconnect power to the service branch and
turn ON the grinder to verify that it runs
correctly, and that the disc turns
counterclockwise.