Dentsply Sirona Cavitron 300 Series, Руководство по обслуживанию

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4. Use an appropriate tool and carefully remove
the blown fuse.
5. Replace the fuse(s) with the specified current
rating and voltage as indicated on the fuse label.
Be sure the fuse(s) are securely retained by the
clips.
6. On the back of the cover assembly, plug the two-
wire connector into J1 and the 5-wire connector
into J2 from the FPGA PC board. Ensure the two
wire harnesses are tied together with a nylon
cable tie.
7. Align and place cover assembly on the scaler unit.
8. Plug the power cord into the power entry module.
9. Reconnect the blue water hose to the push-lock
water fitting.
10. Power up the unit using the power rocker switch
and test unit operation.
11. Calibrate and final test the Cavitron ® 300 Series
Scaler using the Dentsply Sirona Preventive -
Product Service Standard Operating Procedure,
PS-00211.
12. Align the Cover on the Bottom Housing and
securely fasten the four (4) #6 x 1/2" Hi-Lo Torx
screws using a screwdriver.
D. Power Switch Replacement:
1. Follow the steps above in Section A for “Top Cover
Removal.”
2. Ensure that the power cord has been unplugged
from the rear power entry module.
3. Unplug the four (4) wire terminals from either side
of the power switch.
4. Press the tabs on both sides of the switch to allow
it to slide out of the back support panel.
5. Install the replacement switch in the opening. The
“OFF” (0) side of the switch must be on the left
side as you face the back of the scaler. Ensure the
switch is fully seated in the opening.
6. Reconnect the terminal wires. The two black wires
should be on the top terminals and the two white
wires should be on the bottom terminals. The
wires with the Toroid should be connected on the
right side. The terminals must be fully seated.
7. On the back of the cover assembly, plug the two-
wire connector into J1 and the 5-wire connector
into J2 from the FPGA PC board. Ensure the two
wire harnesses are tied together with a nylon
cable tie.
8. Align and place cover assembly on the scaler unit.
9. Plug the power cord into the power entry module.
10. Reconnect the blue water hose to the push-lock
water fitting.
11. Power up the unit using the power rocker switch
and test unit operation.
12. Calibrate and final test the Cavitron ® 300 Series
Scaler using the Dentsply Sirona Preventive -
Product Service Standard Operating Procedure,
PS-00211.
13. Align the Cover on the Bottom Housing and
securely fasten the four (4) #6 x 1/2" Hi-Lo Torx
screws using a screwdriver.
E. Power Entry Module Replacement:
1. Follow the steps above in Section A for “Top Cover
Removal.”
2. Ensure that the power cord has been unplugged
from the rear power entry module.
3. The power switch must be removed to gain access
to the Power Entry module.
4. Unplug the four (4) wire terminals from either side
of the power switch.
5. Press the tabs on both sides of the switch to allow
it to slide out of the back support panel.
6. The chassis assembly must also be removed to
gain access to the Power Entry module.
7. Unscrew the three (3) #6 x 1/2" Hi-Lo Torx screws
on the Mounting Plate Sub-assembly at the front
corners and back left corner.
8. Unscrew the #6 x 1/2” Hi-Lo Torx ground wire
screw on the water regulator/solenoid bracket.
9. Unplug the four (2-red & 2-black) wire connector
on the front of the power supply PC board
assembly.
10. Unplug the eight (4-white, 2-red, green & black)
wire connector from the front of the lower PSOC
PC board assembly.
Switch wire
terminal
positions –
Black terminals
on top