Thermal Arc ULTIMA 150, Руководство по обслуживанию

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Manual 0-2503 41 SECTION 4: REPAIRS & REPLACEMENT
9. Remove the Plasma and Shield Gas Solenoid Fit-
tings from the Solenoids.
10. Remove the two bottom screws securing the Flow
Meters to the Front Panel.
11. Loosen the two top screws securing the Flow
Meters to the Front Panel.
12. Pull the Solenoid assemblies/Flow Meters out the
hole in the Front Panel by tilting the gauge out at
the bottom until the Solenoids will feed through
the hole.
13. Remove Solenoid Assembly from Gas Flow Meter
assemblies by pushing out and dropping down
so the Solenoid can be rotated out.
NOTE
In some cases a 1/8" NPT Close Nipple may be
included as part of the Flow Meter replacement
Assembly. If so, remove the old Close Nipple and
install the new one as part of the Assembly.
14. Install the replacement Assembly by reversing the
above procedure.
E. Main ON/OFF Switch Assembly
Replacement
1. Remove the Enclosure Cover per Section 4.04.
2. Label each wire connected to the terminals of the
Main ON/OFF Switch Assembly.
3. Remove all wiring from the Main ON/OFF
Switch.
4. Remove four (4) screws securing Switch Assem-
bly to the Front Panel and remove Switch Assem-
bly
5. Install the replacement Main ON/OFF Switch As-
sembly by reversing the above procedure.
A-00857
Main ON/OFF Switch
4-20 Main ON/OFF Switch Location
F. Coolant Temperature Switch Replacement
1. Remove the Enclosure Cover per Section 4.04.
2. Unclip the Coolant Temperature Switch from the
side of the Radiator and pull out slightly from unit.
3. Cut off the existing Coolant Temperature Switch
a few inches from the clip end.
In-Line
Filter Assembly
Conductivity
Sensor
Flow Switch
Assembly
Coolant
Reservoir
Wires
Hose
A-00826
4-21 Temperature Switch Assembly Location
4. Attach the new Coolant Temperature Switch wires
(2) to the existing wires (2) using the closed end
Pigtail Splices and a crimping tool.