Thermal Arc ULTIMA 150, Service Manual

Page: 48 / 64

SECTION 4: REPAIRS & REPLACEMENT 42 Manual 0-2503
Coolant Temperature
Switch Assembly
Closed End
Pigtail Splice
A-01107
Figure 4-22 Coolant Temperature Switch
Installation Detail
5. Connect the Coolant Temperature Switch clip to
the side of the Radiator.
6. Replace Enclosure Cover.
4.12 Rear Panel Assembly Parts
Replacement
A. TORCH Connector Shield Gas Fitting
Replacement
1. Remove the Enclosure Cover per Section 4.04.
2. Remove the Shield Gas Supply Hose (yellow) and
Fitting from the rear of the Shield Gas Fitting.
3. Using a snap ring tool remove the Socket Retain-
ing Ring Clip from the Shield Gas Fitting in the
TORCH connector.
4. Pull the fitting out the back of the TORCH Quick
Disconnect Connector.
NOTE
Be careful that the Canted Coil Spring inside the
fitting does not fall out or get turned sideways.
5. Install the replacement Shield Gas Fitting by re-
versing the above steps.
A-00858
Plasma Gas
Supply Fitting
Shield Gas
Supply Fitting
Socket Retaining
Ring Clips
Canted
Coil
Spring
Coolant
Supply Fitting
Coolant
Return
Fitting
Quick
Disconnect
Body
Figure 4-23 TORCH Disconnect Assembly Parts
B. TORCH Connector Plasma Gas Fitting
Replacement
1. Remove the Enclosure Cover per Section 4.04.
2. Remove the Plasma Gas Supply Hose (black) and
Fitting from the rear of the Plasma Gas Fitting.
3. Using a snap ring tool remove the Socket Retain-
ing Ring Clip from the Plasma Gas Fitting in the
TORCH connector.
4. Pull the fitting out the back of the TORCH Quick
Disconnect Connector.
NOTE
Be careful that the Canted Coil Spring inside the
fitting does not fall out or get turned sideways.
5. Install the replacement Plasma Gas Fitting by re-
versing the above steps.