GM 52484737
Expansion Valve

The first step to replace the thermal expansion valve (TXV) in the auxiliary system is to remove the Evaporator core followed by gently removing the sealer from around the txv. To detach the capillary tube clip from the Evaporator core start by recording its position and orientation. Disconnect both Evaporator tube connections from the txv after which you should pull out the txv from the core. Position the txv on the core and connect the Evaporator tube connections properly to the txv before tightening them to 28 n.m (21 lb ft) following the fastener notice in service precautions. Reinstall the clip to keep the capillary tube attached to the Evaporator core using the mounting location that was observed when taking it apart. The last step includes placing txv sealer around the fitting just like the initial setup before reattaching the Evaporator core.

The first step to replace the auxiliary air conditioning A/C Expansion Valve is to remove the Evaporator core. Carefully lift out the sealer which surrounds the A/C Expansion Valve while taking notes about the tube position as well as its orientation on the core. First disconnect the Evaporator tube connections from the A/C Expansion Valve then remove the clip retaining the capillary tube to the Evaporator core before removing the A/C Expansion Valve from the core. Installation of the A/C Expansion Valve requires core attachment after following the recommended fastener procedures. After attaching the Evaporator tube connections to the A/C Expansion Valve users should tighten them to 28 nm (21 lb ft). Next install a clip for retaining the capillary tube to the Evaporator core. Reinstall the Evaporator core after you perform the noted A/C Expansion Valve sealer application from disassembly.

The first step to change the thermal expansion valve (TXV) in the auxiliary system requires Evaporator core removal followed by careful stripping of the txv sealer while keeping track of tube positioning on the core. Begin by taking away the clip which keeps the capillary tube attached to the Evaporator core and cut off the Evaporator tube connections from the txv before extracting the txv from the core. Installation requires the txv to be installed onto its core position after following all instructions from the fastener notice section in service precautions and performing a proper connection of Evaporator tubes to the txv by using 28 n.m (21 lb ft) torque values. The tube and clip installation must follow the original position noted in the disassembly phase before applying the clip to secure the tube onto the Evaporator core. After reattaching the Evaporator core, use the sealer material in the same way it was during disassembly.

The process to replace the thermal expansion valve in the auxiliary system begins with Evaporator core removal requiring a careful record of tube mounting position on the core. Lift off the sealer materials surrounding the txv before unclipping the tube-attachment point between capillary and Evaporator core. The Evaporator tube connections should be unfastened from the txv before removing the txv from the core. Install the txv by placing it on the core followed by connecting the Evaporator tube links to the valve while torquing them to 28 n.m (21 lb ft). When reinstalling the clip follow the exact arrangement of installation that corresponded with the disassembly process. Specifically reinstall the Evaporator core after you connect the capillary tube to the Evaporator core using the clip and apply pack sealer in the same configuration observed during disassembly.

The replacement process of the auxiliary air conditioning Evaporator A/C Expansion Valve requires removing the Evaporator core first. Unpack the sealer material surrounding the A/C Expansion Valve (TXV) by using gentle force while recording its position on the core regarding the tube orientation. After detaching the clip which holds the capillary tube to the Evaporator core, disconnect the tube connections of the Evaporator from the txv to extract the txv from the core. Installation requires the attachment of the txv to the core with precautions needed for fastener use. The technician installs the Evaporator tube connections to the txv before tightening them to 28 nm (21 lb ft) while applying a clip to hold the capillary tube against the Evaporator core. Seal the txv with pack material following the same procedure that was used during removal and replace the Evaporator core in the system.

Begin the thermal expansion valve replacement in the auxiliary system by removing the Evaporator core followed by a gentle seal removal procedure around the txv where the mounting position and tube orientation on the core need to be noted. After you remove the capillary tube clip from the Evaporator core you must disconnect txv connections from the Evaporator tubes before taking out the txv from the core. When installing the txv position it onto the core before connecting the Evaporator tubes to the valve with torques set to 28 n.m (21 lb ft). The clip will secure the capillary tube to the Evaporator core before the pack sealer application enables a wrapping of the txv just as in disassembly steps and completion of Evaporator core reinstallation.

The process to replace the auxiliary air conditioning Evaporator thermal expansion valve (TXV) begins by removing the Evaporator core afterward removing the sealer gently from around the txv yet paying attention to where the tube mounts on the core and its correct orientation. Start by unfastening the clip which maintains the capillary tube connection to the Evaporator core. After this disconnect the Evaporator tube connections from the txv then remove the txv from its place on the Evaporator core. To attach the txv you must first mount it to the core according to fastener notice specifications and afterwards connect the Evaporator tube connections to the txv then tighten the connections to 28 n.m (21 lb ft). Reinstall the Evaporator core after installing the clip for keeping the capillary tube on the Evaporator core and packing sealer at the points noted during disassembly.

Reinstall the clip to secure the capillary tube to the evaporator core.

Next, remove the clip that holds the capillary tube to the evaporator core and disconnect the evaporator tube connections from the TXV before taking the TXV out of the core.

Attach the TXV to the core and connect the evaporator tube connections, tightening them to 28 N.m (21 lb ft).