Evaporator/Heater Assembly; Evaporator/Heater Assembly Removal - New Holland T8010 Manual

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NOTE: The thermal expansion valve, heater valve and evaporator/heater assembly are located under the operator

seat. See ACCESSING THE HVAC BOX, page 90.

NOTE: Rotate the cab temperature control to the Maximum Heat position before shutting off the tractor for service.

This fully opens the heater control valve and allows more coolant to drain from the evaporator/heater assembly.

Use a vise clamp to clamp off the heater supply hose

on the right hand side of the engine. Close the valve

on the heater retur n hose at the engine. See

component locations in this Section for your engine.

Remove the ther mal insulation tape from the

expansion valve and the evaporator lines.

To test the valve see thermal expansion valve testing

in this section. Recover the A/C system to remove

the evaporator heater core.

Using the two hand, two wrench method, disconnect

the air conditioning suction and liquid lines at the

thermal expansion valve. Remove and discard the O-

rings. Cap or plug the lines to prevent dir t and

moisture from entering the system.

NOTE: Clean packaging tape may be used to seal

the expansion valve ports.

Section 50 - Climate Control - Chapter 2

EVAPORATOR/HEATER ASSEMBLY

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T8020 T8030 T8040