JCB Excavator Blower Unit – Removal and Replacement



The blower W is located inside the HVAC/air conditioning

unit and can be removed without having to remove the HVAC

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unit from the machine.

The only user-serviceable part is the resistor which

determines the blower motor speed. Other faults, excluding

wiring faults, necessitate the replacement of the blower unit

complete.

Resistor replacement requires the removal of the blower unit

as follows:

Removal

1

Disconnect the battery.

2

Gain access to the HVAC unit by removing the right

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hand side console and remove the HVAC unit top cover,

refer to HVAC/Air Conditioning Unit – Removal and

Replacement Steps 2 and 3.

3

Disconnect the electrical connections to the blower.

4

Remove the screws securing the blower unit to

the HVAC unit housing.

5

Carefully withdraw the blower from the HVAC unit.

6

To remove the resistor, disconnect the electrical

connections and unscrew the resistor.

Replacement is the reverse of the removal procedure.

Freeze Protection Thermostat

– Removal and Replacement

The Thermostat V monitors the external temperature of the

evaporator and is located inside the HVAC/air conditionig

unit.

Removal

1

Disconnect the battery.

2

Gain access to the HVAC unit by removing the right

hand side console and remove the HVAC unit top cover,

refer to HVAC/Air Conditioning Unit – Removal and

Replacement Steps 2 and 3.

3

Unclip the sensor wire from the evaporator and

gently remove the wire from between the fins.

4

Disconnect the electrical connections to the thermostat.

5

Remove the screws securing the thermostat to

the HVAC unit housing.

Replacement is the reverse of the removal procedure.

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