JCB Backhoe Loader 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

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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

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

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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.