jcb JS300 Service Manual page 201

Tracked excavators - tier 4i isuzu engine

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Heating, Ventilating and Air-Conditioning (HVAC)

1. Close the door and windows.

2. Push the defrost/demist switch.

3. Turn the fan speed switch clockwise fully clockwise and direct the air flow onto the front window.

4. Turn the temperature control switch fully clockwise to heat the dehumidified conditioned air, demist the

screen and generally dehumidify the cab air.

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