Checking Refrigerant Level

IMPORTANT: The air conditioning system operates using R134a refrigerant (tetra- fluorethane). This substance does not contain any chlorine atoms, so it does not have a detrimental effect on the ozone in the Earth's atmosphere.

Even so, the refrigerant must never be discharged straight into the air. It must be trapped in a recycling unit. For this reason, never separate any line connections, and always have service and repair work done only by a John Deere dealer who has the appropriate recovery and recycling equipment.

Check refrigerant level every 200 hours. With controls set at maximum cold and engine at high idle, check sight glass (A) at receiver-drier (B).

It is normal to see bubbles at the sight glass when compressor clutch is disengaged. After clutch engages again, bubbles must disappear and sight glass must be clear after 30 seconds of compressor operation.

If bubbles do not disappear, see your John Deere dealer.

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