Checking Air Conditioning System

CAUTION: Refrigerant under pressure. Improper servicing can cause refrigerant to penetrate eyes and skin or cause burns.

IMPORTANT: R134a refrigerant must be used. This requires special equipment and procedures. See your John Deere Dealer.

NOTE: Some oil seepage from compressor shaft seal, on the lower front, is normal.

Check the following if air conditioner will not cool, or cooling is intermittent:

• Clean grille, radiator, and refer to Cleaning Radiator, Coolers and Air Conditioning Condenser in this section.
• Inspect and clean cab air filters. Replace filters if required. Refer to Cleaning or Replacing Cab Air Filters in this section.
• For standard air conditioning, operate engine at 2000 rpm and set compressor switch (A) to ON position and blower knob (B) to HIGH position.

  For ClimaTrak, operate engine at 2000 rpm and set compressor knob (A) to ON position and blower knob (B) to HIGH position.

If problems persist, see your John Deere Dealer.

NOTE: Initially cool cab with blower speed on HIGH, then turn blower speed knob to RUN or Low for preferred comfort level.

A-Compressor Switch/Knob
B-Blower Knob

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