Service Air Conditioner

LV17758-UN-14MAY13

A - Defrost Switch

B - Blower Control Knob

C - High Position

Air Conditioner Checks

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

Avoid injury! Refrigerant under pressure. Improper servicing may cause refrigerant to penetrate eyes and skin or cause burns.

Avoid damage! R134a refrigerant must be used. This requires special equipment and procedures. See your John Deere dealer.

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

1. If air conditioner clutch slips after tractor has been in storage, compressor may be stuck.

   • Stop engine and turn ignition switch to stop (off) position.
   • Raise hood and rotate clutch hub back and forth to free compressor.
   
   

2. Run engine at 2000 rpm. Push top half of A/C and defrost switch (A) and set blower control knob (B) to high position (C). If cooling is intermittent, clean hood grille, radiator, and condenser. If problem is not solved, see your John Deere dealer.

3. Inspect operator enclosure (cab) filter for restriction. If problem persists, see your John Deere dealer to have evaporator core cleaned.

Cleaning Air Conditioner Condenser

LV17757-UN-14MAY13

A - Air Conditioner Condenser

Avoid injury! Compressed air can cause debris to fly a long distance.

• Clear work area of bystanders.
• Wear eye protection when using compressed air for cleaning purposes.
• Reduce compressed air pressure to 210 kPa (30 psi).

1. Raise hood and check air conditioner condenser (A) for dirt and debris. Clean condenser using a brush or compressed air.

2. If a more thorough cleaning is necessary, clean radiator from behind with compressed air or water. Straighten any bent fins.