STEP 1
Start the tractor and run the engine at 1500 RPM. If
possible, operate the air conditioner for 15 minutes at
maximum cooling and maximum blower speed. ATC
switch set to DEFOG/DEFROST, standard A/C
switch set to ON.
STEP 2
Clean the external surfaces of the compressor and
hoses. Remove the caps from the service ports on
the suction and pressure lines.
Section 50 - Climate Control - Chapter 2
RECOVERING PURE 134A REFRIGERANT
Standard A/C Controls
1. BLOWER CONTROL
2. ATC OR STANDARD A/C
SWITCH
50-2-12
1
3
3
1
ATC A/C Controls
3. TEMPERATURE
CONTROL
4. DEFOG/DEFROST
SWITCH
2
RH02J044
2
4
RH05J039
RD02H032