Escalade V8-5.7L VIN R (2000)
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At the end of the process, the display show CPL.
Evacuation
1. Ensure that the unit tank has sufficient R-134a refrigerant for charging.
2. Simultaneously press the RESET key and the ENTER key in order to enter the diagnostic mode.
3. Press the 6 key.
The display must show 16 kg (36 lb) or more.
4. If the display shows less than 16 kg (36 lb), add new refrigerant to the tank.
5. With the high-side hose and the low-side hose connected to the vehicle, open the red high-side valve and blue low-side valve on the control panel.
IMPORTANT:
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In order to remove all of the air and in order to properly dry the A/C system, the unit automatically enters a preprogrammed evacuation period.
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In order to increase the evacuation period, press the keys in order to enter the time desired. The new entry shows on the display. Press the ENTER
key. The display blinks in order to indicate the input of the data.
6. Open both the red LIQUID valve and blue GAS vapor valve on the tank.
IMPORTANT:
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Automatic refrigerant recycling during each evacuation is a feature of the J 39500-B. The process requires no action of the technician.
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The control panel MOISTURE indicator is green during the recycling. This verifies that the refrigerant moisture content is within the
specifications. A yellow MOISTURE indicator indicates a set condition requiring a filter/drier cartridge change. Refer to the manufacturer
instructions.
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The J 39500-B automatically vents noncondensable gases, mostly air, during the recycling process. A sound of pressure release is audible as this
happens. This is a normal function.
7. Press the VACUUM key in order to start the vacuum pump.
Observe the following process:
7.1. The display counts down the vacuum time in order to indicate the operation time remaining.
7.2. The display reads RECYCLE 5 seconds after the pump starts.
RECYCLE appears while the process takes place.
8. At approximately the 12-minute mark on the display, after a 3-minuteperiod of pump operation, press the HOLD/CONT key in order to stop the
vacuum pump.
8.1. A reading of 0 vacuum indicates a major system leak.
Repair the leak.
Restart the evacuation procedure.
8.2. If the display indicates a vacuum of 91- 101 kPa (27-20 in of Hg), close the low-side valve and the high-side valve.
8.3. For a few minutes, observe the vacuum level as a leak check of the A/C system. If the vacuum does not remain, find and repair the leak prior
to continuation of the evacuation.
8.4. If the vacuum maintains a level of 91-101 kPa (27-30 in of Hg), open the high-side valve and the low-side valve.
8.5. Press the HOLD/CONT key in order to restart the vacuum pump.
IMPORTANT:
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Frequently change the vacuum pump oil.
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When the pump has run for a total time of 10 hours, the OIL message flashes on the control panel display as a reminder to change the oil.
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If the OIL warning flashes during the operation, press the CONT key. Change the oil prior to the next operation.
9. When the vacuum sequence completes the programmed time period, the display shows CPL in order to indicate that the evacuation is complete.
Successful Transfer Complete
IMPORTANT: If the transfer of refrigerant stops before complete, refer to Unsuccessful Transfer.
1. Close the high-side valve on the unit control panel. Both valves should now be closed
2. Start the engine. Turn ON the A/C system and let the system run until the readings on the high-side and low-side gauges stabilize.
Compare the readings, the outlet temperatures, the ambient temperature, and the humidity to the A/C performance table. Refer to System
Performance Test.
3. With the A/C system running, close the high-side coupler valve.
Disconnect the high-side (red) hose from the vehicle.
4. Open the high-side and the low-side valves on the control panel.
5. Refrigerant from both hoses will be drawn quickly into the A/C system through the low-side (blue) hose.
6. Close the low-side coupler valve and disconnect the valve from the vehicle.
Unsuccessful Transfer
On rare occasions, the total charge does not transfer to the vehicle A/C system. This can occur for the following reasons:
1. If the transfer is too slow because the pressure in the tank unit and the vehicle A/C system are about the same, the unit emits an audible signal and
the display shows the weight remaining for transfer. When this happens, do the following steps:
1.1. Close the high-side valve.
1.2. Open the low-side valve.