New Holland T8010 Manual page 1075

STEP 5
Open the high and low valves.
STEP 6
Make cer tain the refrigerant tank gas and liquid
valves are open.
STEP 7
Connect the main power plug to a 115 volt AC outlet.
Move the main power switch to the ON position and
depress the RECOVER switch.
The compressor will shut OFF automatically when
recovery is complete. Wait for 5 minutes and observe
the manifold pressure gauges for a pressure rise. If
no pressure rise, recovery is complete. If pressure
rises above 0 PSI, depress the HOLD/CONT switch
and repeat until pressure holds for two minutes. Then
wait for the compressor to automatically shut OFF.
NOTE: Refrigerant may pool inside the tractor's A/C
system. When the recovery unit's compressor is
turned off, the refrigerant will vaporize in the ambient
heat causing the system pressure to rise again.
Repeat the recovery process until the system
remains at a vacuum for at least two minutes.
Section 50 - Climate Control - Chapter 2
50-2-14
A22114
A22107
A22112