New Holland T8010 Manual page 1084

STEP 30
When inlet pressure gauge shows a vacuum,
disconnect the air line. Wait five minutes. If inlet
pressure rises above 0 psi, repeat Steps 33 and 35.
NOTE: Refrigerant may pool inside the system.
When the station 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.
STEP 31
When the recovery process is complete, close the
valve on the recovery tank. Close the low pressure
hose valve and remove the hose from the port at the
compressor.
STEP 32
Disconnect the compressed air line from the inlet on
the regulator.
Section 50 - Climate Control - Chapter 2
50-2-23
1
1. A/C SYSTEM PRESSURE
GAUGE
2
RR00E157
2. TANK PRESSURE
GAUGE
RR00E159
RR00E133