New Holland T8010 Manual page 1119

SP-20 PAG Oil Return Bottle
NOTE: This is the least preferred method for
injecting the dye since it requires very careful
measurement of the PAG oil in the bottle and risks
the introduction of air into the system if the dip tube in
the bottle is exposed.
1. Recover the refrigerant from the A/C system.
2. Carefully measure the amount of SP-20 PAG oil
in the reservoir which was separated from the
refrigerant.
3. Pour the new replacement oil into the oil return
bottle plus some additional oil to prevent
uncovering the dip tube.
4. Pour the contents of one bottle of fluorescent dye
into the oil return bottle and seal the bottle.
5. Evacuate the system and inject the oil and dye
mixture into the system, making sure the oil level
in the oil return bottle does not drop below the
dip tube.
6. Recharge the A/C system with the proper
amount of refrigerant.
7. Install the dye identification sticker on a clearly
visible area on the compressor body close to the
service ports. This will alert service personnel in
the future to the presence of the dye in the
system.
8. Operate the A/C system for about 15 minutes to
circulate the dye throughout the system. Turn off
the system and use the UV lamp and goggles to
locate leaks. The exact location of the leak will be
shown by a bright yellow/green glow of the dye.
NOTE: The operating time needed for the dye to
penetrate a leak and show will depend on the size of
the leak. A very small leak could take hours or days
of system operation to appear.
9. After repairing the system, use fluorescent dye
cleaner to remove any traces of dye from around
the leak location to avoid false diagnosis in the
future.
Section 50 - Climate Control - Chapter 2
50-2-58
MK96C043