New Holland T8010 Manual page 1117

Quick and Easy Dye Injector Tool with a Charged System
The quick and easy R134a dye injector tool is
designed to insert the dye in a charged system. The
dye injector tool has a quick coupler, for connecting
to the low pressure port of the tractor A/C system,
and a valve with T-handle on the other end.
1. Examine the threaded end of the valve to see if
the point of the valve stem is flush with the
rubber washer. If not, turn the T-handle until the
point is flush.
2. Screw the Quick and Easy can and the valve
together until the can seats on the r ubber
washer.
NOTE: Do not turn the T-handle at this time to tap
the can.
3. Connect the quick coupler to the low pressure
service port under the instructional seat in the
cab.
4. To purge air from the hose, slowly unscrew the
u n t a p p e d c a n a h a l f t u r n o r m o r e. A l l ow
refrigerant from the A/C system to force the air
out of the hose, and then retighten the can on the
valve.
5. Turn the T-handle clockwise to tap the can.
6. Hold the can upside down to allow the can
c o nt e n ts t o e nt e r t h e A / C s y s t em . W h e n
complete, turn the T-handle counterclockwise to
close the valve. Disconnect the tool from the low
pressure port.
NOTE: You may have to operate the tractor and the
A/C system for a few minutes to completely empty
the can.
7. Install the dye identification sticker on a clearly
visible area on the compressor body close to the
service port. 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.
Section 50 - Climate Control - Chapter 2
50-2-56
3
2
4
1. QUICK COUPLER
2. VALVE
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.
1
4
RD01F247
3. T-HANDLE
4. SUPPLY CAN