Fluorescent Leak Testing - New Holland T8010 Manual

Fluorescent Leak Testing

To perform UV fluorescent leak testing:
1. Operate the tractor long enough to circulate the
r e f r i g e r a n t a n d p r o d u c e n o r m a l s y s t e m
pressures.
2. Shut the tractor and system off when leak
testing.
3. Always wear fluorescent
glasses when leak testing.
4. Attach the lamp to a fully charged 12V battery or
an alternate 12V power supply for best lamp
performance.
5. Shine the high intensity ultraviolet light at the
various A/C components, hoses and lines to
search for a glowing fluorescent trail or puddle
which identifies the leak location.
6. The ultraviolet lamp is intended for intermittent
use only. The lamp has a momentary contact
push button switch to briefly light suspected leak
locations.
7. Do not work with the lamp ON for more than 5
minutes. If the lamp heats up uncomfortably,
cease operation.
8. Do not expose eyes or skin to ultraviolet light. Do
not stare into an ultraviolet light beam or operate
the lamp without the ultraviolet lens filter in place.
9. In direct sun sunlight or very bright ambient light,
use a cover of any type over the suspected area
to reduce this light.
10. If the lamp cannot be directed straight at a
suspected leak location, use a mechanics mirror
to reflect the light at the location. Or wipe the
suspected leak site with a clean shop cloth, and
shine the lamp at the cloth to check for traces of
fluorescent dye.
11. The exact location of a small leak at a connection
point or sealing point can be further narrowed by
daubing a wet film of soap solution over the
suspected area. Watch for bubbles to confirm the
exact point of leakage.
12. Repair all leaks and recharge the system.
13. 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
enhanced safety
50-2-59
RR00F098