Leak Detection - New Holland T8010 Manual

WARNING: Never leak test with an open
!
flame or a flame-type detector.
WARNING: When refrigerant comes in
contact with an open flame, it can form
!
dangerous gas. Never br eathe these
fumes.
Two methods are recommended to test the A/C
system for refrigerant leaks: electronic leak testing
with OEM1437 and UV-florescent leak detecting.
Whatever method is used, the following components
or areas should be checked, always looking for signs
of leakage - oily residue, dust accumulation:
A. Compressor: line connections, surfaces where
parts are joined, compressor to clutch seal.
NOTE: When checking compressor seal for a leak,
remove the dust cover and rotate the compressor
shaft clockwise.
B. Condenser: line connections, all welded joints,
any visible damage.
C. Receiver-drier: line connections.
D. Thermal expansion valve: line connections.
NOTE: Remove the thermal insulation tape to check
the expansion valve for leaks; replace the tape when
completed.
E. Service ports: valve core under the caps.
F. Low and high pressure switches: Check
around the entire switch body where it is
threaded into the line.
G. Hoses: line connections where the hose end
meets a metal connector, any area that shows
damage or rubbing contact.
Section 50 - Climate Control - Chapter 2

LEAK DETECTION

M816
SM109A
50-2-51
OEM1437
UV Leak Detecting Lamp and Goggles
A22090
RR00F098