New Holland T8010 Manual page 1039

4. With the clutch still engaged, momentarily touch
t h e s u c t i o n a n d d i s c h a r g e h o s e s a t t h e
compressor for temperature difference. The
suction line should be cool to cold, and the
discharge line should be hot to very hot.
WARNING: This is only a momentary
!
contact with the hose.
Little or no temperature difference between the
hoses is another indication of compressor failure:
internal leakage between discharge and suction
sides.
NOTE: The compressor end plate is stamped with a
"D" and "S" to indicate the discharge and suction
ports.
5. Verify an internal problem when compressor
failure is suspected. Turn the A/C system and
tractor OFF. Remove the three Torx
remove dust cover from clutch. Use a wrench to
s l ow l y r o t a t e t h e c o m p r e s s o r c l o ck w i s e.
Compressor rotation should be smooth and not
require much effort. If severe rough spots or
catches are felt when turning the shaft, the
compressor has been damaged internally and
must be replaced.
Section 50 - Climate Control - Chapter 1
M636
®
screws to
50-1-68
1. DISCHARGE/HIGH
PRESURE LINE
2
1
RD02H031
2. SUCTION/LOW
PRESSURE LINE
1
RD02H023
RD02H024