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SECTION 3 - LUBRICATION AND MAINTENANCE
3-37
EVERY 250 HOURS
OPERATION 30
Check the Air-Conditioner Sight Glass
The air-conditioner sight glass should be
checked to see if the system is functioning
properly.
The receiver/drier, 1, is located on the back of the
condenser, in the front grille of the tractor on the
2360 and 2425 tractors (shown in illustration). It
is located on the rear left hand hood support on
the 2290, 2335 and 2375 tractors. Check the
sight glass on the top of the receiver tank every
250 hours. If clear, the system is in good
condition; if bubbles flow across the sight glass
with the engine running, the system may be low
on refrigerant. If the glass is cloudy, it is an
indication that the system is contaminated with
moisture. When moisture is present, the dryer
will have to be replaced by qualified air-
conditioning service technicians. Contact your
Buhler Versatile dealer.
WARNING: NEVER LOOSEN, REMOVE OR
DISCONNECT ANY HOSE IN THE AIR-
CONDITIONING SYSTEM.
THE AIR-CONDITIONER HOSES ARE UNDER
PRESSURE AT ALL TIMES, EVEN WHEN THE
TRACTOR IS NOT RUNNING.
DO NOT ATTEMPT TO SERVICE THE AIR-
CONDITIONING SYSTEM. IT IS POSSIBLE TO
SUFFER SEVERE FROSTBITE OR INJURY
FROM ESCAPING REFRIGERANT. SPECIAL
EQUIPMENT AND INSTRUMENTS ARE
REQUIRED TO SERVICE THE AIR-
CONDITIONING SYSTEM WHICH USES
R134A REFRIGERANT. SEE YOUR
AUTHORIZED BUHLER VERSATILE DEALER
FOR SERVICE.
Figure 3-48
1