Buhler 485, 535, 435 manual F4-31

4-26

Section 4 - Lubrication & Maintenance

Every 250 Hours

Operation 31

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 rear, left hand hood support.. Check the sight glass (2) 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 a qualified air-conditioning service technicians.. Contact your Buhler Versatile dealer..

WARNING: NEVER LOOSEN, OR DISCONNECT ANY OF THE HOSES 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

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F4-31

435/485/535