FILM-CERTIFICATION 2735025 - Caterpillar

Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas can cause bodily harm or death. Do not smoke when servicing air conditioners or wherever refrigerant gas may be present.
Bodily injury can occur from unexpected contact with open cab doors on machines equipped with a fixed cab riser.To avoid injury, close the cab door before climbing onto the rear of the machine.
Illustration 1 g00290119
(1) Access door. (2) Top access cover.
Open access door (1) on the left side of the machine. Secure the access door.
Open access cover (2) .
Start the engine. Turn the engine speed dial to the medium speed position.
Illustration 2 g00101966
Look at the sight glass on the receiver-dryer and note the amount of refrigerant.
Illustration 3 g00101967
Sight glass (A) contains only a few bubbles. This indicates that there is a satisfactory amount of refrigerant.
In sight glass (B), many bubbles are present. This indicates that there is a lack of refrigerant.
In sight glass (C), small amounts of vapor are present. This indicates that there is almost no refrigerant.If the condition in sight glass (B) or in sight glass (C) is noticed, consult your authorized Caterpillar dealer for recharging.Operation of the air conditioner without correct amounts of refrigerant could cause failure of the compressor.The air conditioner should be kept ready for operation year-round. Operate the air conditioner for a few minutes during the week in order to rotate the compressor. This prevents the leakage of refrigerant. The leakage is caused by a dry seal on the compressor.