Inspecting the Air Conditioner
rv mm 83.01.000
Warning: Wear eye protection, gloves, and protective clothing when working on the air conditioning system. Leaking refrigerant from a damaged hose or line could cause blindness or serious skin burns.
- Park the vehicle on a level surface, shutdown the engine, apply the parking brake, and chock the tires.
- Check the appearance of the air conditioner compressor pulley assembly. If the friction surface of the pulley shows signs of excessive grooving due to belt slippage, replace both the pulley and the drive plate. Visually inspect the refrigerant compressor drive belt for damage, and check that the belt is set at the proper tension. Also check the tightness of the compressor mounting fasteners. For instructions and torque values and for removal and installation procedures, see of the Recreational Vehicle Chassis Workshop Manual, or take the vehicle to an authorized Freightliner dealer.
- Inspect the compressor clutch coil wire. Ensure that the connector is not damaged or loose. Replace the wire if it is damaged.
- Check the overall condition of the air conditioning hoses. Look for cracks, cuts, and abrasions on the hoses. Replace damaged hoses; see of the Recreational Vehicle Chassis Workshop Manual for replacement instructions, or take the vehicle to an authorized Freightliner dealer. Also, visually check for loose fittings on all air conditioning components. Do not overtighten the fittings.
- Check for a buildup of road debris on the condenser fins. Using air pressure and a whisk broom or a soapy spray of water, carefully clean off the condenser. Be careful not to bend the fins.
Caution: To avoid the possibility of burns, make certain that the engine and air conditioner components are not hot.
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