Caterpillar Caterpillar Compact Track Loader 247 247

Engine Crankcase Breather (Closed Circuit) - Replace

NOTICE: Ensure that the breather pipe connections are tight. Do not overfill the engine cranckcase. If there is too much oil in the crankcase oil may enter the breather. Oil entering the breather may cause the engine speed to increase rapidly without control.

Firmly grasp the breather and pull up on the breather in order to remove the breather.

Remove the breather hoses. Clean the hoses with nonflammable solvent.

Install a new breather. Ensure that the breather is properly seated in the base.

Install the breather hoses. Ensure that the connections are tight.

Sign off on the maintenance procedure

WARNING: Personal injury can result from contact with refrigerant. Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury. Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant. Always use precaution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, release it slowly in a well ventilated area.

Personal injury or death can result from inhaling refrigerant through a lit cigarette. 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.

Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system.

NOTICE: If the refrigerant system has been open to the outside air (without being plugged) for more than 30 minutes, the receiver-dryer must be replaced. Moisture will enter an open refrigerant system and cause corrosion which will lead to component failure.

Refer to Service Manual, SENR5664, “Air Conditioning and Heating R-134a For All Caterpillar Machines” for the proper procedure to change the receiver-dryer assembly and for the procedure to reclaim the refrigerant gas.

Note: The receiver-dryer must also be replaced when the air conditioning system is evacuated.

Did you replace the Refrigerant Dryer?

Did you use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system?

Refer to the Service Manual for the complete adjustment procedure for the engine valve lash.

A qualified mechanic should adjust the engine valve lash and the fuel injector timing because special tools and training are required.

Note: The correct fuel timing specification is found on the Engine Information Plate. Fuel timing specifications may vary for different engine applications and/or for different power ratings.

A qualified mechanic should adjust the fuel injection timing because special tools and training are required.

Refer to the Service Manual for the complete adjustment procedure for the fuel injection timing. Refer to your Caterpillar dealer for the complete adjustment procedure for the fuel injection timing.

Sign off on the fuel injection timing check

The normal oil change interval for the machine is Every 500 Service Hours or every year when the following conditions are met:

• Caterpillar oil or API Specification CG-4 multigrade oil is used.

• Caterpillar filters are used.

• The altitude does not exceed 2300 m (7545 ft).

• Sulfur content in the fuel is between 0.05% and 0.50%.

An oil change interval of Every 250 Service Hours or every month is required when the following conditions occur:

• Caterpillar oil or API Specification CG-4 multigrade oil is not used.

• The altitude exceeds 2300 m (7545 ft).