COUPLING AS 4398599 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Prepare the machine for maintenance. Refer to Operation and Maintenance Manual, "Prepare the Machine for Maintenance".
Illustration 1 g01916393
Remove drain plug (1) from the bottom of screen housing (2) and drain the oil into a suitable container. Clean the drain plug and install the drain plug. Note: Removing the drain plug from the bottom of the screen housing may not drain all of the oil from the screen.
Remove the screen housing. Remove the screen. Discard the used screen.
Wash the screen housing in clean, nonflammable solvent.
Inspect the seal in the base of the screen housing. If the seal is damaged, replace the seal with a new seal.
Install the new screen in the screen housing. Install the screen housing.
Start the engine and operate the engine at an idle. Make sure that the parking brake is engaged. Check for leaks and make any necessary repairs.
Check the oil level in the torque converter sump. If necessary, add oil. For the proper procedure, refer to Operation and Maintenance Manual, "Torque Converter Sump Oil Level - Check".