RING-TORIC 1153437 - Caterpillar

At operating temperature, the hydraulic tank is hot and under pressure.Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.Remove the filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. Remove the filler cap slowly to relieve pressure.
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Drain The Oil
Operate the machine in order to warm the power train oil. The machine must be level. Lower the boom and retract the counterweights.Engage the parking brake. Stop the engine.See the Topic "Transmission System Oil Filter - Replace" in this manual for the procedure to change the filters.Use a 126-7538 Nozzle if the machine is equipped with the high speed oil change arrangement. The high speed oil change arrangement removes oil from the sump in the bevel gear case. The high speed oil change arrangement does not remove oil from the torque converter or from the transmission case.
Illustration 1 g01147719
Remove the plug from the drain in the bevel gear case. Install a 4C-8563 Swivel into the valve. Clamp a hose to the swivel. A 25.4 mm (1 inch) pipe and hose can be used. Use a 25.4 mm (1 inch) pipe with 1-11 1/2 NPTF threads. Do not tighten the pipe.
Turn the swivel or pipe clockwise in order to open the internal drain valve. Allow the oil to drain into a suitable container.
Remove the swivel or remove the pipe from the drain in the bevel gear case. The drain valve will close.
Clean the oil drain plug and install the oil drain plug.
Change the filter element. See Operation and Maintenance Manual, "Transmission System Oil Filter - Replace".Fill with Oil
Open the access panel on the left side of the cab in front of the hydraulic tank.
Illustration 2 g01210191
Remove cap (1) from the transmission oil filler tube.
Fill the bevel gear case with oil. To determine the correct amount of oil, see Operation and Maintenance Manual, "Capacities (Refill)".
Illustration 3 g01147802
(2) Warm oil (3) Cold oil
Always measure the oil with the transmission dipstick on the cap.
Maintain the oil level within the marks for the operating range on the dipstick. The engine should be running at low idle. The power train should be at operating temperature. See the Topic "Transmission System Oil Level - Check" in this manual.
Clean the oil filler cap. Install the oil filler cap.
Unscrew transmission breather (4) and remove the transmission breather.
Wash transmission breather (4) in a clean nonflammable solvent.
Install the transmission breather.
Close the access door.