SEAL-O-RING 1890193 - Caterpillar

You must read and understand the warnings and instructions contained in the Safety section of this manual before performing any operation or maintenance procedures.Power Train System
Change Oil/Wash Screen
Operate the engine long enough to warm the oil. The machine must be level. Lower the attachments with slight down pressure. 1. Remove the transmission drain plug and drain the oil into a suitable container. Remove transmission oil pump suction cover and screen.2. Change the filter element. See the topic Transmission System under Every 250 Service Hours or Monthly in the Maintenance Section of this manual.3. Clean and install the drain plug.4. Wash screen in clean, nonflammable solvent. Install screen and cover. 5. Open the access door on the top of the hydraulic tank. 6. Remove the oil fill cap.7. Add oil. See the Refill Capacities chart in the Maintenance Section of this manual.8. Clean and install the oil fill cap. 9. Maintain the oil level to the FULL mark on the dipstick.10. Close the access door.11. Remove the floor plate. Unscrew and remove the breather on the vent line between the main case and the torque converter.12. Wash the breather in clean, nonflammble solvent.13. Install the breather and install the floor plate.Final Drives
Change Oil
1. Position one final drive with the oil drain plug at the bottom.2. Remove drain plug (1). Allow the oil to drain into a suitable container.3. Inspect the drain plug seal. Replace the seal if damaged.4. Clean and install the drain plug.5. Remove oil fill plug (2).6. Fill the final drive to bottom of fill plug opening. See the Refill Capacities chart in the Maintenance Section of this manual.7. Inspect the oil fill plug seal and replace the seal if damaged. Install the fill plug.8. Repeat Steps 1 through 7 for other side of machine.Winch (If Equipped)
Change Oil/Wash Breather
1. Remove oil fill plug. 2. Remove drain plug (1). Allow the oil to drain into a suitable container.3. Inspect the plug seal and replace if damaged.4. Clean and install the drain plug.5. Fill the oil compartment until oil is visible in sight gauge (2). See the Refill Capacities chart in the Maintenance Section of this manual.6. Clean and install the fill plug.7. With the engine running at LOW IDLE, maintain the oil level so that it is visible in the sight gauge.8. Remove the breather on top of winch case. Wash it in clean, nonflammable solvent and install.Rollover Protective Structure (ROPS), Falling Object Protective Structure (FOPS)
Inspect
Inspect for any loose or damaged bolts. Replace damaged or missing bolts with original equipment parts only. Retighten bolts to a torque of 1100 150 N m (800 100 lb ft).Replace ROPS/FOPS mounting supports if the ROPS/FOPS rattles or makes a noise when the machine is operated on a rough surface.Do not straighten or repair by welding reinforcement plates to the ROPS/FOPS.Contact your Caterpillar dealer for repair of cracks in welds, castings or any metal section on the ROPS/FOPS. Apply oil to all ROPS/FOPS bolt threads before installing. Failure to