CARRIER-OIL SEAL 1T1557 - 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.Transmission System Oil
Change the Oil
Operate the engine long enough to warm the oil. The machine must be level. Lower the bowl with slight down pressure.Engage the parking brake. Stop the engine. 1. Remove the transmission drain plug and drain the oil into a suitable container. 2. Remove the oil sump drain plug and allow the oil to drain into a suitable container.3. Change the filter element. See the topic Transmission Oil Filter under Every 500 Service Hours or 3 Months. 4. Remove the magnetic strainer cover.5. Remove the magnets from the housing.6. Remove the screen from the housing.7. Wash the tube and the screen in a clean, nonflammable solvent.8. Clean the magnets with a cloth, a stiff bristle brush or pressure air.
Do not drop or rap the magnets against any hard objects. Replace any damaged magnets.
9. Clean the cover and inspect the seal. Replace the seal, if it is damaged.10. Insert the magnets in the screen.11. Insert the screen, tube and magnets in the housing.12. Install the cover. Tighten the cover bolts.13. Clean and install the transmission drain plug. 14. Fill the transmission with oil through the fill tube. See the Lubricant Viscosities and Refill Capacities chart. 15. Remove the transmission breather. Wash the breather in clean, nonflammable solvent. Install the transmission breather.16. Remove the transfer gear housing breather. Wash the breather in clean, nonflammable solvent. Install the transfer gear housing breather.17. Close the access cover.18. Start and run the engine at low idle. Inspect for leaks.19. Slowly operate the transmission controls to circulate the oil. 20. Maintain the oil level between the marks in the sight gauge (1). Add the oil through fill tube (2) if necessary.21. Stop the engine.Differential and Final Drive Breather
Clean Breather
1. Remove the differential breather.2. Wash the breather in clean, nonflammable solvent.3. Allow the breather to dry.4. Install the differential breather.Air Dryer
Change Desiccant
Air lines to and from the air dryer must be at atmospheric pressure. Release the air pressure from the air system completely before performing maintenance.
Replace or rebuild the desiccant cartridge if water can no longer be absorbed. Consult your Caterpillar dealer for service or replacement parts.Rollover Protective Structure (ROPS)
Inspect ROPS/Tighten Bolts
Inspect for any loose or damaged bolts. Replace damaged bolts or missing bolts with original equipment parts only. Tighten bolts to a torque of 750 80 N m (550 60 lb ft). Apply oil to all ROPS bolt threads before installing. Failure to apply oil can result in improper bolt torque.Replace ROPS mounting supports if the ROPS 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.Contact your Caterpillar dealer for repair of cracks in welds, castings or any metal section on the ROPS.Air Brake Warning Horn
Test
Bleed the air pressure off the system. The horn should sound. Repair if necessary.Wheel