RADIATOR GP 3474901 - Caterpillar

5. Install cover and tighten to 170 5 lb. ft. (23 0,7 mkg). 6. Start engine. Open bleed plug in cover. Close plug when oil flows free of air bubbles. If the hydraulic oil filter change indicator warning lights are on continuously, when the oil is warm and the engine is at operating speed, change the filter element. 7. Check oil level. Add oil to FULL mark if necessary.(26)Transmission, Brake And Trailing Unit Hydraulic System
1. Stop engine. Remove filter drain plug. 2. Remove cover and used element. 3. Inspect cover seal. Use new seal if necessary.4. Install new element. 5. Install cover.6. Clean and install drain plug. 7. Remove filter cover and used element. 8. Inspect cover seal. Use new seal if necessary.9. Install new element. 10. Install cover and tighten to 43 4 lb. ft. (6 0,6 mkg). 11. Remove breather cover. 12. Remove old element and install a new breather element.13. Install breather cover. 14. Remove oil return line screen cover. 15. Remove screen and wash in clean solvent.16. Install screen. 17. Inspect cover seal. Use new seal if necessary. 18. Install cover. 19. Open filter and return line screen bleed plugs. Start engine. Close bleed plugs when oil flows free of air bubbles. Check oil level and add oil if necessary.