RING 5350349 - Caterpillar

Tilt Left Operation of the Bulldozer
Move the bulldozer control lever to the left and the pilot oil goes through line (10) to the end of tilt spool (11). The pressure of the pilot oil moves tilt spool (11) to the TILT LEFT position (no illustration). The pump oil from line (12) in the bulldozer control valve goes through line (17) to the head end of tilt cylinder (18). The pump oil in the head end moves the rod (connected to the right end of the bulldozer) farther out of tilt cylinder (18) and pushes the end of the bulldozer up to a TILT LEFT position.Raise Operation of the Ripper
RIPPER LIFT HYDRAULIC SYSTEM (RAISE Position) 1. Selector stem.2. Pilot valve for bulldozer tilt control.3. Pilot valve for ripper lift control.4. Pilot valve for ripper tip control.5. Pilot oil line from restrictor valve.6. Small pump section.7. Large pump section.8. Restrictor (pressure control) valve.15. Line to bulldozer control valve.16. Line to ripper control valve.22. Line to shuttle valve.23. Pilot oil line to ripper lift spool.24. Pilot oil line to ripper lift spool.25. Ripper lift cylinders.26. Load check valve.27. Ripper lift spool.Move the ripper control lever to the LIFT position and the control lever moves the valve spool in pilot valve (3) for ripper lift control. The oil of pump section (7), from restrictor valve (8) in pilot valve (3), goes through line (23) to the