22. PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS No.
Replacement interval 27 28 29 30 31 Every 2 years or 4000 hours, whichever comes sooner 32 33 34 35 36 37 38 Every 3 years 3-17 Safety critical parts for periodic replacement Q’ty Hose (PPC valve for blade – PPC drain relay block) 1 Hose (PPC valve for ripper – main valve) 4 Hose (PPC valve for ripper – PPC drain relay block) 1 Hose (PPC charge valve – PPC drain relay block) 1 Hose (PPC drain relay block – suction tube) 1 Hose (work equipment pump – blade lift valve) 1 Hose (work equipment pump – ripper low valve) 1 Hose (blade valve – blade lift divider block) 2 Hose (blade lift divider block - relay tube) 2 Hose (relay tube – blade lift cylinder) 4 Hose (ripper low valve – blade tilt relay tube) 2 Seat belt 1