. MAINTENANCE SAFETY CRITICAL PARTS SAFETY CRITICAL PARTS LIST 4 - 13 SAFETY CRITICAL PART S ended period of time, you are required to periodically replace the safety s listed in the table of important parts on the following page. For using th e machine s afely fo r an ext eriod time, equired (critic al and fire p reventio n) rela ted part s listed i n the tabl e of i mportant parts on the following p age. Mater ial quality o f these p arts c an chan ge as tim e passe s and they are likely to wear out or deteriorate . However, it is difficult t o determine t he exte nt of we ar or det erioratio n at th e tim e of p eriodic maintenance.
Hence, it is required to r eplace t hem with new ones regardl ess of th eir condition after a certain period of usage. This is important to his mportant to ensur e that thes e parts m aintain their fu ll performance at all ti mes. Furthermore , should anything ab normal be found on any o f the se parts, r eplace it with a new one even if t he periodic replacemen t time for the part ha s not ye t arrived . If any of the hose clamps show deterioration like deformation or crackin g, replac e the clamps a t the sa me time as the hoses.
Als o perfor hydrauli clamp s and replace defective ho ses, as require When replacing hoses, a lways r eplace O-rings, gaskets, and other such parts a t the same tim Have your K omatsu distributor r eplace t he critic al parts. No.
Safety critical parts for periodic replacement Q't y Replacement interval 1 Fuel hose (Fuel tank - Water separator) 1 Every 2 years or 4000 hours, whichever comes sooner 2 Fuel return hose (Water separator - Fuel pump) 1 3 Fuel return hose (Fuel injection pump - Fuel tank) 2 4 Fuel return hose (Connector - Fuel tank) 1 5 Turbocharger lubricating oil hose 1 6 Pump outlet hose (Pump - Control valve) 2 7 Work equipment hose (Boom cylinder inlet) 4 8 Work equipment hose (Bucket cylinder line - Boom foot section) 2 9 Work equipment hose (Bucket cylinder inlet) 2 10 Work equipment hose (Arm cylinder line - Boom foot section) 2 11 Work equipment hose (Arm cylinder inlet) 2 12 Additional attachment line hose (Boom foot section) 2 13 Additional attachment line hose (Boom top section) 2 14 Swing line hose (Swing motor inlet) 2 15 Main suction hose 1 16 Heater hose 2 17 Seat belt 1 Every 3 years