. MAINTENANCE SAFETY CRITICAL PARTS SAFETY CRITICAL PARTS LIST 4 - 13 SAFETY CRITICAL PART S tended period if time, you are required to periodically replace the safety listed in the table of important parts on the following page. For using th e machine s afely fo r an ex time, replace (critic al and fire p reventio n) rela ted parts listed i n the tab le of i mportant parts on th e following p age. Mater ial quality o f these p arts ca n chan ge as tim e passe s and they are likely to we ar 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 periodic ma intenance.
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 This mportant to ensur e that thes e parts m aintain their fu ll performance a t all ti mes. Furthermor e, should anything ab normal be found on any of the se parts, r eplace it wi th 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, replace the clamps a t the sa me time as the hoses.
Als o p erfor hydrauli clamp s and replace defective ho ses, as require When replacing hoses, a lways r eplace O-rings, gaskets, and other such parts at t he same tim Have your K omatsu distributor r eplace t he critic al parts. No.
Safety critical parts for periodic replacment Q 'ty Replacement interval 1 Fuel hose (fuel tank - water separator) 1 1 1 1 1 1 2 1 2 Every 2 years or 4000 1 hours, whenever comes 3 sooner 3 4 4 4 2 4 2 4 2 Fuel hose (water separator - feed pump pre-filter) 3 Fuel hose (feed pump pre-filter - fuel filter) 4 Fuel hose (fuel filter - injection pump) 5 Fuel hose (fuel tank - stop valve) 6 Fuel hose (fuel tank - air bleed tube) 7 Fuel return hose (injection pump - fuel filler port hose) 8 Spill hose (nozzle - fuel filler port hose) 9 Fuel hose (fuel tank - fuel filler port) 10 Fuel hose (fuel filler port - fuel filler post hose) 11 Hydraulic hose (main pump delivery) 12 Hydraulic hose (main pump suction) 13 Hydraulic hose (boom cylinder - control valve) 14 Hydraulic hose (arm cylinder - control valve) 15 Hydraulic hose (bucket cylinder - control valve) 16 Hydraulic hose (swing motor - control valve) 17 Hydraulic hose (blade cylinder - control valve) 18 Hydraulic hose (swing cylinder - control valve) 19 Hydraulic hose (Attachment additional line - control valve) 20 Seat belt 1 Every 3 years