MAINTENANCE MAINTENANCE PROCEDURE MAINTENANCE PROCEDURE 4 INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS) 4 Carry out the following maintenance only after the first 250 hours of operation on new machines. q Replace fuel filter cartridge For details of the method of replacing or maintaining, see the section on EVERY 500 HOURS SERVICE. INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS) 4 Carry out the following maintenance only after the first 1000 hours of operation on new machines. q CHECK ENGINE VALVE CLEARANCE, ADJUST Special tools are needed for inspection and maintenance, so contact your Komatsu distributor.
For details of the method of replacing or maintaining, see the section on EVERY 2000 HOURS SERVICE. 4-19