Komatsu — 250 HOUR LUBRICATION AND MAINTENANCE CHECKS

OM4015.1 Maintenance - Section 4 Lubrication and Service Page 4-7 250 HOUR LUBRICATION AND MAINTENANCE CHECKS Maintenance for every 10, 50, & 100 hour Lubrication and Maintenance Checks should also be carried out at this time. NOTE: "Lube Key" references are to the Lubrication Specification Chart . Truck Serial Number ____________________________ Site Unit Number ______________________________ Name of Service person__________________________ Date:______________Hour Meter_________________ 1. ENGINE - Change engine oil and spin-on lube oil filters. Lube Key "A". NOTE:

When installing spin-on filter elements, thread onto base until the seal touches the base and then tighten only 1/2 to 3/4 additional turn by hand to seat element fully. Do not use a wrench or strap to tighten filter elements. 2. FUEL FILTER AND STRAINER - Change filter and strainer element. 3. STEERING CONTROL LINKAGE - Add one or two applications of grease to each grease fitting for pin and bearing. Check torque on steering pin nuts 1000 ft. lbs. (1346 N.m) torque. Use Lube Key "E". 4. AIR SYSTEM LUBRICATOR - (May not be on later trucks.) - If equipped, fill with oil, use Lube Key "D". 5.

HYDRAULIC SYSTEM OIL FILTERS - Change filter elements after the initial 250 hours of operation; then at each 500 hours of operation thereafter. 6. COOLING SYSTEM DCA WATER FILTER - Change spin-off filter. Check cooling system for proper coolant mixuture. Add water mixture as required. 7. CAB AIR FILTER (NOT SHOWN) - Under normal operating conditions, clean every 250 hours. In extremely dusty conditions, service as frequently as required. Clean filter element with mild soap and water, rinse completely clean and air dry with maximum of 40 psi (275 kPa). Reinstall filter. COMMENTS √’d INITIALS