Komatsu — 2500 HOUR LUBRICATION AND MAINTENANCE CHECKS

OM4052 Maintenance - Section 40 Lubrication and Service Page 40-11 1500 HOUR LUBRICATION AND MAINTENANCE CHECKS 1. Complete the 10, 50, 100, 250, and 500 hour lubrica- tion and maintenance checks. 2500 HOUR LUBRICATION AND MAINTENANCE CHECKS 1. 2. Complete the 10, 50, 100, 250, and 500 hour lubrica- tion and maintenance checks. Truck Serial Number Site Unit Number Date ______________________ _______________ _______________ Hourmeter Name of Service Technician _____________ ___________________________________ TASK COMMENTS CHECKED INITIALS WHEEL MOTORS - Change oil. Clean sump mag- netic plugs.

Refer to Motorized Wheel Maintenance Schedule in Section P of the shop manual for addi- tional information. Truck Serial Number Site Unit Number Date ______________________ _______________ _______________ Hourmeter Name of Service Technician _____________ ___________________________________ TASK COMMENTS CHECKED INITIALS WHEEL MOTORS - Check for spline and gear wear. Refer to Motorized Wheel Maintenance Schedule in Section P of the shop manual. FRONT WHEELS - Drain and refill with oil. Use Lube Key C. Oil may need to be changed more frequently, depending on mine conditions and the results of the oil sample tests. a. Remove the drain plug and drain the oil from the front wheel hub.

Inspect and reinstall the drain plug. b. If necessary, rotate the wheel hub to position the fill plug at 12 o’clock. c. Remove the fill plug. d. Fill wheel hub assembly with SAE 80W-90 oil. e. When properly filled, the floating ball in the sight gauge will be at its highest position. f. Replace the fill plug.