Komatsu — 500 HOUR LUBRICATION AND MAINTENANCE CHECKS

Maintenance - Section 4 OM4015.1 Page 4-8 Lubrication and Service 500 HOUR LUBRICATION AND MAINTENANCE CHECKS Maintenance for every 10, 50, 100, & 250 hour Lubrica- tion and Maintenance Checks should also be carried out at this time. Truck Serial Number ____________________________ Site Unit Number ______________________________ NOTE: "Lube Key" references are to the Lubrication Specification Chart. Date:______________Hour Meter_________________ Name of Service person__________________________ 1. REAR AXLE CASE BREATHERS - Remove breather elements for motorized wheels and clean or re- place elements. 2. HYDRAULIC SYSTEM FILTERS - Replace filter elements. Check oil level in tank.

Oil should be visible in sight glass, add oil if necessary. Refer to "Hydraulic Tank Service". DO NOT OVERFILL. Lube Key "D". 3. HYDRAIR ® SUSPENSIONS - Check for correct piston extension (front and rear). Refer to Service Manual, Section "H". 4. THROTTLE AND BRAKE PEDAL (NOT SHOWN) - Lubricate treadle roller and hinge pins with lubri- cating oil. Lift boot from mounting plate and apply a few drops of oil between mounting plate and plunger. Lube Key "B". 5. AIR TANK SAFETY VALVE - (Not Shown) Check operation of safety valve. COMMENTS √’d INITIALS