MAINTENANCE PROCEDURE MAINTENANCE EVERY 1000 HOURS MAINTENANCE 0. Maintenance for every 100, 250 and 500 hours should be carried out at the same time. Final Drive Case Oil - Change 0. The oil is at high temperature immediately after the machine has been operated. Wait for the oil to cool down before starting the operation. If there is still pressure remaining inside the case, the oil or plug may fly out. Loosen the plug slowly to release the pressure. Refill capacity (each): 1.0 liter (0.26 US gal) Prepare a hexagon wrench 1. Turn the sprocket so that plug (P) is at the bottom. 2. Set the container to catch oil under plug (P). 3.
Remove plugs (P), (G) and (F) with hexagonal wench to drain the oil. 4. Tighten plug (P). 5. Add oil through the hole of plug (F) up to the refill level. 6. After the oil flows out of the hole plug (G), install plugs (G) and (F). Engine Valve Clearance - Check/Adjust 0. As special tool is required for removing and adjusting the parts, you shall request Komatsu distributor for service. 4-56 WARNING