Every 50 Hours Maintenance; Every 100 Hours Maintenance; Method For Draining Water And Sediment From Fuel Tank; Method For Checking Oil Level In Hydraulic Tank, Adding Oil - Komatsu H70051 Series Operation & Maintenance Manual

MAINTENANCE PROCEDURE

EVERY 50 HOURS MAINTENANCE

METHOD FOR DRAINING WATER AND SEDIMENT FROM FUEL TANK

1.
Place a container to catch drained fuel under drain valve
(1) on the left side of the fuel tank.
2.
Open drain valve (1) on the left side of the fuel tank, and
drain the sediment and water accumulated at the bottom
together with fuel.
3.
When only the clean fuel flows out, close drain valve (1).

EVERY 100 HOURS MAINTENANCE

Maintenance for every 50 hours service should be performed at the same time.

METHOD FOR CHECKING OIL LEVEL IN HYDRAULIC TANK, ADDING OIL

• Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn in-
jury. Wait for the temperature to go down, and then start the work.
• When removing the oil filler cap, the oil may spurt out. Turn it slowly to release the internal pres-
sure, then remove it carefully.
NOTICE
If the oil is added to above H mark, stop the engine and wait for the hydraulic oil to cool down. Then
drain the excessive oil through the drain plug. It may damage the oil circuit and cause the oil to spurt
out.
Lower the bucket to the ground and stop the engine. Wait for 5 minutes before checking the oil level. Oil level
should be between H and L marks of the sight gauge (G).
1.
Check with the sight gauge (G).
4-46
k k
WARNING
MAINTENANCE