Komatsu Dump Truck HD405-7

Change Oil in Steering, Hoist Oil Tank

Lowered the dump body and stopped the engine?

Turned the cap of oil filler to release the internal pressure before removing the cap?

Removed drain plug, then loosened drain plug slowly to avoid getting oil on yourself, and drained the oil?

Enter the amount of engine oil poured in from oil filler

Checked that the oil is at the specified level?

Grease Extended Greasing Interval Drive Shaft

Used a grease pump, pumped in grease through the grease fittings marked by the arrows?

Applied grease to the spider portion until grease comes out from the seal of the cap?

REPLACE FUEL MAIN FILTER CARTRIDGE

After the engine has been operated, all parts are at high temperature, so do not replace the filter immediately. Wait for all parts to cool down before starting the operation.

High pressure is generated inside the engine fuel piping system when the engine is running.

When replacing the filter, wait for at least 30 seconds after stopping the engine to let the internal pressure go down before replacing the filter.

Do not bring any fire or flame close.

Genuine Komatsu fuel filter cartridges use a special filter that has highly efficient filtering ability. When replacing the filter cartridge, always use a genuine Komatsu part.

The common rail fuel injection system used on this machine consists of more precise parts than the conventional injection pump and nozzle.

REPLACE STEERING, HOIST OIL TANK FILTER ELEMENT

Turn the cap of oil filler (F) slowly to release the internal pressure, then remove the cap.

Remove bolt (1), then remove cover (2).

Take out the element, then wash the inside of the case and the removed parts.

Install the new element, then install cover (2) with bolt (1).

Lower the dump body and stop the engine.

Turn the cap of oil filler (F) slowly to release the internal pressure.

Remove plugs (1) of the 2 strainers at the front of the hydraulic tank.

WARNING: The parts and oil are at high temperature after the engine is stopped, and may cause burns. Wait for the temperature to go down before starting the work.

Refill capacity: 38 liters (10.04 US gal)

Remove drain plug (1), then install the standard drain hose.

Set a container in position to catch the oil, then loosen drain the valve (2) slowly to avoid getting oil on yourself, and drain the oil.

Check the drained oil, and if there are excessive metal particles or foreign material, please contact your Komatsu distributor.

Remove the drain hose, then tighten drain valve (2) and drain plug (1).

Using the filter wrench, turn filter cartridge (3) to the left and remove it.

Clean the filter holder, fill the new filter cartridge with oil, then coat the seal and thread of the filter cartridge with oil (or coat thinly with grease) and install.

Warning: This maintenance check requires trained personnel with PPE!

Sign off on the dump truck maintenance