Komatsu Bulldozer D61EX-12

DRAIN WATER, SEDIMENT FROM FUEL TANK

1. Drain water and sediment before starting the machine.

2. Prepare a container to receive fuel to be drained.

3. Open drain valve(1) at the bottom of the tank to drain sediment and water accumulated on the bottom, together with fuel.

At this time, take care not pour fuel over yourself.

4. After clear fuel comes out, close drain valve(1).

1. Lower the blde to the ground, then stop the engine.

2. Using a grease pump, pump in grease through the grease fittings shown by arrows.

Warning: Engine is at high temperature immediately after the machine has been operated. Wait for engine to cool down before replacing the filter. Do not bring fire or sparks near the fuel.

Prepare a filter wrench and a container to catch the fuel.

Set the container to catch the fuel under the filter cartridge.

Using a filter wrench, turn filter cartridge (1) counterclockwise to remove it.

Clean the filter holder, fill a new filter cartridge with clean fuel, coat the packing surface with engine oil, then install it to the filter holder.

When installing, tighten until the packing surface contacts the seal surface of the filter holder, then tighten it up 1/2 to 3/4 of a turn.

Loosen the knob of feed pump(2) and operate it 50 to 60 times up and down. This will bleed the air.

Push in the knob of feed pump(2) and tighten it.

After replacing the filter cartridge, start the engine and check that there is no leakage of fuel from the filter seal surface.

Is there any play in the pulley?

Is there any leakage of oil or water?

Is there any clogging of the drain hole?

If any abnormality is found, describe it here

Contact your Komatsu distributor for repairs or replacement if any abnormality is found.

Sign off on the water pump check

CHANGE OIL IN HYDRAULIC TANK, REPLACE HYDRAULIC OIL FILTER ELEMET AND CLEAN SUCTION STRAINER

WARNING: The parts and oil are at high temperature after the engine is stopped, and may cause serious burns. Wait for the temperature to go down before cleaning the hydraulic tank strainer.

When the oil filler cap is removed, oil may spurt out, so turn the cap slowly to release the internal pressure,then remove it carefully.

Container to catch drained oil: Min. 44 liters capacity

Refill capacity: 44 liters (11.62US gal)

Lower the blade on the ground securely, stop the engine and slowly turn the cap of oil filler(F) to release the internal pressure. Then, remove the cap.

Remove the cover(1) at the bottom of the hydraulic tank.

Place a container to receive drained oil on the track under the drain hole.

Loosen drain valve(2) at lower side of hydraulic tank to drain the oil, then tighten valve(2) again.

CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT

● If inspection, cleaning, or maintenance is carried out with the engine running, dirt will get into the engine and the engine will suffer damage. Always stop the engine before carrying out these operations.

● When using compressed air, there is danger that dirt may be blown around and cause serious injury.

Always use safety glasses, dust mask, and other protective equipment.

1. Open the left engine side cover.

To prevent entry of dirt and dust, cover the air connector side of the rear end of the air cleaner with a clean cloth and adhesive tape.

2. If transparent part(2) of dust indicator(1) is red, clean the air cleaner element.