Komatsu Bulldozer D61EX-12

WARNING: The oil is at high temperature immediately after the machine has been operated. Wait for the oil to cool down before starting the operation.

WARNING: The undercover is heavy. Never try to open or close the cover when directly beneath it. When removing bolts(2), carry out the work from the rear below the cover so that you can easily get out of the way.

Container to catch drained oil: Min 50 liters capacity

Refill capacity: 50 liters (13.2US gal)

Loosen drain plug(P) (with a slit), drain the oil, then tighten drain plug(P) again.

Remove the undercover from the rear bottom of the machine body.

Loosen mounting bolt(3) of the power train strainer, then remove cover(4).

Take out spring(5), then take out strainer(6).

Remove all dirt from strainer(6), then wash in clean diesel oil or flushing oil. Clean the case interior and the removed parts.

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.

Grease Equalizer Bar Center Pin

Check Oil Level in Final Drive Case, Add Oil

Check Oil Level in Hydraulic Tank, Add Oil

Check Level of Battery Electrolyte

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

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.