Komatsu Bulldozer D85PX-15

Warning: This maintenance check requires trained personnel with PPE!

Warning: Immediately after the engine is stopped, the cooling water is at high temperature and the radiator is under high pressure.

Warning: When the engine is running, never come close to the fan at the front of the machine.

Warning: When the engine is running, it is extremely dangerous to go under the machine during the

See Section "B REGULATION AREA (PAGE 4-18)".

REPLACE HIGH-PRESSURE PIPING CLAMPS

Contact your Komatsu distributor to have the engine high-pressure clamps replaced.

REPLACE FUEL SPLAY PREVENTION CAPS

Contact your Komatsu distributor to have the fuel spray prevention cap replaced.;

CHANGE OIL IN HYDRAULIC TANK, REPLACE HYDRAULIC OIL FILTER ELEMENT, CLEAN HYDRAULIC TANK STRAINER

Steps to change oil in hydraulic tank

CHANGE OIL IN DAMPER CASE, CLEAN DAMPER BREATHER

Steps to change oil in damper case

CHECK PIVOT BEARING OIL LEVEL, ADD OIL

Steps to check pivot bearing oil level

CHECKING CHARGE PRESSURE OF NITROGEN GAS IN ACCUMULATOR (FOR CONTROL CIRCUIT)

Steps to check charge pressure of nitrogen gas in accumulator

WARNING: Parts and oil are at high temperature immediately after the engine is stopped and may cause serious burns. Wait for the oil temperature to go down before performing this operation.

Refill capacity: 38 liters (10.04 US gal)

Prepare a socket wrench and filter wrench.

Remove the covers at the bottom left at the front of the machine and on the side face, and put a container directly underneath to catch the drained oil.

Loosen drain plug (P) (with a slit) slowly to avoid getting oil on yourself, and drain the oil.

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

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

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

REPLACE ACCUMULATOR (FOR CONTROL CIRCUIT)

Accumulator replaced without disassembly, exposure to flame, puncturing, welding, or impact?

WARNING: If operations are continued after the performance of the accumulator has dropped, it will be impossible to release the remaining pressure in the hydraulic circuit if there should be a failure on the machine. Please ask your Komatsu distributor to replace the accumulator.

CHECK WATER PUMP: No oil and coolant leakage, or clogging of the drain hole?

CHECK INJECTOR: See Section 'B REGULATION AREA (PAGE 4-18)'.

REPLACE INJECTOR ASSEMBLY: See Section 'A REGULATION AREA (PAGE 4-18)'.

CHECKING FOR LOOSENESS OF HIGH-PRESSURE CLAMP, HARDENING OF RUBBER: No loose bolts or hardening of rubber parts at clamps (1) to (10)?

NOTICE: If the engine continues to be used when there are loose bolts, hardened rubber, or missing parts, there is danger of damage or breakage occurring due to vibration and wear at the connections of high-pressure piping. Always check that the proper high-pressure piping clamps are correctly installed.

CHECKING FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER: No missing caps or loose bolts, and the rubber has not hardened?