Komatsu Bulldozer D51PX-24

Warning: Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn injury. Wait for the temperature to go down, and then start the work.

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

Stop the engine, and turn the starting switch and the battery disconnect switch keys to OFF positions when handling the battery.

Lower the work equipment to the ground and stop the engine.

Loosen the cap of oil filler port (F) slowly on the top of the hydraulic tank to release the internal pressure in the hydraulic tank.

Open the hydraulic tank inspection cover on the left side of the machine.

Remove the grommet (1) at the lower part of the hydraulic tank.

METHOD FOR LUBRICATING EQUALIZER BAR SIDE PIN

Steps for Lubricating Equalizer Bar Side Pin

METHOD FOR CHECKING OIL LEVEL IN FINAL DRIVE CASE, ADDING OIL

Steps for Checking Oil Level in Final Drive Case, Adding Oil

METHOD FOR CHECKING BATTERY ELECTROLYTE LEVEL

Steps for Checking Battery Electrolyte Level

METHOD FOR CHECKING ELECTROLYTE LEVEL WHEN IT IS IMPOSSIBLE TO CHECK FROM SIDE OF BATTERY

Material quality of these parts can change as time passes and they are likely to wear out or deteriorate. Replace them every 2 years or every 4000 hours, whichever comes sooner.

Check around the water pump for water leakage. If any abnormality is found, ask your Komatsu distributor for repair or replacement of the parts.

METHOD FOR CHECKING STARTING MOTOR

Ask your Komatsu distributor to have the starting motor checked. If the engine is started frequently, have this inspection performed every 1000 hours.

METHOD FOR REPLACING ACCUMULATOR (FOR CONTROL CIRCUIT)

The accumulator is charged with high-pressure nitrogen gas, so mistaken operation may cause an explosion, which will lead to serious injury or death, or damage. For handling, always observe the following.

NOTICE: Perform the lubrication every 10 hours when the machine is operated on the soft ground, etc., and the soil and sand are accumulated on the machine.

Lubricating Equalizer Bar Center Pin

REMARK: Lower the blade until the idler is raised 1 to 2 cm from the ground and perform lubrication. The grease will fill the whole circumference of the pin.

Sign off on the 50 Hourly Bulldozer Maintenance

Warning: This maintenance check requires trained personnel with PPE!

Warning: If inspection, cleaning, or maintenance is performed while the engine is running, dust enters into the engine and damages it. Be sure to stop the engine before performing these works.

Warning: When using compressed air, there is a danger that dirt may scatter and cause personal injury. Always wear protective equipment such as protective eyeglasses and dust mask.

Warning: When working in high places or where the foothold is poor, be careful not to fall because of the reaction when pulling out the element.

Air cleaner clogging caution lamp lights up

Inside yellow piston of dust indicator laps over the peripheral red zone

Compressed air, high-pressure water, or steam hits your body directly or dirt is scattered by use of it

Sands and dusts removed from inside of the machine

Covers installed on the bottom of the machine with the mounting bolts