Komatsu Wheel Loader WA270-8

Warning: Immediately after the engine is stopped, the parts are still very hot. Do not replace the filter immediately. Wait for all of parts to cool down before starting the work.

Warning: 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.

Notice: Komatsu genuine fuel filter cartridges use a special filter that has highly efficient filtering ability. When replacing parts, Komatsu recommends using Komatsu genuine parts.

Notice: The common rail fuel injection system used on this machine consists of more precise parts than those in the conventional injection pump and nozzles. If any cartridge other than a Komatsu genuine filter cartridge is used, dust or dirt may get in and cause problems with the injection system. Never use a substitute.

Notice: When performing inspection and maintenance of the fuel system, be careful not to let any foreign material get in, more than ever before. If dust sticks to the fuel system, wash it off thoroughly with fuel.

Notice: After removing the filter cartridge, fuel drops fall down from the filter head. In order to prevent outflow of the fuel, be sure not to leave the machine while the filter cartridge is being removed.

Open the engine side cover on the right side of the machine.

Place a container under the filter cartridge to catch the fuel.

Turn filter cartridge counterclockwise by using the filter wrench, and remove it.

METHOD FOR LUBRICATING WORK EQUIPMENT

Did you pump in grease until new grease comes out through the gaps on the right and left (or top and bottom) of the lubricated portion?

Did you wipe off any old grease that is pushed out?

Shorten the greasing interval than usual in a job site where the machine works for severe operations, or for continuous operations that last 8 or more hours.

Did you grease the machine once for every 10 hours until the initial 100 hours are reached?

METHOD FOR LUBRICATING REAR AXLE PIVOT PIN

Did you pump in grease through the grease fittings?

Did you wipe off any old grease that is pushed out?

METHOD FOR CHANGING OIL IN HYDRAULIC TANK, CLEANING HYDRAULIC TANK STRAINER

• 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 removing the oil filler cap, the oil may spurt out. Turn it slowly to release the internal pressure, then remove it carefully.

• Container to catch the drained oil

1. Lower the bucket to the ground with its bottom level, apply the parking brake, then stop the engine.

2. Remove the bolts (1) (2 pieces) and remove the cover (2).

METHOD FOR LUBRICATING STEERING CYLINDER PIN

Steps for lubricating steering cylinder pin

METHOD FOR CHECKING BATTERY ELECTROLYTE LEVEL

Steps for checking battery electrolyte level

METHOD FOR CHECKING ELECTROLYTE LEVEL FROM SIDE OF BATTERY

Steps for checking electrolyte level from side of battery

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

Steps for checking electrolyte level when it is impossible to check from side of battery

METHOD FOR TESTING PARKING BRAKE

Replace defined life parts every 2 years or every 4000 hours, whichever comes sooner.

Use the special grease for drive shaft, and perform greasing every 4000 hours or every 2 years.

Part No. of special grease for drive shaft

Check for leakage of water and oil around the water pump.

Ask your Komatsu distributor to have the starting motor checked.

Ask your Komatsu distributor to perform the work on air conditioner compressor.