Komatsu Hydraulic Excavator 400LC-5

1. Set the work equipment in the greasing posture below, then lower the work equipment to the ground and stop the engine.

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

3. After greasing, wipe off any old grease that was pushed out.

1. Boom cylinder foot pin (2 points)

2. Boom foot pin (2 points);3. Boom cylinder rod end (2 points)

4. Arm cylinder foot pin (1 point)

5. Boom-Arm coupling pin (1point)

6. Arm cylinder rod end (1 point)

24.2.1 CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT

Is the red piston visible in the transparent position of the dust indicator?

Is the air cleaner body interior and the cover clean?

Are there small holes or thinner parts found on the element after cleaning?

Are the folds or gasket or seal of the element damaged?

Is the cleaned element installed and fixed with the wing nut?

Are the seal washer or wing nut broken?

Is the evacuator valve clean after cleaning?

24.2.2 CLEAN INSIDE OF COOLING SYSTEM

Check Swing Pinion Grease Level, Add Grease

Clean and Inspect Radiator Fins, Oil Cooler Fins

Sign off on the 500 Hourly Hydraulic Excavator Maintenance

24.5.1 CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL

Is the TOP mark at the top, with the UP mark and plug perpendicular to the ground surface?

Is the oil level 10 mm below the bottom of the plug hole?

Is the oil level still too low after rotating the sprocket one turn?

Is the oil level correct after adding oil through the hole in plug F?

24.5.2 CHECK LEVEL OF BATTERY ELECTROLYTE

Is the electrolyte at the specified level (10 to 12 mm (0.40 to 0.47 in) above the plate)?

24.5.3 CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE

Is the drained oil free of excessive metal particles or foreign material?

24.7.1 CHANGE OIL IN SWING MACHINERY CASE

Set an oil container under drain valve P under the machine body.

Loosen drain valve P under the body, drain the oil, then tighten the drain valve again.

Add the specified amount of engine oil through gauge hole G.

After refilling, install bleeding plug 1.

24.7.2 CHECK OIL LEVEL IN DAMPER CASE, ADD OIL

Open the door on the right side of the machine.

Remove plug G and check the oil level.