Komatsu Hydraulic Excavator PC400LC-5

CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL

CHECK LEVEL OF BATTERY ELECTROLYTE

Steps to check battery electrolyte level

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

Steps to change oil and replace filter

REPLACE HYDRAULIC FILTER ELEMENT

Steps to replace hydraulic filter element

LUBRICATE SWING CIRCLE (3 POINTS)

24.6.1 REPLACE FUEL FILTER CARTRIDGE

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.

When cranking the engine, confirm the safety around the engine, as the engine may start.

Prepare a filter wrench and a container to catch the fuel.

1. Set the container to catch the fuel under the filter cartridge.

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

3. 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.

24.8.1 CHANGE OIL IN FINAL DRIVE CASE

Set the UP mark at the top, with the UP mark and plug P perpendicular to the ground surface.

Set a container under plug P to catch the oil.

Remove plugs (P) and (E) with the handle and drain the oil.

Check the O-rings in the plugs for damage. If necessary, replace with new ones.

Add engine oil through the hole of plug F.

When the oil overflows from the hole of plug (E. install plug E. Tightening torque of plugs P and E: 70 ± 10 Nm (7 ± 1 kgm, 50 ± 7 lbft)

24.8.2 CHANGE OIL IN HYDRAULIC TANK, CLEAN STRAINER

Check for clogging of the drain hole

Sign off on the water pump check

Carry out the following maintenance only after the first 250 hours.

CHECK ENGINE VALVE CLEARANCE, ADJUST

For details of the method of replacing or maintaining, see the section on EVERY 500 HOURS and 2000 HOURS SERVICE.;