If there is still fuel leakage, repeat steps 2 to 4 to remove the filter cartridge, and if any damage or pinched for-
eign material on the packing surface is found, replace it with a new cartridge and repeat steps 5 to 10 to install
it.
METHOD FOR CHECKING ALL TIGHTENING POINTS OF ENGINE INTAKE PIPE
CLAMPS
Ask your Komatsu distributor for checking the tightening of the clamps between the air cleaner - turbocharger -
aftercooler - engine.
METHOD FOR REPLACING HYDRAULIC TANK BREATHER ELEMENT
• Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn in-
jury. Wait for the temperature to go down, and then start the work.
• When removing the oil filler cap, the oil may spout out. Turn it slowly to release the internal pres-
sure, then remove it carefully.
1.
Remove the bolts (1) (4 pieces), and open hydraulic tank
top cover (2).
2.
Remove the nut (4) of breather assembly (3) at the top of
the hydraulic tank, then remove the cover (5).
3.
Replace the filter element (6) with a new one.
4.
Install the cover (5) and nut (4).
In order not to damage the threaded portion of nut, tighten
nut (4) by hand until it is seated, then tighten it 15 to 30° by
using a tool.
NOTICE
If the breather assembly (3) is removed for replace-
ment, apply a tool to the bolt (7) and tighten it.
Tightening torque: 30 to 40 Nm
METHOD FOR REPLACING DEF TANK BREATHER ELEMENT
Do not replace the element immediately after the engine is stopped.
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