Method For Replacing Hydraulic Tank Breather Element - Komatsu H75051 Operation & Maintenance Manual

MAINTENANCE PROCEDURE
1.
Remove the bolts (1) (4 pieces) and remove the cover (2).
2.
Place a container to catch the drained oil under the filter
cartridge (3).
3.
Turn the filter cartridge (3) counterclockwise by using the
filter wrench, and remove it.
4.
Clean the filter head.
5.
Fill the new filter cartridge with clean oil, coat the seal sur-
face and thread portion with clean oil (or thinly apply the
grease to it), then install the filter cartridge.
Tightening torque : 54 to 66 Nm {5.5 to 6.7 kgm}
6.
Install the cover (2) with bolts (1) (4 places).
7.
Check the hydraulic oil level.
Check that it is at the specified level by referring to "METHOD FOR CHECKING OIL LEVEL IN HYDRAUL-
IC TANK, ADDING OIL (4-46)".
8.
Check the hydraulic oil filter for oil leakage.

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 spurt out. Turn it slowly to release the internal pres-
sure, then remove it carefully.
1.
Remove the bolts (1) (2 pieces) and bolts (2) (2 pieces),
then remove the covers (3) and (4).
4-68
k k
WARNING
MAINTENANCE