Changing Hydraulic Oil; Bio Oil - Volvo EC330B Operator's Manual

Service and maintenance
154 Hydraulic system
A
B
C
D
S82314A

Changing hydraulic oil

Change the hydraulic oil every 2000 hours
E
Take care when changing oil. Hot oil can cause burns on
unprotected skin.
1 Swing the superstructure so that drain plug (F) at the bottom
of the hydraulic tank is located between the left and right
tracks.
S82232
2 Extend the bucket cylinder completely, retract the arm cylinder
completely and lower the boom to the ground.
3 Move the safety locking lever down to lock the system secure-
ly, See Safety locking system on page 60. and stop the en-
gine.
4 Release the internal pressure of the tank through air
breather (A).
5 Unscrew cover (B).
6 Remove O-ring (C) and strainer (D).
F
7 Place a container under the engine pan.
8 Remove the protecting cap for drain plug (F) and attach drain
G
hose (G), which is the same hose as that used for draining en-
gine oil.
9 Drain the oil.
10 Disconnect the hose and install the protecting cap.
11 After cleaning the magnetic rings of strainer (D) thoroughly, re-
install it.
12 Fill oil and re-install cover.
13 Check the oil level in the sight gauge.
The total oil capacity when changing is approx.620 liter (163.8 US
gal.)
For oil grade, See Recommended lubricants on page 177.

Bio oil

When changing from a mineral oil to a bio oil, please contact your
authorized dealer workshop.
WARNING!