Maintenance
Safety, Operation and Maintenance Manual - Aug 2012
5-88
SY115C9/135C/155H Crawler Hydraulic Excavator
5.8.8.2 Hydraulic tank
fi
lter screen - clean
1. Turn the butter
fl
y nut on the breather valve
and press the venting button.
2. Loosen the four bolts and remove the cap
(1). When the cap is removed, it may fly
out due to the action of the spring (2). In
this case, hold down the cap when remov-
ing the bolts.
3. Hold the top end of the rod (3) and pull it
upward in order to remove the spring (2)
and the screen (4).
4. Clean the screen (4) of all dirt. Flush it with
cleaning oil. Replace the screen if dam-
aged.
5. During installation, fix the screen (4) to
the bigger part (5) of the oil tank before
assembling.
6. When assembling, take advantage of the
bulged part of the cap (1) to hold the spring
(2) before tightening the bolts.
When the engine has just been stopped,
the parts and oil are still hot and can cause
serious burn. Wait until they are cool
enough before doing the job.
Always prepare your machine as required
and lock/tag it out before proceeding.
See
“Preparing the machine” on page 2-58 and
“Lock-out and tag-out” on page 2-60.
CZ335-1104080
Breather valve
Butterfly nut
1
2
3
4
5
CZ335-1104093
Fig. 5-98
Fig. 5-99
WARNING
