XCMG XE210C Operating & Maintenance Manual page 117

XE210C Hydraulic Excavator
f) Open the access door at the hydraulic pump, check the liquid-level meter on hydraulic oil tank.
The oil level must be between the marks on the level meter, otherwise add in the hydraulic oil.
Note: the hydraulic oil tank has a certain pressure. Release the pressure of oil tank
and remove the cover carefully before removing the oil tank cover.
g) Add in the hydraulic oil, and check the level meter again.
h) Attach the cover, and ensure the components of filter and hanger rod are correctly positioned.

Drain the dirt reserve tank of hydraulic oil tank
Important: don't run the engine without oil in hydraulic oil tank.
a) Drain the dirt reserve tank of hydraulic oil tank once every 250 hours.
b) For the convenience of access, rotate the upper car by 90°, and park the machine on the flat ground.
c) Stop the engine as per the shutdown steps of engine (P20).
Important: if the shutdown steps of engine are incorrect, the
turbo supercharger may be damaged.
d) Pull the safety locking rod to LOCK (lock).
Note: the hydraulic oil tank has a certain pressure. Release the
pressure firstly, don't loosen the drain plug before cooling the oil,
because the oil may be hot and cause the severe scald injury.
e) After cooling the oil, loosen the drain plug in the bottom of hydraulic oil
tank, and drain the water and deposits.
Don't remove the plug fully, and you'd better loosen it enough to drain the water and deposits.
f) After draining the water and deposits, tighten the drain plug again.

Replacement of hydraulic oil or cleaning of oil suction filter
Note: the hydraulic oil may be hot, and the oil must be cooled before starting the
work.
a) Replace the hydraulic oil or clean the oil suction filter every 2000 hours.
b) For the convenience of access, rotate the upper car by 90°, and park
the machine on the flat ground.
c) Retract the state positioner fully with a bucket rod hydraulic cylinder,
and stretch it out fully with a bucket hydraulic cylinder.
d) Stop the engine as per the shutdown steps of engine (P20).
Important: if the shutdown steps of engine are incorrect, the turbo super charger
may be damaged.
e) Pull the safety locking rod to LOCK (lock).
f) Clean the top of hydraulic oil tank, and prevent the dirt from intruding
into the hydraulic system.
Note: the hydraulic oil tank has a certain pressure. Release
the pressure, and then remove the oil tank cover.
g) Remove the oil tank cover.
h) Draw off the hydraulic oil with a pump. The capacity of hydraulic oil in
Operating and Maintenance Manual 117
Fig.2-30
1－Dirt drain plug
Fig.2-31
1－Oil tank cover
Fig.2-32
2－Oil drain plug