XE210C Hydraulic Excavator
Operating and Maintenance Manual
112
Maintenance and repair
Safety rules
Safety maintenance
a)
In order to avoid any accident:
1)
Learn of the maintenance regulations before the work.
2)
Keep the work area clean and dry.
3)
Don’t spray water or steam in the cab.
4)
Don’t lubricate or maintain the machine with oil during the movement.
5)
Prevent the hand, foot and clothes from contacting the rotating part.
b)
Before maintaining the machine:
1)
Park the machine on the level ground.
2)
Fall the bucket to the ground.
3)
Run the engine for 5 minutes at low speed and empty load.
4)
Turn the key switch to OFF (off), and stop the engine.
5)
Move the control lever several times to release the pressure in hydraulic system.
6)
Remove the key from the key switch.
7)
Hang up the nameplate “No Operation” on the control lever.
8)
Pull the safety locking rod to LOCK (lock).
9)
Cool the engine.
c)
If the maintenance must be applied during the running of engine, a qualified driver must exist in the
cab.
d)
If the machine must be lifted during the maintenance, maintain the angle
between the movable arm and bucket arm within 90° to 110°, support any
lifted part of machine firmly, and don’t work under the machine lifted by the
movable arm.
e)
Check the parts at regular intervals, and repair or replace them as per the
demands.
f)
Keep all the parts in good working state, and install them correctly.
g)
Replace the worn or damaged parts in time, and remove any accumulated grease, oil or scrap.
h)
Adopt inflammable cleaning oil, and prohibit to use the fuel or gasoline or other
easily flammable oil to clean the part or surface.
i)
Disconnect the grounding cable (-) of battery before regulating the electric
system or welding on the machine.
j)
Apply the sufficient illumination to the working places. In case of working under or inside the
machine, use the working lamps with shields always, otherwise the breakage of bulb may ignite the
spilled fuel, engine oil, anti-freezing fluid or washing fluid, etc.
Protection against separation of fragments
If the fragments are flied into the eye or bounced to any other part of body,
they will cause the severe injuries to body.
Fig.2-13
Fig.2-14
Fig.2-15
Fig.2-16
