XE210C Hydraulic Excavator
Operating and Maintenance Manual
75
4)
As the preheat indicator goes out, turn the key switch to START position again, and release it as soon
as the engine is started.
b)
Warm up the engine after the start.
Important: the best working temperature for hydraulic oil is 50
℃～
80
℃
. If the temperature is below
30
℃
, overwork of the machine will damage it and hydraulic parts seriously. Before the work, the
hydraulic oil should be heated up to 25
℃
. Before the completion of warm-up operation, it is forbidden
to operate the control lever or increase engine speed suddenly. Don’t let the engine run continuously
for over 20 min. at the idling or high speed.
1)
After the start of engine, the machine will automatically check if a warm-up is needed for the engine,
if so, warm-up indicator will be on.
Note
：
if warm-up indicator does not shine, it means the warm—up is not needed.
2)
At this moment, the bucket and bucket lever can be operated by turns in full stroke for 5 min. with
the interval of 30 seconds.
3)
When the hydraulic oil temperature reaches the required value, warm-up indicator will go out
showing the completion of warming up the engine.
4)
After heating the hydraulic oil, increase the engine speed and begin working.
Important: operate the machine at lower load and speed until the engine and hydraulic system have a
normal temperature.
Check after the start of engine
a)
Check or engine’s water temperature and oil pressure, as well as fuel level on all meters, indicators or
monitors, to see if they are normal.
b)
If the following indicators on the monitor continue to shine or the sound and exhaustion of engine are
not normal after the engine is started, the engine must be stopped immediately to remove the cause.
After starting the engine, the following should be confirmed:
1)
Indicator of alternator goes out.
2)
Oil pressure indicator of engine goes out.
3)
Sound and exhaustion of engine are normal.
c)
Check the level meter on hydraulic oil tank to see if oil level is within the regulated range.
d)
Check if fuel, oil or cooling fluid leak out.
Important: prevent the engine from possible damage.
