Doosan DX140LC, Operation And Maintenance Manual

Page: 154 / 297

OP000598 Operation
3-18
5. On rough, frozen or uneven terrain, travel slowly.
6. Travel straight up or down slopes, never diagonally across
the slope. See Figure 35 and Figure 36. Extend the arm
and lower the boom to keep the bucket about 20 - 30 cm (8
- 12 in) off the ground. If the machine starts to slide or
becomes unstable, lower the bucket to regain control. If the
engine stalls, lower the bucket, make sure that all controls
are in the neutral position and restart the engine.
NOTE: Even though engine stops on a slope, do not
operate swing control. The hydraulic
accumulators may cause the unit to swing.
NOTE: Do not open or close operator's door on a slope.
Make sure door is latched.
7. If dirt or mud builds up in the track frame, raise each track
and rotate and clean that track.
FG000212
Figure 34
Figure 35
FG000126
20~3
0 Cm
WARNING!
When traveling, keep bucket from 20 - 30 cm (8 - 12 in)
above ground.
Do not travel backward on a slope.
Never turn or travel crosswise on a slope.
Choose a safe alternate route before climbing a slope.
If excavator starts to slip or becomes unstable, lower
the bucket immediately into the ground, using it as a
brake.
Avoid working on slopes, because there is a danger of
overturning by becoming unbalance while swinging
and performing front attachment operations.
It is very dangerous to swing towards bottom of slope
with a loaded bucket.
In unavoidable cases level the slope with fill soil, to
make the vehicle as horizontal as possible. See Figure
34.
Do not travel on slopes more than 30° due to turnover
danger.
FG000128
20~30 Cm
Figure 36
FG000376
Figure 37
CAUTION!
When using the boom and arm to lift any portion of the
machine, roll the bucket until the round base is against
the ground. The angle of the arm to the boom should
be at 90°.