Operation
Safety, Operation and Maintenance Manual - Sep 2012
4-41
SY115C9/135C/155H Crawler Hydraulic Excavator
4.8.7 Sudden shift of travel speed dur-
ing fast traveling
1. Never maneuver any control lever or pedal
abruptly to change the action of machine.
2. Never suddenly change the position of
control lever or pedal from forward (A) to
reverse (B), or vice versa.
3. Never stop the machine by suddenly
releasing the control lever or pedal while
traveling at high speed.
1
A
B
2
3
CZ335-1103186
Fig. 4-71
4.9 General Operation
4.9.1 Traveling operation
Traveling over road shoulders, stumps or other
barriers could bring strong impact on the chas-
sis (especially the tracks), and cause damage
to the machine. In this case, remove the bar-
riers or bypass them. You can also take other
actions to avoid barriers.
If there is no way to avoid traveling over barri-
ers, drive your machine slowly while keeping
its work equipment close to ground and run-
ning the track over barriers along the track's
centerline.
CZ335-1103187
Fig. 4-72
Fig. 4-73
CZ135-1103004
F1
F2
F3
F4
F5
ESC
Enter
1
S
12
S
Lo
A
B
C
0000
h
00
m
12:25:31
09/03/05
2
1
Sany Hydraulic Excavator
4.9.2 High-speed travel
Run your machine slowly on rough surfaces
with rocky bed or large stones. Place the ten-
sion wheel in forward direction while traveling
at high speed.
●
Press F3 (1) to change the travel speed.
The travel speed (Hi or Lo) will be dis-
played at (2) above the F3 key.
