Operation
Safety, Operation and Maintenance Manual - Sep 2012
4-37
SY115C9/135C/155H Crawler Hydraulic Excavator
4.7 Working mode
The working modes selection switch (1) is
used to select a mode suitable for your work-
ing condition and purpose. In this way, effec-
tive operation can be achieved.
Select the most effective working modes
through the following steps:
●
Default working modes H will be displayed
when the start switch is ON.
●
Working modes selection key F1 is used to
set the optimum mode according to operat-
ing practices.
When pressing down the working modes
selection key (1), the working modes will be
cycled (H
→
S
→
L
→
B) at (2) on the screen.
Mode
Suitable Operations
H
Heavy-loaded operation for such
as ore excavation
S
Standard operation for such as
earth removing
B
Breaking operation performed
with breaker
L
Light-loaded operation for level-
ing ground or trimming a slope.
Note:
If breaking operation is performed in a mode
other than mode B, the hydraulic unit could be
damaged.
Never perform breaking operation in a mode
other than mode B.
Fig. 4-64
Fig. 4-65
CZ135-1103003
F1
F2
F3
F4
F5
ESC
Enter
1
S
12
Sany Hydraulic Excavator
S
Lo
A
B
C
0000
h
00
m
12:25:31
09/03/05
2
1
CZ215-1103053
5
H
5
S
5
B
5
L
Sany Hydraulic Excavator
Sany Hydraulic Excavator
Sany Hydraulic Excavator
Sany Hydraulic Excavator