SANY SY155U, Operation And Maintenance Manual, Page: 43 / 192

MACHINE CONTROLS
3-13 SY155U Excavator OMM
A regeneration does not have to be performed
immediately after the manual regeneration icon flashes
yellow, but ignoring the warning will change the
regeneration indicator to a red status, where immediate
stationary regeneration is required.
NOTE: Unlike automatic regenerations, stationary
regenerations require that the machine be parked with the
engine running and equipment not operated until the
entire regeneration process is completed.
Refer to “Manual Regeneration” on page 4-20.
Work Mode Switch
Use the work mode switch (10) to switch between light
duty work mode (L), breaker work mode (B), standard
duty work mode (S), and heavy duty work mode (H).
The selected work mode letter L, B, S, or H (19) will
appear on the display monitor as well.
NOTE: The number (20) to the right of the work mode on
the display monitor is the throttle dial position
indicator, and displays from 1–10.
0003695
Figure 3-16
NOTE: LED status lights on the work mode switch will
illuminate to indicate the mode selected as follows:
• No LED indicator lights = light duty work mode (L).
• One LED indicator light = breaker work mode (B).
• Two LED indicator lights = standard duty work mode
(S).
• All three LED indicator lights = heavy duty work mode
(H).
Auto Idle Switch
The auto idle switch (13) enables or disables the auto
idle function. The auto idle switch LED lights are on or off
to indicate system status:
LED lights off = auto idle disabled.
LED lights on = auto idle enabled.
Enable auto idle when using the machine with long
pauses in work operations. Auto idle reduces engine
speed when the machine is not being operated. This
reduces fuel consumption by 5% to 10% and reduces
engine wear.
Auto Idle Function
0003636
Figure 3-17
The auto idle function will reduce fuel consumption and
noise levels during periods of inactivity.
Pressing the auto idle switch on the right switch console
activates/deactivates the auto idle function after the
engine is started. See “Switch Console” on page 3-10.
With the engine running, the auto idle function works as
follows:
• If the joysticks (21) and travel controls (22) remain in
their neutral positions for 5 seconds or longer, the
engine idle speed drops from the currently set idle
speed to the factory-set auto idle speed
(approximately 1350–1400 rpm).
• If either of the joysticks or the travel controls are
operated, or if the throttle control dial is adjusted
while the engine is idling at the auto idle speed, the
engine speed automatically returns to its higher,
previously set level or the newly set level.
19 20
22
21 21