Travel Controls - SANY SY115C9 Safety, Operation And Manitenance Manual

SY115C9/135C/155H Crawler Hydraulic Excavator

3.5.2 Travel controls

● Do not put your foot on any pedal during operation, except for travel. Unintended ped-
aling could lead to sudden move of your machine and cause severe accidents.
● Take extra care when driving or steering the machine with pedals. Do not put your foot
on any pedal when they are not used.
Control levers are used to change travel direc-
tion of your machine. Description in brackets
is given for pedal operation.
a - Forward travel:
Push the control lever.
(Pedal tilts forward. )
b - Backward travel:
Pull the control lever.
(Pedal tilts backward. )
N - (Neutral Position): Machine stops.
Remark:
When track frame faces backward direction,
travel direction is opposite to maneuvering di-
rection of travel control lever. (Machine moves
forward when you pull control levers and back-
ward when you push them. The left and right directions are reversed too.)
Check direction of track frame before you maneuver travel control levers. (If the sprocket is in the
rear, the track frame faces the front.)
With automatic deceleration function, travel control levers can be used to change engine speed
through the following ways.
● When travel control levers and joystick controls are in neutral position, engine speed will drop
to medium level even if fuel control dial is set above medium speed. If you maneuver any con-
trol, engine speed will rise to the level set by fuel dial control.
● If travel control levers and joystick controls are in neutral position, engine speed will decrease
by 100 rpm. About four seconds later engine will drop to the level (about 1,400 rpm) set for
automatic deceleration.
WARNING
Safety, Operation and Maintenance Manual - Aug 2012
a
N
a
Fig. 3-51
System Functions
a
N
b
b
a
b
b
CZ335-1103054
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