SY215C LC/SY225C LC Excavator OMM
Machine Operation
SANY
Operation and Maintenance Manual — 1219
4-39
TABL
E OF
CONT
E
N
TS
INTRODUCTION
SAFE
T
Y
MACHIN
E
CONTROLS
MACHINE
OP
ERA
T
IO
N
MA
INTENANCE
S
P
E
CI
F
ICA
T
ION
S
OP
T
IO
N
A
L
EQUI
PMENT
RECOMMENDED OPERATIONS
Backhoe Operation
Fig. 4-47
Backhoe operation is used for digging an area lower than
the machine. The digging range of the arm is from 30° to
45°. The angle may vary according to the digging depth.
Maximum digging force can be obtained when the angle
between the boom and the arm and the bucket cylinder and
the bucket linkage are both 90°.
WARNING!
• Contact the proper authority before any digging to make sure that all underground hazards
have been located.
• To avoid injury, never allow any personnel to be within the work zone of the machine.
• Be aware of all crush points on the machine and make sure that all personnel keep clear of
these areas to prevent injury.
• To prevent injuries, avoid moving any travel control lever or pedal to abruptly change the
direction of the machine, and avoid stopping the machine suddenly by releasing the lever
or pedal while traveling at high speed.
Failure to follow these warnings could result in injury or death.
90°
90°
Fig. 4-48
