SANY SY500H, Operation And Maintenance Manual

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MACHINE OPERATION
4-25 SY500H Excavator OMM
Recommended Applications
WARNING
• Contact the site supervisor before any digging to
make sure that all underground hazards have
been located to avoid injury or death.
• To avoid injury, never allow any personnel within
26 ft. (8 m) of the machine while it is moving.
• Be aware of all crush points on the machine and
make sure 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
death or serious injury.
Backhoe Operation
0000703
Figure 4-49
Backhoe operation is used for digging an area lower than
the machine. The digging range of the arm is between
30° and 45°. The angle may vary according to the digging
depth.
0000704
Figure 4-50
Maximum digging force can be obtained when the angle
between the boom and the arm and the angle between
the bucket cylinder and the bucket linkage are both 90°.
Digging a Trench
0000705
Figure 4-51
Trench work can be done efficiently by using a suitable
bucket and positioning the tracks parallel to the trench
line. When digging a wider trench, excavate the sides
then remove the middle.
Loading Operations
0000706
Figure 4-52
Loading material from the rear of the truck is more
convenient than from the side.