SANY SY155U, Operation And Maintenance Manual, Page: 101 / 192

MACHINE OPERATION
4-33 SY155U Excavator OMM
If the machine is trapped in mud and is unable to get out
under its own power, use wire rope(s) (2) attached to the
frame (1) to assist in its removal.
Towing Point for a Light Load
WARNING
• Make sure the equipment used for towing has the
correct capacity rating.
• A shackle must be used.
• Keep the wire ropes/slings horizontal and parallel
to the tracks.
• Drive the machine at low speed.
• Never use a broken chain, worn wire rope, or a
bent tow hook to tow the machine.
• Never jerk the chain or wire rope.
Failure to follow these warnings could result in
death or serious injury.
0002914
Figure 4-69
The machine is equipped with a towing point (1) on the
frame that can be used to tow a light load.
Bucket Remove and Install
CAUTION
• Driving a pin with a hammer can cause metal
pieces to fly off, leading to injuries. Make sure
the surrounding area is clear of all personnel,
and wear goggles, a hard hat, protective gloves,
and other personal protective equipment (PPE)
during these operations.
• Do not stand behind the bucket when removing
pins. Keep hands and feet clear of the underside
of the bucket during removal.
• Do not use hands or fingers to aid in bore
alignment.
Failure to follow this caution could result in injury.
Remove the Bucket
1. Prepare the machine for service. See “Maintenance
Safety” on page 2-5.
NOTE: Before removing the pins, slowly lower the bucket
to a level where it just touches the ground. If too
much down force is used, resistance on the pins
could increase, causing difficulty during removal.
2. Place the bucket on level ground and block the
bucket to prevent movement.
000227S
Figure 4-70
3. Remove two retaining nuts and fastener (1) that
secure the arm attachment pin (2) to the bucket (3).
000228S
Figure 4-71
4. Remove two retaining nuts and fastener (4) that
secure the link assembly attachment pin (5) to the to
the bucket.
1
1
2
3
4
5