SANY SY155U, Operation And Maintenance Manual

Page: 90 / 192

4-22
MACHINE OPERATION
SY155U Excavator OMM
Travel Operations
Machine Moving Precautions
WARNING
• Check the surroundings and sound the horn
before moving the machine.
• Personnel are not allowed to approach the
machine without the operator’s approval.
• The rear of the machine is a blind area. Use the
mirrors and be extremely careful when backing
up the machine. Use a signalman as needed.
Failure to follow these warnings could result in
death or serious injury.
NOTICE!
• Standard travel direction: The idlers are in the
front of the track assemblies, and the travel
motors with the sprockets are at the rear of the
track assemblies. If the travel motors are in the
front of the machine, the travel control pedals will
operate in reverse. Check the position of the
travel motors before traveling.
• Stop the machine for 5 minutes after every 20
minutes of traveling. Prolonged traveling may
strain the travel motors.
NOTE: Check the direction of the track frame before
operating the travel control levers/pedals. If the
sprockets are in the front, the machine will move
in the opposite direction of the travel control
levers/pedals.
0003635
Figure 4-36
1. Adjust the throttle control dial (1) to MAX (high idle).
2. Raise work equipment a minimum of 16 in.–20 in.

(40 cm–50 cm) above the ground.
3. Retract the boom to make sure good visibility is
obtained.
Directional Arrow
0003364
Figure 4-37
The directional arrow (1) on each of the two track frames
indicates the forward direction of the undercarriage.
Check these arrows before using the travel control
levers. When possible, face the cab in the direction of the
arrows as this is the normal position.
NOTE: When traveling in areas where the machine will be
exposed to surrounding hazards, rough surfaces
or tight maneuvering, travel with the
undercarriage in the forward position.
Travel with Undercarriage Reversed
CAUTION
Travel with the undercarriage reversed could pose
a hazard. Failure to observe and follow this
caution could result in injury.
When the cab faces backward, the machine moves
forward when the control levers are pulled and backward
when pushed.
SANY does not recommend traveling with the
undercarriage reversed.
1
1