SANY SY500H, Operation And Maintenance Manual

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4-22
MACHINE OPERATION
SY500H Excavator OMM
• Always set the throttle control dial to maintain a slow
speed while traveling up or down an incline.
• Do not turn the machine while on an incline.
• Do not travel in reverse on an incline.
Operating in Water
0004723
Figure 4-40
Observe the following when operating the machine in
water:
• Do not drive the machine into water that could reach
the center of the carrier rollers (1).
• Do not operate the machine in water unless the work
site foundation is strong enough to properly support the
machine.
• An escape tool is available for use in emergencies.
NOTICE!
If the swing bearing and swing gearbox have been
submerged in water, to prevent damage to the
machine, drain the swing gearbox oil to remove
the mud and water. Refill the swing gearbox oil
and lubricate the swing bearing.
Failure to follow this notice could damage the
machine or cause it to operate improperly.
Releasing the Machine from Mud
To release a machine that is stuck in mud, use the
following methods:
NOTES: Use cribbing to provide a firm surface if
necessary.
WARNING
Use caution when placing cribbing under a track,
since the machine is supported only by the boom
and could drop without warning. Failure to follow
this warning could result in death or serious
injury.
One Track Stuck
1. Position the boom and arm at an angle between 90°
and 110°.
2. Pivot the upper structure to position the boom over
the track that is stuck.
3. Curl the bucket so the back of the bucket touches the
ground.
4. Lower the boom to raise the track.
NOTE: Use cribbing to provide a firm surface if necessary.
5. Place cribbing under the track.
6. Raise the boom to lower the track onto the cribbing.
7. Drive the machine out of the mud.
Two Tracks Stuck
1. Position the boom and arm at an angle between 90°
and 110°.
2. Pivot the upper structure to position the boom over
the front of the machine.
3. Curl the bucket so the back of the bucket touches the
ground.
4. Lower the boom to lift the front of the tracks.
NOTE: Use cribbing to provide a firm surface if necessary.
5. Place cribbing under the tracks.
6. Raise the boom to lower the tracks onto the cribbing.
7. Cut the bucket into the ground in front of the
machine.
8. Retract the arm as with normal excavating while
driving the machine forward out of the mud.
Work Equipment Controls
NOTES:
• The joysticks will return to the neutral position when
released, and the work equipment will hold its
position.
• There are two operating modes available for the
joystick controls, the Society of Automotive
Engineers (SAE) mode and the backhoe loader
(BHL) mode.
1