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4-16
Construction work guide
1. Backhoe operation
The backhoe is suitable for digging below the machine.
When the machine is in the state shown in the
figure on the right, that is, when the bucket
cylinder and the connecting rod, and the stick
cylinder and the stick are at 90°, the maximum
pushing force of the bucket can be obtained.
Effective use of this angle when digging can optimize
work efficiency.
The digging range of the stick is from a 45°
angle away from the machine to a 30° angle
toward the machine.
There may be some differences depending on the digging
depth, but try to operate within the above range instead of
operating the cylinder to the end of its stroke.
Note: It is best to dig hard rocky ground after
breaking it by other methods. This will not only
reduce the damage to the machine but also be
more economical.
2. Loading operation
In places where the rotation angle is small, the dump truck
can be parked in a place where the operator can easily
see it so that the operation can be carried out more
effectively.
If loading from the rear of the dump truck is more
convenient than loading from the side of the dump truck,
the loading capacity is larger.
Summary of Contents for U27
Page 1: ...U27Hydraulic Excavator Instruction Manual Guangxi Yuchai Heavy Industry Co Ltd...
Page 5: ...1 1 Preface...
Page 17: ...2 1 Safety regulations...
Page 44: ...3 1 Parts introduction...
Page 49: ...3 6 Panel meter Oil level pointer Timing display Water temperature pointer Indicator area...
Page 55: ...4 1 Operation guide...
Page 89: ...5 1 Maintenance...
Page 130: ...6 1 Accessories guide...