4-27
1) Turn the platform so that the working device
and the bulldozer shovel are in the same
direction. Start the engine, adjust the working
device to the posture shown in the right figure,
fully raise the boom, and fully retract the stick
and bucket.
2) Turn off the engine and lift the left control box
to lock the machine.
3) Check whether the area around the machine
is safe, and then get off the machine. Close the
cab doors, windows and engine hood.
4) Stably hook the lifting hole of the boom (the
lifting hole is marked with a lifting hook sign) by
using a hook, and then use a wire rope to pass
between the drive wheel and the first thrust
wheel.
5) Select the lifting position of the wire rope so
that it is directly at the center of gravity of the
machine (the center of gravity of this model is
above the center of rotation), as shown in the
right figure.
6) Check whether it will cause a change in posture if the hydraulic oil circuit at the top of the boom
cylinder leaks oil when lifting.
7) Stop the lifting operation when the machine leaves the ground and check whether the machine is
balanced. Continue the lifting operation when the machine is stable.
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...