![background image](http://html2.mh-extra.com/html/yuchai/u27/u27_instruction-manual_4668501139.webp)
6-10
Grab bucket
The grab buckets are used for digging or loading on one
side of a ditch or confined space. It is applicable to the
foundation works such as cleaning up the sundries in the
sewage ditch and dredging the passageway of the upper
and lower sewers.
1. Grab bucket installation
1) First remove the bucket, bucket cylinder, connecting
rod, rocker or other accessories (as shown by the arrow in
Fig. 1);
2) Install the grab bucket directly on the stick (as shown
by arrow
①
in Fig. 2);
3) Install the relevant grab bucket pipe assembly onto the
connecting seat of the stick body (as shown by arrow
②
in Fig. 2);
4) Then connect the oil inlet of the large chamber of the
original bucket oil cylinder to the oil inlet of the large
chamber of the grab bracket oil cylinder, and connect the
oil inlet of the small chamber of the original bucket oil
cylinder to the oil inlet of the small chamber of the grab
bucket oil cylinder (as shown by the arrow
③
in Fig. 2).
2. Grab bucket operation
You can control the stick to operate the distance of the
grab bucket by operating the left pilot valve handle; you
can control the lifting and lowering of the boom and the
retraction of the grab bucket by operating the right pilot
valve handle, in order to carry out excavation operations.
3. Precautions for grab bucket operation
1) For safety, it is necessary to avoid sudden walking,
turning and stopping of the machine.
2) Make the bucket teeth vertical when digging.
Fig. 1
Connected to bucket
cylinder rubber hose
assembly
Connected to grab
bucket cylinder port
Fig. 2
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...