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6-8
Daily inspection of hydraulic breaker hammer
Carry out the daily inspection and maintenance of the hydraulic breaker hammer according to the following table.
Serial
number
Inspection or
maintenance items
Check points
Maintenance method
1
Check whether the bolts and
nuts are loose or missing
Body bolts and side plate bolts
Tighten the bolts or reinstall new bolts
2
Check the hose parts for
looseness, hose damage or oil
leakage
Breaker hammer hydraulic
pipeline
High pressure tubing
Re-tighten the loose part and
replace the severely damaged part
3
Lubrication
It is better to use 10ml/time
lubricating oil for lubrication
before operation and after each
continuous operation for 2 to 3
hours.
Lubricating oil shall be filled at
5-10 times for each lubrication.
Fill the lubricating oil from the
lubricating oil filling hole at front of the
breaker hammer
4
Check the capacity and pollution
of hydraulic oil
Condition of hydraulic oil
The hydraulic oil quality changes due
to different working environments.
The simple way to judge the quality of
the oil is to observe whether the color
of the oil changes.
If the oil quality deteriorates seriously,
please drain the hydraulic oil in the
hydraulic oil tank and clean the oil
tank before filling new hydraulic oil.
Fill the lubrication
grease after the
drill rod is pressed
into the ground
Drill rod
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...