![background image](http://html2.mh-extra.com/html/yuchai/u27/u27_instruction-manual_4668501119.webp)
5-31
◼
The replacement cycle of hydraulic oil and filter elements during using accessories (such
as breaker hammer)
Since if the hydraulic hammer is used, the pollution of the hydraulic system is increased and corrosion is accelerated.
Compared with excavating devices, the replacement cycle of hydraulic oil and filter elements shall be shortened
accordingly, so as not to damage the hydraulic pump and other hydraulic components. The recommended replacement
cycle is as follows: (unit: hour)
Hydraulic hammer operating rate
Hydraulic oil changing cycle
Filter element replacement cycle
50
%
500
500
100
%
250
250
The above table is suitable for the 100% operation of bucket and hydraulic hammer. The replacement cycle shall
be adjusted according to the use time of hydraulic hammer or bucket when the hydraulic hammer or bucket is
operated intermittently.
Note: If a hydraulic hammer is used, the system pressure shall be adjusted appropriately according to
the requirements of the hydraulic hammer.
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...