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5-13
Regular Inspection and Maintenance Table (continued)
Serial
number
Page
number
Inspection and maintenance details
Maintenance period (total working hours)
10
50
100
250
500
1000
2000
5
Engine air intake system
• Empty the dust container
▲
• Clean the air filter element
▲
• Replace the air filter element
▲
6
Hydraulic system
• Check the hydraulic oil level (refill if necessary)
▲
• Remove water and dirt from the oil tank
▲
• Change the hydraulic oil and clean the oil inlet filter screen
☆
▲
• Replace the hydraulic oil return and pilot oil line filter element
☆
▲
• Check system pressure
▲
7
Battery
• Check the electrolyte level
▲
• Check acidity and charging status
▲
8
Reducer
• Check the oil level and refuel
▲
• Replace the oil
☆
▲
• Check the tightening torque of the reducer connecting bolts
☆
▲
9
Track
• Check and adjust the tension of the track
▲
10
Thrust wheel, supporting wheels and guide wheels
• Check the tightening torque for the mounting bolts of thrust wheels
☆
▲
• Check the oil level of the guide wheel and the supporting wheel
▲
11
Lubrication
• Add lubricating oil to each lubrication point
▲
Perform at normal cycle
Perform during the first maintenance
Perform once every
spring and autumn
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...