5-12
Regular Inspection and Maintenance Table
Regular inspections and maintenance shall be performed on the machine according to the following table, with
consideration of the working hours of the machine marked by the engine timer. If the working condition of the machine is
very bad or the working intensity is high, or it is equipped with accessories such as hydraulic breaker hammer, etc., the
inspection and maintenance period of some parts shall be reduced.
Serial
numb
er
Page
number
Inspection and maintenance details
Maintenance period (total working hours)
10
50
100
250
500
1000
1
Routine inspection
• Whether there is leakage of oil, water or fuel
▲
• Appearance of mechanical parts and hoses
▲
• Fixing situation of bolts and hydraulic joints
▲
• Work condition for the working components, working lights and
indicators
▲
• Work condition for the diesel engine
▲
2
Engine fuel system
• Check the fuel level and refill
▲
• Eliminate condensate and impurities
▲
• Clean the fuel tank
▲
• Check the oil injection pressure
▲
• Replace the filter element
☆
▲
3
Engine cooling system
• Check the status of rubber hoses and clamps
▲
• Check the cooling water level
▲
• Clean the radiator fins
▲
• Replace the coolant
☆
■
• Check the coolant concentration
▲
4
Engine lubrication system and others
• Check the oil level of the engine oil (refill if necessary)
▲
• Replace the oil
☆
▲
• Replace the oil filter element
☆
▲
• Check the tension of the fan belt
☆
▲
• Check the valve clearance
☆
▲
• Check the tightness of the cylinder head
☆
▲
• Check the tightness of the engine support
☆
▲
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...