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Working in cold/hot climates
1. Work in a cold climate
Cold weather will cause special problems. At this time, you must pay special attention to protection to prevent serious
damage to the machine. Maintenance in cold weather will extend the life of the machine.
1) Electrical system: Keep the battery clean and fully charged. Check the battery cables and connectors, clean the
connectors, and apply a layer of grease to prevent corrosion.
2) Lubricant: Use lubricating oil of appropriate viscosity at each joint. Please use the oil recommended for this machine.
3) Fuel system: Whether the fuel supply is compatible with the cold climate at that time. Use the low-viscosity fuel.
Check the moisture in the fuel system. Cold weather will concentrate water in the fuel tank. Check the water in the fuel
filter every 50 hours of operation. If no moisture appears, the inspection period can be extended. If there is moisture,
check the fuel tank.
4) Cooling system: Before operating the machine in a cold climate, check the coolant and adjust the appropriate mixing
ratio. Use antifreeze suitable for ambient temperature conditions.
5) Working device: Before operating the machine, put on a low gear, start the machine slowly, then stop the machine and
operate the working device for about 10 minutes, or do not operate until all hydraulic cylinders are considered to be
working properly.
2. Work in a hot climate
To prevent damage to the machine, please do as follows:
1) Ensure that the amount of coolant in the radiator is normal.
2) Before the hot season begins, check the radiator and replace the coolant if necessary.
3) Remove all dirt and scale on the surface of the radiator and engine.
4) Check the fan rotation belt.
5) Use lubricating oil with suitable viscosity.
6) Use proper proportion of coolant in the cooling system.
7) When working in an extremely poor environment such as large dust, always check the air filter.
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...