5-21
Engine lubrication system
Maintenance instruction
Oil volume ............................................................................................................................................................... 3.4 liters
Check oil level ...................................................................................................... Every 10 hours of operation or every day
Change the oil or replace the oil filter element ...................................................................... Every 250 hours of operation
1. Check the oil level
Check the oil level once before the new machine is put
into use, and check it every 10 hours thereafter.
1) Park the excavator on a level ground and stop the
engine.
2) Open the engine hood, take out the oil dipstick, and
observe the oil sticky part on the oil dipstick. The oil level
should be located between the minimum (L) and
maximum (H) marks.
3). If necessary, you can fill oil from the oil port to make
the oil level reach the specified value.
Warning: After the engine is turned off, the parts and oil are still at high temperature, which
may cause serious burns. Before starting maintenance, wait for the temperature to drop.
2. Change the engine oil
It shall be replaced after 50 hours of the working of new
machine, and then it will be replaced every 250 hours.
1) Park the excavator on a level ground and stop the
engine, and drain the oil while it is hot.
2) Remove the oil drain plug to make the oil flow out
completely.
Yanmar 3TNV76-PYU
Avoid inhaling engine oil vapor, swallowing, and contacting with used engine oil for a long
time.
Oil filler port
Oil filter
Oil drain port
Oil
dipstick
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...