5-23
Engine air intake system
Maintenance instruction
Cleaning cycle of dust tank .................................................................... Every 10 hours or every day
Cleaning cycle of air filter element
......................................................................
Every 100 hours of operation
Replacement cycle of air filter element ................................................... Every 500 hours of operation
1. Clean the dust tank
Clean the dust tank every 10 hours or every day.
1) Take out the dust tank and empty it regularly
(once a day for dusty environment);
2) Clean the dust tank;
3) Check the fastening of filter element by hand;
4) Check the inner shell of the filter, and no
foreign matters are allowed to enter the filter.
5) Reinstall the dust tank.
Warning: If it is checked, cleaned or replaced while the engine is running, dust will enter
the engine and cause engine damage. Shut down the engine before performing these
operations. There is a danger of dirt flying out and causing injury when using the
compressed air. Wear protective glasses, dust mask or other protective devices.
2. Clean the air filter element
The filter element of the air filter shall be cleaned every
100 hours.
1) Remove and empty the dust tank, loosen the butterfly
screw and take out the sealing washer;
2) Take out the filter element of the air filter and blow the
filter element with compressed air. The maximum
pressure of the compressed air is 6 Pa. The compressed
air pipeline is arranged from high to low, at 3 cm away
from the filter wall. Use the compressed air to blow from
the inside to the outside of the filter element when
cleaning.
3) After drying the filter element (no more than 50
℃
),
reinstall the filter element.
(Never clean the filter element by tapping it on a hard
surface.)
Air filter housing
Filter element
Gasket
Butterfly screw
Dust tank
Filter element
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...