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5-34
Reducer
Maintenance instruction
Rotary reducer lubricating oil capacity ................................................................................... 0.5 liters
Rotary reducer lubricating oil capacity ................................................................................... 1 liters (each side)
Check the lubricating oil level and add oil .............................................................................. every 250 hours of operation
Change the lubricating oil ...................................................................................................... every 1000 hours of operation
Check the tightening torque of the connecting bolts of the reducer ...................................... every 500 hours of operation
Warning: The oil in the reducer will heat up shortly after the machine moves. After turning
off the engine, the walking reducer and oil are still at a high temperature, which can cause
severe burns. Before starting operation, wait for the oil to cool down. Loosen the exhaust
screw plug by two to three threads and release the air pressure in the box before removing
the screw plug. It is dangerous to remove the screw plug quickly.
A: Walking reducer
1. Check the lubricating oil level of the walking reducer and fill oil
Warning: The oil in the reducer will heat up shortly after the machine moves. After turning off the
engine, the walking reducer and oil are still at a high temperature, which can cause severe burns.
Before starting operation, wait for the oil to cool down. Loosen the exhaust screw plug by two to
three threads and release the air pressure in the box before removing the screw plug. It is
dangerous to remove the screw plug quickly.
Check it every 1000 hours.
1) Prepare an Allen wrench.
2) Park the excavator on level ground.
3) Rotate the walking reducer to make the 3 screw plugs
on its outer end are perpendicular to the ground, and then
stop the machine.
4) Open the screw plug
①
and check the position of the
lubricating oil level, which should reach the lower part of
the screw plug hole
5) Refill the engine oil if necessary (according to the
following steps those are used for changing the lubricating
oil)
7) Clean the screw plug
①
and reinstall it.
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...