Operation & Maintenance Manual
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LG918 Wheel Loader
84
z
Clean out the in bucket. Park the machine on level
ground and put the transmission lever in the neutral
position. Pull the braking control lever. Start the
engine and keep in the idle status for 10 minutes.
Raise and lower the lift arm several times, and tilt the
bucket forward and backward several times.
z
Raise the lift arm to the highest position; tilt the
bucket backwards to the extreme position and shut the
engine.
z
Push the bucket control lever forward to let the bucket
tilt forward freely by its weight. Drain out the oil in
the bucket cylinder. After the bucket has tilted to the desired position, push the lift arm control
lever forward to let the lift arm fall down by its weight freely. Drain out the oil in the lift arm
cylinder.
z
Loosen the oil releasing spherical valve on the oil tank
bottom to drain the oil to the container. Open the oil inlet
cover at the same time to fasten the draining process.
z
Disassemble the flange cover of the oil box bottom. Clean
the oil tank inside.
z
Disassemble the flange cover of the oil box top, and clean
the oil inlet port, the oil recycle port and the oil recycle elements. If the elements are broken,
please replace with a new one.
z
Tighten the flange cover and oil releasing spherical valve again.
z
Add oil to the oil inlet port at the top of the left bench, until the oil level reaches the middle value
of the indicator. Tighten the oil inlet port cover. Never add oil directly to the oil tank without oil
filter elements.
z
Start engine, and raise and lower lift arm. Tilt the bucket forward and backward the bucket to the
extreme position 2~3 times to let the hydraulic oil fill the cylinders and pipes sufficiently. And
run the engine in the idle status for 5 minutes to release the air in the system.
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!
WARNING
The temperature of hydraulic oil may be high, so wear
protective clothes, and operate carefully to prevent injury.
