Operation & Maintenance Manual
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LG918 Wheel Loader
99
the same time.
z
Check and adjust the clearance of hand brake system.
z
Check the wear condition of brake discs and friction discs. Replace them if necessary.
z
Clean the silencer of the braking electromagnetic valve.
In addition, do the extra maintenance in the first 500 hours as follows:
z
Check if there is leakage in the hydraulic system. Check and clean the air vent of hydraulic
reservoir. Replace the filter cartridge of oil-return filter and pilot filter
（
if assembled
）
. Check the
quantity and cleanness of hydraulic oil. Filter the oil if possible. Add them if deficient and replace
them if necessary.
z
Check if there is leakage in the brake system. Clean the filter mesh of the oil bowl in the booster
pump. Clean the air vent and replace the brake fluid.
3.5 Every 1000 Hours (Half a Year) Service
Carry out the periodic maintenance of every 10, 50, 250 and 500 hours with this maintenance
operation at the same time.
z
Clean the oil pan of gearbox. Clean the air vent of gearbox. Replace the suction filter cartridge in
the oil pan of gearbox. Replace the filter cartridge in the oil lines of torque converter-gearbox.
Replace the gearbox oil.
z
Change the gear oil in the front and rear axles.
z
Check and clean the filter mesh of the oil bowl in the booster pump. Clean the air vent and
replace the brake fluid.
z
Check if there is leakage in the hydraulic system. Check and clean the air vent of hydraulic
reservoir. Clean the hydraulic reservoir. Replace the filter cartridge of return filter and pilot filter
（
if assembled
）
.
z
Check the clearance and wear condition of the pins and the bushes in every articulated point.
In addition, do the extra maintenance in the first 1000 hours as follows:
z
Replace the hydraulic oil. And then replace once every 2000 hours.
3.6 Every 2000 Hours (Year) Service
Carry out the periodic maintenance of every 10, 50, 250, 500 and 1000 hours with this maintenance
operation at the same time.
z
Check performance of the torque converter and gearbox, differentials of front and rear axles and
the wheel side reducers. Disassemble them for checking if necessary.
z
Check the sealing performance of multi passage valve and hydraulic tank by measuring the
natural sedimentation volume of the cylinders fuel oil, and then check the system pressure.
z
Check the welded seams of rim and other stress parts and adjust the deformation.
