Operation & Maintenance Manual
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LG958L/LG959 Wheel Loader
109
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Check the oil level in the oil tank and the water level in the water tank.
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Add grease to the fan shaft, jointed point between front and rear frames, driving axles, jointed
points of oscillating frame and joint points of work equipment.
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Check if there are other abnormalities.
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Refer to
Operation and Maintenance Manual
of diesel engine for maintenance.
3.2 Every 50 Hours (Week) Service
Carry out the periodic maintenance of every 10 hours with this maintenance operation at the same
time.
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Check oil level of the gearbox, hydraulic oil tank and brake booster pump.
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Tighten all connection bolts of transmission axles.
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Check whether all connection bolts of hubs and the brake caliper are loose.
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Check all connection bolts of teeth for tightening.
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Check and lubricate the accelerator control, parking brake and gearshift control system.
In addition, do the extra maintenance in the first 50 hours as follows:
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Check and clean the air vent of the gearbox. Check and clean the filter cartridge of the oil line
system of the torque converter-gearbox.
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Check if there is leakage in the hydraulic system. Check and clean the air vent of the hydraulic
reservoir. Check and clean the oil-return filter cartridge of the hydraulic reservoir.
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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 check the brake fluid. Add them if deficient.
3.3 Every 250 Hours (Month) Service
Carry out the periodic maintenance of every 10 and 50 hours with this maintenance operation at the
same time.
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Check the storage battery. Clean surface and terminals of the battery then coat Vaseline lamina.
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Check whether assembling bolts of frames are loose and welding seams are cracked.
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Check whether the front and rear axles, engine and gearbox and frame are loose.
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Check the tire pressure. Inflation pressure of front tires should be 0.39±0.01MPa while that of
rear tires should be 0.33±0.01MPa.
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Open the water draining valve in the air tank to drain the water out.
In addition, do the extra maintenance in the first 250 hours as follows:
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Check and clean the air vent of gearbox. Clean the oil pan of gearbox. Replace the suction filter
cartridge in the oil pan of gearbox. Replace the filter cartridge in the oil lines of torque
