Operation & Maintenance Manual──LG918 Wheel Loader
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2 RUN-IN PERIOD OF NEW MACHINE
A new machine must have a run-in period first to increase the load step by step from free rotating; so
that each part of the machine can be have full run-in period for increasing the life of the machine. It
needs 60 hours to train the new machine, and operate follows:
z Run the machine in neutral at low-speed to preheat the engine.
z Never accelerate the engine suddenly in the preheating period.
z Never start, accelerate, turn or brake suddenly except in an emergency.
z When the loader is working without a load, the gearshift should be used from low speed to high
speed at each level accordingly. Turn left, right or brake steadily in the process of driving.
z In the period of run-in, all speeds including forward and reverse should be adjusted.
z It is better to load bulk materials in the period of run-in. Do not operate the loader too hard or too
rudely. The load should be less than 70% of the standard load, and the speed should be better less
than 70% of the maximum speed limit.
z Pay attention to the lubricating condition; routinely add and change the lubricant according to
rules.
z Pay attention to the temperatures of the gearbox, torque converter, front and rear frame, rim and
brake drum. Once they are overheating, find the reason and repair it.
z Check the fastening conditions of the bolts and nuts.
Do the following maintenance after 10 hours of run-in time on the new loader:
z Check the fastening status of bolts and nuts of all parts, but especially the bolts of diesel engine
cylinder cover, vent-pipe bolts, front and rear frame bolts, rim bolts, transmission axle bolts and
connection bolts.
z Clean the raw and essential engine oil filter and fuel filter.
z Check the tension status of the belts of fan, electrical machine and air condition compressor
z Check the capacity of the storage battery electrolyte and its reserves, and fasten the connect
poles.
z Check the oil level of the gearbox. Please refer to 3.6.3 Adding Oil to Gearbox, in this
chapter.
z Check the seal of the hydraulic system and braking system.
z Check the connection and sensitivity of all control levers.
z Check the temperature and the connections of the circuit system, the power supply of electrical
machine, gauge, light and lamps and turning signals.
z Open the air storage tank to drain water.
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