Operation & Maintenance Manual──LG958L/LG959 Wheel Loader
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brake magnetic valve to aerospace. Then the brake is pulled up under the spring to arrive to brake.
The parking brake indicator lamp controlled by output air pressure is lightened at the same time and
cut off the power of transmission box.
When the system air pressure is lower than 0.4Mpa, the brake magnetic valve will cut off
automatically to control the compress air in the parking brake air chamber 8 to drain into the
aerospace by hand, so that the emergency brake is utilized to protect the safety of vehicle and people.
4 ELECTRIC SYSTEM
The electric system is composed of a storage battery, starting motor, charge generator, appliance,
switch, lamps, air conditioning circuit and other electric instruments.
The system of this machine employs D.C. 24V voltage, negative electrode and single wire lines. The
relation of each electric instrument and their working theories refer to the diagram sketch of the
electric system as is shown in figures 5-5, 5-6, 5-7 and 5-8.
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