LGMG MT86H, Руководство по эксплуатации и обслуживанию

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MT86H Operation and Maintenance Manual
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Fig 4 ‐ 38
1. Brake pedal
Fig 4 ‐ 39
Brake pressure gauge
Fig 4 ‐ 40
Exhaust brake rocker handle
4.8 Operation and maintenance of brake
system
4.8.1 Composition of brake system
The brake system of MT86 mining dump truck
mainly consists of two-circuit service brake
(foot brake), auxiliary brake (engine exhaust
brake) and emergency/parking brake (hand
brake).
The two-circuit pressure brake is operated
through the pedal. Its working pressure is 0.8
Mpa, and the disconnection pressure of
pressure regulating valve is 0.85 Mpa. The
first circuit acts on wheels of middle and rear
axles, and the second circuit acts on the
wheels of front axle. Once the pressure in one
of air reservoirs of the two circuits is below
0.55 Mpa, the low brake pressure warning
indicator on instrument panel will light up,
and at this moment, it is required to stop the
vehicle immediately and find out the causes of
pressure falling.
Continuously and repeatedly applying full
brake in a short time may also lead to pressure
falling below 0.55 Mpa.
Criteria for pressure inspection: Shut off
engine and apply hand brake. In 2h, the
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