LiuGong CLG835H, Service Manual

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January 24, 2017 Structure Function Principle
CLG835H Lighting system
Rear combination light
Integrate functions of steering, driving/braking
and backup light.
Shift control system
The electronic control unit EST 125 of the shift
control system receives the external signals from
gear selector, speed sensor and KD button, pro-
cess such signals and send them to CPU for
computing. Eventually, CPU drives the shift con-
trol valve combination located on the transmis-
sion by virtue of the output circuit, to get the
operator selected gear.
The 4WG-158 transmission assembled in the
machine is 4-speed transmission, with 4 gears
for forward and 3 for reverse. DW-3 gear selector
shifts reverse 4 gears, the electronic control unit
EST125 actually outputs the control signal of
reverse 3 gears.
The electronic control unit EST125 of the shift
control system receives the external signals from
gear selector, speed sensor and KD button, pro-
cess such signals and send them to CPU for
computing, where the driving state of vehicle is
determined by comparison signal between the
two speed sensors and other signals. Eventually,
CPU drives the shift control valve combination
located on the transmission by virtue of the out-
put circuit, to get the operator selected gear. Cer-
tainly, as required by driving speed, this gear is
possibly lower than that selected by the operator,
but not higher than it.
Rear left
combination light
Rear right
combination light
P18E00123
P18E00124
Reflex reflector
Reversing light (P21W)
Turn signal indicator ( 21W )
190
Stop and
position
light
(P21/5W)
P18E00125