Hydraulic Sy Hydraulic System Wor Stem Working Princ King Principle Iple - HANGCHA CBD20-AEC1 Operation And Maintenance Manual

2.1 2.1 Hydraulic system Hydraulic
Lifting the Loading Lifting the Loading
Press the lifting button of the control lever and the oil pump motor starts. It passed the torque Press the lifting button of the control lever and the oil pump motor starts. It passed the torque
from motor to gear pump through the transmission shaft. The gear pump absorbs the hydraulic from motor to gear pump through the transmission shaft. The gear pump absorbs the hydraulic
oil from the fuel tank and passes the oil to the lifting cylinder through non-return valve. High oil from the fuel tank and passes the oil to the lifting cylinder through non-return valve. High
pressure oil push the piston rod forward which give rise to the lifting of pressure oil push the piston rod forward which give rise
Release the lifting button and the oil pump motor stops. The gear pump stops absorbing the oil. Release the lifting button and the oil pump motor stops. The gear pump stops absorbing the oil.
And the And the non-return
original lifting position. When the lifting cylinder reaches the end or the truck is over loaded, the original lifting position. When the lifting cylinder reaches the end or the truck is over loaded, the
working pressure is exceeding the safety pressure defaulted in the system, the overflow valve working pressure is exceeding the safety pressure defaulted in the system, the overflow valve
will be open and the will be open and the hydraulic oil returns back to the fuel
Lowering the Loading Lowering the Loading
Press the lowering button of Press the
electromagnetic valve is applied with electricity, the hydraulic oil in the lifting cylinder will flow electromagnetic valve is applied with electricity, the hydraulic oil in the lifting cylinder will flow
back to the fuel tank due to gravity. Both the cylinder and the loading start to lower. Governor back to the fuel tank due to gravity. Both the cylinder and the loading start to lower. Governor
valve is used to prevent the trucks and loadings from being damaged due to the rapid lowering valve is used to prevent the trucks and loadings from being damaged due to the rapid lowering
speed. speed.
system working working principle
non-return valve valve is is closed closed which
hydraulic oil returns back to the fuel tank.
lowering button of the control the control lever and
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principle
to the lifting of forks and the loading.
which can can keep keep the the lifting lifting cylinder
tank.
lever and the oil the oil pump motor pump motor starts.
64 64
forks and the loading.
cylinder and and the the loading loading in in its
starts. When the When the closed
its
closed