8
5.4 Operating System
The main working body of a moving truck is a cargo fork, which relies on a fork
to carry the pallet or cargo for transport and short distance transportation. The
expansion of the cylinder is realized by the control of the operating handle, and
the pressure oil is provided by the pumping station.
A descending valve is installed in the circuit of the lifting cylinder to slow down
the speed at which the fork falls, and the safety drop effect is achieved
5.5 Electric System
The electrical system includes walking and operation control. The truck use DC
electric control assembly.
The meter has a battery indicator. When the battery power is too low, the
electric meter will cut off the starting control line of the oil pump motor. The
moving truck can only walk without lifting the fork, and the stacker should be
charged immediately.
The motor of oil pump is the DC motor for 5 minutes, so the pump motor is not
suitable for long running. That is, the lifting movement should have time interval,
can not continuously carry on, otherwise would make the motor heating, even
burn.
Special note: when the truck is used for a long time, the starter of the oil pump
motor may fail, and it can't be broken after being sucked or closed. The latter is
not throw control handle, the oil pump motor is kept in the rotation, should
immediately stop at this moment, to cut off the power supply (unplug battery
plug-in), make the oil pump motor stop running, and promptly replace the
starter.
5.6 Hydraulic principle
The oil pump motor drives the gear pump to provide hydraulic power, lifting oil
cylinder is responsible of fork’s lifting and
lowering, The control of the lift oil
road is controlled by the buttons on the operating handle, The lifting action is
controlled by a single action oil circuit on the valve block. This model of the
hydraulic system pressure can only be adjusted on the valve block, has been
debugging good, before they go out after they leave the our company after-sales
