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5.4 Operating System
The main working body of a moving truck is the 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 when fork lowering , and the safety drop effect is achieved.
5.5 Electric System
The electrical system includes walking and operation control. The truck use American Curtis
1232E 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 mot
or. The truck can only walk and can’t lift
the fork,, and the prompt 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 & lowering 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 leaving our factory, If not
the our company after-sales personnel or professional maintenance personnel are strictly
forbidden to adjust themselves, so as to avoid safety accident.
Brake schematic
