Zepro Z 15, User Manual

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Description function
The hydraulic system is protected with a
pressure regulator when lifting or tilting
up. Note! This regulator does not prevent
overload at rest position or lowering.
The electric power is taken from the trucks
ordinary battery. Current to the tail lifts
electrical motor is lead by a fuse which also
has a function as main switch to the tail lift.
The fuse is located in a plastic box near the
trucks battery.
Control current is taken from the dash
board. When the control currents isolator
switch is switched off, the lift is ”locked”.
At all transport situations must the control
current be broken.
To save current the control ought to be
switched off when the lift not is in use.
The lift can be operated from optional
units connected in parallel. It can also be
operated by remote control.
The electric motor is equipped with a
so-called ”thermo guard”, a thermostatic
steered switch as break the solenoids
manoeuvre circuit if the motor is
overheated. When the motor has to cool
down the solenoid will work again.
The ZEPRO-lift is electro hydraulically
driven. An electric motor which gets its
power from the truck’s ordinary battery
drives a hydraulic pump which supplies oil
to the working hydraulic cylinders.
The system is steered by electrical valves.
The hydraulic unit with all details is either
built into the lifts support frame or contained
in a separate box. Both systems are easy
to reach for service and maintenance. The
”power pack” is easy to replace.
The platform is supported by the lift arm
which is very strong and rigid. The under
run bar is bolted to the lift arms or is directly
attached to the support frame. The platform
has a nonslip surface.
The lift arm lifting work is done by lift
cylinders which have built in safety valves
for protection against hose breakage. The
cylinders are equipped with electric safety
valves, which are leak proof. These safety
valves also act as a transport lock for the
platform.
The platform’s tilt function is also provided
by cylinders with the same construction as
the lift cylinders. Lifting and tilting up speed
are fixed by the pump capacity, and it’s
naturally conformed to statutory velocity.
Lowering and tilting speeds can be
adjusted with special constant flow valves
that are accessible to service personnel.
These valves give the same speed
independent of the load.
The cylinder piston rods are treated with
methods which gives them very long life.
Function, operation