Haklift Oy
Asessorinkatu 3-7
20780 Kaarina, Finland
Tel. +358 2 511 5511
www.haklift.com
Lifting Solutions Group
Axel Johnson International
2. STRUCTURAL CHARACTERISTICS AND WORKING PRINCIPLE
HAVA1000PIS manual stacker consists of a hydraulic system, mast and forks (adjustable width).
The stacker uses a manual hydraulic pump (hydraulic device) as a force to lift heavy goods, which
are pushed, pulled and handled manually. The hydraulic device is equipped with an oil return valve
and the fork decline speed is controlled via a hand lever to make the operation of the hydraulic
system correct, safe and reliable. The mast is welded with high quality profile steel with features
such as good rigidity and high strength. Universal wheels with braking device are adopted as the
back wheels, which can rotate freely, easily and flexibly. Both front and back wheels are installed
on wheel shafts with ball bearings so as to rotate flexibly. Wear-resistant and durable Nylon wheels
are adopted so that it is not easy to damage the operation ground.
When lifting goods, insert the forks under the pallet of the goods. When necessary, break the back
wheels. Set the control hand lever to the lowest position and pull the handle. The pinch roller
presses the pump core to make the oil in the pump cylinder flow into the piston cylinder, in order to
push the piston rod move upward and lift the forks upward via a chain for a two times travel. Pull
the handle back and forth so as to lift the goods and achieve the purpose of lifting. When the forks
are lifted to the maximum height, the pressurized oil flows back into the oil tank via an oil draining
hole and in that case, even the handle is pulled, the forks raise no more to avoid damaging
components by impacting the top. Stacker is also equipped with a leg operated pump. By pumping
the pedal (control hand lever in the lowest position) the forks will rise.
When handling heavy goods, the stacker is able to travel via manual pushing (pulling).
When unloading, pull the control hand lever slowly. The oil return valve opens and with the effect of
the dead weight of the heavy goods and forks, the operational oil in the piston cylinder flows back
into the oil tank through the oil return valve. When the piston rod and the forks decline to the lowest
position, the goods are unloaded and the forks can be withdrawn. For safety reasons when
lowering the goods, the control hand lever should be operated slowly and in a controlled manner.
3. OPERATION CONDITIONS
The operation of HAVA1000PIS manual stacker should meet following conditions:
1. Ambient temperature for operation: -25ºC~+40ºC.
2. The relative humidity of the environment should be less than 90%RH.
3. The stacker can only operate in an environment without rain and harmful gas erosion.
4. The stacker can only operate indoors on even and solid ground.
4. OPERATION AND MAINTENANCE
1. The oil must be filtered and clean. Sufficient oil quantity and quality must be ensured.
2. Before operation, inspection must be conducted for the stacker to ensure the stacker is in
normal condition and there are not any loose or defective components. It is forbidden to use a
defective product, it must be removed from service immediately.
