Manufacturer's detailed explanation: The working principle of the hand-cranked stacker is the manual hydraulic stacker

1. Structural features and working principle 　　The hand-operated stacker is called a manual hydraulic stacker, which is composed of three parts: hydraulic system, mast and fork.　　 The vehicle uses manual hydraulic jacks (ie hydraulic devices) as power to electric pallet lift truck heavy objects, and push and pull heavy objects manually. The hydraulic device is equipped with an oil return valve, which controls the lowering speed of the fork through the handle, and makes the hydraulic system operate correctly, safe and reliable. The door frame is welded with high-quality steel, with good rigidity and high strength. The rear wheel uses a universal wheel with a brake device, which can rotate freely and is light and flexible. The front and rear wheels are mounted on the axle with ball bearings for flexible rotation. The wheels are nylon wheels, wear-resistant, durable, and not easy to damage the working ground.　　 When lifting the cargo, insert the fork under the cargo pallet. If necessary, brake the rear wheel and turn the handle. The pressure roller presses the pump core, so that the oil in the pump cylinder enters the piston cylinder, pushes the piston rod upwards, and lifts the fork upward by two times through the chain. The goods can be lifted by reciprocating the handle to achieve the lifting purpose. When the fork rises to the highest position, the pressure oil flows back to the fuel tank through the drain hole. Even if the handle is pulled, the fork does not rise anymore, so as to avoid damage to the parts due to overshooting.　　 When carrying heavy objects, the stacker can be pushed (pulled) manually. When unloading, pull the unloading handle to open the oil return valve. Under the action of the weight and the fork's own weight, the working oil in the piston cylinder returns to the oil tank through the oil return valve. When the piston rod and fork drop to the lowest position, remove it. For heavy objects, pull out the fork.　　2. Conditions of use 　　The use of the hand-cranked stacker should meet the following conditions: 　　1. Ambient temperature for use: -25℃～+40℃.　　2. The relative humidity of the environment is less than 90%RH.　　 3. In an environment free from rain and harmful gas erosion.　　4. Use it indoors with a flat and hard floor.　　3. Use and maintenance　　 1. The oil must be filtered clean and maintain sufficient oil volume.　　 2. Before use, check whether the car is in normal condition and whether it is loose.　　3. The goods should be evenly distributed on the forks and should not be overloaded.　　 4. After the operation is over, the heavy objects should be unloaded, and the heavy objects are not allowed to be pressed on the fork plate for a long time.　　5. When the cargo is lowered, the handle of the oil return valve should be slow and light to prevent a sudden drop when it descends too fast, which may cause unsafe phenomena. When the cargo is falling rapidly, the oil valve cannot be closed suddenly, because inertial acceleration is generated during the fast falling, if the oil return valve is suddenly closed, a strong force will be generated, which will damage the parts and cargo.　　6. u200bu200bUse both hands to electric pallet lift truck the front of the table top, pull it out, and remove the table top, which can be used as a pallet truck or a pallet stacker.　　7. The brakes on the rear wheels are set for safety during the operation. When the fork is lifted or used as a working platform, the brakes should be depressed with your foot to prevent the car from rolling.
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