Upper receiver for 4 t dump · upper shaft, tailgate hinge

The tailgate hinge, upper support, and upper shaft of the dump truck are fall prevention devices that prevent the tailgate from opening by itself and cargo from falling out. If you leave it in a deteriorated state, it may cause an accident such as opening the tailgate while driving.

The difference between the tailgate hinge and the upper catch of the dumper

The tailgate fixing device used for dumping is

  • tailgate hinge
  • Upper receiver/shaft

There are two types. The difference between the two is the presence or absence of unlocking.

Since the tailgate hinge is fixed to the tailgate, it acts as an axis when opening and closing the tailgate. In other words, it is the role of a hinge in architecture.

On the other hand, in the case of the upper support, the shaft serves as the axis of the tailgate hinge and can be unlocked to open the door. In other words, if the upper support and shaft are attached, the door can be opened either upwards or downwards. *When using the bottom opening, it is necessary to install a part called dump middle bracket that prevents the door from falling down.

Handling the upper support and tailgate hinge (upper shaft)

There are multiple heights for tailgate hinges, upper receivers and shafts for 4t dump trucks handled by Yamada Body Works. We have a wide range of heights from 7.5 cm to 30 cm.

The taller the tailgate hinge or upper bracket, the wider the door will open, and the lower it will open, the smaller it will open. At 130mm high, the new hinge is the lowest of its type. This product is used in deep dump trucks, etc., where the door itself is large even if the door does not open wide. The highest top support is 230mm, and in recent years it has been widely used in rental car dump trucks.

The sales page shows R (right) and L (left) separately, so if you want to use them as a set, please purchase both.

Also, if you purchase an upper receiver, purchase the corresponding upper shaft as a set. Using the wrong size upper bracket may result in inconsistent heights and retainers.

For the new hinges handled by Yamada Body Works, we also sell kingpins (roll pins) for repair. If there is a problem with opening and closing due to rust, it is possible to replace the kingpin and repair it.

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