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Pentalift Blog - October 2018

Can lift trucks be used on dock lifts?

Although manual pallet trucks or power driven pallet trucks are the most common pieces of material handling equipment used on a dock lift some applications call for the use of a lift truck. If using a lift truck on a dock lift there is one very important option to consider. With the dock lift in the lowered closed position the operator drives the lift truck onto the dock lift platform. As soon as the up button is operated an optional automatic hinged hydraulic roll off stop on the dock lift is activated, basically a hinged barrier rises behind the lift truck. When the dock lift is in the raised position the vertical hinged barrier prevents the lift truck from accidentally driving off the back of the dock lift. When the dock lift is lowered to the closed position the hinged barrier automatically lowers, the lift truck then drives off.

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What is dock leveler lip crown?

The majority of all loading dock positions service varying heights of incoming trucks, it is important to have a dock leveler service trucks higher than finished floor level. The hinged lip assembly when fully extended is not level (not the same trajectory) with the dock leveler deck assembly, by design it is slightly tapered downward. If the lip did not have this tapered downward (crown) feature when a truck is in position that is higher than the floor level the tip of the lip would project upwards creating a barrier. Dock levelers can be ordered with reduced lip crown, this would be appropriate when the finished floor height and the truck bed height are consistently the same.

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What is the point of a guarded foot pedal control?

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What are the most common loading dock product electrical interlocks?

Although there are many combinations available there are 2 very common interlocks specified. 1. Interlocking a vehicle restraint to a hydraulic or air powered dock leveler. This interlock is safety related, the dock leveler will not operate until the truck in position has been secured by the vehicle restraint. The truck secured signal from the vehicle restraint now renders the dock leveler controls operational. 2. Interlocking the overhead door to a hydraulic or air powered dock leveler. This interlock is used to reduce potential damage to the overhead door and improve building security. Before the dock leveler will operate the overhead door must be raised which activates a wall installed limit switch. The activated limit switch now renders the dock leveler controls operational. When the dock leveler is cycled it will not contact the overhead door causing damage to the door and the locking mechanism.

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Why are there more and more steel face loading dock bumper in use?

Loading dock bumpers are designed to stop an incoming truck and prevent damage to the building. When the truck is in position and the loading begins it is common for the truck bed to raise and lower due to the weight change. The back of the truck is tight to the face of the dock bumper; this up and down movement causes abrasion to the face of the dock bumper and puts stress on the dock bumper anchor bolts. A laminated dock bumper with a steel face absorbs the energy from the truck as it is backed into position. During the loading process the truck bed up and down movement now slides on the steel face of the bumper significantly removing the abrasion factor and also lowers the stress on the anchor bolts.

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