Self-Retracting Lip
A self-retracting lip is an important safety and performance feature. The Pentalogic Hydraulic manifold facilitates the self-retracting lip on Pentalift “HD” Series dock levelers.
Conventional hydraulic dock levelers, yieldable lip circuits utilize an “in line” pressure relief valve, maintaining the lip in the extended position. Once a vehicle departs, the deck lowers with the lip remaining in the extended position. The next incoming vehicle will impact the extended lip and any excessive force will push the lip assembly back into the pendant position. In addition, a conventional hydraulic circuit can cause the lip to get “caught on” a portion of the incoming truck, resulting in extensive damage to the vehicle, dock leveler and cargo.
On truck departure, the Pentalogic hydraulic manifold allows the lip assembly to gently retract into the pendant position prior to the arrival of the next incoming vehicle. The Pentalogic hydraulic manifold assures that the lip is always pendant behind the protective bumpers. Units equipped with automatic return-to-stored-position, work in conjunction with the self-retracting lip (eliminating false signals common with other makes), to return the deck to the safe, stored position.