Quick-Change Couplers

Manhole cutter, manholes, paving, utilities, rotomilling, water valves, asphalt, trimming, manhole adjustments, adjusting water valves, water valve adjustments, manhole covers, manhole rings, concrete manholes, utility adjusters, utility adjustments, trimming around manholes, asphalt grinding, asphalt cutting, manhole restoration, collar adjustments, riser adjustments, manhole risers, sewer lines, sewer services, sewer chimneys, storm sewer, sanitary sewer, paving adjustments, grade adjustments, pavement cutters, pavement cutting, macadam cutters, carbide asphalt cutter, hole cutter, asphalt hole cutter, pavement hole cutter, utility risers, quik cut, quick cut, kwik cut, lid adjustment

Some hydraulic hose couplings consist of two halves, which enable connection and disconnection of lines without liquid escaping. However, this coupling process can be difficult because of pressure in the lines. It takes approximately 10 minutes to achieve a coupling process with pieces that screw together in this manner. Hydraulic power units always have at least two lines; therefore there are two couplings and double the amount of time is required.

To that end, one half of the coupling is affixed to a component such as an excavator arm. The second half of the coupling, the hose half, is aligned and firmly fixed half flush over a guide shaft. It is placed in a guiding cradle to assure that it can be pulled in a completely straight line. An eccentric pulley is attached to one of the coupling halves, centered evenly between them. By turning this unit 180 degrees clockwise, the two halves of the coupling are pushed straight into each other. They are then locked in this position and the coupling process is complete.

Both halves of the coupling are positively interlocked. The advantage here rules out the otherwise familiar wear suffered by the closing mechanism, especially where traditional couplings are subjected to pulsating pressure. The coupling is released in reverse order, by turning the eccentric pulley counter-clockwise.

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