Hydraulic Couplers
Hydraulic couplers use a hydraulic cylinder to engage and disengage locking pins. The primary lock is the hydraulic wedge or pin; the secondary lock is typically a spring-loaded mechanical latch that engages automatically. Loss of hydraulic pressure must not release the secondary lock.
Mechanical Couplers
Mechanical couplers use manual pin insertion with a secondary retention pin or safety clip. While slower, mechanical systems eliminate hydraulic failure modes and are preferred in demolition applications with overhead hazards.
Inspection
Visual and tactile verification indicators confirm full engagement. Daily pre-operation inspection includes checking wedge position, latch engagement, and hydraulic fittings for leakage.
Equipment
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