Publish Time: 2025-11-24 Origin: Site
Before installation:
· Ensure the foundation surface is level and structurally sound.
· Verify anchor bolt spacing, alignment, and verticality.
· Prepare certified lifting tools, as each QRH unit typically weighs 2–3 tons.
A solid and accurate foundation ensures long-term stability and reduces operational risks.
When lowering the equipment:
· Support the body using lifting slings through the hook base.
· Gently position the unit to align with embedded anchor bolts.
· Adjust the hook’s orientation toward the berthing direction for proper load distribution.
For electric or intelligent QRH models:
· Mount the control cabinet at a convenient and safe location.
· Connect electrical power, control cables, and field switches according to wiring diagrams.
· Test motor forward/reverse rotation, emergency stop, and indicator lights.
A complete functional test must be performed after installation to ensure the release, reset, and rope-twisting mechanisms operate correctly.
Regular equipment checks minimize downtime and prevent unexpected failures.
Operators should frequently check:
· Hook assembly for cracks, deformation, or wear.
· Pressure block and roller for smooth flipping action.
· Springs and pins for corrosion or fatigue.
· Anchor bolts for looseness or rust.
Any abnormality should be addressed immediately to maintain safe operation.
· Confirm stable power supply and functioning indicator lights.
· Test remote/local release operation.
· Inspect contactors and brake modules for overheating or improper movement.
Proper lubrication significantly extends the life of QRH components.
Recommendations:
· Apply grease to all lubrication points monthly.
· Clean old grease before reapplying new lubricant.
· Avoid mixing incompatible grease types.
· Check gearbox oil levels for models equipped with rope-twisting winches.
Possible causes: misaligned pressure block, weakened spring, or mechanical obstruction.
Solution: clean, lubricate, and replace worn components.
Possible causes: defective contactor, loose wiring, brake not released.
Solution: inspect electrical connections and control modules.
Possible causes: gearbox lubrication shortage or brake drag.
Solution: replenish lubricants and adjust the brake.
Quick Release Hooks play a crucial role in port safety and vessel-handling efficiency. A well-installed and properly maintained QRH system ensures smooth operations and minimizes safety risks.
By following standardized installation steps and adopting a structured maintenance schedule, operators can significantly enhance system reliability and extend equipment lifespan.
For customized QRH solutions—including electric release systems, intelligent tension monitoring, and remote-control functions—contact JIER MARINE for professional support.