Deck Crane · Deck Cranes
Maintaining robust performance and reliability in various industrial environments is crucial, especially when handling heavy loads. The Heila HLM20-3S Foldable Knuckle Boom Crane, manufactured by Brimmond, offers a compact yet durable solution for diverse applications such as ROV launch and recovery, general cargo handling, and material transport with a clamshell bucket. With a lifting capacity of up to 1700kg at a 10.56m radius, this crane can be extended using three hydraulic sections, making it versatile enough to meet the demands of multiple industries. The rack & pinion slewing mechanism allows for limited rotation of 400°, ensuring precise positioning. For additional support and specialized projects, Brimmond offers a range of complementary equipment and bespoke design solutions.
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Source: brimmond.com · not checked against a manufacturer datasheet
| Function and visual inspection by a competent person | every 12 months, per class/flag lifting appliance requirement |
|---|---|
| Wire rope inspection | every 3-6 months, plus before use if the crane is used infrequently |
| Proof/load test | typically every 4-5 years, or per class requirement, and after any major repair |
| Hydraulic oil analysis/change | per the maker's schedule, typically every 12 months or condition-based |
| Slew bearing bolt torque check | every 12 months |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Wire rope discard criteria | generally per ISO 4309 broken-wire and diameter-reduction criteria for the specific rope construction fitted - confirm against the maker's and class's guidance rather than a single number |
|---|---|
| Hook wear/deformation | commonly discarded when throat opening or section wear exceeds the maker's and class's specific limit for the hook size - do not rely on a generic percentage |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Cargo/deck cranes are lifting appliances under class rules and typically require an annual thorough examination by a competent person, a periodic proof/load test (commonly every 4-5 years), and a valid load test certificate displayed with the crane; documented wire rope inspection history is a common survey focus.
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