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PK 6500 M

Deck Crane · Deck Cranes

Technical data from manufacturer or class sources · not yet verified by a person

Palfinger Marine PK 6500 M — Provision and service vessel operations, deck cargo handling.

Specifications

Technical data.reference — unverified

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Operating pressure315 bar
Reference values — not verified
Outreach3.5–9.2 m
Lifting Capacity1600–480 kg
Lifting Moment55.7–43.8 kNm
Max Moment58.7 kNm
Hook Block450 mm
Operating Pressure315 bar

Source: freecranespecs.com · not checked against a manufacturer datasheet

Manufacturer documentation

Images from manufacturer documentation.

Photos, drawings and page previews from this model’s datasheet or catalog.

“As a result of their sophisticated crane geometry work is effortless with foldable knuckle boom cranes. They make full use of their strengths and flexibility when loading and unloading equipment. Due…”

Inspection

Inspector Detail

Common issues

  • Hydraulic cylinder seal leakage causing boom drift
  • Wire rope wear, birdcaging, or broken wires from repeated cargo handling
  • Slew bearing wear leading to play or noise in the slewing motion
  • Load moment limiter sensor drift causing false overload cut-outs, or missed real overloads
  • Hydraulic hose chafing at boom articulation points
  • Corrosion of pins/bushings from inadequate greasing in exposed deck locations

Inspection checklist

  • Visual check of boom, jib, and structural welds for cracks or deformation
  • Check wire rope for broken wires, corrosion, kinking, and diameter reduction
  • Function test of the load moment/overload protection system
  • Check the hydraulic system for external leaks and correct working pressure
  • Grease all pins, bushings, and the slew bearing per the lubrication schedule
  • Check the hook and safety latch for deformation or wear
  • Test all limit switches - luffing, slewing, hoisting
  • Function test the emergency stop and manual lowering (power/hydraulic failure backup)
  • Verify the current load test/thorough examination certificate is valid and on board

Service intervals

Wire rope inspectionbefore each use, with a documented detailed inspection at least every 3 months
Full lubrication of pins/bearingsper the manufacturer's schedule, typically monthly or per running-hour interval
Hydraulic oil/filter changeper the manufacturer's interval, typically annually or per running-hour schedule
Load test / thorough examinationannually, or per flag/class requirement, by a competent person
Load moment limiter calibration checkannually or after any repair affecting the sensing system

Typical wear limits

Wire rope diameter reductioncommonly discarded once diameter loss or broken-wire count exceeds the applicable wire rope standard's limit - confirm the exact criteria against the standard currently in use, not a fixed number here
Hook wear/deformationreject on any crack, significant throat opening increase, or visible twist - confirm exact criteria against the applicable lifting equipment standard

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Hydraulic cylinder seal kits
  • Wire rope of correct diameter/construction for this model
  • Hook block with safety latch
  • Hydraulic hoses matched to working pressure
  • Slew bearing bolts/seals
  • Limit switches

Safety

  • Never bypass or disable the load moment limiter/overload protection
  • Stay clear of the load path and slewing radius during operation
  • High-pressure hydraulic fluid injection risk from pinhole leaks - never check hoses by hand
  • Confirm the SWL/outreach chart at the operator's station is current and matches the certified load test
  • Do not operate with an expired thorough examination or load test certificate

Class survey

Lifting appliance, subject to periodic thorough examination and load testing per flag/class rules (commonly annual, with a more extensive test at longer intervals). The surveyor checks the crane's certificate register, wire rope renewal history, and load moment limiter test records; this crane sits under the ship's lifting appliances/cargo gear register, not Continuous Survey Machinery.

Estimated lifetime: Hydraulic knuckle-boom cranes of this class are generally assessed by structural condition, cycle count, and periodic load testing rather than a fixed running-hour lifetime; with proper maintenance, service life is commonly measured in decades of vessel service, subject to survey.

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