deck crane slew bearing rocking tests evon
Rocking Test Procedure
For the Rocking Test Procedure we provide the following services to determine "Bearing Permissible Wear " To assess the condition of the bearing ABS/API procedures recommend that you first determine the initial clearance or normal wear rate first The Bearing Wear can be measured based upon the "Tilting Clearance Method " Tilting Clearance Measurement (Initial or the []
Asset Management – DormanLong Engineering Limited
All operators perform rocking tests and grease analysis of slew rings as a matter of routine All operations involving cranes and rigging are guided in accordance to ASME B30 safety standard for cableways cranes hoists jacks and slings Scaffolding
How to conduct a rocking test of the crane
Apr 16 2018The slewing bearing rocking test should be done periodically for the bearing wear tracking and early failure detection The measurement could be done from the inside and outside of pedestal Follow the maker's recommendations and conduct the test at the same check points as during the initial test during commissioning in order all subsequent
Measuring of the slewing bearing
Mar 26 2020Not any load or cargo handling equipment (e g grab) should be on the crane hook I remember once I attended to a ship for inspections of deck cranes Among others I had measuring of the slewing bearing It was the first time when I was doing the test
March 9 2009 No 06/2009 Deck crane slew bearing rocking
Although cranes with single ball race slew bearings are considered to be most at risk rocking tests on all deck cranes where recommended by the crane manufacturer must be carried out and the results must be recorded Lloyd's Register surveyors are being instructed to review the results of rocking tests at all future Annual Thorough Surveys
Dynamic loading contributes to deck slewing crane failure
A regular five-yearly compulsory test on the ship's deck slewing crane was planned for 28 November 2017 Given that the safe working load (SWL) was 10 tons the test was planned to 'overload' the crane by 25% The test plan was the lifting of two large bags with about 10 tons of water
UWE bearing
Wire race bearing is a special structure bearing with the ring and raceway composited inlay Bearing main body material can be choosen with some special material according to the operating conditions such as special aluminum alloy material special copper and other metals or metal materials
TRAPEZITZA
1 5 1 The slewing ring bearing The slewing ring bearing is a key component on cargo deck cranes The main function of the slewing ring bearing is to provide a rotational attachment point to secure the rotating cargo deck crane to the fixed pedestal mount There are various types of slewing ring bearings designed by different manufacturers
Rocking Testing Service in Parrys Chennai
The Rocking Test need to be carried out according to manufacturer recommendation Measurements are typically taken in four positions on the slew bearing with the jib pointing Several slew bearings have failed in recent years with catastrophic results To avoid these failures it is recommended to carry out the test once in six months
Huisman Equipment
The new crane allows for the installation of the latest generation foundations and turbines for offshore wind projects The crane is built around the portside aft jack-up leg and the boom is stored around the forward leg saving valuable deck space The new crane can lift almost twice as much as the Aeolus' previous crane
Downloads
MEPC 1-Circ 736-Rev 2 Guidance ORB I Machinery Space Operations At berth Req for fuel change over FAQ Final_V2 Deck Cranes Rocking Test procedure CN0609 - Deck crane slew bearing rocking tests Latest VIQ 2014 Rev 1 2 Final Rest Hours regulations garbage regulations Garbage disch provisions ISGOTT ver5 MAN BW Pistion Overhaul extended upto 32000 Sigmacare paints for
Lifting and Hoisting Procedure Inspection Testing and
6 2 Inspection and Load Test of Cranes in Table 1 31 6 3 Inspection and Load Test of Cranes in Table 2 40 6 4 Inspection and Load Test of Cranes in Table 3 45 may be removed to allow a thorough inspection of all enclosed parts i e gearbox shafts bearings etc Slew Ring Slew ring rocking clearances shall be taken and recorded annually
Rocking Test of Deck Crane
May 07 2019Rocking test means checking the condition of the slew bearing of the deck crane It's an important items of the crane and if not grease properly the slewing bearing may become worn with bad results Before climbing on the crane first thing I do is to check the condition of the crane
Care in ship's daily operation – MarinerOnBoard
Aug 01 2015Equipment can be categorised in two first type are those operated in engine room and the other type which are operated on deck/ bridge Below are some important facts collected from the experience of several seafarers and office staff
Deck crane slew bearing rocking tests
Dec 30 2011Cranes fitted with this type of slew bearing must have rocking tests carried out in accordance with manufacturer's instructions to determine that the amount of wear in the bearing races is within permitted limits Although cranes with single ball race slew bearings are considered to be most at risk rocking tests on all deck cranes
DNVGL
1 1 3 1 This standard shall be applied for certification of offshore cranes and platform cranes for vessels with class notation Crane vessel Crane or Crane (N) This standard may also be applied as voluntary basis for verification and certification of lifting appliances that are not classed with the Society
Deck crane slew bearing tests_UWE Slewing bearing
Cranes which are particularly at risk are those with single ball race slew bearings Cranes fitted with this type of slew bearing must have rocking tests carried out in accordance with manufacturer's instructions to determine that the amount of wear in the bearing races is within permitted limits
JBT2300
Sep 13 2015JBT2300-slewing bearings 1 1 Floating crane (cargo load) Truck crane (cargo load) Marine deck crane (grab bucket) Welding equipment Working table (continuous operation) 1 1 1 30 000 Towercrane *Upperrotation Mf ≤ 0 5M 1 25 1 30 000 0 5M ≤ Mf ≤ 0 8M 1 15 45 000 Mf ≤ 0 8M 1 25 60 000 Lower rotation 1 30 000 Slewing crane (cargo load
MARINE ENGINEERING KNOWLEDGE: What is the Rocking Test?
Dec 01 2013It is a test which is carried out to find wear down of the sleeve bearing of the deck crane on ships this measures the play (or relative movement) between the inner and outer bearing race to give an indication of the wear taking place (Wear down of the sleeve bearing can be found by analysing the grease sample
Example Backup
Several slew bearings have failed in recent years with catastrophic results The failures have mainly been on cranes more than 10 years old with the single ball bearing type Slew bearing measurements (Rocking test): It is a test which is carried out to find wear down of the sleeve bearing of the deck crane This measures the play (or relative
Deck crane slew bearing tests_UWE Slewing bearing
Cranes which are particularly at risk are those with single ball race slew bearings Cranes fitted with this type of slew bearing must have rocking tests carried out in accordance with manufacturer's instructions to determine that the amount of wear in the bearing races is within permitted limits
cranes parts crane repairs
crane hydraulic pumps and hydraulic motors crane hydraulic pumps and motors are available for sale or they can be refurbished and supplied under our service exchange program that seeks to keep older style hard to find crane hydraulic units in circulation pumps and motors available include: A2F160W2Z6 A2V107HWEL A2F225W1Z6 A2V225
ABS class bureau
The slewing ring assembly where applicable is to be examined for slack bolts damaged bearings and deformation or fractured weldments Rocking Tests in accordance with the bearing manufacturer's instructions are to be taken every six months The results of these tests are to be recorded in the Register of Lifting Appliances for review by
UWE bearing
Every step of processing of slewing bearing is controlled strictly by UWE bearing staff Turning and grinding are the most used methods of processing used in the slewing ring bearing roller path processed by turning and grinding (or lathe finishing replacement) are the critical process which determines manufacturing quality of the slewing ring bearing







