7/31/2019 ABS Lifting Rules

1/3

ABS GUIDE FOR CERTIFICATION OF LIFTING APPLIANCES . 2007 1

GUIDE FOR CERTIFICATION OF

LIFTING APPLIANCESJULY 2007

NOTICE NO. 6 May 2011

The following Rule Changes become EFFECTIVE AS OF 1 MAY 2011.

(See http://www.eagle.org for the consolidated version of the Guide for Certification of Lifting Appliances 2007,with all Notices and Corrigenda incorporated.)

Notes - The date in the parentheses means the date that the Rule becomes effective for new construction based on the contract date for construction. (See 1-3/7.1.)

CHAPTER 2 GUIDE FOR CERTIFICATION OF CRANES

SECTION 7 SURVEYS

(Revise Subsection 2-7/5, as follows.)

5 Initial Survey (1 May 2011)

During the Initial Survey, the original proof testing and examination should be conducted in accordance with2-5/3 and the test conditions and results should be included in the Register of Lifting Appliances. See2-8/1. For cranes fitted with slewing ring bearings, the results of a Rocking Test, taken in accordancewith the bearing manufacturers instructions, are to be included in the Register of Lifting Appliances.

A load rating vs. boom angle chart with clearly legible letters and figures on durable material shall besecurely fixed to the crane in a location easily visible to the operator. Where more than one boom length issupplied, or where more than one rating is applicable to a boom (e.g., static rating and dynamic rating), achart should be supplied for each. See 2-5/3.11.

Where cranes are installed on a vessel or offshore unit during new construction and are placed in service before delivery of the vessel or offshore unit, a load test in accordance with 2-5/3 will be required to becarried out within 30 days of delivery of the vessel or offshore unit.

(Revise Subsection 2-7/7, as follows.)

7 Annual Survey (1 May 2011)

After undergoing the original test and examination required by 2-5/3, each crane is required to undergo anAnnual Survey at intervals of 12 months. The Annual Survey should include the following:

Visual inspection of the crane structure for deformation, excessive wear, corrosion, damage or fractures, as necessary. The boom is to be lowered for this examination.

Visual examination of crane hooks for deformation, excessive wear or fractures.

Nondestructive testing of crane hooks for fractures is to be carried out on all cranes used in theOffshore Drilling, Production and Construction industry.

7/31/2019 ABS Lifting Rules

2/3

Notice No. 6 May 2011

2 ABS GUIDE FOR CERTIFICATION OF LIFTING APPLIANCES . 2007

Visual external examination and operational test of crane machinery including prime mover, clutches, brakes; hoisting, slewing and luffing machinery.

Visual inspection of wire rope including end attachments.

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 manufacturersinstructions, are to be taken every six months. The results of these tests are to be recorded in theRegister of Lifting Appliances for review by the attending surveyor at each annual survey.

Functional tests including main and auxiliary load hoisting and lowering, boom raising and lowering,slewing (swinging), safety protective (fail-safe) and limiting devices and load and boom angle or radiusindicators.

(Revise Subsection 2-7/9, as follows.)

9 Retesting Survey (1 May 2011)

At intervals of five years, in addition to the requirements of the Annual Survey in 2-7/7 above, the crane isto undergo testing and examination as noted in 2-5/3. If movable weights are not available for proof tests, adynamometer or load cell may be used in lieu of weights, provided that the tests are repeated at two locations,at opposite sides of the slewing circle. Attention is called to the Owner that certain Administrations requirethe Retesting Survey at four year intervals, and ABS is prepared to do such retesting and note it in theRegister of Lifting Appliances.

Prior to proof load testing, cranes fitted with slewing ring bearings are to undergo the following tests andexaminations:

i) Cranes 1 to 5 years old Surveyor is to witness Rocking Test and a grease sample is to be analyzed.

ii) Cranes 5 to 10 years old Surveyor is to witness the requirements of i) above plus 10 percent of the slew ring bearing bolts are to be removed and nondestructively tested.

iii) Cranes 10 to 15 years old Surveyor is to witness the requirements of i) above plus 15 percent of the slew ring bearing bolts are to be removed and nondestructively tested.

iv) Cranes 15 to 20 years old Surveyor is to witness the requirements of i) above plus 20 percent of the slewing ring bearing bolts are to be removed and nondestructively tested.

v) Cranes 20 years and older Surveyor is to witness the requirements of i) above plus 25 percent of all slewing ring bearing bolts are to be removed and nondestructively tested.

Notes:1 If the results of the Rocking Test and grease samples indicate bearing wear in excess of the manufacturers

recommendation the bearing is to be opened for internal examination.

2 Bolts chosen for examination are to be taken from the most highly loaded area of the slew ring bearing. If any bolts are found with defects additional bolts are to be removed to confirm suitability for continued use.

Upon completion of proof tests, the critical welds of offshore crane pedestals are subject to the followingnondestructive testing to the satisfaction of the attending Surveyor:

Volumetric NDT of all critical butt welds in the crane pedestals, including any transition pieces betweenthe pedestal and crane slew ring.

NDT of critical fillet welds in the pedestal and transition pieces.

In addition to the items noted in 2-5/3, the slewing ring assembly including bolting arrangements andfoundation are to be examined for slack bolts, damaged bearings, and deformed or fractured weldments. Asdeemed necessary by the Surveyor, analysis of slew ring grease samples for metal particles and NDTexamination of the slew ring for fractures or damage may be required.

7/31/2019 ABS Lifting Rules

3/3

Notice No. 6 May 2011

ABS GUIDE FOR CERTIFICATION OF LIFTING APPLIANCES . 2007 3

CHAPTER 2 GUIDE FOR CERTIFICATION OF CRANES

SECTION 8 REGISTER OF LIFTING APPLIANCES

(Revise Subsection 2-8/5, as follows.)

5 Owners Overhaul and Inspection Record (1 May 2011)

A record is to be kept onboard the vessel or unit which is to show particulars of all overhauls, inspections,repairs and replacements carried out by the crane Owner or Operator between surveys. This record is toinclude a log of the Rocking Test results required by 2-7/5 and 2-7/7.