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PT.

DWIKAPPA ASRI UTAMA


Standard Procedure Responsible Department Procedure No. Revision No.
Weld Repair Method Engineering 001-DAU-01-PRO-MECH-0008 1

WELD REPAIR METHOD


OF
RTO KO DRUM

Client : PT. Synthetic Rubber Indonesia


Project Name : RTO KO Drum Fabrication and Installation
Project No. : DAU-001-2019

1 28 Apr19 For Approval AP VK JZ


0 24 Apr 19 For Approval AP VK JZ
Rev Date of Status Prepared Checked Approved
Issue

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PT. DWIKAPPA ASRI UTAMA
Standard Procedure Responsible Department Procedure No. Revision No.
Weld Repair Method Engineering 001-DAU-01-PRO-MECH-0008 1

1. GENERAL

This Specification covers the repair of welding defects

2. REFERENCE
The repair activity shall comply with the requirements of the following codes and
standards and Purchaser requirements.

AWS D1.1Latest Edition : Structural Welding Code – steel


1

3. PURPOSE
The Purpose of this “Weld Fabrication Repair” is to specify the step by step method
on how to repair the welding defect

4. SCOPE OF WORK

No. Description Correction


1 Cracks in weld or base metal The crack shall be removed and re welded.
2 Porosity Unacceptable portion shall be removed and re
welded.

5. EXECUTION
5.1 Quality Control together with Company to identify the defect location..
5.2 In order to perform Penetrant Test, the surface preparation to be done by brushing,
chipping and grinding.
5.3 Each weld repair area shall be 100% re-inspected by visual examination and
Penetrant Test.
5.4 The welding repair activity shall be performed in accordance with the approved
WPS.
5.5 Each critical step in this activity shall be done only after advanced notification and
agreed by SRI.
5.6 Repair report shall be issued and signed not later than 1 day after the activity.
5.7 Contractor is allowed to proceed after get the NDE Clearance from SRI

6. LIMITATION OF REPAIR
6.1 The repair at the same location shall not be more than 3 (three) times.
6.2 In the event the welding defect still exists after 3 (three) times of repair, the joints
or parts shall be removed and replaced with the new ones.

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PT. DWIKAPPA ASRI UTAMA
Standard Procedure Responsible Department Procedure No. Revision No.
Weld Repair Method Engineering 001-DAU-01-PRO-MECH-0008 1

7. FLOW CHART

STRUCTURE REPAIR FLOW CHART

QC and Company identify


the defect location

Perform NDE Examination


(Surface Preparation to be
done by chipping or
grinding)

If success , the
report shall be
endorse by QC
and reviewed by
Company Welder will carry out the
repair data and welding in
accordance with the approved
WPS and requirement

On completion of the repair


QC will carry out a visual
inspection and inform the
company to witness the
Result

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