Code of Practice for Safe Use and Operation of Suspended Working ...

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8.1.5 During the inspection, functional test of the following items should alsobe carried out by the competent person in accordance with themanufacturer’s instructions:(a)(b)(c)(d)(e)(f)(g)all operational control including emergency stop;communication system;manual descend facility;all limit switches;all electrical wiring and earthing component;automatic safety devices; andbraking systems.8.1.6 Any defect and abnormal function noted during the inspection should berecorded in the maintenance log book. Minor repairs such as tightening ofbolts and nuts should be immediately carried out. If repairs involve the strengthand stability of the suspended working platform, the effectiveness andefficiency of the driving mechanism, function of electrical equipment or properfunction of the various safety devices, the suspended working platform shouldbe removed immediately from service. The suspended working platformshould be returned to maintenance contractor for repair and thereafter testedand thoroughly examined before put into service again.8.2 Thorough Examination by Competent Examiner8.2.1 Every suspended working platform should be thoroughly examined by acompetent examiner in the immediately preceding 6 months before it isput into use. A certificate in the approved form (Form 2) should be obtainedfrom the competent examiner to certify that the suspended workingplatform is in safe working order (regulation 20(1) of the SWPR).8.2.2 Every thorough examination of a suspended working platform should beto detect significant defects of critical parts before they result in the failureof the working platform structure, anchorage system, suspension gear ora safety device.8.2.3 All critical parts of the working platform structure, anchorage system,suspension gear and safety devices should, where accessible, beexamined for failures, cracks, broken members, deformation, corrosionor excessive wear.49
8.2.4 The frame, decking, weld and other joints of the working platform structureshould be closely examined for corrosion, cracks, and generaldeterioration.8.2.5 The whole length of every wire ropes including safety ropes should bethoroughly examined for wear, damage and corrosion in order to ensurethe safety of the rope system. Particular attention should be paid to tuckedsplices and those sections of rope lying close to terminal fittings.8.2.6 When examining a winch operated suspended working platform, theworking platform should be lowered to the lowest level and all parts ofthe rope, including those that remained spooled on the drum, should becarefully examined.8.2.7 The anchorage system, including the outriggers, tie-back ropes, turnbuckles,imbedded eye-bolts, anchor bolts or other roof fixing or structureshould be carefully examined for corrosion and defects.8.2.8 Rollers and guide pulley should be checked to see that they are free torotate.8.2.9 All lock nuts, cotter pins and other retaining devices should be replaced ifthey are found to be defective or missing. All load bearing bolts should bere-tightening.8.2.10 All critical parts of every winch, climber and drive mechanism should bethoroughly examined, including the adjustment of all brakes if necessary.8.2.11 All electrical components and earthing capacity should be checked andtested in accordance with the manufacturer’s specification by a qualifiedelectrician.8.2.12 Non-destructive test should be carried out if necessary to determine orconfirm whether the load bearing capacity of the suspended workingplatform system is adversely affected to the extent that a repair must beimmediately carried out, and that the safe working load may have to bereduced.50
Page 1 and 2: Code of Practice forSafe Use and Op
Page 3: This Code of Practice is prepared b
Page 9 and 10: Competent personA competent person,
Page 11 and 12: Registered professional engineerA r
Page 13 and 14: 3. DESCRIPTION3.1 This Code specifi
Page 15 and 16: 4. MANAGEMENT OF SAFE OPERATION OFT
Page 17 and 18: (e)(f)(g)(h)(i)(j)(k)the suspended
Page 19 and 20: 4.2.3 Responsibility of working per
Page 22 and 23: 5.2.2 Working platforms should be c
Page 24 and 25: 5.3.7.3 In the case of davit arm co
Page 26 and 27: 5.3.7.5 Where parapet wall clamps a
Page 29 and 30: 5.4 Stability Against Overturning5.
Page 31 and 32: 5.5 Counterweight5.5.1 Where counte
Page 33 and 34: 5.6.8 Adequate arrangements (e.g. t
Page 35 and 36: 5.8.3 If the rope is to be wound on
Page 37 and 38: 5.10.4 The secondary brake should b
Page 39 and 40: 5.13.5 The place where persons acce
Page 41 and 42: 6. SAFE AND PROPER USE6.1 Erection,
Page 43: 6.3 Safety Belt and Lifeline6.3.1 E
Page 46 and 47: 6.5 Marking of Safe Working Load an
Page 48 and 49: 6.7.1.3 The working platforms shoul
Page 50 and 51: 7.2 Wire Ropes7.2.1 All ropes shoul
Page 54 and 55: 8.2.13 Functional tests of the foll
Page 56 and 57: 8.4 Display and Keeping of Certific
Page 58 and 59: (c)(d)(e)(f)(g)in case of a tempora
Page 60 and 61: 14. Guidance note on classification
Page 62: Occupational Safety and Health Bran

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