Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Safe Practices in Lifting Operation

Lift and hoists

Lifting gear

Wire Rope safety

Overview

Introduction

Legal Requirements

Lifting of persons in work platform

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Safe Practices in Lifting Operation

Safe use of cranes

Ensuring safe slinging

Overview

Roles and responsibilities of signalman, rigger and lifting supervisor

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Hoists and Lifts

Good construction, sound material and adequate strength free from patent defect and properly maintainedClassified under lift & hoist and together with Lifting platform and required check by Authorised Examiner once every six months

Hoist way of lift way shall be efficiently protected

SWL signage

Overhoist limit switch

Operated by designated person who is above 18 yrs

WSH (Construction) Regulation 2007

Safe Practices in Lifting Operation

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Lifting Gear

Good construction, sound material and adequate strength

Classified under LG and required check by AE once a year

SWL tag or embossed

Periodic check by designated person

Wire RopeWebbing

Safe Practices in Lifting Operation

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Shackle Special hook

Steel plate grip

Steel chain

Shackle and eye bolt

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Two legged sling Three legged sling Four legged sling

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Chain Slings

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Inspection & Discard Criteria

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Inspection of Shackle

Lifting hook

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Shackles

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Synthetic webbing

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Safe Use of Wire Rope

Wire rope ( BOWEC 230)

Good construction, sound material

and adequate strength

Checking of wire rope

Wire rope construction

Wire Rope Kink

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Inspection & Discard Criteria

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Clips for rope fastening

Rope fastening

Safe Use of Wire Rope

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Lifting of person in a platform

Identification and marking

Design of platform

Safe working load

Handrails and Overhead Protection

Suspension system

cranes

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Lifting Machines and Lifting Appliances

Lifting Machines ( Operation of Crane 1999)

Good construction, sound material and adequate strength

Classified under LM and required check by AE once a year

Load test every 4 yearsSWL tag on the crane and load chart in the cabin

Erect or install by approved crane contractor and tested by Authorised Examiner

Licensed operator, trained signalmen, rigger and lifting supervisor

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Lifting Machines and Lifting Appliances

Classification of Cranes

Truck mounted Hydraulic Cranes

Crawler Cranes

Tower Cranes

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Lifting Machines and Lifting Appliances

Safe use of cranes and lifting equipment

Crane accident

Overloading Soil condition Misuse

Damaged crane Rigging of load

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Determine weight & centre of gravity

Determine type of sling & slinging method

Determine most secured points of lift.

Ensuring Safe Slinging

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Ensuring Safe Slinging

Select most appropriate sling type & safe working load

Examine slings for defects before use

Apply slings where load is well balanced

Ensure sling does not cause damage to load or load damage to slings

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Provide padding whenever necessary

Attach tag lines to control & prevent swaying

Consider ground level obstacles

Ensure load is free from restraint before lifting

Ensuring Safe Slinging

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Roles & Responsibilities of a RiggerRoles & Responsibilities of a Rigger

Prepares and ties load before hoisting

Acts as a signalman when signalman is not available to guide crane operator

Familiar with general rigging methods, estimating loads and centre of gravity

Familiar with standard crane operation signals

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Roles & Responsibilities of a RiggerRoles & Responsibilities of a Rigger

Able to select proper lifting gears suitable for the job

Controls movements of load safely

Keeps public and unauthorised personnel away from lifting zone

Directs load posing no danger to people and structure

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Duties of Signalman

Completed training course approved by MOM

Be attired distinctively to be identified as a signalman

Ensure / verify with rigger that load is properly rigged before giving lifting signal

Give correct and clear signals to guide crane operator in manoeuvring load safely

Ensure proper lifting gears used with sling

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Lifting Supervisor

Completed training course approved by MOM

Relevant years of experience

Co-ordinate all lifting activities

Ensure only registered crane operator, appointed riggers and signalmen involved in lifting activities

Ensure ground conditions are safe for lifting

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Lifting Supervisor (cont’d)

Ensure safe lifting procedures available when he is absent

Brief all crane operator, rigger, and signalman on safe lifting procedures

Rectify unsafe or unsatisfactory conditions, or ensure lifting is carried out safely.

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Crane Operator•Registered by MOM•Ensure crane is positioned and operated as to be stable•Ensure suspended load is not moved over any person in the worksite•Ensure no load is left suspended on the crane when it is not in use

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Crane Owner•Ensure good construction, sound material and adequate strength free from patent defect and properly maintained

•Ensure capacity chart is posted and clearly visible. Capacity chart by manufacturer or AE

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Group Discussion

• Explain the role and duties of lifting supervisor for mobile crane lifting in a construction site.

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Group Discussion Explain the role and duties of lifting supervisor for mobile crane lifting in a construction site.• Completed a training course approved by WSH

Commissioner;• Ensure crane operator is registered, appointed rigger

and signalman are trained in lifting operation;• Ensure all ground conditions are safe for lifting

operation;• Ensure a system of safe lifting procedure is available

for any lifting operation during his absence; • Conduct safety briefing to crane operator, rigger and

signalman on safe lifting procedures; and• Rectify any unsatisfactory or unsafe conditions, or

otherwise ensure any lifting operation is safely carried out.

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY

Group Discussion

• Explain the requirements for mobile crane lifting in a construction site.

– Appointment of lifting personnel.– Lifting machines and lifting gears.

Construction Industry Training Institute

Management of Safe Work Practices Rev Date march 2004/PY