Risk Assessment for Tower Crane Installation-Erection

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ACTIVITIES

1- PRE-COMMENCEMENT ACTIVITIES

Pre-approval of foundations for the rail system installed at the site, including the electrical supply
Pre-Commencement Activities (Obtaining Method Statement, J.S.A. and STARRT Form)
Site preparation Slinging preparation

2- TRANSPORTING MATERIALS

Ensure the safety of Components of Tower
Crane from Outside (the crane parts have been dimensioned in such a way that no special transport arrangement is needed)
Ensure the counterweights on a truck
Receiving equipment/materials at the site (the reception and unloading of the parts must be performed systematically)
Unloading Material using Mobile Crane

3- ERECTION and INSTALLATION OF THE RAILING (TRAVELLING CARRIAGE) TO APPROVED FOUNDATION

The travelling carriage comprised one fixed and two mobile chassis beams which are linked together using PINS & ensure the PINS was attached.
The boogies must BE LOCKED PROPERLY AND SECURELY to the track rails using rail clamps for the duration of the erection.
Using mobile crane
Bolting of the railing

4- ERECTION and INSTALLATION OF CLIMBING CAGE

Using mobile crane
Tightening of the loose grate’s screws
The attached top of the tower and slewing ring with planes are lifted in place and fastened to the tower by a screw joint
Working at heights

5- GROUND ASSEMBLE OF COUNTER JIB AND SUPPORT BARS

Using mobile crane
Bolting, hammering, and screwing

6- ERECTION and INSTALLATION OF COUNTER JIB AND SUPPORT BARS

Using mobile crane
Electrical connection
Working at heights
Tower top crane assemble

7- ERECTION AND INSTALLATION OF COUNTERWEIGHT

Using mobile crane

8-ERECTION and INSTALLATION OF OPERATOR CABIN

Using mobile crane
Installation of control cables and electrical to the operator cabin.
Placing a ballast weight into the hook (All jib lengths are balanced with a 2000 kg weight
Ballast weight)
Installation/connection of hydraulic system, aggregate, and hoses (including electrical
supply)
Climbing and Jacking continued along the climbing cage
Erecting the tower part (Lock Pin,
Balancing weight, Special strops, Adjustment devised of the trolley’s transfer rope) use of Tower crane