Job Hazard Analysis For Crane Dismantling

JOB HAZARD ANALYSIS – Crane Dismantling

SI.NO

1

Sequence of job

Lowering tower head removal of mast piece reduce height of mast

Potential hazards

the and the to Incompetency the hydraulic power the operator Physical inability workforce

Protective measures to be taken

Action by

The worker engaged in operating power pack shall possess adequate experience Safety & of in telescoping of the tower crane and Electrical pack he shall be authorized to carry out such Engineer job

of All the workers shall undergo required medical and physical test In no case the load shall be lifted during Wind & rain heavy rain or wind. Proper access from inside the tower crane to cage assembly may be provided; If not use of full body harness Improper access may be ensured. The dismantling of tower crane shall be done in daylight only. In case the work Poor illumination extends in dark hours adequate lighting with illumination not less than 20 lux shall be maintained. Non usage of PPEs Use of proper PPEs like Full body harness Helmet safety shoe hand gloves etc shall be ensured during the work Loose tools and The loose tools and tackles like tackles on the mast hammer, bolts, pins, wrenches, Dplatform shackles shall be kept secured over the platforms while in use and should be immediately brought down after the completion of the work. Communication barriers No obstruction for the operator Visually as well as oral (walky-talky) communication Lack of supervision The competent supervision with relevant section of MI (manufactuer's instruction / manual) shall be available Imbalance of tower crane Before removing the connectors of the fish plate (i.e Tower head to mast connection) balancing of the tower crane shall be done by mounting one mast piece over the monorail and lifting the other mast piece with the hook block with adjustment of the trolley (radius).

SI.NO

Sequence of job

Potential hazards

Fall of person

Fall of materials

2

Dismantling of Incompetency of Crane mast segments operator, signal man and riggers. Physical inability of workforce Untested cranes and tools and tackles Wind & rain Lack of knowledge about the load to be lifted Poor illumination Poor housekeeping Communication barriers Lack of supervision Stability of the subsurface of the crane Bare electrical live cables

Protective measures to be taken

1. Use PPE like safety belts, lifeline, helmets, safety shoes, etc. 2. Obtain a permit before starting the erection work. 3. Keep the work place neat & clean. 4. Avoid movement on Mast. 5. Remove the scrap immediately. 6. Provide proper working space (min 0.6m). 1. All tools to be carried in a tool -kit bag. 2. Do not throw or drop materials from height. 3. Remove scrap from the mast. 4. Ensure wearing of PPE' by the workers at low level. Engage trained, experienced and authorized operators, signal man and riggers. All the workers shall undergo required medical and physical test Only load tested cranes, tools and tackles to be used. Use of Tag lines shall be ensured during material handling. Load to be lifted must be as per load chart/ less than SWL for the particular radius. Adequate Lighting and illumination to be maintained during the work at night. Proper housekeeping to be maintained No obstruction for the operator Visually as well as oral (walky-talky) communication Ensure supervision during loading of the crane components Crane to be erected on firm base or rigid surface As far as possible avoid live electrical cables to pass over the area of loading, if exists, then the cable should be damage free and routed properly with tripping arrangement.

Action by

Safety & Electrical Engineer