Lifting & Crane Safety

Lifting & Crane Safety

Today our topic is Lifting & Crane safety & we will cover Types of crane, Parts of Crane, Lifting Hazards, Lifting & Crane Safety precautions.

Cranes are basically used to shift, lift the heavy materials and loads from one place to another.

Types of cranes at construction site:

1. Crawler crane with a fixed boom

2. Telescopic & mobile cranes

3. Rough Terrain crane

4. Tower Crane

5. Floating crane

General parts of crane:

1. Outrigger with spreader mates

2. Center pin

3. Superstructure

4. Crane cabin

5. Boom

6. Main and auxiliary hook

7. Anti tube block/limit switch.

Lifting & Crane Hazards:

Shifting of materials from one place to another place using Crane and Boom truck (Lifting) is a critical work which has the following hazards:

1. Falling of load

2. Hitting & crushing of a load to existing facilities

3. Toppling of Crane

4. High wind speed, Poor communication and poor visibility

5. Damage to underground utilities of earth.

Lifting & Crane safety precautions:

1. Soil or ground condition shall be checked and should be leveled.

2. Spread mate shall be used size 1:3.

3. Outrigger shall be fully extended and at least 1 meter away from manholes and trenches.

4. Do not overload, always lift up to SWL (safe working load).

5. Crane shall be used up to 75% of its capacity as per KNPC regulation.

6. Do not operate crane in high wind and raining conditions.

7. Barricade the swinging radius of crane and don’t allow unauthorized persons except for trained and certified rigger.

8. Rigger should wear a jacket.

9. The only rigger can give signal to the crane operators.

10. Minimum two tag lines shall be used to control the swinging of load.

11. Man entry is not allowable under the suspended load even if he is a rigger.

12. Straight, basket, and choker hitch shall be used.

13. Crane should have a reverse beep horn.

What are the things we have to check in cranes?

1. Hot work permit or lifting permit before starting of job.

2. If more than multiple cranes are using risk assessment shall be done.

3. Crane third party certificate, validity one year ( plate number, validity, any remarks and number of falls).

4. Operator third party & license.

5. Rigger third party and its validity (one year).

6. Safety certificate and fire extinguishers of the crane.

7. Crane outriggers and mates.

8. Crane computer function.

9. Anti tube block/limit switch (it will stop the function of crane hook once it touches and it will prevent from hook from hitting to top boom pulley.

10. Lifting appliance like (wire rope sling, webbing sling, D shackle, chain block) third party certificate (validity 6 months) and don’t use beyond its SWL.

11. Damage and expired lifting tools and tackles shall not be used.

12. Safety latch of a main and auxiliary hook.

13. A hydraulic leak of oil.

14. The cabin of crane shall be free from blind spot.

15. PPE of working crew especially leather gloves for rigger and safety harness.

Questions:

1. Explain the crane parts in detail?

2. What are hazards of crane operation?

3. What points will u check in crane third party?

4. What is the crane capacity for lifting?

5. What point will u check in crane as a safety supervisor?

6. What is the use of anti tube block?

7. What is the use of tag line?

 

Man Basket Safety – Basic Safety Requirements

Today our topic is Man Basket Safety & we will cover basic safety requirements of man basket.
Basic Safety Requirements:

· Third party certificate for man basket, slings, and master link should be available.

· Factor of safety for man basket and sling should be 7:1.

· Any man basket activity is considered as a critical and hence risk assessment shall be done prior to job.

· Load test shall be done by putting sand bag/related capacity load before sending of personnel every time.

· Angle of wire rope sling to basket should be more than 45^ (because if angle is less, sling of the basket will be subjected to maximum stress)

· Two tag lines shall be used to control the swinging of man basket.

· Life line shall be installed above the crane hook.

· Inspection of all PPE before use.

· Approved fall protection equipment should be wear.