Fixing Angles H20B Mast Terex Comedil

Products Specification

Type , Model: Fixing Angles H20B Mast Terex Comedil

Size: 1.9M

Use for : Terex Comedil H20 , H20A ,H20B mast  1.9mx1.9mx3.75m

Materials: Q345B

Process: Blasting derusting, 

Painting:  Under painting , Middle painting, Surface painting.

Our factory produce and supply almost all famous brand tower crane :Mast section, Anchor Frame, Fixing angle ,Adaptor and so on as good quality and price.

Fixing Angles H20B Mast Terex Comedil

Tower Crane Knowledge sharing：

How to do the tower crane maintenance records, what is the name of the project

How to do the tower crane maintenance records, what is the name of the project

Project name: ** garden

1. the operation of the mechanism, especially the action and performance of the brake (no load) : brake wear: brake pad thinning, adjusting device, noise, etc. : parts wear

2. Reliability and accuracy of protection device and safety limiting device

3. wire rope, pulley block or gear, rack wear and wire rope end in the drum fixed state

4. Hydraulic device: pressure, pressure gauge, oil level, oil products, joints, pipe fittings, oil leakage

Fixing Angles H20B Mast Terex Comedil

5. hook, hook nut and anti-loose device: visible deformation, crack wear; Maintenance items

6. Pre-tightening force of connection bolts: check with a special wrench, strength grade and content of standard connection bolts, and do not use them in case of cracks

7. Lifting moment and lifting limiter; Do not adjust at will, replace parts should be re-hoisting debugging

8. Electrical installation: no loosening of parts, no noise during work, no aging of wires, no condensation of water and air in the box, neat wiring and correct wiring code

9. Lubrication; The oil level of the transmission box meets the requirements and no leakage is allowed.

10. lightning resistance value, wire and cable insulation; Grounding resistance

11. Power system and control system.

Name and quantity of replacement parts; maintenance effect and conclusion; inspector's opinion; maintenance unit's opinionconstruction unit's opinion; inspection conclusion

Fixing Angles H20B Mast Terex Comedil

Maintenance system for tower crane metal structure parts, steel wire rope, mechanical parts and slewing support devices

Tower crane technology, this article first summarizes the cause of tower crane accidents easily, then summarizes a series of tower crane maintenance system, tower crane metal structure repair and maintenance, the wire rope and the maintenance of tower crane.

Tower crane mechanical parts for maintenance and repairs, tower crane slewing bearing device maintenance, and other main components of tower crane maintenance and maintenance.

Easily cause tower crane accident

1. Do not pay attention to the maintenance of the lifting weight limiter, or increase the limit value, so that the lifting weight limiter does not have the function of limiting protection.

2. The lifting mechanism brake is not adjusted properly, it is too loose. In the case of high speed under heavy weight, due to the action of inertia and can not be stopped, resulting in sliding down the car.

3. Automatic rate changing mechanism: when changing from 2 rate to 4 rate, the switch is not in place, and the inspection is not paid attention to, or the safety pin is not added. In the lifting process, the movable pulley will suddenly fall, causing a major accident.

Fixing Angles H20B Mast Terex Comedil

4. The wire rope is badly twisted, which is not removed in time and used forcibly.

5. Due to the landing of the hook, loose wire rope rebounded, wire rope jumped out of the reel or pulley, seriously injured or broken, and not timely replacement, in full load or overload lifting, causing broken rope fall.

6. The wire rope end rope buckle nut is not locked tight, so that the rope head slip out.

Repair and maintenance of metal structural parts of tower crane

1. Strictly implement the scrap standard for steel structure parts of cranes.

2. Check the metal fatigue strength, weld crack, structural deformation, damage and other conditions of the structure parts under the main stress; check the key welding seam of the structure parts under the main stress and the base material in the welding heat affected area

If any abnormality is found, deal with it. Inspection of structural parts shall be carried out according to the following procedures:

(A) daily inspection: the tower crane shall conduct A daily inspection every 80 hours. When the tower crane driver is changing shifts, he should check the fastening of bolts at all connecting parts, and tighten them in time if there is any looseness.

(B) in case of any abnormal sound, wrong operation or malfunction of the tower crane safety protection device, the tower crane shall be inspected and recorded.

(C) when a project is completed and the tower crane is dismantled, it shall be inspected in detail and recorded by engineering technicians and professional maintenance personnel.

3. In the process of transportation, the deformation and collision damage of structural parts shall be prevented as far as possible.

Spray paint every six months to a year. Before painting, remove all rust, grease and other dirt from the metal surface.

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