Anchor Frame Collar 290HC Mast Liebherr

Products Specification

Type , Model: Anchor Frame Collar 290HC Mast Liebherr

Size: 290HC ,2.3mx2.3mx4.14m masts

Brand: Liebherr tower crane

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.

Anchor Frame Collar 290HC Mast Liebherr

Tower Crane Knowledge sharing：

Maintenance of medium and high voltage circuit breaker and operation mechanism of large tower crane

Maintenance of medium and high voltage circuit breaker of large tower crane

Tower cranes are now mostly jack-up tower cranes, are inseparable from the oil pump and cylinder. Therefore, the oil breaker is an important part in electrical appliances. If the oil

Too much, the switch oil has risen to the top of the tank. The arc is not cut off. The oil tank in the tower crane will have serious oil injection or oil tank leakage. If the oil

Anchor Frame Collar 290HC Mast Liebherr

If it's too small, the gas will still be produced. A large amount of oil vapor is released into the oil surface to mix with air. It's possible to reach a certain percentage

There will be an explosion. All, usually must patrol the circuit breaker oil level, maintain at the standard level. The oil circuit breaker shall be inspected regularly in normal operation

Check oil level and color in oil label. Listen to the sound. Check the shell for oil seepage. Check whether the signal plate of the operating mechanism is correct.

Whether the fastening parts are loose. Check the insulation bottle for cracks. Damage, no flashover marks.

Maintenance of tower crane operating mechanism

Anchor Frame Collar 290HC Mast Liebherr

1. Carefully observe whether the operation of each part of the tower crane is flexible. There is no jam and friction and other abnormal phenomena. Correction if necessary.

2. Remove the connecting rod, support plate, shaft and pin of each part of the tower crane. Wash with gasoline, check all parts for wear and deformation, eliminate

Find the defect and apply oil to the moving part. To make the operation flexible.

3. Before connecting with the switch, rotate the spindle several times, and the spindle should be able to be freely reset by the spring on the spindle.

Anchor Frame Collar 290HC Mast Liebherr

4. Common faults of operating mechanism are brake failure, closing failure, coil burn out, generally due to positioning screw dislocation or loosening, magnetic remanence

The opening of the iron core, the opening or the inner loop of the brake copper sleeve is not round. Is not smooth. Iron core has burr to produce stuck acerbity phenomenon. The iron core of the oil tank in the tower crane

The top buffer spring breaks and the switching contact is switched without reset. Tower crane electrical equipment is an important working mechanism, must be on the tower crane electrical

Know how to use and maintain the equipment. In order to better play the role of electrical tower crane. The stand or fall of electric equipment also decided tower crane price

The high and low. Therefore, must choose the high quality tower crane electrical equipment

Anchor Frame Collar 290HC Mast Liebherr