MD265 J12 Tower Crane Lease Rent Hire

MD265 J12 Tower Crane Lease Rent Hire

Series , Luffing jib Crane, Topkit tower crane, Hammer head tower crane, Topless tower crane, Flat top tower crane,

Model,

Jib length,   m

Max load,   Ton

Tip load,    Ton

Type, Stationary , Inter climbing ,Travelling,

And other Famous brand, Model ,  Depend on the brand , Model Ability , Year , Height and etc u want.

We have large units store.  From 6Ton to 20Ton. Store and Service all over the world.

Mean time , We supply all the Spare Parts U may need as follow,

Masts Section ,  Anchor Frame, Collar ,Tie , Fixing angle , Cabin, Hoist mech. Trolley mech. Luffing Mech. Slewing Mech. Pulley and etc.

MD265 J12 Tower Crane Lease Rent Hire

Tower Crane Knowledge sharing：

Debugging method for lifting torque limiter of trolley variable amplitude tower crane

Debugging method of lifting torque limiter of trolley variable amplitude tower crane. In this paper, taking the lifting torque limiter applied on QTZ63 tower crane as an example, the debugging method of bow plate type torque limiter of forerunner tower crane is as follows

MD265 J12 Tower Crane Lease Rent Hire

1. When the hook is no load, use the screwdriver to distinguish the down stroke switches 1, 2 and 3, and confirm whether the three switches are sharp and reliable.

(1) stroke switch 1 is the limit switch of 80% rated torque, press down the switch, buzzer alarm on the linkage table.

MD265 J12 Tower Crane Lease Rent Hire

(2) stroke switch, 3 for additional torque limit switch, press the switch, lifting mechanism pick up with the luffing mechanism forward working power supply are blocked, lifting hook can only land, luffing car can only run backward, and linkage stage ablating light flashing, beeping continuous alarm.

2. When adjusting the hook, it should adopt quadruple ratio and break the height of 40 meters, lift the heavy object slightly off the ground, and the car may run.

3. When the working range is 50 meters long, the trolley runs to 25 meters, and the lifting weight is 2290KG. When the lifting weight is safe from the tower crane, the adjusting screw should be changed with the stroke switch 1, and the corresponding adjusting nut 7 should be tightened.

4. Adjust torque limiter and adjust stroke switch 2 according to fixed-amplitude variable code.

5. Adjust the torque limiter according to the fixed-code amplitude change, and adjust the stroke switch 3.

MD265 J12 Tower Crane Lease Rent Hire