Precautions for the use of the crawler crane forced switch.Thailand Excavator sprocket
When the crawler crane is in the state of disassembly, overload, minimum amplitude, maximum amplitude, etc., in order to ensure the safe operation of the equipment, some movements will be restricted. When this happens, do you know how to solve it?Thailand Excavator sprocket
A forced switch is installed on the crawler crane, which can be used to release the relevant action restrictions, but if it is not used in a standard way, it may cause serious consequences. This switch, which brings convenience to the operation, will become the key to open the “Pandora’s Box”. In order to ensure work safety, let’s take a look at the correct use of the forced switch.Thailand Excavator sprocket
01. At present, there are two main types of forced switches: reset type and non-reset type, which are located inside the electric control cabinet behind the cab or under the electric control cabinet.
The reset-type forced switch, as the name implies, can be automatically reset. When it is turned on, it only needs to be kept for 1-2s to automatically reset;
Non-resettable forced switch, the switch state needs to be controlled with a key.
02. When the crawler crane is in normal operation, it is forbidden to turn on the forced switch. We can check whether the forced switch is turned on by checking the display interface. If it is turned on, please turn it off in time!
The forced switch can only be used in an emergency when the vehicle is assembled, disassembled, undercarriage or fault checked. Those who are not professionals or do not understand the requirements for using the forced switch are prohibited from using it.Thailand Excavator sprocket
Precautions
After the emergency use of the forced switch is over, turn it off in time.
Pay attention to the overload alarm signal. After the forced switch is turned on, if the equipment is in an overload state, although it will alarm at this time, the hoisting action will not be restricted. If it continues to hoist, it may cause damage to the boom structure or the whole machine, which may cause serious accidents. .Thailand Excavator sprocket
During the disassembly and assembly process of the crawler crane, some restrictions in the unloading state can be lifted by turning on the forced switch, but when using it, care should be taken to avoid mechanical damage caused by misoperation of disassembly and assembly.
When the forced switch is on, the protection functions of safety limit devices such as height limit, over-elevation, over-discharge protection will no longer work, and the force limiter system will only alarm but not limit the movement. Observe the working status of the crane to prevent the overwinding of the hoisting and hoisting, resulting in damage to the wire rope or pulley block!Thailand Excavator sprocket
Please keep in mind the above usage methods and precautions. After the parts of the vehicle are faulty, you should replace the parts in time. Do not use the forced switch for a long time during construction. For the safety of construction, use the forced switch in a standardized manner.Thailand Excavator sprocket
Post time: Aug-11-2022
