tighten the other maintenance that can eliminate the fault

Five ) to determine the cause category
Big crane wheel failure can be divided into two categories original N , one is mechanical damage , and the other connected to relaxation , the gap increases. For the damage of the former , the latter kind of non -invasive that while " some non- invasive cause of the malfunction is difficult Jin Ming , must be carefully analyzed .
( Six ) to determine repair solutions and repair all impurities intrusion, pipe blockage , even traumatic cause of the malfunction is usually easy to check
On wheeled cranes noninvasive phase fault within the shell requires cleaning , lubrication , supplemented, adjusted , tighten the other maintenance that can eliminate the fault . The injury also pick up enterprises to determine fault to determine which parts need to be replaced sail * what needs to be repaired , according to the process and equipment conditions , and to determine the economics of repair parts for repair based on other factors to consider.
Repair replacement parts ready , in strict accordance with the reverse order of removal recorded on the Electric hydraulic stacker process or system restore individual parts assembled one by one until the entire installation. Appropriate in the course of maintenance work simultaneously .
For the repaired portion , functional tests should be carried out locally or overall performance test, only confirm the overall performance has met the requirements, the energy delivered.
Some wheeled cranes member relative in prison is a very important component , such as arm , frame , slip girders, axle, with luffing rope hoisting , luffing telescopic cylinder and piston rod . From these components, parts , components, damage caused by the failure often result in serious text Buggy put Gang Here, the repair should take extra care of their cup tie .

Wheeled crane safety technology

If you are using and managers to fully understand the whole structure , principles, technical performance, design specified conditions of use , security technology , you will get the best results .

Crane various properties in the actual production can be fully played , depending on the actual use are reasonable. If resorted to improper maintenance , heavy machinery wheeled Zhao difficult to be electric order picker, will exacerbate the wear and cranes sail affecting life , and even cause accidents. If you are using and managers to fully understand the whole structure , principles, technical performance, design specified conditions of use , security technology , you will get the best results . This section focuses on the use of mobile cranes described in security technology.
( A ) the operator
Crane operators should be subject to strict Luo theoretical training expertise and practical technical training , proficiency in vehicle driving and crane operators two technologies. Not only to master the crane structure , working principle and technical performance, and should be read in various cooked Random technical documents, such as hand stacker, manuals performance , operation and maintenance manuals and safe use of rules , but also memorize the various provisions in the operation signals master - · some basic knowledge and skills.
( Two ) safe working environment conditions
Cranes at work due to bad weather, such as high winds, thunderstorms, big men , etc., should stop work ; prohibited in a landslide hazard venue working near transmission lines ; at night or in the operator 's view is obstructed operating conditions , there must be reliable measures , and must be directed with the job ; complex field operations in terms of personnel , generally set Starsky signs and safety fence, or by hand, as the security guard on duty .

The minimum steady speed wheeled crane commissioning

This is the minimum steady speed of wheeled cranes debug introduced into working conditions, methods and requirements of three parts
1. Debug condition
Base pipe frame, engine rated speed, rated amplitude maximum rated lifting weight lifting
2. Debugging method
 Manipulation engine throttle control movement speed and other institutions * are the electric lift table, down, left and right turning movements reach a steady speed as low as possible. Determination of uniform through - determine the distance required time period, drum trucks movement distance of not less than 1m, rotary motion angle of not less than 180. , Were calculated from the rise, fall, swing the minimum steady speed, and with the requirements of crane design data comparison.
3. Requirements for commissioning
(A) single rope hoist rated speed, rated rotation speed, no load rotation speed is not less than the design value.
(2> The maximum rated lifting capacity crane operations, lifting, and turning down the minimum steady speed shall not exceed the total community