Lifting machinery maintenance requirements
A construction crane maintenance contract, system and plan
(a) building lifting units do not have the corresponding lifting equipment installation engineering contractor qualification certificate, shall be installed in the heavy machinery building informed before signing the construction hoisting machinery maintenance contract and accident emergency rescue contract and equipment installation and maintenance units, by the equipment installation and maintenance units for construction lifting mechanical maintenance management system, equipment maintenance plan, accident emergency rescue plan. Equipment maintenance contract should specify the contents of equipment maintenance (should not be less than the requirements of the fourth points of this paper), cycle (should not be less than the requirements of the fifth points in this paper) and responsibility. The accident emergency rescue contract should define the accident emergency rescue responsibility person, the responsible person mobile phone number and commitment service work time and reaction time.
(two) building lifting units with the corresponding lifting equipment installation engineering contractor qualification certificate, shall be installed in the heavy machinery building informed before making the construction hoisting machinery maintenance management system, equipment maintenance plan, accident emergency rescue plan, the requirements of building hoisting machinery maintenance specific content management system and equipment maintenance plan for equipment maintenance are clear (should not be less than the fourth point requirements), cycle (should not be less than the fifth point requirements and responsibilities). The emergency rescue plan for unexpected situations should define the accident emergency rescue responsibility person, the responsible person mobile phone number, the commitment service work time and the reaction time.
(three) no night maintenance construction crane.
Two, construction crane use management
(a) the construction hoisting machinery before use, the general contractor of the construction, installation and maintenance units, sub units supervision units to work together to conduct joint safety tests on equipment operating personnel, signal command personnel and maintenance personnel, signed by the responsible personnel. Joint safety technical disclosure can be used in the "Guangdong construction safety management unified table" related equipment operation safety technical disclosure form and related equipment safety operation procedures.
(two) construction crane operators should strictly implement safety operation rules and relevant safety operation regulations in the operation, establish the shift shift system, and fill in the corresponding records.
(three) in each class before and after the operation, the general contractor of the construction project management personnel shall be in accordance with the "on the establishment of the construction site of vertical transportation equipment inspection system notice" (Shunjian telex No. 4.63) requirements, in conjunction with the operating personnel to implement the inspection and record, the hidden dangers of accidents or other unsafe factors. Shall be dealt with immediately; in case of emergency, you can decide to stop the use of equipment and timely on-site safety management personnel and the relevant responsible person report.
(four) construction crane cab should be equipped with a content operation and maintenance manuals, and related equipment for the joint safety technical clarificaiton operation safety technical disclosure form and related equipment safety operation procedures, equipment maintenance and post maintenance unit service hotline, accident emergency rescue responsibility, responsibility mobile phone number. The mobile crane should be equipped with mobile phone for the lifting equipment of the construction crane (but the operation is prohibited to answer the telephone), so as to report the abnormal situation and information of the equipment in time.
(five) construction general contractor should strictly implement the provisions and laws, regulations and standards for safety production, do corresponding safety protection work, and set safety warning sign prominently.
(six) the construction general contractor should set up corresponding equipment management institutions or full-time managers according to the actual situation. Construction general contracting unit equipment management organization management personnel should be familiar with the mechanical properties of building hoisting machinery used in regular inspection, found that the problem should be dealt with immediately; in case of emergency, have the right to decide to stop the use of equipment and report to the relevant person in charge.
Three, equipment maintenance requirements
The installation and maintenance units shall formulate the maintenance and repair system according to the relevant requirements of the equipment safety technical performance, and implement the maintenance work according to the following procedures and procedures:
(a) before the installation of safety inspection and maintenance: the main institutions to check the performance of equipment integrity, visible defect inspection of the main steel structure and connecting piece and a pin, bolt, corrosion, surface inspection equipment installation record, issued opinions.
(two) daily maintenance after delivery of equipment: daily maintenance should be responsible for the operation of the equipment drivers or full-time staff of the unit, installation and maintenance units have the responsibility of supervision and inspection of the daily maintenance content. The main contents of daily maintenance are summarized as "cross operation method": cleaning, fastening, lubrication, adjustment and corrosion protection. A day before classes, the class at the end of 10 to 30 minutes, patrol equipment each part, each part is normal, according to the provisions of lubrication, pay attention to the mechanical operation sound is normal, do the clean work and shift work, in order to achieve the normal operation of equipment neat appearance, the purpose of daily maintenance records and shift records to be made into a fixed form. And as the archives management.
(three) periodic inspection and maintenance of equipment during use: maintenance and repair of machinery and equipment in the specified time, with cleaning, lubrication, adjustment, disassembly and maintenance as the central content. General by maintenance personnel and operation personnel together to complete.
(four) overhaul requirements (recommended, as is not mandatory): overhaul is the dynamic performance of equipment in the main assembly have reached or close to their life and mechanical decreased significantly, increased fuel consumption, understeer, abnormal sound or equipment has not been able to play the production performance of normal conditions. Take a comprehensive and thorough restorative repair means, make the equipment from nature (technical performance) and from appearance (re painting) should reach the goal as the old new. Overhaul should be responsible for the implementation of maintenance professionals, have a record of acceptance. For more than and close to retirement age of the equipment before installation should provide overhaul inspection certificate.
Four, equipment maintenance content
In addition to the lifting crane of mobile crane, regular maintenance of equipment shall include at least the following contents:
(a) the following contents of manuals or instructions:
1. regular inspection (including daily inspection, weekly inspection, check the contents of all quarters);
2. inspection, cleaning, lubrication, tightening;
Replacement of 3. wearing parts.
(two) safety device, electrical protection apparatus, inspection, testing and replacement, should comply with the "construction safety regulations", "lift GB10055-2007 tower crane safety regulations" GB5144-2006, "crane safety regulations", "construction machinery using GB6067-85 security technology regulations", "Longmen JGJ 33-2001 frame and headframe hoist safety technology JGJ 88-92 of the corresponding specification" requirements.
(three) other periodic inspection contents:
The state changes of 1. concrete foundation, anchor bolt, wall device, cable wind rope, ground anchor;
2. structural deformation, cracks, corrosion and other visible obvious defects;
3. the connection of the structural parts and the pin, bolt, positioning plate and flange of the connecting parts, the corrosion situation and the pin positioning (especially the connecting pin of the boom);
4., the operation of the mechanism, especially the brake action and performance (no-load); brake wear: brake pad thinning, adjusting device, noise, etc.; parts wear;
5. safety protection device and the limiting device reliability and accuracy;
6. wire rope, pulley or gear, rack wear and wire rope end in the drum fixed state;
7. hydraulic pressure, pressure gauge, oil level, oil, joints, fittings, oil spill;
8. hook, hook nut and locking device: deformation, crack, visible wear;
9. tightening force of connecting bolt: check with special wrench, strength of standard joint bolt, once crack occurs, not allowed;
10. lifting moment and lifting weight limiter: prohibit arbitrary adjustment, replacement parts should be re lifting debugging;
The 11. part: electrical installation is no loosening, no noise, no work wire aging, there are no vapor condensation, neat, cable line code correctly;
12 lubrication: gearbox oil level to meet the requirements, does not allow the existence of the phenomenon of oil leakage;
13. grounding resistance and insulation of wires and cables;
The reliability of rope breaking protection device 14. derrick material hoist;
15. power system and control system.
Five. Periodic maintenance of equipment
Tower crane, construction elevator and regular inspection and maintenance period of not more than once a month.
Derrick material hoist regular inspection and maintenance period of not more than once every couple of months.
Six. Equipment maintenance records
The installation and maintenance units shall formulate the periodic maintenance records of the hoisting machinery with numbering, and record the contents of maintenance.
Each construction hoisting machinery maintenance, equipment installation and maintenance units issued by the construction hoisting machinery maintenance record and store heavy machinery technology archives in construction, equipment installation and maintenance unit inspection and maintenance should be stamped signature, respectively. In addition, equipment installation and maintenance units should also be timely to fill in the resume of the manual "equipment maintenance record", the content should include the construction hoisting machinery maintenance records form number, equipment installation and maintenance unit inspection and maintenance should be stamped signature, respectively.
