GB 10054-1988 Technical conditions for construction hoists GB10054-88
Some standard content:
Engineering Construction Standard Full Text Information System
National Standard of the People's Republic of China
GB10054—88
Technical Conditions for Construction Hoists
Building hoists-SpecificationBuilding Standard
1988-09-15Promulgated
Ministry of Construction of the People's Republic of China
1989-01-01Implementation
W Engineering Construction Standard Full Text Information System
National Standard of the People's Republic of China
Technical Conditions for Construction Hoists
Bullding hoistsSpecification1 Subject Content and Scope of Application
UDC621.876
GB10054—88
This standard specifies the performance, manufacturing, installation, safety, appearance, marking, packaging and other requirements of construction hoists (hereinafter referred to as hoists). This standard applies to hoists specified in GB10052. This standard does not apply to hand elevators, mine hoists and dispatching winches. 2 Reference standards
GB1955 Construction winch
GB3811 Crane design specification
2 Classification of construction hoists
GB10052
3 Inspection rules for construction hoists
GB10053
GB10055
Safety rules for construction hoists
6 Test methods for construction hoists
GB10056
3 Terminology
3.1 Speed error (M)
error rate of speed
When the cage of the elevator is loaded with rated load, the difference between the rated lifting speed (rated) and the measured speed of stable ascent (an), and the ratio of the rated lifting speed ():
M=class-0
3.2 Test height of the guide frame assigned height of the testing mast The lowest guide frame installation height when the elevator is undergoing performance test and reliability test, m. 3.3 Class A failure class A failure
A failure in the elevator that endangers personal safety, or causes serious damage to parts that affect the basic functions of the elevator, forcing the normal operation to be stopped.
Class B failure
3.4 Class B failure
A failure that reduces the function of the elevator parts due to the failure of the parts. 3.5 Class C failure class C failure
A failure in the elevator parts that has only a slight or almost no effect on its practical performance and does not cause downtime. 3.6 The time duration before the first "class B failure" occurs In the reliability test, the accumulated working time of the elevator before the first class B failure occurs, h. 3.7 Operating cycle
The cage of the elevator is loaded with materials as specified in the test load spectrum. The cage rises from the lower limit to the upper limit and the brake is suspended; then it goes down in the opposite direction to the lower limit and the brake is suspended. This movement process is called a working cycle. Approved by the Ministry of Construction of the People's Republic of China on September 15, 1988 and implemented on January 1, 1989
W. Engineering Construction Standard Full-text Information System
3.8 Fundamental operating cycles In the reliability test, the total number of operating cycles that should be completed is specified. 3.9 Mechanical speed limiter (referred to as speed limiter) mechanical type speed limiting device is a mechanical safety protection device that does not allow manual control, electrical, hydraulic and pneumatic control. Once the elevator accelerates abnormally and the instantaneous speed of the cage reaches the action speed set by the speed limiter, it will immediately brake the cage on the guide frame or slowly descend the cage; at the same time, its travel switch will operate to disconnect the electronic control circuit of the transmission system. According to the different braking characteristics, it is divided into three categories: a. Instantaneous speed limiter instant type speed limiting device is a speed limiter with large braking force that cannot be controlled, extremely short braking distance, violent action and large impact, such as steel clamp speed limiter; b. Progressive type speed limiting device is a speed limiter with a certain braking force (or braking torque) or gradually increasing, some initial braking force (or braking torque) is adjustable, its braking distance is long, braking is smooth and the impact is small, such as cone drum friction speed limiter; c. Uniform type speed limiting device is a speed limiter that can generate a certain braking torque, which can make the cage slide down to the bottom at a speed less than or equal to the speed limiter action speed and higher than the rated lifting speed of the elevator. 3.10 Tripping speed of speed limiting device According to the provisions of GB10055 and the rated lifting speed, according to a certain relationship, the triggering speed of the speed limiting mechanism in the speed limiter is adjusted. When the instantaneous speed value of the overspeed operation of the elevator reaches the speed value set by the speed limiter, the speed limiter will act immediately. 3.11 Mechanical rope breaking protection device (referred to as rope breaking protection device) safety device for rope breaking is a mechanical safety protection device that does not allow manual control, electrical, hydraulic and pneumatic control. When the hoisting wire rope of the cage or the counterweight suspension wire rope breaks, it will immediately produce a braking action to brake the cage or counterweight on the guide rail frame to avoid accidents. It is divided into two categories:
a. Instantaneous type
is a steel caliper brake with an extremely short braking distance and large impact. b. Damping retarding type
is a brake that produces a constant pressure, the brake pad is inlaid with non-metallic friction material, or is equipped with springs and oil pressure buffers, with less impact and a longer braking distance.
3.12 Safety hook safetyhook
is a steel hook-shaped component installed on the cage. During normal operation, it maintains a certain gap with the guide rail. Once an accident occurs, it can prevent the cage from detaching from the guide rail frame.
3.13 Buffer buffer
is a buffer device installed on the base of the elevator to mitigate the impact. When the lower limit switch fails and the cage goes down, it can absorb the impact kinetic energy of the cage. There are spring type and hydraulic type. 4 Technical requirements
4.1 Performance requirements
4.1.1 The type and specification series of the elevator shall comply with the provisions of GB10052. 4.1.2 Whether in working or non-working state, the elevator shall have the stability to withstand various specified loads without tipping over. 4.1.3 The anti-tipping stability torque of the elevator at the maximum independent free lifting height shall be 1.5 times the maximum tipping torque. 4.1.4 The metal structural parts of the elevator shall have sufficient strength, rigidity and stability. 4.1.5 For SS-type cargo and passenger elevators, there shall be no less than 2 cage hoisting wire ropes, and they shall be independent of each other. The safety factor of the wire rope shall not be less than 12, and the diameter of the wire rope shall not be less than 9mm. 4.1.6 For SS-type cargo elevators, one cage hoisting wire rope is allowed, and its safety factor shall not be less than 8. For elevators with a rated load of less than 300W. Engineering Construction Standard Full Text Information System
kg, a wire rope with a diameter of 6mm may be used. For elevators with a rated load greater than 300kg, the diameter of the wire rope shall not be less than 8mm.
4.1.7 For heavy-duty suspension wire ropes, the total safety factor shall not be less than 8, and the diameter of the wire rope shall not be less than 9mm. 4.1.8 The safety factor of the wire rope used on the speed limiter shall not be less than 5, and the diameter shall not be less than 8mm. 4.1.9 The safety factor of the lifting wire rope of the boom shall not be less than 8, and the diameter shall not be less than 5mm. 4.1.10 The ratio of the driving drum diameter, electric sheave and pulley diameter to the wire rope diameter of SS-type passenger and cargo elevators shall not be less than 40. 4.1.11 The ratio of the driving drum diameter, electric sheave and pulley diameter to the wire rope diameter of SS-type cargo elevators shall not be less than 30. 4.1.12 The ratio of the counterweight suspension pulley diameter to the wire rope diameter shall not be less than 30. 4.1.13 For elevators with a rated load equal to or less than 200kg and a rated lifting speed lower than 24m/min, chain drive is allowed to be used to make the cage run along the guide frame. However, there shall be no less than 2 chains in each drive system, and the safety factor of each chain shall not be less than 10. At least one chain shall be equipped with a tensioning device for balancing the tension at the end. An electrical safety switch shall also be installed. 4.2 Performance requirements for use
4.2.1 The elevator shall be able to operate normally under an ambient temperature of -20 to 40°C. If it exceeds this range, the user shall negotiate with the manufacturer according to special requirements.
4.2.2 The elevator shall be able to operate normally when the top wind speed is not more than 20m/s, and shall be able to erect and connect the guide frame when the wind speed is not more than 13m/s. If there are special requirements (such as use in areas with more typhoons), the user shall negotiate with the manufacturer. 4.2.3 The actual utilization level and load state of the elevator shall comply with the working level specified in the design task book. 4.2.4 The elevator should be able to operate under the conditions of voltage deviation of ±5% and total power supply power not less than that specified in the instruction manual. 4.2.5 During the dynamic test, the elevator should have the ability to operate normally with an overload of 25%, which shall be verified in accordance with the provisions of Chapter 3 of GB10056. Overload operation is not allowed during normal operation of the product. 4.2.6 Elevators with counterweights should also have the ability to statically overload 25% under their installation conditions (the rated load is the rated load under the installation conditions).
4.2.7 The base foundation treatment during the installation of the elevator should comply with the provisions of GB10055. 4.2.8 The reducer and hydraulic transmission system, according to the power connection duration (JC%) of the mechanism, under the rated load and rated lifting speed, the oil temperature rise shall not exceed 45°C (the oil temperature rise of the worm gear reducer shall not exceed 60°C) for continuous operation for 1h. 4.2.9 When the elevator is in normal operation, the speed limiter shall not be activated. When the elevator is abnormally overspeeded and the speed increases to the speed limiter action speed, the speed limiter shall be able to act immediately and brake reliably, and the power supply of the transmission system shall be cut off. 4.2.10 The transmission system, gears and racks, rollers and guide wheels shall operate smoothly during normal operation. There shall be no impact, vibration and abnormal noise.
4.2.11 When the cage stops at a certain operating height, it shall not slide down. When it restarts and rises in the air, instantaneous sliding down is not allowed.
4.3 Design, manufacturing and installation requirements
4.3.1 General requirements
4.3.1.1 The materials used to manufacture the elevator shall have a factory certificate of conformity from the material manufacturer and comply with the provisions of the relevant materials in GB3811. For those without a factory certificate of conformity, samples shall be taken for testing, and their chemical composition and mechanical properties shall comply with the standards of the relevant materials. 4.3.1.2 The surfaces of the exposed and disassembled pins, washers, handles, chains and other connectors shall be galvanized, passivated, bluing, phosphating or other surface treatments. The spring shall be phosphating; the piston rod of the oil cylinder shall be chrome-plated. 4.3.1.3 The high-strength bolts, nuts and washers used for connecting load-bearing components shall comply with the provisions of GB1228~1231 High-strength large hexagonal head bolts, large hexagonal nuts and washers for steel structures, types, dimensions and technical conditions. The matching tolerance grade of bolts and holes for reaming holes shall not be lower than the provisions of IT12 in GB1800 "General Tolerances and Fits Standard Tolerances and Basic Deviations". 4.3.1.4 The welding rods for manual welding shall comply with the provisions of GB981 "Welding rods for low-carbon steel and low-alloy high-strength steel". The selection of welding rod model shall be adapted to the strength of the component material and the type of load on the weld. 4.3.1.5 The welding wire used for automatic welding and semi-automatic welding shall comply with the provisions of GB1300 "Welding Steel Wire". The selection of welding wire and flux shall be compatible with the material strength of the main component.
4.3.1.6 The type of welding joint shall comply with the provisions of GB985 "Basic Types and Dimensions of Manual Arc Welding Joints" and GB986 "Basic Types and Dimensions of Submerged Arc Welding Joints". 4.3.1.7 Before welding, the welded parts shall be degreased and derusted, and the pre-welding shot peening process shall be adopted. 4.3.1.8 The tolerance of unmarked dimensions shall comply with the provisions of GB1804 "Tolerances and fits, limit deviations of dimensions without tolerances", and the tolerance grade of machined parts shall not be lower than IT15, and the tolerance grade of welded parts shall not be lower than IT17. 4.3.1.9 For parts and components where the shape and position tolerances are not specified, the tolerance grade shall not be lower than Grade D in GB1184 "Provisions for shape and position tolerances without tolerances".
4.3.1.10 Before painting, degreasing and rust removal shall be carried out, and shot peening shall be adopted. 4.3.2 Requirements for metal structural parts
4.3.2.1 The installation verticality tolerance value of the axis of the guide frame to the horizontal reference plane of the base shall not exceed the provisions of Table 1. Table 1 Installation verticality tolerance value
Guide rail frame installation height, m
Verticality tolerance value, mm
《Guide rail frame installation height
>70~100
>100~150
>150~200
4.3.2.2 For a guide rail frame composed of many standard sections, the standard sections shall ensure interchangeability. When splicing, the columns of adjacent standard sections shall be straight at the joint surface, and the step difference formed by mutual misalignment shall not be greater than 0.5mm. 4.3.2.3 The parallelism tolerance of the two end faces of the standard section shall comply with the provisions of Class 10 in GB1184. 4.3.2.4 The verticality tolerance value of the standard section axis to the end face shall not be greater than 1/1500 of the section length. 4.3.2.5 The straightness tolerance value of the standard section column (tube) shall comply with the provisions of Class 10 in GB1184. 4.3.2.6 The verticality tolerance value of the standard section column (tube) axis to the end face shall comply with the provisions of Class 10 in GB1184. 4.3.2.7 The clear dimensions of the cage of the passenger and cargo lift, the bearing capacity and safety of the bottom plate, etc. shall comply with the provisions of GB10055. 4.3.2.8 The racks on the SC type lift and standard section shall be firmly connected. The step difference of the two racks of adjacent standard sections at the butt joint along the tooth height direction shall not be greater than 0.2mm, and the tooth pitch error along the length direction shall not be greater than 0.5mm. 4.3.2.9 The driver's cab installed on the cage should have a good view and sufficient clearance, and be rainproof and well ventilated. The door should open sideways. When conditions permit, heat protection and heating devices can be installed, and adjustable and comfortable driver's seats can be installed. 4.3.3 Transmission system requirements
4.3.3.1 Mechanical transmission system
4.3.3.1.1 The mechanical transmission system designed and selected by itself shall comply with the provisions of Articles 4.1.6, 4.1.7, 4.1.114.1.13, 4.2.5, 4.2.8, and 4.2.10.
4.3.3.1.2 It should ensure smooth starting and braking without abnormal impact and abnormal noise. 4.3.3.1.3 Reducers with high efficiency, low noise, good stability and long service life should be used first. 4.3.3.1.4 The brakes in the transmission system should be normally closed and have sufficient braking torque. When the lift is in dynamic test and overloaded by 25%, it should be able to brake reliably.
4.3.3.2 Hydraulic system
4.3.3.2.1 Safety devices should be provided to prevent overload and impact. The adjustment pressure of the safety relief valve shall not be greater than 110% of the rated working pressure of the system. The rated working pressure of the system shall not be greater than the rated pressure of the hydraulic pump. 4.3.3.2.2 Oil filters and other devices to prevent oil pollution should be installed. The filtering accuracy should meet the requirements of the hydraulic components selected in the system. 4.3.3.2.3 The hydraulic oil should meet the quality performance standards of the oil and meet the working environment temperature requirements. 4.3.3.2.4 The oil tank should have sufficient capacity. Other hydraulic components should not overheat during operation. The temperature rise of the hydraulic system should meet the requirements of Article 4.2.8 of this standard.
4.3.3.2.5 Reliable balancing valves and hydraulic locks should be installed in the hydraulic system to prevent the hydraulic cylinder and working machinery from sliding down due to their own weight, or from overspeeding and falling down due to oil pipe rupture and leakage. W. Engineering Construction Standard Full Text Information System
Balancing valves and hydraulic locks should be installed directly on the hydraulic cylinder body as much as possible. 4.3.3.2.6 The oil pipes should be arranged neatly and convenient for installation, maintenance and inspection. The size of the oil pipes should meet the requirements of system pressure and flow. The bending radius of the steel pipe should be greater than 3 times the outer diameter of the pipe. 4.3.3.2.7 The hydraulic system should be stable and free of vibration, and should ensure that the cage stops accurately and smoothly at any position of the working stroke. The aerial restart performance should meet the requirements of Article 4.2.11. 4.3.3.2.8 The performance of the brake should meet the requirements of Article 4.3.3.1.4. 4.3.4 The contact length of the output gear and rack of the SC type elevator transmission system and the speed limiter when they are in meshing relationship shall not be less than 40% along the tooth height; shall not be less than 50% along the tooth length; and the backlash on the tooth surface shall not be greater than 0.4mm. 4.3.5 The pinion and rack in the SC type hoist shall be made of steel, and the safety factor shall not be less than 5. 4.4 Safety requirements
4.4.1 For SC type hoists with a rated load greater than 200kg, each cage shall be equipped with a progressive speed limiter, and its braking distance shall be 0.25~1.2m.
4.4.2 For SC type hoists with a rated load not greater than 200kg and a rated lifting speed lower than 24m/min, in addition to the progressive speed limiter, a uniform speed limiter is allowed. 4.4.3 For SS type passenger and cargo lifts, one or more speed limiters shall be installed. Instantaneous speed limiters are only allowed to be used on lifts with a lifting speed lower than 51m/min. First-class and superior hoists with a rated load of more than 400kg shall adopt a progressive speed limiter, and its braking distance shall be 0.06~1m.
4.4.4 For all SC type elevators and SS type elevators for both passenger and cargo, upper and lower limit switches and limit switches should be installed. The former can use the automatic reset type, which cuts off the transmission system circuit when it is actuated, while the latter is not allowed to use the automatic reset type, which cuts off the main power supply when it is actuated. 4.4.5 For SS type cargo elevators, upper and lower limit switches should be installed. For elevators with a rated load of more than 400kg, an upper limit switch should also be installed.
4.4.6 For elevators for both passenger and cargo and cargo elevators with a rated load of more than 400kg, a buffer device should be installed on the base. 4.4.7 The operating speed of the speed limiter should be determined in accordance with the provisions of GB10055. 4.4.8 For SS type cargo elevators with a rated load of more than 400kg, at least one set of rope breaking protection devices should be installed. Elevators of first-class products and above should use damping rope breaking protection devices, and their braking distance should comply with the provisions of Article 4.4.3. The instantaneous type is only allowed to be used on elevators with a lifting speed lower than 51m/min. When the rope-breaking protection device is activated, it is not allowed to cause serious damage to the structure. 4.4.9 In addition to meeting the safety requirements specified in this chapter, the elevator shall also comply with the provisions of GB10055. 4.5 Appearance requirements
4.5.1 Paint quality:
The paint should be uniform, smooth, consistent in color and glossy; a.
The paint surface should be dry, non-sticky, have strong adhesion and be elastic; s
The paint should not be wrinkled, peeled, leaking, flowing, or bubbling. 4.5.2
The weld should be beautiful and smooth, and there should be no defects such as leaking welds, cracks, arc pits, pores, slag inclusions, burn-throughs, and bites. Welding slag and ash should be cleaned up.
4.5.4 Appearance:
The shape of the elevator should be beautiful and the lines should be clear; the surface of the casting should be smooth and flat, without sand holes, sand inclusions, air sand, and air holes. The risers, protrusions and flash burrs should be removed and polished; b.
The burrs on the non-machined surface of the forging should be removed. c
4.6 Product quality classification
According to the performance indicators and quality levels of the products, they are divided into three levels: qualified products, first-class products, and superior products. Products that do not meet the qualified product indicators are unqualified products.
4.6.1 Basic performance classification
4.6.1.1 The basic parameters of qualified elevator products shall comply with the provisions of GB10052. Engineering Construction Standard Full Text Information System
4.6.1.2 Speed error
The relative error between the measured value of the stable lifting speed of the elevator when it is fully loaded and the rated lifting speed value should not be greater than the provisions of Table 2. Table 2 Relative speed error level
Transmission type
Winches
4.6.2 Performance classification
Qualified products
4.6.2.1 The oil leakage classification of the transmission system shall comply with the provisions of Table 3. Table 3 Oil leakage level
Fixed joints
Relative motion joints
Qualified products
Excellent products
Excellent products
Note: ①Fixed joints refer to oil tanks, pipelines and pipe joints, reducer housing separation surfaces and flange joint surfaces, hydraulic cylinder bodies and cylinder heads, hydraulic pump oil outlets, motor oil inlets and outlets, etc.
②Relative motion joints refer to
Parts, etc.
③ Determination of dripping
The input and output shaft ends of the reducer, the piston rods of the hydraulic cylinder and various valves, and other oil-lubricated sliding and rotating fixed joints shall not be wet when touched, and the moving joints shall not be oily or flow marks when visually observed, which means no dripping. During the entire test process, if the area of the leaking oil does not exceed 200cm2 or if no drop of oil is dripped every 15 minutes, it is considered no dripping. Otherwise, it is considered dripping. For qualified products, it is allowed to be tightened 3 times during the entire test process to achieve no dripping.
4.6.2.2 The noise of the elevator under normal operating conditions shall not be greater than that specified in Table 4. For SC-type elevators, when the transmission system is installed in the cage, the transmission system in the cage is measured. When the transmission system is installed on the top of the cage, the noise in the cage and the transmission system on the top are measured respectively. For SS-type elevators, only the hoist noise outside the cage is measured. Table 4 Noise level
Measurement location
Inside the cage
1m away from the transmission system
Qualified products
First-class products
Hydraulic system pollution, assessment of hydraulic oil solid particle pollution level, should not be greater than the provisions of Table 5. Table 5 Hydraulic oil solid particle pollution level
Pollution level
Qualified products
Superior products
Superior products
4.6.2.4 The reliability index of the lift shall be measured by the operating rate and the B-level mean trouble-free working time during the reliability test, and shall comply with the provisions of Table 6.
W.bzsoso.coI Engineering Construction Standard Full Text Information System
Operation rate, %
A-level failure
B-level mean time between failures
time, hbZxz.net
First B-level failure
Time, h
Reliability index
Qualified products
Not allowed
Note: Calculated according to formulas (16) and (17) in GB10056. 4.6.3 Appearance quality grading
First-class products
Not allowed
The appearance quality grading of the paint, welding, casting surface, etc. of the elevator shall be in accordance with the provisions of Table 7. Table 7 Appearance quality grade
Items and contents
Gloss
Whether there is peeling or bubbles
Which is the wrinkle
Weld quality
Whether there is burrs
Whether there are pores, slag inclusions, sand inclusions
Whether there are burrs
5 Test method
Qualified products
No requirements
No obvious peeling or bubbles
No obvious Wrinkled skin
Surface smooth, no obvious defects
No obvious burrs
No obvious pores, slag inclusions, sand inclusions
No obvious burrs
Type test contents include the following:
Stability test of lifts without fixed foundations; performance test;
Structural stress test;
Reliability test;
Industrial test;
Operation test.
5.2 Type test shall be carried out in accordance with the provisions of GB10056. Quality products
Bright luster
No obvious peeling and bubbles
No obvious wrinkles
Smooth surface, no defects
No burrs
Superior products
Not allowed
≥0.85T.
Superior products
Bright luster
No peeling, bubbles
No wrinkles
Smooth surface, no defects
No flash
No pores, slag inclusions, sand inclusions
No burrs, smooth edges
5.3 For elevators with wall support and free height, in reliability tests and performance tests, the test height of the guide frame should be greater than the sum of the second attachment height and the maximum free height. For elevators without wall support, the test height of the guide frame should not be less than 10m. 5.4 When performing reliability tests in accordance with the provisions of Article 5.3, the number of basic working cycles shall not be less than 1.5×104 times. 5.5 Type tests should be carried out on the same elevator, but industrial tests are allowed to be carried out on another elevator. 5.6 The strength calculation and stability calculation data of the elevator and the actual weight of each component, center of gravity position and other parameters should be provided. 5.7 The fault classification in the reliability test of the elevator shall comply with the provisions of Articles 3.3 to 3.5. 5.8 The test and inspection of the safety protection device shall be carried out during the factory inspection, performance test and reliability test. Engineering Construction Standard Full Text Information System
6 Inspection Rules
6.1 All newly designed, converted and significantly improved elevators shall pass technical appraisal before mass production. 6.2 Before mass-produced lifts leave the factory, they shall be inspected in accordance with GB10053 and accompanied by a product certificate. 6.3 Users can accept according to the factory inspection items. 6.4 All kinds of inspections of lifts (such as factory inspection, type inspection, product evaluation inspection, etc.) shall comply with the provisions of GB10053. 7 Marking, packaging, transportation and technical documents
7.1 Marking
Trademarks and corrosion-resistant metal product signs should be placed in obvious parts of the product, and should indicate: 7.1.1
Product name and model,
Main performance parameters of the product;
Product factory number;
Product manufacturing date;
Manufacturer name;
Product quality grade mark.
Product honor plaques that have won provincial, ministerial and national awards must be hung within the approved validity period. 7.2 Packaging
7.2.1 The lift and its parts should be properly packed. 7.2.2 Large components should be marked with the lifting position. 7.2.3
The surface of the packing box should be marked with the box size, box number, gross weight, net weight, upright position and other marks. When supplying the lift to the user, the manufacturer should send the following items out of the factory at random: 7.2.4
Other auxiliary equipment and devices as specified in the order contract; Random spare parts;
Random special tools required for installation, repair and maintenance as specified in the contract. 7.3 Transportation
7.3.1 The transportation of the lift should comply with the regulations of railway, highway, waterway and other transportation. 7.3.2 Labels with the consignee, consignee station, consignee, departure station, and factory year, month and day should be hung on the surface of the box and the bundles. 7.3.3 Electrical components should be protected from moisture during transportation. 7.4 Technical documents that should be provided when the lift leaves the factory; a. Product certificate of conformity,
b. Product instruction manual, as well as drawings and materials required for on-site installation and maintenance (such as electrical schematics, weak and strong current control wiring diagrams, machine base foundation treatment diagrams, wall support embedded parts diagrams, etc.); packing list;
List of random spare parts and random special tools; Atlas of wearing parts.
Additional instructions
This standard is under the jurisdiction of the Beijing Construction Machinery Comprehensive Research Institute of the Ministry of Construction. This standard was drafted by the Changsha Construction Machinery Research Institute, Lianyungang Machinery Factory and the Machinery Department of Beijing No. 1 Construction Company. This standard is entrusted to the Changsha Construction Machinery Comprehensive Research Institute for interpretation. W.bzsoso.cO
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.