1 Scope
This document specifies the classification, requirements, test methods, inspection rules, marking, packaging, transport and storage of self-propelled motor graders. This document applies to self-propelled motor graders (hereinafter referred to as motor graders).
2 Normative references
The contents of the following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the reference document, only the date of the corresponding version applies to this document; do not note the date of the reference document, its latest version (including all the revision of the list) applies to this document.
GB/T 3766 General rules and safety requirements for hydraulic drive systems and their components
GB/T 7920.9 Terminology and commercial specifications for earthmoving machinery graders
GB/T 8419 Laboratory evaluation of driver's seat vibration of earth moving machinery
GB/T 8506 Test methods for motor graders
GB/T 14039-2002 Hydraulic transmission fluid solid particle contamination class code
GB 16710 Noise limits for earth-moving machinery
GB/T 16937 Test methods and performance guidelines for driver's field of vision of earth-moving machinery
GB/T 17300 Access devices for earth-moving machinery
GB/T 18826 Industrial use of 1,1,1,2-tetrafluoroethane (HFC-134a)
GB/T 19933.2 Earth-moving machinery driver's cab environment Part 1: Test methods for air filters
GB/T 19933.4 Earth-moving machinery driver's cab environment part 4: Heating, ventilation and air conditioning (HAVC) test methods and performance
GB/T 19933.5 Earth-moving machinery driver's cab environment Part 5: Test methods for windscreen defrosting systems
3 Terms and definitions
The terms and definitions defined in GB/T 7920.9 and GB/T 25602 apply to this document.
4 Classification
4.1 Type
The grader is divided into integral and dumpling type according to the frame form, mechanical transmission, hydraulic transmission and hydraulic transmission according to the transmission mode, rear axle drive and all-wheel drive according to the drive mode.
4.2 Model
The product model of the grader shall conform to the provisions of JB/T 9725, or be determined by the manufacturer.
4.3 Main parameters
The rated power (in horsepower) of the motor grader is used as the main parameter.
5 Requirements
5.1 General requirements
5.1.1 The grader shall be able to operate normally under ambient temperatures of 25 °C to 40 °C, altitudes of not more than 2 000 m, and I to III soil conditions.
5.1.2 The assembly quality of the motor grader shall conform to the provisions of JB/T 5945. 5.1.3 The painting quality of the motor grader shall conform to the provisions of JB/T 5946.
5.1.4 The driver's manual of the motor grader shall conform to the provisions of GB/T 25622.
5.1.5 The capacity of the fuel tank for the motor grader shall ensure that its continuous operating time under normal operating conditions is not less than 10 h.
5.2 Performance requirements
5.2.1 The speed of movement of the grader blade shall be in accordance with the provisions of Table 1.
5.3 Safety requirements
5.3.1 The access device of the grader shall comply with the provisions of GB/T 17300.
5.3.2 The braking system of the grader shall comply with the provisions of GB/T 21152.
5.3.3 The driver's field of vision shall conform to the provisions of GB/T 16937. The motor grader may be equipped with corresponding auxiliary equipment (e.g. rear-view mirror, monitoring device, etc.) to supplement the direct field of vision. The field of vision of the rear-view mirror and monitoring device shall comply with the provisions of GB/T 25685.1 and GB/T 25685.2.
5.3.4 The grader should be affixed with a safety label, which should comply with the provisions of GB 20178.
5.3.5 Your grader shall comply with the applicable mandatory provisions in GB 25684.1 and GB 25684.8.
5.3.6 The grader should comply with the provisions of the applicable recommended provisions in GB 25684.1 and GB 25684.8.
5.4 Environmental protection, energy saving and personal health requirements
5.4.1 The requirements and test methods for exhaust pollutants for diesel engines selected for motor graders should comply with the provisions of GB 20891.
5.4.2 If the motor grader is equipped with an air conditioner, the refrigerant of the air conditioner shall comply with the provisions of GB/T 18826.
5.4.3 The fuel consumption rate of the diesel engine selected for the motor grader should be in accordance with the provisions of GB/T 28239.
5.4.4 The vibration damping capacity of the driver's seat for motor graders should be in accordance with the provisions of GB/T 8419.
5.4.5 The sound power level of the noise emitted from the outside of your motor grader and the sound pressure level of the noise emitted from the driver's position should be in accordance with the provisions of GB 16710.
5.4.6 If the motor grader is equipped with a fully enclosed driver's cab, the driver's cab environment shall comply with the provisions of GB/T 19933.2, GB/T 19933.4 and GB/T 19933.5.
6 Test methods
Chapter 5 does not specify the test method of the items in accordance with the provisions of GB/T 8506.
7 Inspection rules
7.1 Factory inspection
7.1.1 The grader shall be inspected by the manufacturer's quality inspection department before leaving the factory.
7.1.2 The factory inspection of the motor grader should include the following items:
Correctness of assembly;
Appearance quality;
The state of the oil such as fuel, hydraulic oil and coolant;
Running and parking brakes;
steering flexibility;
Movement of working devices;
Audible warning device (horn) for driver position control
Sealing of the entire machine;
abnormal changes in engine water temperature and torque converter oil temperature;
Movement of handles and pedals;
Instrumentation, lighting, signalling and marking lights;
Safety labels.
7.1.3 factory inspection should be used for the full number of tests, each test is qualified is judged to pass; if a test failed, it is judged to be unqualified.
7.2 Type test
7.2.1 one of the following circumstances, the type test should be carried out:
New trial products;
Transferred to the production of products;
Product structure, materials, processes have changed significantly, affecting the performance of the product.
7.2.2 type test items for Chapter 5 of the project.
7.2.3 type test prototype for the new trial product, or in the month under inspection (quarter) of the manufacturing batch of 1 ~ 2 units of products randomly selected. Specific sampling plan and rules for determination by the manufacturer to determine, or by the two sides to determine the supply and demand negotiations.
8 Marking, packaging, transport and storage
8.1 Marking
8.1.1 The product label and trademark shall be firmly fixed in the obvious position of the grader.
8.1.2 The product label shall include at least the following elements:
Name of manufacturer;
Product name and model number
Basic product parameters (e.g. "working mass" and "rated power")
The factory number or product identification code (PIN), which should be in accordance with GB/T 25606;
Year of manufacture.
8.2 Random documentation
8.3 Packaging
8.3.1 The packaging of wearing parts and spare parts of the motor grader shall conform to the provisions of JB/T 5947 and ensure that they are not damaged under normal conditions of transport and storage.
8.3.2 The packaging shall be packed according to the packing pattern when decomposed and transported.
8.4 Transport
8.4.1 The transport of the motor grader shall be in accordance with the relevant regulations of the transport department. 8.4.2 Before shipping the motor grader, the following preparations shall be made:
Disconnect the battery from the body; lock the dumpling frame;
8.5 Storage
The protection and storage of the motor grader should be in accordance with the provisions of GB/T 22358.
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transport and storage
