This standard sets restrictions on walking tractors in terms of performance and intended use. The safety requirements specified are applicable to the hazards generated at various stages of the mechanical life cycle as specified in 3.11 of GB/T 15706.1-1995. This standard applies to agricultural walking tractors. GB 18447.2-2001 Safety requirements for walking tractors GB18447.2-2001 Standard download decompression password: www.bzxz.net

GB 18447.2—2001
All technical contents of this standard are mandatory. This standard specifies the safety requirements for walk-behind tractors and serves as the basis for tractor safety inspection. This standard and GB18447.1—2001 Safety requirements for agricultural wheeled and crawler tractors form a series, with this standard being the second part and Safety requirements for agricultural wheeled and crawler tractors being the first part.
This standard is proposed by the National Technical Committee on Tractor Standardization and is under the jurisdiction of this standard. The drafting units are: Yangyang Tractor Research Institute, Changzhou Dongfeng Agricultural Machinery Company, Nanning Walking Tractor Factory, Agricultural Machinery Adjustment Station of the Ministry of Agriculture, Yancheng Tractor Factory, etc.
The main drafters of this standard are: Shang Xiangsheng, Bai Yongping, Guo Wanhua, Chen Lanfang, Wang Shiping 1 Scopebzxz.net
National Standard of the People's Republic of China
Walking tractors
Safety requirements
Safety requlrements for walking tractors GB 1B447.2—2001
This standard proposes restrictions on agricultural walking tractors in terms of physical properties and intended use. The specified safety requirements are applicable to the hazards generated at various stages of the machine life cycle specified in 3.11 of GB/T15706.1-1995. This standard applies to agricultural hand-held tractors (hereinafter referred to as tractors). 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid: All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 4269.1--1984#
General symbols for operator control symbols and other symbols for agricultural and forestry tractors and machinery, lawn and gardening power machinery (eqvIS03767-1:1982)
GB/T 4269.2-1984 Operator control symbols and other symbols for agricultural and forestry tractors and machinery, lawn and gardening power machinery Symbols for agricultural tractors and machinery (egvIS03767-1:1982)GB/T6229-1995 Test methods for hand tractorsGB6376-1995 Noise limits for tractors
GB9486-1988 Diesel engine steady-state exhaust smoke and its determination methodGB 10395.1-1989 Safety technical requirements for forestry tractors and machinery Part 1: General (egIS0 4254-1:1985)GB10396—1999General rules for safety signs and hazard pictograms for agricultural and forestry tractors and machinery, turf and horticultural power machinery (eqv 150 11684:1995)
GB/T 15706.11995General rules for basic concepts and design of machinery safety Part 1: Basic terms, methodology (eqv IS0/TR 12100-1:1992)
JB/T 7865-—1995
5Requirements for the compilation of instruction manuals and technical documents for agricultural and forestry tractors and implements (eqvISO3600:1981) 3 Hazard list
The hazards that may arise during the travel, field operation and maintenance of the tractor are shown in Table 1. Table 1 Hazard list
Exposed rotating parts without protective devices
Machine failure
Excessive exhaust smoke
Burns caused by contact with heat sources
Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on 2001-D8-29-YKANiiKAca-
Excessive noise
Brake failure
Insufficient lighting signals
Hazards caused by incorrect operation
200T-12-D1 Implementation
4 Safety requirements and/or implementation and judgment
GB18447.2—2001
4.1 Safety protection
The following exposed rotating parts should be equipped with protective devices, which should be firmly fixed, pressure-resistant, and without sharp corners and sharp edges. Its strength shall comply with the provisions of GB10395.1. The specific requirements are as follows: 4.1.1 The starting claw shall be protected, and the shaft end shall not protrude beyond the protection. 4.1.2 The flywheel and pulley (including the flywheel pulley) shall have protective devices. If the flywheel has no protective device, a safety sign shall be set near the flywheel, and the requirements for the safety sign shall comply with the provisions of GB10396. 4.1.3 The pulley and belt protective devices shall at least cover the engagement point, and the height of the edge of the protective device from the engagement point shall be greater than 12cm. 4.1.4 The exhaust smoke value of the tractor shall not exceed FSN5.2 and shall be tested in accordance with the provisions of GB/T9486. 4.1.5 The exhaust pipe of the tractor shall be equipped with a heat insulation protective device. 4.1.6 The noise limit values ​​of the tractor environment and the driver's operating position shall comply with the provisions of GB6376 and be tested in accordance with the provisions of GB/T6229. 4.2 Braking performance
On a 20% dry hard slope, the tractor should be able to stop reliably in the uphill and downhill directions with the parking brake. And it should be tested according to the provisions of GB/T6229.
4.3 Lighting and signal equipment
The tractor should have a headlight.
4.4 Safe operation
When the operating direction of the operating device is not obvious, it should be marked with operating symbols or words on or near the operating device. The operating symbols should comply with the provisions of GB/T4269.1 and GB/T4269.2. 5 Usage
5.1The tractor should at least be equipped with a trademark or factory logo on a visible part of the outer surface of the body, and a logo that can identify the model should be installed on a visible part of the outer body.
5.2 The tractor must be equipped with a product label that can be permanently maintained. 5.3 At least the following dangerous parts must be equipped with safety signs, and the safety signs should comply with the provisions of GB10396. a) Safety warning signs at the gear position:
b) Safety signs for parking and parking brakes and lightning signs for single-machine speed limit and downhill steering operation instructions are added to the obvious places on the machine body, c) Warning signs for the water filling port of the evaporative diesel engine. 5.4 Each tractor should provide the user with an instruction manual and a Wineng manual, and its safety operation requirements should comply with the provisions of JB/T7865.
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