GB 26508-2011Garden machinery - Ride-on machines with lawn mowers - Safety requirements and testing (English PDF)

4.1.1 Shell station

4.1.1.1 General requirements Machine tool mounts lawn are applied in addition to the bottom of the housing cover, should be higher than the lowest point of the cutting table at least along the lower shell 3mm, grass discharge port and Other openings, except as described in 4.1.1.4. Wall height station housing not satisfied the above requirements, a portion of the grass discharge opening shall be considered. All parts of the shell stage be 4.14,

4.17 of the test.

4.1.1.2 station housing front portion Through the station housing front portion (see FIG. 1) vertically highest point of the bottom edge and any tangent to the plane of the circular tip, the resulting cutting point and the highest point is connected Line, and the angle between the plane of the circular tip should not exceed 15 ° (see FIG. 1). The point should not be higher than the lowest point of the tool more than 32mm, Lysimachia mouth except. FIG station housing 1, the size of the front portion

4.1.1.3 Lysimachia mouth Grass discharge port should be provided in a suitable location or protected to ensure that grass and dirt will not directly into the operator area (see FIG. 2). whether Horse lawn cutting machine is provided in which the height of the grass tangential extension line of the channel wall should not reach the station housing shown in FIG. 2 operator operation For the region. Tangent circle in the plane of the cutting edge of the tool post should station housing or protective cover, the operator should not reach the operation region shown in FIG.

4.1.1.4 Other openings Allowing the station housing opening is provided near the upper surface of the tool rotation axis. Defines upper surface may be less than the hole diameter of 6mm. Round tip plane Arbitrary point on the hole or opening through which the radiation should reach the operator operates the region shown in FIG. 2. In millimeters FIG operator operates region 2

4.1.1.5 Inspection 4.1.1.5.1

4.1.1.4 referred rays tangent or gently inserted from the outside with a straight rod phi3mm mower to test. 4.1.1.5.2 tests and by visual observation and by measuring the size of 4.14,

4.17 to test 4.1.1.1,4.1.1.2, 4.1.1.3,

4.1.1.4 meets the specified requirements, the grass catcher is not suitable for testing tangent test. Tangent test method is applicable to not set Grass or protective cover covering the opening.

4.1.2 grass collector and an exhaust port shield grass

4.1.2.1 Requirements When the machine needs to mount with lawn grass catcher or shield, it should meet the following requirements.

a) the grass catcher or guard mount to be used as an integral part of the lawn machine factory;

b) in the absence of a grass catcher or shield may not be used lawn machine mount;

c) When the grass collector is made of woven fibers or of a material subject to wear, should 6.1.2i) required to provide the appropriate instructions.

4.1.2.2 Inspection By visual inspection and structural integrity of the test given in

4.14 to verify compliance requirements.

4.1.3.1 Requirements 4.1.3.1.1 In addition to the operator straddled the machine and turn the handle grip machine, the rear of the operator's seat shall be equipped with other machines To support the backrest. 4.1.3.1.2 no greater than the cutting width of 1200mm mount type lawn mower, the backrest should be at least 115mm above the upper seat surface; Seat width of at least 400mm. 4.1.3.1.3 lawn mounts for machine cutting width is more than 1200mm, the seat should be moved. The operator should be able to control manually Return mechanism to restore the seat to the proper operator normal operating position. And a longitudinal dimension adjustment range should meet the operator's seat Of GB/T 6235. 4.1.3.1.4 point all around the horse lawn machine operator's seat fixing member from the standard circular tip to a minimum length of not less than 500mm (See FIG. 3). 1

--- seat index point; 2

--- mowing blade; 4

--- station housing; 5

--- fixing member; 6

--- operator's seat index point of the circle to the length of the nose; 7

--- ground. FIG 3 with the operator's seat index point tip circle length

4.1.3.2 Inspection Visually, and the actual measurements to verify operation of mower meet the requirements. Guard 4.2

4.2.1 power drive component protection

4.2.1.1 Requirements 4.2.1.1.1 During normal operation, in addition to a mowing blade unit and member mounts lawn contact with the ground, the operator is likely to cause damage An outer member drive power (e.g., exposed gears, friction drive member, a belt, a chain, a flywheel, a roller) and pulley, pulleys, sprockets, gears It should have covered the surface of the shield to prevent accidental operator injury. 4.2.1.1.2 If the guard is designed to be openable or removable, the guard member open at risk of exposure, the operator should be able to see the anti- The security guard warning of danger at or near the logo. 4.2.1.1.3 If the guard member is likely to be used as a pedal, the guard member should be able to withstand loads without damage 1200N. 4.2.1.1.4 Unless special provisions in this standard, the size and all the safety distance (guard) opening should meet GB 23821- 2009 Requirements

4.2.4.3 of. 4.2.1.2 4.2.1.1.5 In the test, a probe shown in FIG. 4 can not touch to the member, considered adequate protection. NOTE. horse lawn machine has risk factors if one of the following conditions are met, can be considered to be "fenced site".

a) The risk factors covered by lawn machine mount other components, or on the position, the test member holding the probe shown in FIG. 4 can not detect in various ways touch.

b) the risk factors in the region of or below the chassis, such chassis, fenders, pedals, as shown in FIG test probe holding member in various manners can not detect collision

4.2.2 Thermal Protection

4.2.2.1 hot surface protection requirements At (20 ± 3) °C at ambient temperature for normal operation, the surface temperature exceeds 80 °C, and the exposed portion of the engine is larger than the area of 10cm

2 Exhaust means, the protection device should be prevented from contact therewith, and when the detected predetermined

4.2.2.2 detection cone surface should heat contact.

4.2.2.2 Test 4.2.2.2.1 Test conditions The engine should be run until the surface temperature of the load at maximum speed. Testing should be carried out in the absence of direct sunlight. The group should be Testing the difference between ambient temperature and quasi-ambient temperature to the measured temperature is corrected. The accuracy of the temperature measurement instrument is ± 4 °C. 4.2.2.2.2 Test method 4.2.2.2.2.1 When the hot surface area determined by the control member and the nearest distance exceeds 100mm, using FIG. 5a) shown in FIG. Cone A. When using the cone A, points towards the horizontal cone, the angle between the cone axis and the horizontal plane between 0 ° ~ 180 °, the hot zone moves towards the cone body. Conical tip upward direction detection is not performed. Determining whether the cone in contact with the hot surfaces in the moving cone. 4.2.2.2.2.2 hot surface area is determined using FIG. 5b) when the control member and the nearest distance is less than 100mm shown Cone B. B probe cone may be moved in any direction. Determining whether the cone in contact with the hot surfaces in the process of moving the cone. In millimeters

4.2.5 Exhaust Protection

4.2.5.1 Requirements Engine exhaust area not facing the operator. Horse lawn machine is equipped with the shield, not directed towards the exhaust or intake shield The vent hood.

4.2.5.2 Inspection Visually detecting the position and direction of the exhaust port.

4.2.6 Pressure Components Protection

4.2.6.1 Requirements When the hydraulic hose, the hydraulic pressure line and the other member to be fixed or fastened, to prevent hose rupture, the liquid ejecting operation in the operating position of the personnel.

4.2.6.2 Inspection Visual inspection cover, fixed state.

4.2.7 Shield or shield installation requirements

4.2.7.1 Requirements All guard or shield, and in addition to comply with the requirements 4.1.1.3

4.1.2 outside, after its installation, workers need not removable or With before being removed. The following exemptions.

a) will open or removed after receiving the operation stop of the moving part of the protective shield having an interlocking feature;

b) a grass discharge passage has a shield automatic closing function.

4.2.7.2 Inspection Visually inspect all guards or shields state, to determine whether to meet the requirements.

4.3 steering mechanism The engine switch 4.3.1

4.3.1.1 Requirements Mount mower type switch should be configured to start or stop the engine, to prevent unauthorized starting horse lawn machine. The device only The operator intends to manual operation in order to start the engine.

4.3.1.2 Inspection By starting or stopping the engine, it is determined whether the engine switch requirements.

4.3.2 engine speed control knob

4.3.2.1 Requirements Engine speed control knob forward and/or upward generally should increase the engine speed, back and/or down when the engine is reduced Speed until it stops.

4.3.2.2 Inspection Engine speed control by operating the handle, it is determined whether or not meet the requirements.

4.3.3.1 Requirements Footboard should be equipped with non-slip surface or other foot slip means to prevent the operator from the footboard.

4.3.3.2 Inspection By visual inspection to determine whether compliance with the requirements.

4.3.4 delay mechanism

4.3 steering mechanism

4.3.5 Tool clutch device

4.3.5.1 Requirements Clutch means shall be provided between the engine and tool.

4.3.5.2 Inspection By operating the lawn mounts machine, it determines whether or not meet the requirements.

4.3.6 when the operator leaves the control mechanism of the normal operating position

4.3.6.1 Requirements 4.3.6.1.1 should be equipped with suitable means, in the case of the engine operation, when the operator leaves the normal operating position of the tool can automatically stop Running or while the engine is stopped and the tool. If the operator before the tool stops back to the operating position, the tool can automatically resume operation. After the tool stops, and then start cutting tools need to restart the intentional manipulation of institutions, agencies should not be set to restart the jog-controlled institutions. 4.3.6.1.2 When the operator leaves the normal operating position, there should be a separate device may be automatically stopped or traveling drive unit mounts lawn power. 4.3.6.1.2 4.3.6.1.3 4.3.6.1.1 and apparatus described herein should be able to operate effectively under all normal operating conditions, the operator Changes in body weight and posture adjustments to suit shall be able to control the horse lawn machine in the case of work on the slopes, not unexpected Tool stall or turn off the engine. twenty one

4.3.6.2 Inspection 4.3.6.2.1 mount the machine lawn is placed on a 15 ° slope ...