1、American National Standardfor Outdoor Power Equipment Internal Combustion EnginePoweredHand-Held Grass Trimmersand Brushcutters Safety and Environmental RequirementsANSI/OPEI B175.3-2013ANSI/OPEI B175.3-2013Copyright American National Standards Institute Provided by IHS under license with ANSI Not f
2、or ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/OPEIB175.3-2013Revision and redesignation ofAN
3、SI B175.3-2003American National Standardfor Outdoor Power Equipment Internal Combustion EnginePoweredHand-Held Grass Trimmersand Brushcutters Safety and Environmental RequirementsSponsorOutdoor Power Equipment InstituteApproved August 21, 2013Published October 22, 2013American National Standards Ins
4、titute, Inc.Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Approval of an American National Standard requires review by ANSI that therequirements for due process, consensus, an
5、d other criteria for approval havebeen met by the standards developer.Consensus is established when, in the judgement of the ANSI Board ofStandards Review, substantial agreement has been reached by directly andmaterially affected interests. Substantial agreement means much more thana simple majority
6、, but not necessarily unanimity. Consensus requires that allviews and objections be considered, and that a concerted effort be madetowards their resolution.The use of American National Standards is completely voluntary; theirexistence does not in any respect preclude anyone, whether he has approvedt
7、he standards or not, from manufacturing, marketing, purchasing, or usingproducts, processes, or procedures not conforming to the standards.The American National Standards Institute does not develop standards andwill in no circumstances give an interpretation of any American NationalStandard. Moreove
8、r, no person shall have the right or authority to issue aninterpretation of an American National Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor whose name appears on the titlepage of this standard.CAUTIO
9、N NOTICE: This American National Standard may be revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, orwithdraw this standard. Purchasers of American National Standards mayreceive current informati
10、on on all standards by calling or writing the AmericanNational Standards Institute.American National StandardPublished byAmerican National Standards Institute, Inc.25 West 43rd Street, New York, NY 10036Copyright 2013 by Outdoor Power Equipment Institute, Inc.All rights reserved.No part of this publ
11、ication may be reproduced in anyform, in an electronic retrieval system or otherwise,without prior written permission of the publisher.Printed in the United States of AmericaCopyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or netwo
12、rking permitted without license from IHS-,-,-iContentsPageForeword .iii1 Scope and Purpose 12 Normative References 23 Definitions. 34 Cutting Attachment Shield 65 Clutches 76 Engine Stopping Device . 87 Cutting Attachment. 88 Product Integrity . 109 Sound Levels 1010 Vibration . 1011 Hot Surfaces. 1
13、112 Exhaust Gases . 1213 Handle(s), Barrier(s), and Harness(es), Distances, and Balance. 1214 Throttle Control / Throttle Control Latch . 1415 Fuel Tanks and Oil Tanks. 1516 Labeling Requirements. 1617 Operators Manual(s) Instructions 17AnnexesA Rationale 32B Sound Test Procedures for Bystanders (9.
14、2.2) 33C Procedures for the Evaluation of Environmental and Fuel Compatibilityof Fuel Feed Lines (15.4) and Fuel Tanks (15.5) 38D Structural Integrity of Fuel Tanks (15.7) . 40E Fuel Supply Line Strength and Accessibility (15.6) 41Figures1 Operating/Cutting Position 202(a) Brushcutter with Nomenclat
15、ure 212(b) Trimmer with Nomenclature . 223 Brushcutter Shield Dimensions 234 Grass Trimmer Shield Dimensions. 245 Barrier Configuration Examples and Distance to Cutting Attachment 255(a) Distance to Cutting Attachment for Brushcutter with Restrictive Harness265(b) Distance to Cutting Attachment for
16、Brushcutter with Restrictive Harness27Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-iiPage6 Impact Test. 287 Microphone Location - Bystander. 298 Cutting Shield Integrity Test
17、 . 309 Hot Surface Probe 3110 Test Probe for Fuel Line Accessibility Testing, Chamfered Side Used for Probing 31Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-iiiForeword (This
18、 foreword is not part of American National Standard ANSI/OPEI B175.3-2013.)This standard is the third revision of American National Standard for Outdoor PowerEquipment - Internal Combustion Engine-Powered Hand-Held Grass Trimmers andBrushcutters - Safety and Environmental Requirements, ANSI/OPEI B17
19、5.3. The firstedition of this standard was developed under the auspice of the Portable PowerEquipment Manufacturers Association (PPEMA) and published in 1997. The secondand third editions of this standard were developed under the auspice of the OutdoorPower Equipment Institute (OPEI).This standard c
20、ontains five annexes. Annex A is informative and is not consideredpart of this standard. Annexes B through E are normative and are considered part ofthis standard.A summary of the principal changes included in this revision is as follows:- Scope updated to address how to handle certain cutting attac
21、hments- Sound level testing updated to reference ISO 22868 and added annex B forbystander sound.- Vibration level testing updated to reference ISO 22867.- Various other clerical, technical and clarification changes made throughout thestandard.- Added evaluations and requirements for fuel lines and t
22、anks (see annexes Cthrough E)Consensus for this standard was achieved by use of the Canvass Method.Suggestions for improvements to this standard are welcome. They should be sent tothe Outdoor Power Equipment Institute, 341 South Patrick Street, Alexandria, VA22314.The following organizations recogni
23、zed as having an interest in the standardization ofsafety requirements for trimmers and brushcutters were contacted prior to the ap-proval of this revised standard. Inclusion in the list does not necessarily imply that theorganization concurred with the submittal of the proposal to ANSI.Brett E. Coh
24、en, ChairmanUsers:Ken AndersenShawn FitzgeraldVincent MorabitMike WattsGeneral Interest:Underwriters Laboratory (Nicolette Allen)U.S. Consumer Product Safety Commission (John Murphy)USDA Forest Service/San Dimas Technology 2 indicate to the operator the plane of operation of the cutting attachment;
25、3 provide the operator with a visual means of determining the cutting edge; 4 reduce the likelihood of operator contact with the cutting attachment; 5 reduce the amount of cutting debris thrown back toward the operator and; 6 elevate the cutting device off the ground during starting. These statement
26、s assume that the product is used as intended by the manufacturer. These purposes should be accomplished while maintaining the utility of the product and without increasing the likelihood of removal or modification of the shield. 4.1 Requirements 4.1.1 All units shall be designed to accept a cutting
27、 attachment shield. The shield shall be included with the unit at the time of purchase. Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/OPEI B175.3- 2013 7 4.1.2 When insta
28、lled in accordance with manufacturers recommendations, a shield shall remain in the originally installed position when evaluated in accordance with 4.2. 4.1.3 A shield and its mounting shall not crack or break when evaluated in accordance with 4.2. 4.1.4 A brushcutter shield shall meet the dimension
29、al requirements according to ISO 7918:1995. (See figure 3.) 4.1.5 A grass trimmer shield shall meet the dimensional according to ISO 7918:1995. (See figure 4.) 4.2 Cutting Attachment Shield Test Procedure 4.2.1 Cutting Attachment Shield Integrity Test a) The shield shall be impacted with a 2.5 kg (5
30、.5 lb) pendulum from a height of 1000 mm (40 in). The pendulum arm mass shall be as light as possible. (See figure 8.) b) The unit shall be mounted on a swivel bracket as close to the power head as possible. (See figure 8.) c) For metallic shields and/or mounting, tests shall be conducted at tempera
31、tures 20C 5.6C (68F 10F). For nonmetallic shields and/or mounting, tests shall be conducted at temperatures 40C 2C (104F 4F) and, the shields shall be tested after the unit has been conditioned at a temperature of -25C 3C (-13F 5F) for four (4) hours. This conditioning at -25C 3C (-13F 5F) shall not
32、 apply to grass trimmers. d) Twenty-five impacts shall be conducted at the rear edge and twenty-five impacts at the side edge of the same shield. 5 Clutches 5.1 Power Disengagement All blade capable units shall have a clutch that disengages power to the cutting attachment when the engine speed is re
33、duced to the manufacturers recommended idling speed. Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/OPEI B175.3-2013 8 6 Engine Stopping Device 6.1 Applicability and Locat
34、ion All units shall be equipped with an engine stopping device that brings the engine to a complete stop. For blade-capable units only, the control for this device shall be so positioned that it can be operated while the machine is being held with both hands, and its operation shall not depend on su
35、stained manual effort. The engine-stopping device for non-blade-capable units may depend on sustained manual effort. 6.2 Identification The purpose and method of operation of the device shall be clearly and durably marked. The color of the control shall contrast to the background. 7 Cutting Attachme
36、nt 7.1 Retention When acted upon by the driving torque of the unit, the fastener system for flexible nonmetallic cutting attachments shall be tightened by the driving torque. For all other cutting attachments, retention shall include a fastener system providing tension and a second retention method
37、not acted upon by rotational forces. 7.2 Integrity All cutting attachments and related fasteners, excluding flexible cutting line, shall not break, crack, or separate because of rotational acceleration/deceleration, vibration or impact when fastened in accordance with manufacturers instructions and
38、when tested in accordance with the Impact Test outlined in 7.2.1, followed by the Spin Test outlined in 7.2.2, using the same cutting attachment without any modifications. NOTES 1) Damage or normal abrasion to flexible nonmetallic line or to any line advancement mechanism that does not separate from
39、 the unit as a result of these tests is acceptable. 2) Abrasion similar to normal wear on nonmetallic cutting elements is acceptable. 3) Damage to tooth/teeth at the point of contact may be expected and is not a cause for a test failure. Copyright American National Standards Institute Provided by IH
40、S under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/OPEI B175.3- 2013 9 7.2.1 Impact Test The cutting attachment shall be mounted to a test unit in accordance with the manufacturers instructions and impacted once pursuant to the methods d
41、escribed in 7.2.1.1 - 7.2.1.4. Cutting attachments that can be mounted on more than one equipment model need only be tested on the unit with greatest mass and on the unit with the highest maximum power speed. The equipment unit with the greatest mass and the unit with the highest maximum power speed
42、 may be the same, in which case the impact test on a multi-unit cutting attachment need only be conducted once. 7.2.1.1 The unit shall be suspended freely in an operating position. (See figure 6.) 7.2.1.2 A vertical positioned fixed mild cold rolled steel rod (for example, SAE 1010-1040), 24-27 mm (
43、0.95-1.05 in) in diameter shall be horizontally impacted by the cutting attachment at a minimum approach speed of 1.0 m/s (40 in/s). (See figure 6.) 7.2.1.3 The test is to be conducted at 1.33 times the maximum power speed or at the speed obtained with wide open throttle (for grass trimmers determin
44、ed with the line at the manufacturers maximum recommended length), whichever speed is less. For the test, the cutting line shall be set as described below: For flexible nonmetallic line cutting attachments, the line shall be set at a length that is 50.8 mm 12.7 mm (2 in 0.5 in) from where the line e
45、xits the cutting attachment. For flexible nonmetallic line cutting attachments, any supply reels shall be filled to the manufacturers recommended maximum capacity. 7.2.1.4 The engine shall be switched off after the impact. 7.2.2 Spin Test After the Impact Test of 7.2.1, the line length shall be set
46、at 25.4 mm 12.7 mm (1 in 0.5 in) extending from the cutting attachment and no other modifications shall be made to the cutting attachment. The cutting attachment shall then be spun for 5 minutes at 1.33 times the speed used in 7.2.1.3 7.2.2.1 The attachment assembly shall be fastened to the test app
47、aratus in the same manner as it would be on the unit. NOTE Single-piece solid steel blades are exempt from the spin test. Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/OP
48、EI B175.3-2013 10 8 Product Integrity 8.1 The shaft, engine, and related fasteners shall not break, crack, or separate because of rotational acceleration/deceleration, vibration, or impact when the unit is tested according to 7.2.1. 8.2 Each equipment model shall be tested with both the lightest and the heaviest cutting attachments that the manufacturer makes available for that unit. The cutting attachments shall be fastened in accordance with the manufacturers instructions prior to testing. 8.3 Equipment units subjected to impact
