1、 _ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising ther
2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this
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4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J2752_201509 SURFACE VEHICLE RECOMMENDED PRACTICE J2752 SEP2015 Issued 2010-06 R
5、eaffirmed 2015-09 Superseding J2752 JUN2010 Personnel Protection - Compact Tool Carriers RATIONALE J2752 has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE This SAE Recommended Practice applies to compact tool carriers sometimes called, but not limited to mini-loaders, mini
6、 skid-steer loaders or compact utility loaders. Machines having a seated-operator position are excluded from this standard. However, certain attachments for a compact tool carrier may provide a seated-operator position for the operation of the attachment. 1.1 Purpose This SAE Recommended Practice is
7、 intended to provide personnel protection guidelines for compact tool carriers. This document is intended as a guide towards standard practice, but may be subject to frequent change to keep pace with experience and technical advances. This document provides performance criteria for newly designed co
8、mpact tool carriers. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 ISO Publications Available from American National Standards Ins
9、titute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ISO 2867 Earth-moving machinery Access systems ISO 3411 Earth-moving machinery Human physical dimensions of operators and minimum operator space envelope ISO 3450 Earth-moving machinery Braking systems of rubber-t
10、yred machines Systems and performance requirements and test procedures SAE INTERNATIONAL J2752 SEP2015 Page 2 of 11 ISO 3457 Earth-moving machinery Guards Definitions and requirements ISO 6405-1 Earth-moving machinery Symbols for operator controls and other displays Part 1: Common symbols ISO 6405-2
11、 Earth-moving machinery Symbols for operator controls and other displays Part 2: Specific symbols for machines, equipment and accessories ISO 6682 Earth-moving machinery Zones of comfort and reach for controls ISO 6750 Earth-moving machinery Operators manual Content and format ISO 9244 Earth-moving
12、machinery Safety signs and hazard pictorials General principles ISO 10265 Earth-moving machinery Crawler machines Performance requirements and test procedures for braking systems ISO 10533 Earth-moving machinery Lift-arm support devices ISO 10968 Earth-moving machinery Operators controls ISO 12508 E
13、arth-moving machinery Operator station and maintenance areas Bluntness of edges ISO 15817 Earth-moving machinery Safety requirements for remote operator control ISO 17063 Earth-moving machinery Braking systems of pedestrian-controlled machines Performance requirements and test procedures 2.2 Related
14、 Publications The following publications are provided for information purposes only and are not a required part of this SAE Technical Report. ISO 6165 Earth-moving machinery Basic types Identification and terms and definitions ISO 14397-1 Earth-moving machinery Loaders and backhoe loaders Part 1: Ca
15、lculation of rated operating capacity and test method for verifying calculated tipping load 3. DEFINITIONS 3.1 COMPACT TOOL CARRIER A self-propelled crawler or wheeled machine having an operating mass of less than 1500 kg with a rigid frame, having either a walk-behind operator position or standing
16、operator platform at the rear of the machine and having either front-mounted interchangeable equipment or lift arms with an attachment bracket capable of coupling to interchangeable, front-mounted attachments. 3.2 EQUIPMENT A set of components mounted onto the base machine that allows an attachment
17、to perform the primary design function of the machine, e.g., lift arms. 3.2.1 Interchangeable Equipment Equipment that can be added to and removed from the base machine to change the primary design function of the machine. SAE INTERNATIONAL J2752 SEP2015 Page 3 of 11 3.3 ATTACHMENT An assembly of co
18、mponents that can be mounted onto the base machine or equipment for a specific use. 3.3.1 Load Carrying Attachment An attachment that during its normal use would contain or support a payload, e.g., bucket, pallet fork, sweeper bucket, grapple fork, etc. 3.3.2 Non-load Carrying Attachment An attachme
19、nt that during its normal use would not contain or support a payload, e.g., auger, blade, trencher, mower, breaker, tiller, snow blower, soil conditioner, etc. 3.4 EQUIPMENT AND/OR ATTACHMENT BRACKET A device to facilitate quick interchange of equipment or attachments. 3.5 GUARD A barrier that is in
20、tended to prevent inadvertent contact with a potential hazard during normal operation and servicing. 3.5.1 Guarding by Location A means of preventing inadvertent contact with a hazardous component or with the operators control(s) by having the component or control(s) outside the reach of a large ope
21、rator, as described in ISO 3411, when in the operating position as described by the manufacturer. 3.6 NORMAL OPERATION The reasonable use of the compact tool carrier by a trained person using attachments as approved by the compact tool carrier manufacturer. 3.7 MAINTENANCE A service operation perfor
22、med in accordance with the operators manual, service manual or machine sign. 3.8 OPERATOR POSITION The location of the operator designated by the compact tool carrier manufacturer. 3.9 OPERATOR PLATFORM The surface provided for a standing, ride-on operator to operate the compact tool carrier. 3.10 G
23、ROUND-SUPPORTED OPERATOR PLATFORM An operator platform with a trail wheel(s) or skid surface that pivots about a horizontal axis to allow the trail wheel(s) or skid surface to follow the contour of the ground. 3.11 MAXIMUM REACH The position of the equipment and attachment that results in the maximu
24、m horizontal distance between the load center of gravity and the front tipping line of the compact tool carrier SAE INTERNATIONAL J2752 SEP2015 Page 4 of 11 3.12 TIPPING LINE The line about which the loader tips. 3.13 OPERATING MASS The mass of the base machine, with equipment and empty attachment a
25、s specified by the manufacturer, and with the operator (75 kg), full fuel tank and all fluid systems (i.e., hydraulic oil, transmission oil, engine oil, engine coolant) at the level specified by the manufacturer NOTE: The mass of the operator (75 kg) is only included for ride-on machines. 4. OPERATI
26、ON INSTRUCTIONS 4.1 General operator instructions, including those listed in 4.2 through 4.6, and maintenance procedures shall be provided by manuals and/or machine signs attached to the compact tool carrier. A durable, weather-resistant storage location for the manual shall be provided on the equip
27、ment. ISO 6750 should be used as a guideline in preparing manuals. 4.2 Instructions shall be included for general operation, traveling and changing of equipment and/or attachments. 4.2.1 Instructions shall be included for changing, storing and operating the interchangeable equipment and/or attachmen
28、ts. These instructions can be provided in the compact tool carrier operation instructions or in a separate manual. 4.2.2 Instructions shall be included for the effect of changes of motion and of ground conditions such as slopes. 4.2.3 Instructions shall be included for carrying the load or attachmen
29、t including restrictions related to terrain and speed of travel. 4.2.4 Instructions shall be included for lifting the load. 4.2.5 Instructions shall be included for the proper use and maintenance, if necessary, of the ride-on operator platform, if equipped. 4.3 Instructions shall be provided for loa
30、ding, including the use of loading ramps, and tying down the compact tool carrier for transporting. 4.4 Instructions shall be provided for lifting the compact tool carrier as a complete unit. 4.5 Instructions shall be provided for proper use of the interchangeable equipment locking system and/or the
31、 attachment bracket locking system (coupler), if required. 4.6 Instructions shall be provided prohibiting the use of the compact tool carrier for lifting persons with any equipment or attachment (e.g., work platform). 5. OPERATION 5.1 The operators controls shall be in accordance with ISO 10968. 5.2
32、 Operators controls shall be identified. Symbols should be in accordance with ISO 6405, Part 1 and Part 2. 5.3 The compact tool carrier shall be fitted with a means to prevent unauthorized operation of the machine (e.g., a key switch or a key code). SAE INTERNATIONAL J2752 SEP2015 Page 5 of 11 5.4 I
33、t shall be possible to lower the equipment and/or attachment with the engine stopped. The means to lower the equipment and/or attachment can be located away from the primary operating controls but shall not require the operator to reach under the raised equipment or attachment to operate, and shall
34、be described in the operating instructions. 5.5 Operators control(s) for travel of the compact tool carrier shall return to neutral upon release causing the travel of the machine to stop. 5.6 Operators control(s) for travel of the compact tool carrier shall be designed to allow the operator to contr
35、ol with one hand while leaving the other hand available for support. 5.7 Machine and equipment or attachment movement from the holding position, other than by actuation of the controls by the operator, due to drift or creep (e.g., by internal leakage through the hydraulic components) or when the pow
36、er supply stops, shall be limited to the extent that it cannot create a risk to exposed persons. 5.8 The travel speed shall be in accordance with the following as determined by the configuration of the compact tool carrier: 5.8.1 The travel speed of a compact tool carrier with a walk-behind operator
37、 position shall not exceed 6 km/h in the forward direction and 4 km/h in the reverse direction and shall be controllable to align with the speed of the operator on foot. 5.8.2 The maximum travel speed of a compact tool carrier with a ride-on platform is to be based on factors such as machine configu
38、ration, operator station position, machine weight distribution, control design and normal operation as specified by the manufacturer. 5.9 A means shall be provided to prevent unintended movement of the machine, equipment or attachment while starting the compact tool carrier. 5.10 A means to prevent
39、unintended movement of the equipment and/or attachment with the engine off shall be provided. 5.11 Compact tool carriers intended to operate powered attachments shall comply with 5.11.1, 5.11.2, and 5.11.3. 5.11.1 For powered attachment operation, a means shall be provided to automatically remove po
40、wer to the attachment when the operator leaves the compact tool carriers operator position. Controls that return to their neutral position when the operator releases the control (return-to-neutral control) meet this requirement. Except for return-to-neutral controls, reactivation of the attachment s
41、hall only be possible by two or more separate and distinct actions by the operator. 5.11.2 For powered attachments normally used when the compact tool carrier is stationary and the attachment provides an alternative operator position, a means may be provided to allow operation of these attachments w
42、ith the operator not in the compact tool carriers operator position. Such means shall require an intentional action by the operator prior to leaving the compact tool carriers operator position. 5.11.3 The travel control system shall be disabled or guarded by location during operation of a powered at
43、tachment with a seated operator position (e.g., backhoe attachment). The travel controls being located outside the zones of reach as provided in ISO 6682 satisfies the requirement of guarded by location. 5.12 Remote operator-controlled compact tool carriers shall also comply with the requirements as
44、 specified in ISO 15817. SAE INTERNATIONAL J2752 SEP2015 Page 6 of 11 6. OPERATOR PROTECTION 6.1 The operators working space when in the operator position shall not present any sharp, exposed edges or acute angles/corners. Radius of corners and bluntness of edges shall comply with ISO 12508. 6.2 A s
45、uitable device (e.g., handhold) allowing the operator to support himself during machine travel shall be provided. If the compact tool carrier is equipped with an operator platform, the device shall not restrict or impede the operators access to and from the platform. The device and the control(s) fo
46、r travel shall be located so the operators hand will be within the width of the frame of the compact tool carrier when the operator grasps the control(s) or device. NOTE: Since the operator of a compact tool carrier is not seated while operating the machine, a roll-over protective structure (ROPS) i
47、s not required. NOTE: A roll-over protective structure (ROPS) is not required on an attachment having its own operating position due to the compact tool carrier being stationary during operation of the attachment. 7. CAPACITY RATING 7.1 Compact tool carriers shall use the appropriate capacity rating
48、 method for the equipment fitted on the compact tool carrier. For compact tool carriers with interchangeable equipment, each different type of equipment shall be rated using the appropriate capacity rating method for that type of equipment. NOTE: For example, the rated operating capacity for a compa
49、ct tool carrier with lift arms and bucket shall be in accordance with ISO 14397-1. 7.2 The mass of the operator (75 kg) should only be used during the capacity rating test(s) if the mass of the operator is supported only by the machine. 8. TIPPING LIMIT 8.1 The compact tool carrier and interchangeable equipment, if equipped, but with no attachment, shall meet the fol
