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 there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2011 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/J602_201102SURFACEVEHICLESTANDARDJ602 FEB2011 Issued 1957-10 Stabilized 2011-02 Superseding J60
5、2 OCT2009 Headlamp Aiming Device for Mechanically Aimable Headlamp Units RATIONALE The technical report covers technology, products, or processes which are mature and not likely to change in the foreseeable future. STABILIZED NOTICE This document has been declared “Stabilized“ by the SAE Road Illumi
6、nation Devices Standards Committee and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability of technical requirements. Newer technology may exist. Copyright SAE International Provided by IHS under license with SAENot f
7、or ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J602 Stabilized FEB2011 Page 2 of 8 ForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.1. ScopeThis document applies to the requirements of a device used in the
8、field and inspection stations to aimand check aim of mechanically aimable headlamp units.The purpose of this document is to provide a laboratory test procedure to determine whether the devicesunder test are capable of accurately positioning headlamp units from their aiming pads and maintaining their
9、accuracy in service within the tolerances designated in this document.2. References2.1 Applicable PublicationsThe following publications form a part of this specification to the extent specifiedherein. The latest issue of SAE publications shall apply.SAE J599 MAY81Lighting Inspection CodeSAE J1383 A
10、PR85 Performance Requirements for Motor Vehicle Headlamps3. Definitions3.1 Headlamp Aiming DeviceA device used to adjust and inspect the aim of mechanically aimable headlampunits consisting of one or more fixtures designed to seat against the three aiming pads (aiming plane) onmechanically aimable h
11、eadlamp units installed on a vehicle to facilitate accurate aiming of such units, verticallyand laterally.3.2 Mechanically Aimable Headlamp UnitsA unit having three pads on the face of the lens forming amechanical aiming plane used to adjust and inspect the aim of the unit when installed on a vehicl
12、e.3.3 Aiming PlaneA plane which is perpendicular to the longitudinal axis of the vehicle and tangent to theforward most aiming pad on the headlamp.4. Samples For TestSample devices submitted for laboratory tests shall be representative of the devices asregularly manufactured and marketed. Each sampl
13、e shall include all accessory equipment peculiar to thedevice. Full assembly and operating instructions shall be provided, including information on how to checkaccuracy and maintain the device in calibration.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduct
14、ion or networking permitted without license from IHS-,-,-SAE J602 Stabilized FEB2011 Page 3 of 8 5. Laboratory FacilitiesThe laboratory shall be equipped with all facilities necessary to make the tests in thisdocument.NOTE 1All tests are to be made in air ambient temperature of 24 C 3 (75 F 5).NOTE
15、2If a vertical indication means other than a spirit level is used, equivalent accuracy shall bemaintained.6. Requirements6.1 Design Requirements6.1.1 The device shall be of such design that the seating portion will register only on the three aiming pads on theheadlamp units as covered by SAE J1383.6
16、.1.2 No part of the device, except those parts (strings, sighting devices, scales, etc.) required for referencinglateral alignment between devices, shall extend beyond the dimensional limits of the headlamp aiming devicelocating plate (Figure 1, dimension C and Figures 2, 3, and 4, dimension 4.05 in
17、 (102.9 mm) maximumdiameter).6.1.3 A device that uses adapters to fit more than one size headlamp unit shall meet all the requirements of thisdocument with and without adapters.6.1.4 The seating plane of the device shall meet the dimensions shown in Figures 1, 2, 3, and 4.6.1.5 When aiming headlamp
18、units spaced 90 in (2300 mm) apart, the torque exerted by the device at the aimingplane shall not exceed 18 lbf in (2.0 Nm) vertically and 12 lbf in (1.4 Nm) laterall y.6.1.6 The means of securing the device to the headlamp unit shall retain the device against the three aiming padswhen an axially ce
19、ntered tensile force of 4.0 lb/ft (17.8 Nm) minimum is applied to the device.6.1.7 The device shall be capable of being calibrated and shall have available for immediate use an independentcalibration fixture and/or instructions to immediately recalibrate the device.6.1.8 If a suction cup is used to
20、retain the device to the headlamp unit, the effective diameter for 5-3/4 in (146 mm)and 7 in (178 mm) headlamps shall not exceed 3.5 in (90 mm) and the effective diameter for 4 x 6-1/2 in (100x 165 mm) and 5 x 8 in (142 x 200 mm) headlamps shall not exceed 2.8 in (71 mm) when installed.6.1.9 Means s
21、hall be provided in the device for compensating within 0.1 deg through a slope range of 1.5 degfrom horizontal. The method for device compensation shall be clearly explained in the operating instructions.6.1.10 If the horizontal aim is to be accomplished by reference between devices on opposite side
22、s of the vehicle,the means provided for referencing lateral alignment between devices (sight line, string, or equivalent) shallbe located as shown in Figures 1, 2, 3, and 4.6.1.11 The spirit level or other means provided for indicating vertical aim shall be capable of showing at least a0.1 in (2.5 m
23、m) deviation with a 1 in (25 mm )1change in level.6.1.12 A horizontal aim scale shall be provided with graduations in steps of not more than 2 in (51 mm) from straightahead to at least 8 in (203 mm) left and right.6.1.13 The instructions covering the use of the device shall include those items shown
24、 in Section 3 of SAE J599.1. Represents inches (millimeters) at 25 ft (7.6 m).Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J602 Stabilized FEB2011 Page 4 of 8 6.1.14 The vertical aim scale sha
25、ll be marked 0 with the aiming plane vertical.6.1.15 The vertical aim scale shall be provided with numerical graduations in steps, each of which represents 1 in(25 mm) to provide for variations in vertical aim from at least 8 in (203 mm) below 0.6.2 Test ProcedureAssuming that the devices comply wit
26、h the general requirements, they shall be consideredacceptable if they comply with additional test requirements as follows:6.2.1 With the aiming plane vertical and with the vertical scale on the device set at 0, the angle through which theaiming plane must be rotated vertically to center the bubble
27、in the spirit level, or equivalent, shall not exceed0.5 in (13 mm).6.2.2 With the aiming planes in the same vertical plane and with the means provided for adjusting lateral aim inuse, the angle through which the aiming plane must be rotated laterally to indicate straight ahead shall notexceed 1 in (
28、25 mm)2with the lamps 24 and 90 in (610 and 2300 mm) apart.6.2.3 With the aiming planes initially in the same vertical plane and subsequently toed inward and outward 6 in(152 mm) and with the means provided for checking lateral aim in use, the error in reading shall not exceed1 in (25 mm) with the l
29、amps 60 in (1520 mm) apart.6.2.4 With the aiming plane vertical and with the vertical scale on the device set at 0, the level on the aimer shallbe adjusted prior to each of the following tests to center the bubble in the spirit level or equivalent.6.2.4.1 Each step on the vertical aim scale shall be
30、 checked and in no case shall the variation from the correct aimexceed 0.5 in (13 mm).6.2.4.2 A pair of devices shall be stabilized at 7 C 3 (20 F 5) and then installed on a pair of unlightedheadlamp units spaced 60 in (1520 mm) apart at the 7C (20 F) ambient temperature. After a period of30 min, th
31、e seating portion of the device shall continue to register against the three headlamp unit aimingpads, and the variation from correct vertical aim shall not exceed 0.5 in (13 mm) and the variation fromcorrect lateral aim shall not exceed 1 in (25 mm)3.6.2.4.3 They shall then be installed on the pair
32、 of unlighted headlamp units spaced 60 in (1520 mm) apart and thevariation from correct vertical aim shall not exceed 0.5 in (13 mm) and the variation from correct lateralaim shall not exceed 1 in (25 mm).46.2.4.4 A sample device shall be exposed to 1.7 C 3 (35 F 5) for 1 h and then immediately allo
33、wed to free fallonto a concrete floor three times from its normal operating position on a headlamp unit at a height of 40 in(1020 mm), after which it shall show no damage that would interfere with the proper calibration of thedevice. It shall then be installed in combination with its companion devic
34、e on a pair of unlighted headlampunits spaced 60 in (1520 mm) apart and the variation from correct vertical aim shall not exceed 1 in(25 mm)5and the variation from the correct lateral aim shall not exceed 1 in (25 mm)6. (This test appliesonly to devices that are supported by the headlamp unit.)6.2.4
35、.5 Using the calibration fixture and/or instructions required by 5.1.7, the device shall be calibrated andchecked for compliance with 5.2.1 and 5.2.2.2. Represents inches (millimeters) at 25 ft (7.6 m).3. Represents inches (millimeters) at 25 ft (7.6 m).4. Represents inches (millimeters) at 25 ft (7
36、.6 m).5. Represents inches (millimeters) at 25 ft (7.6 m).6. Represents inches (millimeters) at 25 ft (7.6 m).Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J602 Stabilized FEB2011 Page 5 of 8 F
37、IGURE 1DIMENSIONAL SPECIFICATIONS FOR HEADLAMP AIMING DEVICE LOCATING PLATECopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J602 Stabilized FEB2011 Page 6 of 8 FIGURE 2DIMENSIONAL SPECIFICATIONS F
38、OR HEADLAMP AIMING DEVICE LOCATING PLATE (100 X 165)Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J602 Stabilized FEB2011 Page 7 of 8 FIGURE 3DIMENSIONAL SPECIFICATIONS FOR HEADLAMP AIMING DEVI
39、CE LOCATING PLATE (142 X 200)Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J602 Stabilized FEB2011 Page 8 of 8 FIGURE 4DIMENSIONAL SPECIFICATIONS FOR HEADLAMP AIMING DEVICE LOCATING PLATE (92 X
40、 150)7. Notes7.1 Marginal IndiciaThe change bar (l) located in the left margin is for the convenience of the user in locatingareas where technical revisions have been made to the previous issue of the report. An (R) symbol to the leftof the document title indicates a complete revision of the report.PREPARED BY THE SAE ROAD ILLUMINATION DEVICES STANDARDS COMMITTEE AND THE SAE LIGHTING COORDINATING COMMITTEECopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
