1、June 15,2001 1 SUBJECT 7700-2-4 OUTLINE OF INVESTIGATION FOR PORTABLE PNEUMATIC TOOLS; PART 2: PARTICULAR REQUIREMENTS FOR SANDERS, POLISHERS AND BUFFERS Issue Number: 1 JUNE 15,2001 COPYRIGHT O 2001 UNDERWRITERS LABORATORIES INC. 2 SUBJECT 7700-2-4 JUNE 15,2001 No Text on This Page JUNE 15,2001 SUB
2、JECT 7700-2-4 3 CONTENTS FOREWORD . .4 1 Scope . 2 Components . 5 3 Undated References . . 5 Glossary . 6 General Requirement 7 General Notes on Tests . . 5 . 5 . .6 1 O Electrical Circuits . . . . . .6 . .6 . .7 14 Mechanical Strength . 15 Construction 16 Noise Emission . . 17 Resistance to Rusting
3、 . 18 Accessories and Attachments . 4 SUBJECT 7700-2-4 JUNE 15,2001 FOREWORD A. This Outline of Investigation contains basic requirements for products covered by Underwriters Laboratories Inc. (UL) under its Follow-Up Service for this category within the limitations given below and in the Scope sect
4、ion of this Outline of Investigation. They are subject to revision as further experience and investigation may show is necessary or desirable. B. The observance of these requirements by a manufacturer is one of the conditions of the continued coverage of the manufacturers product. C. A product which
5、 complies with the text of this Outline of Investigation will not necessarily be judged to comply with the Outline of Investigation if, when examined and tested, it is found to have other features which impair the level of safety contemplated by these requirements. D. A product employing materials o
6、r having forms of construction which conflict with specific requirements of the Outline of Investigation cannot be judged to comply with the Outline of Investigation. A product employing materials or having forms of construction not addressed by this Outline of Investigation may be examined and test
7、ed according to the intent of the requirements and, if found to meet the intent of this Outline of Investigation, may be judged to comply with the Outline of Investigation. E. UL, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibil
8、ity of the manufacturer or any other party. The opinions and findings of UL represent its professional judgement given with due consideration to the necessary limitations of practical operation and state of the art at the time the Outline of Investigation is processed. UL shall not be responsible to
9、 anyone for the use of or reliance upon this Outline of Investigation by anyone. UL shall not incur any obligation or liability for damages, including consequential damages, arising out of or in connection with the use, interpretation of, or reliance upon this Outline of Investigation. F. Many tests
10、 required by the Outline of Investigations of UL are inherently hazardous and adequate safeguards for personnel and property shall be employed in conducting such tests. JUNE 15,2001 SUBJECT 7700-2-4 5 1 Scope This Section of Part 1 is applicable except as follows: Modify 1. I as follows: The term ”t
11、ool” is replaced with ”sanders, polishers and buffers.” 2 Components This Section of Part 1 is applicable. 3 Undated References This Section of Part 1 is applicable. 4 Units of Measurement This Section of Part 1 is applicable. 5 Glossary This Section of Part 1 is applicable. 6 General Requirement Th
12、is Section of Part 1 is applicable. 7 General Notes on Tests This Section of Part 1 is applicable. 8 Marking This Section of Part 1 is applicable except as follows: 8.1 Item (j), is not applicable. Add paragraph: 8.101 An arrow indicating the direction of rotation. The arrow shall be raised, recesse
13、d, or distinguished by other means no less visible and shall be indelible. Exception: This requirement does not apply to random-orbit type sanders, polishers or buffers. 6 SUBJECT 7700-2-4 JUNE 15,2001 9 Instruction Manual This Section of Part 1 is applicable except as follows: 9.2.3 Under Personal
14、Safety, items (i), (j) and (k) are not applicable. 10 Electrical Circuits This Section of Part 1 is applicable. 11 Rotating Output This Section of Part 1 is applicable. 12 Surface Temperatures This Section of Part 1 is applicable. 13 Accessibility of Moving Parts This Section of Part 1 is applicable
15、 14 Mechanical Strength This Section of Part 1 is applicable. 15 Construction This Section of Part 1 is applicable except as follows: 15.14 This paragraph is not applicable. 16 Noise Emission This Section of Part 1 is applicable. JUNE 15,2001 SUBJECT 7700-2-4 7 17 Resistance to Rusting This Section of Part 1 is applicable. 18 Accessories and Attachments This Section of Part 1 is applicable. a SUBJECT 7700-2-4 JUNE 15,2001 No Text on This Page
