1、June 15,2001 1 SUBJECT 7700-2-6 OUTLINE OF INVESTIGATION FOR PORTABLE PNEUMATIC TOOLS; PART 2: PARTICULAR REQUIREMENTS FOR PERCUSSION TOOLS AND PERCUSSION HAMMERS Issue Number: 1 JUNE 15,2001 COPYRIGHT O 2001 UNDERWRITERS LABORATORIES INC. 2 SUBJECT 7700-2-6 JUNE 15,2001 No Text on This Page JUNE 15
2、2001 SUBJECT 7700-2-6 3 CONTENTS FOREWORD . .4 1 Scope . 2 Components . 5 3 Undated References . . 5 Glossary . 6 General Requirement 7 General Notes on Tests . . 5 . 6 . .6 1 O Electrical Circuits . . . . . .6 . .7 . .7 14 Mechanical Strength . 15 Construction 16 Noise Emission . . 17 Resistance t
3、o Corrosion . 18 Accessories and Attachments . 4 SUBJECT 7700-2-6 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
4、 Scope section 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 pr
5、oduct which 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
6、materials or 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 examin
7、ed and tested 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
8、responsibility 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 res
9、ponsible to 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.
10、 Many tests 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 7700-2-6 5 1 Scope This Section of Part 1 is applicable except as follows: Modify 1. I as follows:
11、 The term ”tools” is replaced by ”percussion tools and percussion hammers.” 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 excep
12、t as follows: Add definition: 5.101 PERCUSSION HAMMER - A hammer with a non-rotational output designed for chiseling and demolition of concrete, street paving and similar operations, and also for compacting and solidifying materials during building construction. The hammer has a built-in percussion
13、system and the strength of impact of the mechanism is not influenced by the operator. 6 General Requirement This Section of Part 1 is applicable. SUBJECT 7700-2-6 JUNE 15,2001 6 7 General Notes on Tests This Section of Part 1 is applicable. 8 Marking This Section of Part 1 is applicable except as fo
14、llows: 8. I Item (i), Add the following: Note: Only applies to demolition hammers. 9 Instruction Manual This Section of Part 1 is applicable except as follows: 9.2.3 Under Personal Safety, items (i), (i) and (k), Add the following: Note: Only applies to demolition hammers. 10 Electrical Circuits Thi
15、s 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. JUNE 15.2001 SUBJECT 7700-2-6 7 14 Mechanical Strength This Section of Part
16、 1 is applicable. 15 Construction This Section of Part 1 is applicable except as follows: Replace 15. I I as follows: 15.11 A tool shall employ a quick connecdisconnect fitting or a threaded hose coupling on or with the tool in such a manner that all compressed air in the tool is discharged at the t
17、ime the fitting is disconnected. If a quick connect/disconnect fitting is employed, the fitting shall be separated from the tool by a whip hose. Compliance is checked by inspection and a manual test. 15.14 Add the following: Note: Only applies to demolition hammers. 16 Noise Emission This Section of Part 1 is applicable. 17 Resistance to Corrosion This Section of Part 1 is applicable. 18 Accessories and Attachments This Section of Part 1 is applicable. a SUBJECT 7700-2-6 JUNE 15,2001 No Text on This Page
