ISO-11168-1995.pdf
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1、INTERNATIONAL STANDARD IS0 11168 First edition 1995-09-01 Socket wrenches for spark- and glow-plugs Cl shape II: male hexagon drive for wrench opening according to IS0 691 having a size not lower than “s”; shape III: hole with insertable tommy bar; shape IV: fork for joint connection; shape V: all o
2、ther shapes admitted. The symbol of the shape must be stated in the des- ignation; for shapes I and II, the symbol must also in- clude the characteristics defined in IS0 1174 and IS0 691. The size of drives for shapes Ill, IV and V are left to the manufacturers discretion. 5 Retaining system The wre
3、nches described in this International Standard can be fitted with an adequate spark-plug retaining system. In such a case the spark-plug must release under a traction force of between 5 N and 30 N. The retaining system shall avoid any damage to the spark-plug insulator. For certain devices, the inte
4、rnal diameter of this de- vice can be less than the diameter 4 given in table 1. 6 Torque testing Place the tool in a hexagon test mandrel and apply the corresponding minimum torque indicated in table 2. This test shall be carried out using a hexagon test mandrel with minimum hexagon size and minimu
5、m dimensions across corners given in the corresponding International Standards, covering spark and/or glow plugs (see annex A). The hexagon test mandrel shall be hardened to not less than 55 HRC. The depth of penetration of the hexagon mandrel into the tool shall be 4 mm. Following the application o
6、f the minimum test torque, any possible damage or deformation shall not affect usability of the socket wrench. 7 Designation A socket wrench for spark- and glow-plugs conform- ing to the present International Standard shall be designated as follows: a) “plug wrench”; b) reference to this Internation
7、al Standard (i.e. IS0 11168); c) width across flats, s, in millimetres; d) the symbol of the shape of the drive system with, for shapes I and II, the drive dimensions. EXAMPLES A socket wrench for spark- and glow-plugs with a width across flats s of 19 mm and a female square drive (shape I) = 12,5 m
8、m is designated as follows: Plug wrench IS0 11168 - 19 - I - 123 A socket wrench for glow-plugs with a width across flats s of 14 mm with fork for joint connection (shape IV) is designated as follows: Plug wrench IS0 11168 - 14 - IV 8 Marking Socket wrenches for spark- and glow-plugs shall be marked
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