This part of ISO 4510 specifies for guidance the types, general requirements and main nominal dimensions of mechanical pullers, attachments and adaptors used for carrying out repair work. This part of ISO 4510 includes mechanical pullers and push pullers, pulling attachments and adaptors which are commonly used for pulling gears and bearings mounted on the types of earth-moving machinery defined in ISO 6165. Machine manufacturers should consider — the usage of these pullers and pushers for carrying out repair work (see for example notes in figures A.1, A.4 and A.5); — choosing dimensions for machine design from tables 1 to 4, and — specifying, in suitable manuals as described in ISO 6750, the type of tools to be used for carrying out repair work.