Introduction This workshop manual is mainly intended for Husqvarna 50, 50 Special, 51, and 55 models, but certain chapters can also be used for other models. The manual gives information about how to repair the saw and how to use special tools. In order to make sure that the saw will function properly, always use Husqvarna original spare parts and accessories. The information, specifications and illustrations in this manual are based on the information in effect at the time of printing. Any improvements or changes on these models will be included in future manual revisions.