How can I find a user manual for the PP350 elec chainsaw?

There are few Soares for Chinese made tat with store own labels applied.

This outfit may help:

https://www.partmaster.co.uk/chainsaw/bq/pp350c/catalogue.pl?path=320260%2C648115%3A678635&model_ref=2440867

You could try customer service at B&Q, the owner of the Performance Power label they stick in all sorts of build em cheap and pile em high rubbish

Dr hiiyfc
May 2020