Mk 9 Brake check by admin | Jun 23, 2018 | Maintenance Reports, mk9 | 1 comment Pit stop museum style! Mk 9 getting a brake check Share this:TweetPrint 1 Comment Wayne Berry on 29th April 2019 at 4:43 am Hello I am volunteer at the Canberra Australia fire museum where we are refurbishing a Thornycroft Nubian airport crash tender. Currently we are wrestling with brake issues in particular the dual booster function for the 6X6 system. If you had and could send us a pic of disassembled rear booster showing the components and/or a description from a service manual etc it would be a great help. Cheers Wayne Berry Reply Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.