The vanes of R5 vacuum pumps have to be replaced by a Busch service technician. To replace the vanes of your R5, several parts need to be dismantled from your vacuum pump, including the compression chamber. Upon reinsertion, these parts must be placed back with absolute accuracy. Incorrect placement can severely affect your vacuum pump’s functionality and could lead to faulty pressure levels or a complete breakdown. Our skilled service experts are happy to replace the vanes for you on-site. Please contact your local Busch representative.