1040 M Spring Home › Forums › Heavens Best Forum › New Products / Equipment › 1040 M Spring This topic has 0 replies, 1 voice, and was last updated 11 years, 5 months ago by Mn09. Viewing 1 post (of 1 total) Author Posts July 29, 2013 at 6:11 pm #144872 Mn09Participant This is the spring that goes under the Beater Bar cover to allow the height adjustment Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In