air in hydraulic system – Jinma 354 Forum › Forums › Tractor Operation And Maintenance › air in hydraulic system – Jinma 354 This topic has 1 reply, 2 voices, and was last updated 7 years, 3 months ago by oldfart2. Viewing 0 reply threads Author Posts March 11, 2018 at 4:06 pm #47722 oldfart2Participant Offline It should purge it’s self, the top of hydraulic tank has a small hole in top of cap. Just use as normal. Author Posts Viewing 0 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In