How to repair your air hydraulic jack

[@damanhury3623]

What oil to use, what specifications?

[@ACHydraulic]

Use high quality hydraulic oil, viscosity ISO VG 15. Never use brake fluid!

[@bennyblones9950]

hi, how to rectify if the oil mix in the air system? while lowering it down there is some oil mix in the air releasing from the cylinder.. btw newly repair.. do i need to drain/purge down the oil from the air system? TIA

[@ACHydraulic]

Bleeding of the hydraulic system is not necessary: any air in the system will be gone if you run a full cycle, full stroke and fully down. Oil mix in the air system can be caused by leaking seals in the cylinder, causing oil to get on the dry side of the pistons. An easy way to check the cylinder seals is to disconnect the outside air hose from the quick coupling on top of the cylinder. Then run the cylinder full stroke: if oil is leaking from this fitting, then there is an inside oil leak. Another cause of oil mix in the air system could be, if the jack has been operated or stored lying on the side.

[@hishamchohan494]

tip. never use FUEL for cleaning hydraulic parts.after cleaning remaining oil with cloth brush off old glue on threads then blow air at the parts always wear safety goggles👍

[@ryanjones4062]

Are there any tips you can give me for removing the main cyclinder?? I have a 25-2 but the main is all rusted around the threads and base making this difficult.

[@hishamchohan494]

@@ryanjones4062 hi, oky if you don't know some one with a chain wrench for 4 "~6"pipe use it with the help of lever or 1or 2 meter long pipe support ps use WD 40 too or option 2 go to your local lathe machine shop

[@mustafaansari3559]

Please reply Indian price

[@ACHydraulic]

Please locate a local dealer from our website www.achydraulic.com