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Ford 9N, 2N & 8N Discussion Board

hydraulic seal and solid back up ring

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Posted by mech on September 18, 2013 at 23:43:39 from (

Hi dear

I have a question on the subject of hydraulic cylinders, where I have a hydraulic cylinder and I want to replace all the oil seals , but, when i disassembly the hydraulic cylinder and the gland , i found inside the gland oil seal and backup ring together, since , the back up ring is solid (uncut) (none split) and is placed inside the seal as show in the picture above , since this seals and backup ring is placed inside the gland which is have internally grooved , so , my question is :

1- how can i installed this back up ring inside the gland ?

2- is this seal and back up ring is installed together or each one separately ?

3- if i want to cut this back up ring at 30 degree , are there problem or not ? I mean is this correct or not ?

4- if i want to warm the back up ring in the hot water and then put it inside the seals directly , and then installed it together inside the gland , are there problem or not ? I mean is this correct or not ?

5- if i want put the back up ring inside the seal and shaped it together as kidney shape and then installed it inside the gland , is the back up ring is broken during the formed it or no ?

the attach file above is indicate the seal and back up ring

i will wait your help to answer me dear

This post was edited by mech at 23:48:32 09/18/13.


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