Thank you very much for the reply .
If I can ask you a few others about the seals ..from a little research I did I think my cylinder is a "H" model . Would these seals fit ..the only reason I ask is I didn't see what model you were referring to in your rebuild post . I added some pics of my cylinder..I hope it worked !
Could you explain how to remove the locking ring on the end of the cylinder also...I understand it's a real PIA .
Thanks again ...Ernie
Step 1 . Remove the hydraulic pipe fittings to the hydraulic cylinder and drain out the fluid/oil.
step 2.
Look around the outside rim of the big “gland nut” in the picture for a locking screw , remove it . Then get a large pipe wrench and put it on the big hex gland nut and turn counterclockwise and remove it.
step 3
Take notes or pictures of where each seal is located.
step 4
Remove each seal and label it. Then with machinists calipers carefully measure the dimensions: thickness, diameter , cross section etc
step 5
The gland nut will have seals on the inside so it must be removed from the rod and these seals removed, carefully note the orientation of the seal (ex cup side towards inside of cylinder etc)
step 6
After all seals have been removed and measured, collect the information and compare to posts 621 622. There is no longer a cylinder seal repair kit that will have the exact seals you need. Instead, you must measure and order each one individually. Your success in this endeavor lies in your ability to measure the seals and find the match in the online catalog of the many seal vendors on internet.
Good news the seals are cheap.