Backhoe 4500 Crowd cylinder

   / 4500 Crowd cylinder #1  

berky

Member
Joined
May 31, 2011
Messages
30
Location
Evansville, IN
Tractor
ford 4500, 555B
:confused:Hoping someone out there may be able to help because I am a little confused. Over the years I have rebuilt several cylinders on both the loader and the backhoe of my 4500. The crowd cylinder has been acting a little funny so I decided to tackle it in the last few days. Got it off (Boy is that sucker heavy) and apart (seals were all in terrible terrible shape, surprised it even worked at all). I noticed on the piston that both the front and rear seal sets were all facing in the same direction (toward the rear). I have usually found that the front set faces forward and the rear set to the back on a double acting cylinder. Might have some previous owner installed the seals wrong or is it a possibility that Ford did this because the crowd cylinder usually needs all it power on the out-stroke (booming dipper in) when digging? I want to get it right now before I have to pull it off again.
Thanks in advance for any and all help.
 
   / 4500 Crowd cylinder #2  
Berky, as you were thinking, someone put it together incorrect. Lip of chevrons always face pressure or, in this case, away from the piston.
 

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