power steering pump - replacing O rings

[Sandy Blackwell]

  I am looking for some info.  Actually a diagram of (gear driven) power steering pump inner workings would rock..  My power steering reservoir keeps filling up.  I have learned that if a O ring blows out or whatever it allows your oil to back up into the reservoir ...thus filling it up.  I got a pump "rebuild" kit from mack. Which is nothing but 5 O rings.  figure I can handle that but sure would like a diagram of it BEFORE I crack it open.  It is a 98 Mack CL 700 Dump Truck

[kscarbel2]

I'm guessing you have a Vickers V20.

http://www.eaton.com/ecm/groups/public/@pub/@eaton/@hyd/documents/content/pll_1573.pdf

[Sandy Blackwell]

Awesome.  I didn't want to open a can of worms, so to speak.  Maybe It won't be too bad  Thanks for the help.

[kscarbel2]

You're welcome. We aim to please.

[kscarbel2]

Be sure you lubricate the o-rings with oil or grease.