Hein Werner 4-Ton V-Pack & Piston Assembly Help Needed

[multiscepter]

Hello All,
Any help you folks can provide would be great. Having trouble reassembling the 1.5" Diameter Piston and V-Pack on my 4-Ton Hein Werner. When I disassembled the unit there were five, fairly compact, V's in place. Unfortunately I didn't document this part of the tear down too well so there may have been six V's to start. The refurbishment kit has six fresh V's. I cannot eat enough Wheaties to compress the six so I gave five a try. Made some progress but only get the nut in about half way. Instead of forcing the issue here I am looking for help. Thank you.
John

 

[Hiball]

1st of all, Did you soak them in hydraulic oil prior to assembly? Secondly I'm assuming we are talking about a pump piston Vee set? If So, they is No requirement that the compression nut needs to be flush with cylinder, the beauty of Vee's is that as the jack is used you can snug them up to extend the seals life, "Cranking" them down initially only prematurely wears the lip of the seal.

 

[multiscepter]

Hiball,
I did not soak them in hydraulic oil. Is there a certain amount of time for soaking? I assume this goes for all seals on the unit. What about the number of Vees? Thank you.
John

 

[Hiball]

Hiball,
I did not soak them in hydraulic oil. Is there a certain amount of time for soaking? I assume this goes for all seals on the unit. What about the number of Vees? Thank you.
John

I would do at least 4-6 hours for the Vee's but then again it varies from manufacturer to manufacturer and is heavily dependent on how much wax and other impregnables are in the piece. In regards to the # of Vee's, again dependent on the thickness of each piece it will vary, the main thing with Vee's is there pressure rating is based off the stack height, obviously the older Vee's have the luxury of being used and compressed over many cycles, so just use some common sense and include as many as you can and still get a couple turns on the compression nut.