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View Full Version : Disassembly of a Rock LPR (Full Sized)



Badger
02-08-2010, 03:35 AM
For those who are having problems with your Full Sized Rock you can easily service it yourself with a few basic tools.
Here is what you will need:


3/8”-24 1.5"bolt x 1
3/8”-24 nut x 2
Washer
Strap Wrench
8/16” Wrench


http://i823.photobucket.com/albums/zz160/badgerbadger1/Rock0.jpg
http://i823.photobucket.com/albums/zz160/badgerbadger1/Rock1.jpg
Remove the Rock knob from adjuster end
Take the bolt and thread 2 nuts and then the washer

http://i823.photobucket.com/albums/zz160/badgerbadger1/Rock2.jpg
Screw the bolt into the LPR with the washer in between the 1st nut and the face of the LPR

Clamp the head of bolt in a vice and use your wrench to snug the first nut tightly against the washer.
Then snug down the second nut jamming it tightly against the first nut.

http://i823.photobucket.com/albums/zz160/badgerbadger1/Rock3.jpg

Take your strap wrench to the body of the ROCK and unscrew
The front end will come off

http://i823.photobucket.com/albums/zz160/badgerbadger1/Rock4.jpg

Once the Front cap is off, you will see the 2 washers, Spring, Piston body with O-Ring.

At the other end, take out the air fitting and the pin and small spring should come out.
Clean the inside of the with solvent and replace the O-ring
The size should be 112, and get it made out of Viton (not Urethane or Buna).

There are a couple of versions of Rocks out there. I’ve heard that earliest versions had press fit caps at the adjuster end so be aware.

- Badger