SERRO SCOTTY CAMPER ENTHUSIASTS
bargman lock
tumbler replacement
from matt
To remove and replace the tumbler:

#1  Once you've seperated the two sides....  
Remove the screws highlighted in yellow.

#2  The highlighted part is a ball bearing that sits
on top of a small spring.  Both will fall out if you're
not careful and you don't want to lose them.  
Take them out and set them aside...but
remember where they go.

#3  Remove the slide with spring attached.  Note
the piece that receives the door handle sits below
the slide in a certain way.

#4 This picture is just highlighting the tumbler
itself.  Tap it from this side with a mallet or
hammer...it will take a few whacks to get it to
dislodge and slide out the other side.  DON'T use
anything to pry it out or you will damage the
housing.

#5 This shows the piece sliding out.  There's a
small piece (nub) that catches or secures the
tumbler in place.....  It doesn't move (or depress),
so be patient....there's enough room for it to slide
out.

#6 This shows the cylinder out.  All you have to
do is reverse the order to put in the new cylinder.

Getting the cylinder to disengage and slide out is
the hardest part, but as long as you don't force
it.....you should be fine.