Cassese underpinner question

[Accentframer]

I have tried the search but I couldnt find any info on this. I picked up a Cassese pnuematic underpinner for 50.00. It seems to work fine. The problem i am having is the frame wants to tip down when the pressure arm comes down. I cannot get the frame to stay in place. i have tried different air pressure adjustments and I cannot get the frame to stay. It didnt come with a manual and it is the first time I have had an underpinner. The guy just wanted to get rid of it so for 50.00 i thought it would be worth it to try it. Thanks

 

[RParrish]

You can Google the Cassese Manuel and pick it up online, this brand is serviced by Larson Juhl a call to their technical hot line would help you out.
What model do you have and what is shape of your moulding?

 

[Accentframer]

It is the CS93 junior. Any type of moulding that isnt flat. if the moulding has any type of ogee to it the pressure keeps pushing it down.

 

[Framing:]

http://www.cassese.com/et/manuels/manuels/old-ancien/93/cs93.pdf

 

[RParrish]

Try putting a piece of scrap wood between the hammer and the moulding, the end of a piece of stretcher stock, screen stock or lattice. The manuals are really nothing more than a list of parts IMO.

 

[johnny]

http://www.cassese.com/et/manuels/manuels/old-ancien/93/cs93.pdf

Not sure why this made me laugh...

 

[deaconsbench]

$50...sweet.

 

[Jeff Rodier]

Try reducing the air pressure.