Doors

[Jonathan Garruba <jgarru01@kepler.poly.edu>]

Does anyone know if the seals in the pnuematic piston/cylinder are
replaceable? and if so where they are available?

What kind of pressure should the electric pump be able to generate? my
system maxes at 91 PSI. Is it the compressor or small leaks in the system?

91 is sufficient to open my passenger door, but the drivers side
cylinder leaks.

thanks.
Jon