SCUBAPRO MK 25/MK 20 First Stages
2003 SCUBAPRO
Important note
: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO
technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians
must be employed by an authorized SCUBAPRO facility.
5
3/8”
On some early models of the MK 20
this was loosened using a 3/8” hex
wrench.
Loosen the seat retainer while holding
the first stage with a first stage handle.
5/32”
Remove the seat retainer. The high-
pressure seat assembly and spring can
now be removed.
On the current version of the MK 25 the
seat retainer is adjustable.
Disassemble for cleaning using a 5/32”
hex wrench.
NOTE: The adjusting screw is turned
clockwise to remove.
Use the universal tool to loosen the cap
from the body. Hold the regulator body
with a first stage handle.
