Magnum Venus Plastech PATRIOT 7 PAT-PH-7000 Series - Manual (Page 16)

PAT-PH-7000 Series Powerhead Manual
Rev. 05/2012 Page | 16
Valve Block Disassembly:
1. Remove the two hex head screws (F-HB-04C-52) from the front of the muffler
and remove the muffler.
2. Remove the air line from the poly tee (MPH-2538) on the side of the valve block
3. Remove the valve block from the side of the powerhead by removing the four
socket head cap screws (F-CS-04C-40-SS) from the valve block.
4. Remove the two end caps (MPH-2521) from the valve block.
5. Remove the pipe plug (PF-SP-08) from the side of the lower valve block (PAT-
PH-5002). Rotate either of the two valve pistons (MPH-2517) until the hole in the
valve poppet (PAT-PH-5005) aligns with the pipe plug port in the lower valve
block.
6. Insert a 7/32” hex wrench through the pipe plug port and into the hole in the valve
poppet (PAT-PH-5005). (See Figure 1)
NOTE: The hole diameter in the valve poppet is .2685 (6.81mm) if a 7/32” hex
wrench is not available
Figure 1
Insert a 7/32” hex wrench through
the pipe plug port and into the
hole in the valve poppet (PAT-PH-
5005). Unscrew either of the two
valve pistons (MPH-2517) and
remove. Repeat removal of the
second valve piston
.