Magnum Venus Plastech PATRIOT 5 PAT-PH-5000 Series - Manual (Page 18)

PAT-PH-5000 Series Powerhead Manual
Rev. 05/2012 Page | 18
Valve Block Assembly:
1. Using your thumb push the valve piston (MPH-2517) all the way into the lower
valve block (PAT-PH-5002).
2. Apply a small amount of removable thread locking compound to the threads on
one end of the valve poppet (PAT-PH-5005) and thread it into the valve piston
(MPH-2517) in the lower valve block while holding the valve piston with your
thumb.
3. Turn the valve poppet in the lower valve block (PAT-PH-5002) so that the hole in
the poppet body is aligned with the side port.
4. Insert a 7/32” hex wrench through the side port and into the hole in the valve
poppet to hold the valve poppet in place, now use a 7/16” socket wrench to tighten
the valve poppet into the valve piston. Do not over tighten.
5. Apply a small amount of removable thread locking compound to the threads on
the other end of the valve poppet (PAT-PH-5005).
6. Apply some brown grease (08465) to o-ring (O-B-125) on the upper valve block
(PAT-PH-5001) and push it into the lower valve block (PAT-PH-5002) over the
valve poppet.
7. Insert the 7/32” hex wrench through the side port and into the hole in the valve
poppet (PAT-PH-5005) to hold the valve poppet in place, now use a 7/16” socket
wrench to tighten the other valve piston (MPH-2517) onto the valve poppet. Do
not over tighten.
8. Using a 7/16” wrench install the two hex bolts (F-HB-04C-08) to hold the lower
valve block (PAT-PH-5001) to the upper valve block (PAT-PH-5001).
9. Install the pipe plug (PF-SP-08) into the side port of the lower valve block (PAT-
PH-5001). Use Teflon tape or pipe seal compound on the pipe plug threads to
prevent an air leak.
NOTE: Removable thread locking compound will be required for
reassembly. During disassembly, put one to two drops of removable
thread locking compound on threads of the valve poppet (PAT-PH-5005)
and assemble.
NOTE: Replace all O-rings and Seals provided in the seal kit. Apply
brown grease (08465) to all o-rings and seal areas before assembling.