5.11
Section 5
Maintenance
Pinnacle Operators Manual
Pickering Laboratories Inc.
Carefully slide the 2 new Size 18 O-rings onto the white center spool.
Note: Never reuse the O-rings. They take a shape after they are installed and will not conform to a new shape.
Note: Never use substitute O-rings.
Only use O-rings provided and approved by Pickering Laboratories.
INSERTING THE SPOOL INTO THE PEEK RING
Using the special Pinnacle Valve Seal tool (the same tool used to remove the
spool), carefully put the PTFE center back into place in the PEEK ring. Rotate
the insert clockwise to prevent slicing of the O-rings. Look into the valve, and
push insert toward you to ensure that no O-rings pop out.
Line up the holes in the spool so that when it is placed on the Pinnacle, the V is
between ports 2-3. This is the equivalent to the blocked position of the insert.
REPLACING THE NEW/REBUILT VALVE ON THE PINNACLE
Ensure that at the front face of the new valve, the body and spool are
completely flush. These two pieces must be level.
Slide the new valve onto the motor mount, so that the Number 1 is at the top.
Ensure that the dowels match the openings in the back of the valve.
Ensure that the V is between ports 2-3 (that is, ensure that the spool is in the home blocked position) refer to
figure 5-10.
Push the valve face firmly against the Pinnacle PCX. Ensure that the Valve Spool is firmly pushed against the
motor mount.
Replace the cap screws and tighten until you feel slight resistance. Then make 1/8 turn past snug.
Perform a pump flush to exercise the new valve and to properly position the spool within the body (remember
to put flush lines back into the solution).
Figure 5-10
2
1
6
5
3
4