7.
Replace the two large O-rings (8012947) and the two smaller O-rings (8013006) on the
membrane tube plug with new O-rings from the
RSK
. Insert the small end of the membrane tube plug
into the exposed hole in the membrane element (which should have been left installed in the membrane
housing) and press the tube plug into the membrane housing as far as it will go. The ridge on the outside
of the tube plug should be flush against the end of the membrane housing.
8.
Press the piston as far as it will go toward the pump back plate. Install a new O-ring (8012588) into
its groove in the check valve plate.
9.
Press the check valve plate over the exposed end of the membrane tube plug. If necessary, rotate the
check valve plate to align it accurately with the pump body and install the 3/4" and the 3" socket
head cap screws. Check that the two large O-rings (8012588) in the check valve plate and the pump
back plate are still seated in their grooves and then tighten the four cap screws evenly with a 1/4"
Allen wrench.
10.
Slide the two 5" socket head cap screws through the holes in the check valve plate and the back
plate. Slide the rubber boot onto the piston shaft. See
Figure R-8
.
11.
Insert a small screwdriver or an Allen wrench through the hole in the piston shaft and rotate the shaft
to align its hole with the hole in the slider shaft of the drive assembly. When they are aligned, slide
the holes in the drive assembly bracket over the studs projecting from the pump back plate. Insert
the coupling pin through the aligned holes in the slider shaft and piston shaft. Push the rubber boot
over the coupling pin to hold it in place.
12.
Install the four hex nuts on the
studs projecting from the pump
back plate through the drive
assembly bracket and tighten
evenly with a 1/2" open-end
wrench and 1/4" Allen wrench.
Do not overtighten these
fasteners!
13.
To replace the O-rings beneath
the cleaning valve assembly,
refer to
Figure R-9
. Unscrew the
two socket head cap screws using
a 5/32" Allen wrench and
remove the assembly from the
pump body. Remove old O-rings
(8012594) and (8012697) and
replace them with new O-rings
from the
RSK
. Replace the
cleaning valve assembly on the pump body and install the two cap screws. This completes the
procedure for reassembly of the watermaker. When operation is commenced again, carefully inspect
the watermaker for proper operation and any leaks or other signs of incorrect assembly.
