Warren rupp Sandpiper S05 Non-Metallic, Service & Operating Manual

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s05nmdl2sm-REV1107 Model S05 Non-Metallic Page 24
DIAPhRAgM SERVICINg
To service the diaphragms first
shut off the suction, then shut off the
discharge lines to the pump. Shut
off the compressed air supply, bleed
the pressure from the pump, and
disconnect the air supply line from the
pump. Drain any remaining liquid from
the pump.
Step #1:
See the pump composite
repair parts drawing, and the diaphragm
servicing illustration.
Using a 1/2" wrench or socket,
remove the 16 capscrews (items 9 &
10), and flanged nuts that fasten the
elbows (items 17 and 18) to the outer
chambers (items 14). Remove the
elbows with the manifolds and spacers
attached.
Step #2:
Removing the outer
chambers.
Using a 1/2" wrench or socket,
remove the 16 capscrews (items 11
and 13), and flanged nuts that fasten
the outer chambers, diaphragms, and
intermediate (item 4) together.
Step #3:
Removing the diaphragm
assemblies.
Use a 3/4" (19mm) wrench or six
pointed socket to remove the diaphragm
assemblies (outer plate, diaphragm,
and inner plate) from the diaphragm rod
(item 32) by turning counterclockwise.
Insert a 6-32 set screw into the
smaller tapped hole in the inner
diaphragm plate (item 28). Insert
the protruding stud and the 6-32
fastener loosely into a vise. Use a
3/4" wrench or socket to remove the
outer diaphragm plate (item 27) by
turning counterclockwise. Inspect the
diaphragm (item 15) for cuts, punctures,
abrasive wear or chemical attack.
Replace the diaphragms if necessary.
Step #4:
Installing the diaphragms.
Push the threaded stud of the outer
diaphragm plate through the center hole
of the diaphragm. Thread the inner plate
clockwise onto the stud. Insert the loose
assembly with the above 6-32 fastener
back into the vise. Use a torque wrench
to tighten the diaphragm assembly
together to 90 in lbs. (10.17 Newton
meters) 120 in lbs. Santoprene (13.56
Newton meters). Allow a minimum of 15
minutes to elapse after torquing, then
re-torque the assembly to compensate
for stress relaxation in the clamped
assembly.
Step #5:
Installing the diaphragm
assemblies to the pump.
Make sure the bumper (item 6) is
installed over the diaphragm rod.
Thread the stud of the one diaphragm
assembly clockwise into the tapped
hole at the end of the diaphragm rod
(item 31) until the inner diaphragm plate
is flush to the end of the rod. Insert rod
into pump.
Align the bolt holes in the diaphragm
with the bolt pattern in the intermediate
(item 4).
Fasten the outer chamber (item 14)
to the pump, using the capscrews (items
11 and 13) and flanged nuts.
On the opposite side of the pump,
pull the diaphragm rod out as far as
possible. Make sure the bumper (item 6)
is installed over the diaphragm rod.
Thread the stud of the remaining
diaphragm assembly clockwise into the
tapped hole at the end of the diaphragm
rod (item 31) as far as possible and still
allow for alignment of the bolt holes in
the diaphragm with the bolt pattern in
the inner chamber. Install diaphragms
with convolutions facing towards center
of pump. See sectional view on previous
page.
Fasten the remaining outer chamber
(item 14) to the pump, using the
capscrews (items 11 and 13) and
flanged nuts.
Step #6:
Re-install the elbow/
spacer/manifold assemblies to the
pump, using the capscrews (items 9 &
10) and flanged nuts.
The pump is now ready to be
re-installed, connected and returned to
operation.
OVERlAy DIAPhRAgM SERVICINg
The overlay diaphragm (item 16) is
designed to fit snugly over the exterior of
the standard TPE diaphragm (item15).
ONE PIECE DIAPhRAgM SERVICINg
(Bonded PTFE with intergral plate)
The One Piece diaphragm has a
treaded stud installed in the intergral
plate at the factory. The inner diaphragm
plate has a through hole instead of a
threaded hole.
Place the inner plate over the
diaphragm stud and thread the first
diaphragm / inner plate onto the
diapragm rod only until the inner plate
contacts the rod. Do not tighten.
A small amount of grease may be
applied between the inner plate and the
diaphragm to facilitate assembly.
Insert the diaphragm / rod assembly
into the pump and install the outer
chamber. Turn the pump over and
thread the second daiphragm / inner
plate onto the diaphragm rod. Turn the
diapragm until the inner plate contacts
the rod and hand tighten the assembly.
Continue tightening until the bolt holes
align with the inner chamber holes.
DO NOT LEAVE THE ASSEMBLY
LOOSE.
Read these instructions
completely, before in-
stallation and start-up.
It is the responsibility of
the purchaser to retain
this manual for reference. Failure to
comply with the recommendations stated
in this manual will damage the pump, and
void factory warranty.
IMPORTANT