s07nmdl1sm-rev0817
sandpiperpump
.
com
16
• Model S07 Non-Metallic
Intermediate Assembly
IMPORTANT
When the pumped product source is at a higher
level than the pump (flooded suction condition),
pipe the exhaust higher than the product source
to prevent siphoning spills. In the event of a
diaphragm failure a complete rebuild of the
center section is recommended.
INTERMEDIATE ASSEMBLY REPAIR PARTS LIST
ITEM PART NUMBER
DESCRIPTION
QTY
4
114-023-551
Bracket, Intermediate
1
7
135-036-506
Bushing, Plunger
2
24 560-001-360 O-Ring
2
27
620-019-115
Plunger, Actuator
2
29
675-042-115
Ring, Retaining*
2
*NOTE:
It is recommended that when plunger components are
serviced, new retaining rings be installed.
Step #1:
See
PUMP ASSEMBLY DRAWING.
Using a 3/8" wrench or socket, remove the four capscrews
(items 12). Remove the air inlet cap (item 8) and air inlet
gasket (item 20). The pilot valve assembly (item 3) can now
be removed.
Step #2:
Servicing the actuator plungers.
See PUMP ASSEMBLY DRAWING
.
The actuator plungers (items 27) can be reached through
the stem cavity of the pilot valve in the intermediate bracket
(item 4). To service bushings, o-rings and retaining rings, see
Intermediate Drawing.
Remove the plungers (items 27) from the bushings (item
7) in each end of the intermediate cavity. Inspect for wear or
damage. Replace plunger as needed. Apply a light coating
of grease to each o-ring and re-install the plungers in to the
bushings. Push the plungers in as far as they will go.
Step #3:
Re-install the pilot valve assembly into the
intermediate assembly.
Be careful to align the ends of the stem between
the plungers when inserting the stem of the pilot
valve into the cavity of the intermediate. Re-install the
gasket (item 20) air inlet cap (item 8) and capscrews
(items 12).
Connect the air supply to the pump. The pump is now
ready for operation.
PLUNGER BUSHING, O-RING, AND RETAINING RING
SERVICING
To service the plunger bushing components first
remove the two retaining rings (items 29) using a
small flat screwdriver. *Note: It is recommended that new
retaining rings be installed.
Next remove the two plunger bushings (items 7). Inspect
the bushings for wear or scratches. Replace the bushings as
necessary.
Inspect the two o-rings (24) for cuts and/or wear.
4: AIR
END