s05conductiveactelsm-rev1218
sandpiperpump
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Model S05 Conductive Acetal •
13
Check Valve Drawing
MODULAR CHECK BALL VALVE SERVICING
Before servicing the check valves, first shut off the suction
line and then the discharge line to the pump. Next, shut off the
compressed air supply, bleed air pressure from the pump, and
disconnect the air supply line from the pump. Drain any remaining
fluid from the pump. The pump can now be removed for service.
To access the modular check valve, remove the elbows (items
16 and 17 from pump composite repair parts drawing). Use a 1/2"
wrench or socket to remove the fasteners. Once the elbows are
removed, the modular check valves can be seen in the cavities
of the outer chamber (items 13).
Inspect the check balls (items 2) for wear, abrasion, or cuts on
the spherical surface. The check valve seats (items 33) should be
inspected for cuts, abrasive wear, or embedded material on the
surfaces of both the external and internal chamfers. The spherical
surface of the check balls must seat flush to the surface of the
inner chamfer on the check valve seats for the pump to operate to
peak efficiency. Replace any worn or damaged parts as necessary.
RE-ASSEMBLE THE CHECK VALVE
Place a check ball (item 2) in the ball cage of either the discharge
elbow or the outer chamber. Install a check valve seat in the counter
on each end of the chamber. Refasten the elbows to the chamber.
33
2
24
13
17
10
9
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
4: AIR
END