Page 8
SYMPTOM
POSSIBLE CAUSES
SOLUTION
PUMP IS OPERATING, BUT
NOT PUMPING FLUID
Air bubble in intake cylinder
(especially if right after
install/re-install)
Turn the pump off, manually move
the push rod through a full stroke,
and restart the pump.
Piston has disconnected from
piston rod
Pull pump, dry piston and piston
rod threads, apply crazy glue, and
reassemble.
Stainless steel ball is stuck on
piston seat
Pull pump, clean and inspect the
piston.
PUMP OPERATING BUT NOT
PUMPING FLUID,
DISCHARGE LINE HAS
VACUUM AND IS SUCKING
AIR IN
Well is dry or pump depth is
above liquid level
Lower pump depth setting. Turn
the pump off, remove the well cap
and drive components, install a 5
or 10 foot length of drop assembly
to lower pump depth setting.
Crack or disconnection in
drop assembly, either
fiberglass drop shafts or PVC
Pull pump. Inspect drop assembly
for disconnections, cracks
Piston has disconnected from
piston rod
Pull pump, dry piston and piston
rod threads, apply crazy glue, and
reassemble.
Intake filter or lower pump
assembly clogged
Pull pump. Remove build up/clog.
Replace intake filter if necessary.
ABNORMALLY RAPID SEAL
FAILURE OR WEAR ON
BEARINGS
Alignment is not linear. Drop
assembly may be
crooked/cross-threaded at
couplings.
Pull pump, inspect drop assembly
for cross-threading.
Backplate or push rod may
be bent
Inspect backplate and push rod for
warping/bending.
Push rod may be worn
through at contact point with
linear bearing
Replace push rod, linear bearing,
and seals in pump head.
LEACHATE IS LEAKING FROM
SEAL WEAR INDICATOR
HOLE ON PUMP HEAD
ASSEMBLY
Shafting may be too tall,
causing push rod to exit seals
Verify push rod protrusion per
install manual p. 9 and adjust stack
height if necessary.
Seals inside the seal body
need to be replaced
Remove seal body assembly from
pump head and inspect. If worn,
install new seals. Replacement seal
kits and seal body assemblies are
available through
QED
.
