by .Max-E-Glas Dura-Glas Pump Sta-Rite Diagram
January 24, 2013 in Sta-Rite Max-e-Glas-Dura Pump by PoolSpaRemote
DURA-GLAS and MAX-E-GLAS CENTRIFUGAL PUMPS with TRAP
Failure to pump
Reduced capacity or discharge pressure
Suction leaks/lost prime:
- Pump must be primed; make sure that pump volute
and trap are full of water. - Make sure there are no leaks in suction piping.
- Make sure suction pipe inlet is well below the water
level to prevent pump from sucking air. - If suction trap gasket is defective, replace it.
- Suction lift of 15 to 25 feet (4.5 to 7.5 meters) will
reduce performance. Suction lift of more than 25
feet (7.5 meters) will prevent pumping and cause
pump to lose prime. In either case, move pump
closure (vertically) to water source. Make sure
suction pipe is large enough.
Clogged pipe/trap/impeller, worn impeller:
- Make sure suction trap is not clogged; if it is, clean
trap and strainer. - Make sure impeller is not clogged,
check impeller for clogging - Impeller and diffuser may be worn. If so, order
replacement parts from Repair Parts List - Pump may be trying to push too high a column of water. If so, a “higher
head” pump is needed.
Electrical:
- Pump may be running too
slowly; check voltage at
motor terminals and at
meter while pump is
running. If low, see wiring
instructions or consult
power company. Check
for loose connections. - Pump may be too hot.
- Check line voltage; if
less than 90% or more
than 110% of rated
voltage consult a
licensed electrician. - Increase ventilation.
- Reduce ambient temperature.
- Tighten any loose connections.
- Check line voltage; if
