red lion RLSP-75 Manuel page 5

SYMPTOM
Failure to Pump not properly primed.
pump:
Speed too low.
Total head more than for which pump was
intended.
Suction lift is too great.
Reduced Air pockets or leaks in suction line.
capacity and/
Clogged impeller.
or head:
Strainer too small or clogged.
Insufficient submergence of suction line.
Excessive suction lift.
Total head more than that for which the pump
was intended.
Excessively worn impeller.
Pump loses Air leaks in suction line.
prime:
Excessive lift and operating too near shut-off
point.
Water level drops while pumping, uncovering
suction piping.
Mechanical Bent shaft and/or damaged bearings.
troubles and
Suction and/or discharge piping not properly
noise:
supported and anchored.
All manuals and user guides at all-guides.com
TROUBLESHOOTING
CAUSE
Make sure pump casing and suction line are full of water. See prim-
ing instructions.
WARNING - ELECTRICAL PRECAUTIONS
All wiring, electrical connections and system grounding must comply
with the National Electrical Code (NEC) and with any local codes and
ordinances. Employ a licensed electrician. Check voltage at motor
terminals and at meter when pump is operating. If low, refer to wiring
instructions or check with your power company. Check loose connec-
tions.
A pump designed for higher head needed.
Locate pump closer to source of water. Make sure suction piping is
large enough.
Check suction piping.
Remove and clean.
Use larger strainer or clean.
Add lengths of suction pipe to keep submerged end well below the
water surface.
If caused by suction pipe friction, enlarge piping.
A pump designed for higher head is needed.
Order replacement parts using Repair Parts List.
Check suction piping.
Move pump nearer water level.
Check water supply. Add length of pipe to suction to keep submerged
end under water.
Take motor to authorized motor repair shop.
See that all piping is supported to relieve strain on pump assembly.
5
REMEDY