8
TROUBLESHOOTING
GENERAL NOTES:
1. Do not pump liquids containing metal fines.
2. Orient the discharge port to either 12 or 9 o’clock position.
3. If magnets de-couple, stop the pump immediately. The rare
earth magnets used in this pump are more resistant to
demagnetization than ceramic magnets, but operating the
pump with the magnets de-coupled will eventually weaken
the magnets.
4. Plastic pumps will expand and contract with temperature so peri-
odically check and hand-tighten screws. This pump is designed
to accept an o-ring on the discharge flange and inlet chamfer
as a backup to the NPT or BSP threads to ensure leak-free
operation after temperature cycling.
5. Fitting o-rings on discharge flange and inlet chamfer is
possible.
NO DISCHARGE
1. Air leaks in suction piping.
2. Pump not primed.
3. Discharge head too high.
4. Suction lift too high or insufficient NPSHA. Suction lift should
be 2 feet above NPSHR.
5. Closed valve.
6. Viscosity or specific gravity too high (magnets uncoupled).
INSUFFICIENT DISCHARGE
1. Air leaks in suction piping.
2. Discharge head higher than anticipated.
3. Suction lift too high or insufficient NPSHA. Suction lift should be
2 feet above NPSHR.
4. Clogged suction line, foot valve or crimp in hose.
5. Foot valve too small.
6. Foot valve or suction opening not submerged enough.
7. Incorrect pump rotation.
INSUFFICIENT PRESSURE
1. Air or gasses in liquid.
2. Impeller diameter too small.
3. Discharge head higher than anticipated.
4. Incorrect pump rotation.
LOSS OF PRIME
1. Leaking suction or discharge line.
2. Suction lift too high or insufficient NPSHA. Should be 2 feet
above NPSHR.
3. Air or gasses in liquid.
4. Foreign matter in impeller.
5. Leaking valve.
EXCESSIVE POWER CONSUMPTION
1.
System head lower than rating
.
Pumps too much liquid.
2. Specific gravity or viscosity of liquid pumped is too high or
higher than that defined in application.
3. Binding pump parts.
VIBRATION/NOISE
1. Excess bearing wear.
2. Drive magnet uncoupled.
3. Loose magnet.
4. Pump cavitation.
5. Motor or piping not properly secured.
6. Foreign object in impeller.
CHEMICAL REACTION DISCLAIMER
The user must exercise primary responsibility in selecting the prod-
uct’s materials of construction, which are compatible with the fluid(s)
that come(s) in contact with the product. The user may consult Finish
Thompson, Inc. (manufacturer) and a manufacturer’s representative/
distributor agent to seek a recommendation of the product’s material of
construction that offers the optimum available chemical compatibility.
However neither manufacturer nor agent shall be liable for product
damage or failure, injuries, or any other damage or loss arising out
of a reaction, interaction or any chemical effect that occurs between
the materials of the product’s construction and fluids that come into
contact with the product’s internals.
WARRANTY
Finish Thompson Inc. warrants this pump product to be free of defects
in materials and workmanship for a period of one year from date of
purchase by original purchaser. If a warranted defect occurs, which
is determined by manufacturer’s inspection, within this period, it will
be repaired or replaced at the manufacturer’s option, provided (1) the
product is submitted with proof of purchase date and (2) transporta-
tion charges are prepaid to the factory. Liability under this warranty is
expressly limited to repairing or replacing the product or parts thereof
and is in lieu of any other warranties, either expressed or implied. This
warranty does not apply to normal wear of the product or components.
This warranty does not apply to products or parts broken due to, in
whole or in part, accident, overload, abuse, chemical attack, tamper-
ing, or alteration. The warranty does not apply to any other equipment
used or purchased in combination with this product. The manufacturer
accepts no responsibility for product damage or personal injuries
sustained when the product has been modified or altered in any way. If
this warranty does not apply, the purchaser shall bear all costs for labor,
material, and transportation.
Manufacturer shall not be liable for incidental or consequential dam-
ages including, but not limited to, process down time, transportation
costs, costs associated with replacement or substitution products, labor
costs, product installation or removal costs, or loss of profit. In any and
all events, manufacturer’s liability shall not exceed the purchase price of
the product and/or accessories.
WARRANTY REGISTRATION
Thank you for your purchase of this quality Finish Thompson product. Be
sure to take a minute to register your pump at
Finishthompson.com/warranty.
Simply provide the model number, serial
number and a few other pieces of information.