INTRODUCTION
This instruction sheet will provide you with information required to
safely own and operate the Little Giant MDQ series aquarium pumps.
The pump you have purchased is a magnetic driven pump intended
for aquarium use, to provide water movement through filtration
systems. The pumps are installed external to the aquarium and
filtration systems, and are generally mounted below the aquarium
in the cabinet that houses the filtration systems. The pump head
parts are made of glass filled polypropylene. The spindle shaft
and thrust washers are ceramic. The impeller driven magnet is
coated ceramagnet A (barium ferrite) type ceramic. O-ring seals
are nitrile. The motor is thermally protected.
This instruction sheet covers the standard models in this pump
series. This form is applicable to other models in this series not
listed by catalog number in the replacement parts list section of
this pamphlet. If the catalog number of your pump is not listed in
the replacement parts section, then caution should be exercised
when ordering replacement parts. Always give the catalog number
of your pump when ordering replacement parts.
The Little Giant unit you have purchased is of the highest quality
workmanship and material. It has been engineered to give you
long and trouble-free service.
The Little Giant pumps are carefully inspected, tested and
packaged to insure safe operation and delivery. When you receive
your pump, examine it carefully to determine that there are no
broken or damaged parts that may have occurred in shipment.
If damage has occurred, make notation and notify the firm from
which you purchased the pump. They will assist you in the
replacement or repair, if required.
READ INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO
INSTALL, OPERATE OR SERVICE THE LITTLE GIANT PUMP.
KNOW THE PUMP APPLICATION, LIMITATIONS, AND POTENTIAL
HAZARDS. PROTECT YOURSELF AND OTHERS BY OBSERVING
ALL SAFETY INFORMATION. FAILURE TO COMPLY WITH
INSTRUCTIONS COULD RESULT IN PERSONAL INJURY AND/
OR PROPERTY DAMAGE! RETAIN INSTRUCTIONS FOR FUTURE
REFERENCE.
SAFETY GUIDELINES
DANGER: To avoid possible electric shock, special care
should be taken in the use of aquarium equipment. For each
of the following situations, do not attempt repairs yourself;
return the appliance to an authorized service facility for
service or discard the appliance.
1. DO NOT USE TO PUMP FLAMMABLE OR EXPLOSIVE FLUIDS
SUCH AS GASOLINE, FUEL OIL, KEROSENE, ETC. DO
NOT USE IN EXPLOSIVE ATMOSPHERES. PUMP SHOULD
ONLY BE USED WITH LIQUIDS COMPATIBLE WITH PUMP
COMPONENT MATERIALS.
2. DO NOT HANDLE PUMP WITH WET HANDS OR WHEN
STANDING ON A WET OR DAMP SURFACE, OR IN WATER.
3. THIS PUMP IS SUPPLIED WITH A GROUNDING CONDUCTOR
AND/OR GROUNDING-TYPE ATTACHMENT PLUG. TO REDUCE
THE RISK OF ELECTRIC SHOCK, BE CERTAIN THAT IT IS
CONNECTED TO A PROPERLY GROUNDED GROUNDING-
TYPE RECEPTACLE.
4. IN ANY INSTALLATION WHERE PROPERTY DAMAGE AND/OR
PERSONAL INJURY MIGHT RESULT FROM AN INOPERATIVE
OR LEAKING PUMP DUE TO POWER OUTAGES, DISCHARGE
LINE BLOCKAGE, OR ANY OTHER REASON, A BACKUP
SYSTEM(S) AND/OR ALARM SHOULD BE USED.
5. SUPPORT PUMP AND PIPING WHEN ASSEMBLING AND
WHEN INSTALLED. FAILURE TO DO SO MAY CAUSE PIPING
TO BREAK, PUMP TO FAIL, MOTOR BEARING FAILURES, ETC.
6. A. Do not handle the pump with wet hands or when standing
on a wet or damp surface or in water.
B. If the appliance falls into the water, DON’T reach for it! First
unplug it and then retrieve it. If electrical components of
the appliance get wet, unplug the appliance immediately
(nonimmersible equipment only).
C. Carefully examine the appliance after installation. It should
not be plugged in if there is water on parts not intended to
be wet.
D. Do not operate the pump if it has a damaged cord or plug,
or if it is malfunctioning or if it is dropped or damaged in
any manner.
E. To avoid the possibility of the pump plug or receptacle
getting wet, position aquarium stand and tank to one side
of a wall mounted receptacle to prevent water from dripping
onto the receptacle or plug. A “drip loop”, shown in Figure 1,
should be arranged by the user for each cord connecting
1
1.5-MDQ-SC
Figure 1
Franklin Electric Co., Inc.
P. O. Box 12010
Oklahoma City, OK 73157-2010
405.947.2511 • Fax: 405.947.8720
www.LittleGiantPump.com