Little Giant 1-MD Instructions De Montage

Note: Motor configuration may vary from model to model.
Remarque: La configuration du moteur peut varier selon le modèle.
Nota: La configuración del motor puede variar de modelo a modelo.
REPLACEMENT PARTS LIST
PART
DESCRIPTION
NO.
*1 977108 MOTOR, 115 VOLT
*1 977452 MOTOR, 115 VOLT
*1 977853 MOTOR, 220/240 VOLT
*1 977862 MOTOR, 230 VOLT, CONDUIT BOX
1 977402 MOTOR, 115 VOLT
*1 977915 MOTOR, 220/240 VOLT
2 180042 ADAPTOR/BASE
2 180037 ADAPTOR/BRACKET
2 180031 ADAPTOR/BRACKET
3 186021 VOLUTE
3 180079 VOLUTE
4 180004 HOUSING, MAGNET
5 180602 DRIVE MAGNET ASSEMBLY
6 181165 IMPELLER/MAGNET ASSEMBLY
7 180058 SHAFT
8 921067 WASHER, THRUST
9 924007 O-RING
10 911403 STUD, COLLARED
11 920003 NUT, WING #8-32
12 920006 NUT, HEX #8-32
12 901424 SCREW, MACH #8-32 X 1/2"
13 921075 WASHER, FLAT, #8
* Indicates motors with sleeve bearings.
* Ces moteurs sont pourvus de paliers filetés.
* Indica motores con baleros de manguito interior.
Parts list applies to products shown. Other models are available; however, parts may vary. For other models, contact Parts
Depot, factory, or distributor for replacement parts. Be sure to give the six digit product number and model number when
requesting parts.
La liste de pièces s'applique aux produits montrés. D'autres modèles sont disponibles ; cependant, les pièces peuvent
varier. Pour les autres modèles, communiquez avec l'entrepôt de pièces, l'usine ou le distributeur pour les pièces de
remplacement. Veillez à indiquer les six chiffres du numéro de produit ainsi que le numéro de modèle lorsque vous
commandez des pièces.
La lista de partes es aplicable a los productos que aparecen aquí. Hay otros modelos disponibles; sin embargo, las partes
pueden variar. Para otros modelos, comuníquese con el Almacén de partes, la fábrica o con los distribuidores de partes.
Asegúrese de proporcionar el número de producto de seis dígitos y el número de modelo cuando pida las partes.
PUMP MODEL & CATALOG NUMBER
1
1
1 1
1
1
1
1 1 1 1 1
1 1 1
1 1 1 1
1 1 1 1 1 1 1
1 1 1 1 1 1 1
1 1 1 1 1 1 1
1 1 1 1 1 1 1
2 2 2 2 2 2 2
1 1 1 1 1 1 1
4 4 4 4 4 4 4
4 4 4 4 4 4 4
4
4 4 4 4
4 4 4 4 4
Form 993314 - 06/2007
©2007 Franklin Electric Co., Inc.
Little Giant® is a registered trademark of Franklin Electric Co., Inc.
Little Giant
P. O. Box 12010
Oklahoma City, OK 73157-2010
405.947.2511 • Fax: 405.947.8720
www.LittleGiantPump.com
CustomerService-WTS@fele.com
The patented Little Giant magnetic drive pump design consists of a cylindrical drive magnet attached to the motor shaft, which
rotates around a chemical resistant plastic separator housing. Inside this housing is a magnet completely encapsulated in
chemical resistant plastic, and fixed to the impeller. The impeller assembly is free to rotate on a spindle that is supported at both
ends. The spindle is held captive and does not turn. Front and rear thrust washers are utilized as wear bearings. The washers are
held captive and do not revolve. This prevents wear on the shaft. With the magnetic coupling the motor drives the impeller. This
coupling eliminates the conventional shaft seal and its possibility of leakage.
The plastic parts are made of glass-filled polypropylene. The spindle shaft, which is stationary, and the captive thrust washers
(front and rear) are titanium. The O-ring seal is nitrile. The impeller-driven magnet is uncoated ceramagnet A (barium ferrite) type
ceramic.
Your Little Giant pump is delivered to you completely preassembled and pretested from the factory. The MD-series
pumps handle most mildly corrosive fluids such as low concentrations of acids and alkalies in pH range of 5 to 9 at fluid
temperatures up to 150 ° F. It is ready for immediate use. The pump may be installed in any position. It may be mounted
vertically with the pump head down. Proper plumbing connections should be made. See specification table to determine
1
what size intake and discharge your pump has. Use a thread sealer on all pipe connections and hand tighten only.
1
Excessive force may damage the plastic part. Make sure the wing nuts are tight before operating the pump.
1
Motor nameplates list all electrical data. Make sure the pump is connected to proper voltage before operating. When wiring
pumps with no plug, the green (or green/yellow) wire is the ground. The other two wires are line (live).
1 1
These pumps are not submersible. Operate the pumps only in the in-line mode. Do not put the units in liquid. Pump should
be installed in a dry area and protected from splash. These pumps are not self priming models. IMPORTANT: The pump
1 1 1
must be installed so that the pump head (volute) is flooded before starting. That is, the inlet of the pump must be below the level
1 1 1
of the surface of the liquid being pumped. (See Figure 1.)
1 1 1
Do not restrict the intake side of the pump. Connections on the intake side
1 1 1
should not be of smaller inside diameter pipe or tubing or hose than the intake
1 1 1
inside diameter of the intake thread designation. If reduced flow is required
restrict the discharge side. Installing a valve or other type of restriction device
2 2 2
on the discharge side is the proper method for reducing flow from the pump.
1 1 1
When using a valve the pump can be throttled to provide various flow rates
4 4 4
and pressures without harming the motor or the pump parts.
4 4 4
The pump should not be installed in a manner that will subject it to splashing
4 4
or spraying.
4 4
MAKE CERTAIN THE UNIT IS DISCONNECTED FROM THE POWER SOURCE BEFORE ATTEMPTING TO SERVICE OR
REMOVE ANY COMPONENT!
1. The motor's sleeve bearings should be lubricated every six months with two to three drops of S.A.E. 20 weight non-detergent
oil. The oil holes are located on top at each end of the motor.
2. All wetted parts can be serviced by removing the four wing nuts from the housing. The pump head components can easily
be replaced in the field if necessary.
3. Lightly clean any corrosion or debris which may clog the impeller.
4. If pump is tripping circuit breakers, GFCI, or not operating properly after cleaning, return to Little Giant or its authorized
service center. DO NOT attempt repairs yourself.
5. Be certain power cord is in good condition and contains no nicks or cuts.
La conception brevetée de la pompe à entraînement magnétique Little Giant consiste en un cylindre magnétique
d'entraînement, fixé à l'arbre du moteur, qui tourne autour d'un boîtier séparateur de plastique résistant aux produits
chimiques. À l'intérieur du boîtier se trouve un aimant complètement encapsulé dans du plastique du même type. Cet
aimant est fixé à la turbine. Celle-ci tourne sur un mandrin supporté à ses deux extrémités. Le mandrin, lui, ne tourne pas.
Des rondelles de butée avant et arrière servent de coussinets d'usure. Afin de prévenir l'usure du mandrin, les rondelles
sont immobilisées et ne tournent pas. Le couplage de l'aimant acionne le moteur qui fait tourner la turbine. Le couplage
élimine le presse-étoupe de l'arbre et du même coup le risque de fuite.
1-MD
2-MD
3-MD
PUMP CONSTRUCTION
PUMP MATERIALS
INSTALLATION
Figure 1
SERVICE INSTRUCTIONS
COMPOSITION DE LA POMPE