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Little Giant JP Serie Manual Del Usuario página 2

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Air Volume Control: If no perma-pressure tank is used in the pressure system,
an air volume control must be used to maintain an air cushion in the pressure
tank. Refer to the pressure tank owner's manual for instructions.
Pressure Relief Valve: A high pressure safety relief valve is recommended at
some point in the water system. Ensure its location is near the discharge of the
pump, in an area with adequate drainage. Be sure to direct the valve so that any
water flow could not spray toward any electrical devices.
MOTOR
MOTEUR
MODEL
MOTOR
MODÈLE
MODELO
HP
VOLTS
JP-050-C
1/2
115
JP-075-C
3/4
115
JP-100-C
1
115
Based on approximately 3% voltage drop • Basé sur une chute de tension
d'environ 3 % • En base a una caída de voltaje de aproximadamente 3%
WIRE GAUGES • CALIBRE DU CÂBLE •
CALIBRE DE ALAMBRE
Motor (load)
Moteur (charge)
Motor (carga)
ELECTRICAL CONNECTIONS • CONNEXIONS ÉLECTRIQUES •
CONEXIONES ELÉCTRICAS
OPERATION
WARNING: DO NOT RUN THE PUMP BEFORE PRIMING IT. THE SEAL AND
IMPELLER COULD BE PERMANENTLY DAMAGED.
PRIMING
NOTE: You will need enough water to fill the suction line(s) and casing. Priming
time (5-15 minutes) depends on distance from water source to pump.
USING AN IN-LINE CHECK VALVE:
1.
Open discharge valve on service line and nearby tap to monitor water flow.
2.
Pour clean water through priming plug opening at top of casing until water
starts flowing out the vent plug hole.
3.
Install enclosed vent plug, and tighten loosely with a wrench.
4.
Continue filling pump until water flows out of the priming hole.
5.
Install enclosed priming plug and hand-tighten.
6.
Start pump. If a tap is visible, you may see a short discharge of water
lasting 5-10 seconds.
7.
Run the pump for two minutes and then shut it off. Remove the vent plug
and priming plug.
8.
You have completed the first priming cycle, consisting of steps 2 to 7.
Repeat this process from 2 to 6 times, depending on the length of your
suction line (approximately one priming cycle for every 5 feet of suction
line). Stop when the pump begins to pump water continuously.
9.
Once the pump begins pumping water continuously, firmly tighten the vent
plug and priming plug with a wrench.
10.
If the pump does not draw water within 8 tries, shut it off and check for
suction leaks.
2
WIRE GAUGE (AWG)
CALIBRE DU CÂBLE (AWG)
CALIBRE DE ALAMBRE (AWG)
0 - 25'
50'
100'
150'
14
14
12
10
14
14
10
8
14
12
10
8
TABLE 1
Power supply (line)
Source d'alimentation
L1
L2
Suministro de energía
Ground
Mise à la terre
Pressure switch
Conexión a tierra
Manostat
Interruptor de presión
FIGURE 2
USING A FOOT VALVE:
1.
Open discharge valve on service line and nearby tap to monitor water flow.
2.
Pour clean water through priming plug opening at top of casing until the
suction line is full and water starts flowing out of the vent plug hole. You will
need approximately 1 liter of water for every 3 feet of suction line.
3.
Follow steps 3 through 6 above. If within 2 minutes water is not being
pumped continuously, stop the pump. Remove vent plug and priming
plug. Repeat steps 2 through 6 above. If this does not work, stop the pump
and check the suction line for leaks.
4.
Once the pump begins pumping water continuously, firmly tighten the vent
plug and priming plug with a wrench.
DRAINING: Drain the pump and tank if either will be subjected to freezing
200'
temperatures:
1.
Shut off the power to the pump at the main electrical panel.
8
2.
Open a tap in the water system to release the pressure.
8
3.
Remove the drain and priming plugs from the pump.
6
4.
Remove the pressure tank drain plug (if so equipped). Allow ample time
for the system to drain before re-installing the plugs.
WARNING - RISK OF ELECTRICAL SHOCK. Before servicing motor-operated
equipment, shut off the power at the main electrical panel and disconnect the
power supply from motor and accessories. Use safe working practices during
servicing of equipment.
LUBRICATION: The pump requires no lubrication. Refer to motor manufacturer's
instructions for motor lubrication.
CLEANING NOZZLE/VENTURI: Remove the 1/4" NPT plug (located directly
below the suction opening on the front of the casing) to access and clean the
nozzle/venturi.
REPLACING MECHANICAL SEAL (Figure 7):
CAUTION: Only duly qualified persons should perform maintenance on
electrical and/or mechanical devices.
Disassembly:
1.
Shut off the power to the pump at the main service panel.
2.
Open a tap in the water system to release the pressure.
3.
Remove the drain plugs (14) and priming plug (28) to allow the pump to
drain.
4.
Disconnect the tube (8) leading to the pressure switch (11).
5.
Remove the 4 bolts (9 and 19) and remove casing (1).
6.
Pry the diffuser (6) out of the casing using two screwdrivers for leverage.
7.
Remove the plastic cap on the end of the motor (not shown), insert a
screwdriver to prevent the shaft from turning, and unscrew the impeller
(7). If you cannot turn the impeller by hand, insert a flat object into the
impeller vane.
8.
Slip the mechanical seal (15) off the shaft and remove the seal plate (17).
9.
Remove the mechanical seal from the seal plate.
Reassembly:
1.
Clean all parts thoroughly before assembling.
2.
With soapy water, lightly lubricate the rubber cap on the mechanical seal
(15) and push it into the seal plate (17) using your thumbs only. Make sure
the smooth surface of the ceramic seat faces outward. NOTE: If the pump
will remain out of service for longer than one week, the seal components
must be installed dry (no lubrication).
3.
Put the seal plate back on the motor.
4.
With soapy water, lubricate the mechanical seal (15) and slip it onto the
shaft with the carbon ring toward the ceramic seat.
5.
Replace the impeller (7) and the diffuser (6).
6.
Replace the casing (1), making sure the gasket (16) is not damaged and
is in place.
7.
Reconnect the tube (8) to the casing and to the pressure switch (11).
8.
Reconnect the power.
9.
Prime the pump, start it, and check for leaks.
Motor will not start:
1) No power to pressure switch due to blown fuses, open switches, or
loose connections.
2) Pump pressure switch not closed.
MAINTENANCE
TROUBLESHOOTING

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Jp-050-cJp-075-cJp-100-c