Franklin Electric Little Giant JPC Serie Manual De Instrucciones página 4

Relief valve
Soulagement soupape
Válvula de alivio
90° elbow/90° coude/90° codo
Priming plug
Bouchon d'amorçage
Tapón de cebado
Pressure switch
Manostat
Interruptor de presión
Drain plug
Bouchon de vidange
Tapón de drenaje
Suction pipe/Conduite d'aspiration/Tubería de succión
Vent pipe/Tuyau d'évent/Tubería de ventilación
Well seal/Joint de puits/Sello para pozo
Well/Puits/Pozo
Foot valve/Clapet de pied/Válvula de pie
Shallow Well - Inline Tank (with Foot Valve) • Puits peu profond, réservoir
en ligne (avec clapet de pied) • Pozo poco profundo, tanque en línea
(con válvula de aspiración)
MAINTENANCE
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 none. Refer to motor manufacturer's
instructions.
Replacing mechanical seal (Figure 11):
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 (12) and prime plugs to allow the pump to drain.
4. Disconnect the tube leading to the pressure switch.
5. Remove the 4 bolts (1) and remove casing (2).
6. Pry the diffuser (4) out of the casing using two slotted screwdrivers for
leverage.
7. For GE motors, remove the cap (5), insert a screwdriver to prevent the
shaft from turning, and unscrew the impeller (6). For A.O. Smith motors,
remove the rear cover, hold the shaft using a flat wrench inserted from
the side, through the opening in the end of the housing, and unscrew the
impeller. If you cannot turn the impeller by hand, insert a flat object into
the impeller vane.
8. Slip the rotating seal (7) off the shaft and remove the seal plate (8).
9. Remove the ceramic seal seat (9) from the seal plate.
Reassembly:
1. Clean all the parts thoroughly before assembling.
2. With soapy water, lightly lubricate the rubber cap on the ceramic seal (9)
and push it into the seal plate 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 rotating seal (7) and slip it onto the shaft
with the carbon ring toward the ceramic seat.
5. Replace the impeller (6) and the diffuser (4).
6. Replace the casing (2), making sure the gasket is not damaged and is in
place.
7. Reconnect the tubes to the casing and to the pressure switch.
8. Reconnect the power.
9. Prime the pump, start it, and check for leaks.
4
TYPICAL INSTALLATIONS (CONTINUED)
Service line
Conduite de service
Línea de servicio
Tank
Réservoir
Tanque
Drain
Drain
Drenaje
Control valve
Clapet de régulation
Válvula de control
Figure 9
Pressure switch
Manostat
Interruptor de presión
Service line
Conduite de service
Línea de servicio
Tank
Foot valve/Clapet de pied/Válvula de pie
Deep Well - Tank-Mounted System (Double Pipe with Foot Valve) • Puits
profond, système de réservoir monté (Installation avec conduites doubles
et clapet de pied) • Pozo poco profundo, sistema montado en tanque
(instalación con tubería doble, con válvula de aspiración)
2 7
12
6
TROUBLESHOOTING
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.
Pump fails to deliver water:
1) Pump not completely primed.
2) Suction lift is too great.
3) Foot valve is not submerged, buried in mud or plugged.
4) Restrictor valve is fully closed.
Pump loses prime:
1) Air leaks in suction line.
2) Well draws down too far and requires a tailpipe.
3) Faulty foot valve.
Pump delivers water but not at rated capacity:
1) Leaks in suction or discharge line.
2) Foot valve, suction line, impeller or nozzle are partially plugged.
3) Suction lift is greater than recommended.
4) Improper setting of control valve on deep well units.
5) Improper impeller rotation or low speed.
6) Motor is wired for improper voltage.
7) Low line voltage at motor.
Pump starts and stops too often:
1) Air leak in tank above the water level.
2) Incorrect setting on pressure switch.
3) Tank is water logged or incorrectly charged.
4) Foot valve is leaking or stuck open.
90° elbow/90° coude/90° codo
Control valve/Clapet de régulation/Válvula de control
Priming plug/Bouchon d'amorçage/Tapón de cebado
Drain plug
Bouchon de vidange
Tapón de drenaje
Return pressure hose
Suction pipe/Conduite d'aspiration/Tubería de succión
Vent pipe/Tuyau d'évent/Tubería de ventilación
Well seal/Joint de puits/Sello para pozo
Well/Puits/Pozo
Injector
Figure 10
1 9
4 8
Figure 11
5