Franklin Electric FNSGF Serie Manuel Du Propriétaire página 2

WARNING:
DO NOT RUN THE PUMP BEFORE PRIMING IT, SINCE THE SEAL AND IMPELLER COULD BE
PERMANENTLY DAMAGED.
a) ENGINE: Check the engine manual supplied with the pump for
instructions on engine preparation. In particular the unit is shipped
without oil which must be added before starting the engine.
b) PRIMING THE PUMP: A priming plug is provided in the top of
the casing to fi ll the pump with water. Once fi lled and the priming
plug replaced, the pump will prime. The priming time depends
upon the vertical and horizontal distance between the pump and
the water level. The pump should prime itself time after time as
long as the built-in check valve functions.
CAUTION:
DO NOT run the pump before fi lling the pump
case with liquid, as it may damage the seal.
c) PRIMING UNDER PRESSURE: Should it be necessary to
prime under pressure, place a check valve on the discharge line
of the pump and a pet cock or a ball type air bleeder in place of
the priming plug, or an air bleed line with a gate valve connected
to the discharge line. It will then be possible for the liquid to
remain in the discharge pipe and allow the pump to bleed off the
remaining air, thereby facilitating priming.
a) Engine: Check engine oil level at regular intervals. For
additional information refer to the engine instructional
manual.
b) For periodic maintenance the following procedures should
be followed:
DISASSEMBLY: Refer to diagram - Note: Not all pumps are
exactly as illustrated.
1) Remove bolts and remove casing.
2) Remove the diffuser (2) and seal ring (12) if they did not
come off with the casing.
3) Unscrew the impeller (3) (RH thread turn CCW).
4) Slide the sleeve (22) and seal (11) off the engine shaft.
5) Remove the bolts (24) and remove the adapter (4) from the
engine. Take care not to damage the seal seat.
6) Remove the seal seat by pressing out from the rear.
REASSEMBLY: Throughly clean all components fi rst.
1) Check that the rubber fl inger (10) is in position on the
engine shaft.
2) Apply liquid soap on the rubber cup of the seal seat and
press into the adaptor.
3) Bolt the adaptor to the engine. On model FNSGF5 with
internal bolts (as shown) ensure that the seal washers
(33) are in good condition replace if necessary, otherwise
leakage may occur.
4) Lightly oil the sleeve (22) and slip the rotating part of the
seal (11) onto the sleeve and place onto the engine shaft.
Ensure that the seal face is oriented towards the seal seat.
5) Thread the impeller onto the shaft (RH thread-CW)
6) Check the gaskets (16) and replace if necessary.
7) Place the diffuser (2) into position on the adapter and check
the condition of the sealing ring (12) replace if necessary.
8) Slide the casing over the diffuser and bolt into position.
OPERATION
d) STARTING THE PUMP: Never operate the pump dry as this
may damage the seal. If an exceptionally long suction line is
used, the water in the pump casing may become overheated or
vapour locked. Should this occur, replace the water in the casing
with cold water and continue priming.
e) DRAINING: Should the pump be subject to freezing
temperatures, it will be necessary to drain the pump completely.
To drain, remove the drain plug located at the bottom of the
front face of the pump casing and the priming plug and ensure
that the drain hole is not restricted. After all the water has been
drained, operating the pump for a few seconds will ensure that
the impeller is devoid of water (ensure that the suction line is
also devoid of water).
f) STORAGE OF PUMP: Drain liquid from pump to prevent
freezing. It is recommended that a good rust inhibitor be put in
the liquid end to prevent excessive corrosion. Be sure motor
is kept dry and covered. When restoring the use of the pump,
replace all plugs and ensure all connections are tightly sealed.
After a complete check is made, make the initial prime according
to directions under the section, Priming the Pump.
MAINTENANCE
Fig. 1
2