Installation With Positive Suction Head; Operation; Priming Instructions; Maintenance - Goulds Pumps BF03S Manuel D'installation Et D'utilisation

3. A manual disconnect switch should be located close to
the pump where required by code.
4. It is recommended this pump and motor be grounded in
accordance with prevailing electrical codes. Provisions
are provided for attaching ground wires to both motor
and pressure switch. Ground screws are located under
motor end cover and in the pressure switch.
IMPORTANT: After connecting wiring, DO NOT RUN
PUMP until it has been filled to priming opening with
clean water.
Connect power from a dedicated grounded circuit to the
Line terminals on the pressure switch. The connection
between the switch and the motor is made at the factory.
The circuit breaker should be OFF when the connections
are made by a qualified electrical technician.
INSTALLATION WITH POSITIVE
INSTALLATION WITH POSITIVE
SUCTION HEAD
SUCTION HEAD
On installations where the pump takes its water from a
source of supply that is at a higher elevation than the
pump, the pump operates under what is known as positive
suction head.
When the BF03S is used on this type of installation, install
a partially closed ball valve in the suction line to create
suction head at the pump.
To determine if a suction lift has been created, disconnect
tube from air volume control. With pump running, air
should be taken into tube. This can be determined by
placing finger over end of tube. When reconnecting tubing,
be careful not to cross the threads. Be sure the joint is air
tight.

OPERATION

OPERATION
After making absolutely sure that the
WARNING
power is OFF, remove the motor cover.
Check that the impeller turns freely. Turn the centrifugal
switch mechanism by hand or with a screwdriver. If the
shaft turns freely, reinstall the cover. On a new pump, if
the pump is bound the motor may have been damaged in
shipping. Return it to the place where purchased.

PRIMING INSTRUCTIONS

Prime the pump by removing the priming plug on the
motor adapter and filling the casing with water. It should
hold about 3 quarts. Replace the priming plug and open
the faucet closest to the pump. See Figure 1.
Pump is now ready to be started. Check all plumbing
connections and then turn power ON.
Pump should pick up prime within a few minutes. The
longer the suction pipe the longer it will take to prime. If
the pump does not prime, turn power OFF and check for
air leaks on suction piping and on the Air Volume
Control tubing and fittings. Repair all air leaks, refill
casing with water and start pump by turning power ON.
After the pump is fully primed, open a few more faucets.
When all air is expelled from the plumbing and the water
flows steadily close the faucets. Pressure should build up
to 40 psi and the switch should turn the pump OFF. The
pump is designed to run continuously whenever water is
being used and to turn OFF only when water usage
(flow) stops. If the switch does not go off it may require a
minor adjustment.
The pressure switch adjustment must be
DANGER
made with power ON and the pump motor
running. This adjustment should be made only by
qualified technicians familiar with working on "hot"
electrical devices. Remove the switch cover and locate
the tallest and largest spring/nut assembly. Turn the
hex nut counterclockwise to lower the cut-out pressure.
The safest tool to use is a 3
shaft, next best is a 3 ⁄ " box end wrench. One full turn
8
changes the setting 2 psi. After adjusting the OFF setting
it will be necessary to run through a cycle to insure that
the pump runs continuously when you use water. Do this
by opening 2 - 3 faucets for a few minutes and then close
them. Pump should go to approximately 40 psi and turn
OFF. Reinstall the switch cover and tighten the screw.
Note: extreme seasonal variations in the well water level
may require adjustments to the switch to prevent rapid
cycling or to allow the pump to shut off. The switch
adjustment instructions are on a label inside the switch
cover.

MAINTENANCE

MAINTENANCE
MECHANICAL SEAL
The mechanical shaft seal in this pump is not adjustable. If
a continuous and steady leak occurs around the shaft it is
an indication that the mechanical seal needs replacing. To
replace seal, observe the following instructions. See Repair
Parts page for part identification/nomenclature.
REPLACEMENT OF MECHANCIAL SEAL
To Dismantle:
Turn off power on pump motor branch circuit and
disconnect line wires to pressure switch. Close valve in
house piping. Drain pump. For procedure, see Seasonal
Service Instructions.
Remove 8 hex bolts holding motor adapter to pump casing
and lift off rotating element assembly including motor and
motor adapter.
Place motor and rotating element assembly on table, bench
or other convenient working space and remove guide vane
bolts and take off guide vane. See figure 4.
A.O. SMITH MOTORS - Remove motor end cover. Insert
7 ⁄ " open end wrench, under switch mechanism onto flats
16
on motor shaft. While holding the shaft against rotating,
turn the impeller counterclockwise. The impeller should
turn completely off the shaft in this manner. See figure 2.
Using two screwdrivers, pry out rotary seal assembly. See
figure 3.
Using two small screwdrivers pry out the stationary seal
and Buna cup.
3 ⁄
⁄ " nut driver with a hollow
8
Figure 2
"
8
3