Maintenance Lubrication - Franklin Electric BT4 Serie Guide D'utilisation

trapped in the unit). Once the pump is operating, fully
open the discharge valve and a system outlet, letting
the pump operate until the water is running clear. If after
a reasonable time your water continues to run sandy
or dirty, check with a water systems professional for
additional assistance. No further priming should be
needed unless the pump is drained for repair or storage,
there is a leak in the suction plumbing, or there is a
failure of the system's foot or check valve.
ADJUSTING PUMP SO SYSTEM DEMAND IS NOT
MORE THAN SYSTEM SUPPLY
Booster pumps are typically used to increase municipal
water pressure anywhere from 10 psi to 70 psi above
what is being supplied by the water utility. For the pump
to operate properly as it boosts the municipal water to
the desired pressure, a consistent and steady flow of
water is required. The booster pump will fail prematurely
if it is set to operate at a point beyond what can
be supplied.
PROCESS TO ENSURE PUMP IS RECEIVING
ENOUGH WATER TO MEET DEMAND
1. Install a shut-off valve in the plumbing near the
discharge of the pump.
2. Close the valve, but make sure that the supply
water is allowed to freely flow into the pump
without restriction.
3. Turn on the pump and begin opening the
discharge's shut-off valve.
4. Continue opening the discharge valve until
cavitation noise is heard coming from the pump.
Cavitation (which can destroy the pump over time),
often sounds like there is gravel inside the pump.
STOP opening the discharge valve once cavitation
is heard.
5. Slowly close the discharge valve until the cavitation
is no longer heard.
6. The pump is now adjusted so that the system
demand will not exceed what can be supplied.
MAINTENANCE
LUBRICATION
The pump requires only water for lubrication and must
never be run dry.
6
WA R N I N G
Hazardous voltage.
Can shock, burn, or
cause death.
Ground pump before
connecting to power
supply. Disconnect
power before working
on pump, motor
or tank.
DRAINING
NOTICE: Disconnecting the pump will not necessarily
drain all other parts of the piping system. If there are
any concerns with the proper procedure or necessity of
draining the suction plumbing, contact a water systems
professional.
All piping and water tanks exposed to freezing weather
should be drained. If there are any concerns with the
proper procedure to drain the systems pressure tank,
contact the tank manufacturer for assistance.
SERVICE AND DISASSEMBLY (Figure 6)
Torque settings: Coupling set screws – 75 in-lbs
Motor to pump end bolts – 115 in-lbs
Pump discharge head – 75 ft-lbs
Pump shaft nut – 30 in-lbs
Shaft screw - (3-phase only) 150 in-lbs
Tools required: 5/32" Allen wrench
3/16" Allen wrench (three-phase)
7/16" open end wrench
1/2" wrench
9/16" wrench (qty. 2)
5/8" open end wrench
1-1/8" open end wrench
1/4" nut driver
Vise grips
Workbench with vise
Large pipe wrench
Strap wrench
Snap ring pliers
Rubber mallet
Flat blade screwdriver
W A R N I N G
Before
disconnecting pump, be sure
fuse box leads are disconnected
or power is turned off. After
reassembling the pump, refer to
priming instructions before
running.
W A R N I N G
Hazardous voltage
can shock, burn or cause death.
Disconnect power to pump
before servicing unit.