Franklin Electric FVJ05CI Manual Del Propietário página 8

MAINTENANCE
Disassembly
Pressure Switch Adjustments
1. Turn differential nut clockwise to
increase the pressure difference
between CUT-IN (pump on) and CUT-
OUT (pump off) by raising the CUT-
OUT pressure.
2. Turn range nut clockwise to simulta-
neously increase both the CUT-IN and
CUT-OUT pressure equally.
3. Use a pressure gauge to determine
when the desired pressure settings
are achieved.
NOTE: The pressure port is in the top of the pump near the discharge.
Adjustment Example
Starting CUT-IN/CUT-OUT (psi)
30 / 50
30 / 50
Disassembly
1. Remove power from the pump.
2. Disconnect the pressure line from the pressure switch
NOTE: Plumbing pipes do not need to be disconnected if installed properly.
3. For 1/2 HP and 3/4 HP pumps:
• Remove the bolts holding the motor bracket to its foundation.
• Remove the bolts holding the motor to the pump case.
• Then take off the motor and the bracket assembly.
4. For 1 HP and 1-1/2 HP pumps:
• Remove the bolts holding the seal plate to the pump case.
• Remove the motor and seal plate as an entire unit.
5. Unscrew the diffuser from the seal plate to reach the impeller.
NOTE: The impeller and wear ring must be removed to reach the shaft seal.
6. Clean the seals and the sealing surfaces in the pump case.
• Lightly lubricate the rubber part of the seals with silicone grease to aid in the assembly.
IMPORTANT: Do not lubricate the carbon or ceramic faces on the shaft seal.
7. Reassemble in reverse order.
8. Refer to "Operation" on page 6
8
1
Nut Adjustment
Clockwise turn of differential nut
Clockwise turn of range nut
to prime the pump before starting.
2
Final CUT-IN/CUT-OUT (psi)
30 / 60
40 / 60