Pump/Motor Installation - Franklin Electric ST Serie Manual Del Usuario

Please refer to the 8x8 Coupling Installation Procedure
located at the end of this manual for instructions on
assembling 8" pumps to 8" motors. After assembling the
pump to the motor, utilize the motor bolt kit to secure the
pump to the motor. Torque fasteners to the
specifi cations below:
4" MOTOR: 10 lb-ft (14 Nm)
6" MOTOR: 50 lb-ft (68 Nm)
8" MOTOR: 120 lb-ft (163 Nm)
Please refer to the AIM for the most up-to-date torque
information.
Position the motor lead along the length of the pump.
Place the cable guard on top of the motor lead. Pull motor
lead tight to ensure it is properly covered by the cable
guard. Use cable guard fasteners to secure cable guard to
pump. Torque cable guard fasteners to 20-23 lb-in (2.26-
2.60 Nm). NOTE: For 5" STS cable guard installation,
utilize cable guard clamp to secure top of cable guard.
Locate cable guard clamp on the neck of the top bowl and
tighten clamp fastener to 20-23 lb-in (2.26-2.60 Nm).
Cable guard clamp must be located on the neck of the top
bowl to ensure cable clamp's future position and pump's
maximum outside diameter.
PUMP AND MOTOR MUST BE ASSEMBLED
VERTICALLY. FAILURE TO ASSEMBLE VERTICALLY
MAY RESULT IN DAMAGE TO PUMP COUPLING
OR MOTOR SHAFT.
F. PUMP/MOTOR INSTALLATION
Thread the fi rst length of riser pipe into the pump
discharge and raise the pump and pipe into a vertical
position over the motor. Refer to the AIM manual for
installation recommendations. Be careful not to drag the
pump and motor assembly along the ground, or let it strike
other objects while placing the assembly over the well.
Lower the pump about 10 feet into the well and fasten the
cable to the riser pipe to prevent tangling and damage.
Continue to add lengths in the same manner until the
required pump setting is reached. Secure the cable to the
riser pipe at regular intervals.
TAKE GREAT CARE TO PREVENT DAMAGE TO
THE CABLE DURING INSTALLATION.
Where a bleeder-type air charging kit is used with a
hydro-pneumatic tank, install the tee and bleeder valve
before adding the last length of riser pipe. This will place
the bleeder valve about 20 feet below the well head.
4
C A U T I O N
C A U T I O N
Place the sanitary well seal, surface plate or other
adapter on the last length of riser pipe and pass the
submersible cable through the opening provided. Then
attach the discharge tee or elbow to the riser pipe.
Lower the riser pipe to its fi nal position and tighten the
well seal or other device to support the installation in
the well.
INITIAL START-UP & PERFORMANCE CHECK
Check the pump and well performance before making the
fi nal connection to the discharge system.
1. Install a pressure gauge and gate valve on the end of
the pipe. Close the valve.
2. Start the pump, check the pressure developed
against the closed valve. If the pressure is substantially
less than expected (please allow for the depth of the
water level), the pump may be running backward. To
change the rotation of a three-phase motor, interchange
any two leads.
3. Open the gate valve to produce a low fl ow. Open the
gate valve gradually until full fl ow is achieved.
4. Use a clamp-on amp meter to read the current, which
should approximate the full-load current given on the
motor nameplate, but must not exceed the service
factor rating of the motor. The service factor varies with
the model of the motor. Consult the factory if insuffi cient
information is given about Service Factor performance.
Check that the currents in the individual phases of a
three-phase system are approximately equal. Where there
is considerable diff erence between them, change all three
connections at the starter as shown below (so that rotation
remains the same) to obtain the most consistent readings.
Starter L1
cable (1) black
cable (2) red
cable (3) yellow
Then subtract the average of the readings from the highest.
The diff erence, expressed as a percent of the average,
must not exceed 5%. Note that the highest reading must
not exceed the maximum permissible for the motor.
EXAMPLE:
Phase 1
Phase 2
Phase 3
Average:
% Unbalance = (60 - 56.3) x 100
L2 L3
yellow red
black yellow
red black
54.0 amp
55.0 amp
60.0 amp
56.3 amp
56.3
= 3.7 x 100 = 6.6%
56.3