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2

WIRING CONNECTIONS

NOTICE: 

Clamp the power cable to prevent strain on the

terminal screws.

Refer to motor wiring diagram on pump motor for proper motor
wiring connection.

1. Install, ground, wire and maintain this pump in

compliance with the National Electrical Code (NEC) or the
Canadian Electrical Code (CEC) and with all local codes
and ordinances that apply. Consult your local building
inspector for local information.

2. Make sure that the voltage, frequency and phase (single

phase or three phase) of the power supply agree with that
stamped on the motor nameplate. If in doubt, check with
the power company.

3. Some models are equipped with three phase motors. 

Three phase motors require magnetic starters and can
run in either direction, depending on how they are
connected to the power supply.

To Check For Proper Rotation – 3 Phase Motors

NOTICE: 

Some models are equipped with three phase motors.

Three phase motors require magnetic starters and can run in
either direction, depending on how they are connected to the
power supply.

Risk of electrical shock.

1. Be sure power is disconnected to motor when working on

electrical connections.

2. Remove the cap over the motor shaft. Momentarily start

pump. If hookup is correct, the shaft will rotate clockwise.

3. If rotation is not clockwise, reverse any two leads to the

starter. The rotation will now be correct.

GROUNDING THE MOTOR

Ground the pump permanently using a wire of size and type
specified by local or National Electrical Code.

MAINTENANCE

Pump Disassembly

Hazardous voltage.

Can shock, burn or cause

death. Disconnect power to pump before servicing.

Tools required:

1. 7/16” open end wrench (2 required).

2. Flat blade screwdriver with insulated handle.

3. Work bench with vise recommended.

4. Pliers or similar tool.

5. Pipe wrench.

Impeller Stack Changeout

(See Figure 1)

Remove pump from service and mount vertically in vise (if
available) motor side down. Hold at center of motor. It may be
desirable to wrap motor with a shop rag to protect outside
surface.

Proceed as follows:

1. Attach pipe wrench to flats on discharge connection and

turn clockwise to remove (left hand threads). 

2. Remove cap over shaft end. Hold shaft with a wrench on

the shaft flats.

Disconnect 
from
po

w

er 

so

u

rce.

Hold shaft flats.

2

Impeller
Stack

Snap
Ring

Remo

v

w

ith

Counter-clockwise

rotation. 

3

4

1211 0

8

94 GS

1

Discharge
Connection

Remo

v

w

ith

clockwise

rotation. 

Figure 1 – Impeller stack changeout.

TABLE I - RECOMMENDED FUSING AND WIRING

Wire Length

Motor

Volts/

S.F.

Branch Fuse

0’-50’

51-100’

101-200’

201-300’

H.P.

Phase

Amps

Rating Amps

AWG Wire Size

1

208-230/1

8.5-10.4

15

14

14

14

12

1

208-230/460/3

4.8/2.4

15/15

14/14

14/14

14/14

14/14

1-1/2

208-230/1

10.5-11.2

15

12

12

12

10

1-1/2

208-230/460/3

6.0/3.0

15/15

14/14

14/14

14/14

14/14

Summary of Contents for SGS327

Page 1: ...n damage internal parts overheat pump which can cause burns to people handling or servicing pump and will void warranty Do not pump chemicals or corrosive liquids with pump Hazardous Pressure A High pressure discharge stream is dangerous To avoid injury DO NOT stand in front of the discharge stream B BE SURE that the pump suction pipe pressure plus the pump discharge pressure does not exceed the p...

Page 2: ...lockwise reverse any two leads to the starter The rotation will now be correct GROUNDING THE MOTOR Ground the pump permanently using a wire of size and type specified by local or National Electrical Code MAINTENANCE Pump Disassembly Hazardous voltage Can shock burn or cause death Disconnect power to pump before servicing Tools required 1 7 16 open end wrench 2 required 2 Flat blade screwdriver wit...

Page 3: ...alling stack Mechanical Seal Changeout refer to Figures 1 and 2 This procedure is best completed with the pump held in a vertical position motor down First complete Disassembly instructions 1 through 5 under Impeller Stack Changeout see Figure 1 Page 2 5 Remove 4 capscrews holding pump body to motor 6 Unscrew pump shell from pump body turning clockwise left hand threads 7 Remove mechanical shaft s...

Page 4: ...py water Place cardboard washer over polished face of seat and press into seal cavity using a 3 4 socket or a piece of 3 4 standard pipe D Be sure polished surface of seat is free of dirt and has not been damaged by insertion Re move excess soapy water Dispose of card board washer 11 Installation of rotating half and spring A Reinstall pump body on motor using extreme caution not to hit ceramic po...

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