STA-RITE SJ Series User manual

OWNER’S MANUAL
INSTALLATION AND OPERATING INSTRUCTIONS
REPAIR PARTS LIST
60 CYCLE “SJ” and “SJB” SERIES
CENTRIFUGAL PUMP
©2001, Sta-Rite Industries, Inc. Printed In U.S.A. U125 (Rev. 8/31/01)
MODELS
HORSEPOWER 1/3 HP 1/2 HP 3/4 HP 1 HP 1-1/2 HP
CLOSE COUPLED SJBHB-61H SJBHC-61H SJBHD-62H SJBHE-63H SJBHF-51H
MOTOR MODELS SJHB-61H SJHC-61H SJHD-62H SJHE-63H SJHF-51H
– – SJBHD3-62H SJBHET-63H –
STA-RITE INDUSTRIES, INC., DELAVAN, WISCONSIN 53115
671 0294

R
o
t
a
t
i
o
n
Support suction pipe
as required
Support discharge
pipe as required
As close
as possible
4 x "D"
minimum
Foot
Valve
Pipe diameter
"D"
Straight run, short as
possible but at least 6
times pipe diameter ("D")
sloping away from pump
Short length of
straight pipe
after reducer
Important:
All connections must
be air tight
Eccentric
Reducer
Solid, level
base
Tee and
Priming Plug
Rotated Volute
Gate
Valve
Union
Discharge
to service
Recommended pump suction
and discharge connections
Vent
Plug
Priming
Plug
Street Elbow
Not recommended pump suction
and discharge connections
Elbow immediately
in front of pump
suction.
On the discharge avoid: 
Quick closing valves.
Small I.D. pipe.
Numerous fittings.
Misalignment.
Sharp turns in piping run.
High
lift
Pipe diameter "D"
insufficient size
Pipe submerged
less than 4 x "D"
will cause vortexing
Long suction
run
Concentric
Reducer
Use of excess fittings
means potential air leaks
Valve
Unsupported
Pipe
Concentric Reducer causes high
spots along the suction line resulting
in
air pockets.
684 0294
Figure 1
Figure 2
2

3
PIPING - GENERAL
Support both suction and discharge piping indepen-
dently at a point near the pump to avoid putting a strain
on the pump housing. Start all piping AT THE PUMP.
Increase pipe diameter at both the suction and dis-
charge by one (1) standard pipe size (minimum) to
obtain desired performance and flow rate. Refer to
Table I when sizing pipe for your pumping system.
NOTE: Do not use pipe with smaller diameter on the
suction side of pump.
Do not allow pump or any system component to freeze.
To do so will void warranty.
TABLE I
Pipe Tapping Recommended
Size On Pump Pipe Size
Suction Discharge Suction Discharge
1-1/4 1 1-1/2 1-1/4
1-1/2 1-1/4 2 1-1/2
2 1-1/2 3 2
SUCTION PIPE
Increase pipe size from pump tapping as show in Table
I.
Figure 1 (Page 2) depicts a recommended run of pipe
and fittings for the suction side of a centrifugal pump.
Please refer to this illustration when choosing pipe and
fittings for your suction connection.
IMPORTANT: All connections must be air tight!
Figure 2 (Page 2) depicts conditions that are NOT
DESIRABLE on the suction side of a centrifugal pump
and may cause problems in flow rate and priming.
Please look this illustration over carefully before choos-
ing pipe and fittings for your suction connection.
DISCHARGE PIPING
Increase pipe size from pump tapping as show in Table
I. Figure 1 (Page 2) depicts a recommended run of pipe
and fittings for the discharge. Install tee with priming
plug as close to pump as possible. Figure 2 (Page 2)
notes conditions that should be avoided. Please read
over carefully before making discharge connection.
PRIMING THE PUMP
A pump is primed when all air in the suction line and
pump volute has been evacuated and replaced with
water.
To Prime:
1. Close valve in discharge line.
2. Remove priming plug from tee and fill pump and suc-
tion line with water until water is flowing back out of
tee.
3. Replace priming plug.
4. Start pump and slowly open valve until desired water
flow is achieved.
NOTE: If water is not being pumped, turn off pump,
close valve, and repeat steps 1 thru 4.
If pump volute is rotated as shown in Figure 1 (Page 2),
loosen vent plug when priming to evacuate air
trapped inside volute and tighten when volute is
completely filled with water.
Never run pump against closed dis-
charge. To do so can boil water inside pump causing
hazardous pressure in unit, risk of explosion and possi-
bly scalding persons handling pump
Never run pump dry. Running pump with-
out water may cause pump to overheat, damaging seal
and possibly causing burns to persons handling pump.
Do not run the pump dry. This will dam-
age mechanical seal and void warranty.
Motor normally operates at high temper-
ature and will be too hot to touch. It is protected from
heat damage during operation by an automatic internal
cutoff switch. Before handling pump or motor, stop
motor and allow it to cool for 20 minutes.

4
Ground motor before con-
necting to electrical power
supply.
Failure to ground motor
can cause severe or fatal
electrical shock hazard.
Do not ground to a gas
supply line.
To avoid dangerous or
fatal electrical shock, turn
OFF power to motor before
working on electrical connec-
tions. Supply voltage must be
within ±10% of nameplate
voltage. Incorrect voltage can
cause fire or seriously damage
motor and voids warranty. If in
doubt consult a licensed electri-
cian. Use wire size specified in
Wiring Chart (below). If
possible, connect pump to a separate branch circuit with no
other appliances on it.
Wire motor according to diagram on motor nameplate. If
nameplate diagram differs from diagrams below, follow
nameplate diagram.
WIRING
1. Install, ground, wire and maintain this pump in accordance
with electrical code requirements. Consult your local build-
ing inspector for information about codes.
2. Provide a correctly fused disconnect switch for protection
while working on motor. Consult local or national electrical
codes for switch requirements.
3. Disconnect power before servicing motor or pump. If the
disconnect switch is out of sight of pump, lock it open and
tag it to prevent unexpected power application.
4. Ground the pump permanently using a wire of the same
size as that specified in wiring chart (below). Make ground
connection to green grounding terminal in pressure switch
marked GRD. or . If pressure switch is disconnected
from motor, connect the grounding lead to bare metal on
the motor frame by a solid copper wire as large as the cur-
rent carrying wires.
5. Connect ground wire to a grounded lead in the service
panel or to a metal underground water pipe or well casing
at least 10 feet long. Do not connect to plastic pipe or insu-
lated fittings.
6. Protect current carrying and grounding conductors from
cuts, grease, heat, oil, and chemicals.
WARNING
Hazardous voltage.
Can shock, burn, or
cause death.
Ground pump before
connecting to power
supply.
TABLE II - RECOMMENDED FUSING AND WIRING DATA - 60 CYCLE MOTORS
DISTANCE IN FEET FROM MOTOR TO METER
BRANCH 0’ 51’ 101’ 201’ 301’ 401’
MOTOR MAX. LOAD FUSE* TO TO TO TO TO TO
HP AMPERES RATING 50’ 100’ 200’ 300’ 400’ 500’
AMPS WIRE SIZE
SINGLE PHASE - 115/230 VOLT
1/3 9.4/4.7 15/15 14/14 14/14 10/14 10/14 6/14 6/12
1/2 9.4/4.7 15/15 14/14 14/14 10/14 10/14 6/14 6/12
3/4 12.2/6.1 20/15 12/14 12/14 10/14 8/14 6/12 6/12
1 14.8/7.4 20/15 12/14 12/14 8/14 6/14 6/12 4/10
1** 14.2/7.1 20/15 12/14 12/14 8/14 6/14 6/12 4/10
1-1/2 19.2/9.6 25/15 10/14 10/14 8/14 6/12 4/10 4/10
*A Fusetron is recommended instead of a fuse in any motor circuit.
** TEFC Motor.
Pull plug
straight
out from
terminal
board.
1.
1.
2.
2.
Plug in again
with arrow
on plug
pointing to
'115 Volts'.
230 Volts
115 Volts
230 Volts
115 Volts
Ground
Screw
3962 0401 A W/GRND WIRE
115 V
230 V
230 Volt to 115 Volt Conversion. Move plug to change voltage.
Ground
Screw
230V
115V
230V
115V
A
A
L2
L2
L1
L1
230V
115V
A
A
L2
L2
L1
L1
230V
115V
Power Supply
Wires
230 Volt to 115 Volt Conversion. Move plug to change voltage.
Figure 3 – Wiring Connection Diagram
ELECTRICAL
Motor Terminal Block Wiring (as viewed from rear of motor, canopy removed)

5
PUMP SERVICE
This centrifugal pump requires little or no service other
than reasonable care and periodic cleaning. Occasion-
ally, however, a shaft seal may become damaged and
must be replaced. The procedure as outlined below will
enable you to replace the seal.
NOTE: Pumps use mechanical seals with a rubber
seat ring or a sealing O-Ring. THESE SEALS ARE
COMPLETELY INTERCHANGEABLE.
CAUTION: The highly polished and lapped faces of this
seal are easily damaged. Read instructions and handle
the seal with care.
Some models are equipped with an impeller screw,
which has a left hand thread. Before unscrewing the
impeller, remove the impeller screw.
REMOVAL OF OLD SEAL
1. After unscrewing impeller, carefully remove rotating
part of seal by prying up on sealing washer, using
two screwdrivers (see Figure 4A). Use care not to
scratch motor shaft.
2. Remove seal plate from motor and place on flat sur-
face, face down. Use a screwdriver to push ceramic
seat out from seal cavity (see Figure 4B).
INSTALLATION OF FLOATING SEAT (Figure 4C)
1. Clean polished surface of floating seat with clean
cloth.
2. Turn seal plate over so seal cavity is up, clean cavi-
ty thoroughly.
3. Lubricate outside rubber surface of ceramic seat
with soapy water and press firmly into seal cavity
with finger pressure. If seat will not locate properly in
this manner, place cardboard washer over polished
face of seat and press into seal cavity using a 3/4”
socket or 3/4” piece of standard pipe.
4. DISPOSE OF CARDBOARD WASHER. Be sure
polished surface of seat is free of dirt and has not
been damaged by insertion. Remove excess soapy
water.
INSTALLATION OF ROTATING
PART OF SEAL UNIT (Figure 4D)
1. Reinstall seal plate using extreme caution not to hit
ceramic portion of seal on motor shaft.
2. Inspect shaft to make sure that it is clean.
3. Clean face of sealing washer with clean cloth.
4. Lubricate inside diameter and outer face of rubber
drive ring with soapy water and slide assembly on
motor shaft (sealing face first) until rubber drive ring
hits shaft shoulder.
5. Screw impeller on shaft until impeller hub hits shaft
shoulder. This will automatically locate seal in place
and move the sealing washer face up against seat
facing. Reinstall impeller screw (if used).
7. Connect current carrying conductors to terminals in pres-
sure switch. When replacing motor, check wiring diagram
on motor nameplate against diagram above. If they are not
the same, follow the diagram on the motor.
IMPORTANT: PUMP IS SHIPPED FROM FACTORY
WITH MOTOR WIRED FOR 230 VOLTS. IF POWER
SUPPLY IS 115 VOLTS, REMOVE MOTOR CANOPY
AND RECONNECT MOTOR AS SHOWN IN FIGURE 3.
DO NOT TRY TO RUN MOTOR AS RECEIVED ON 115
VOLT CURRENT.
8. Motor has automatic internal thermal overload protection. If
motor has stopped for unknown reasons, thermal overload
may restart it unexpectedly, which could cause injury or
property damage. Disconnect power before servicing
motor.
9. If this procedure or the wiring diagrams are confusing, con-
sult a licensed electrician.
Seal Plate
Mechanical seal
rotating half
Mechanical seal
stationary half
A-Seal removal-rotating half B-Seal removal-stationary half C-Stationary half installation D-Rotating half installation
T
u
r
n
o
v
e
r
Polished
surface Rubber
surface
Cardboard
washer
(supplied w/seal)
3/4" socket
or pipe
Sealing
face
Rubber drive
ring
Impeller
Shaft
shoulder
685 0294
FIGURE 4
ELECTRICAL (Continued)
SERVICE

6
REPAIR PARTS LIST – “J” SERIES - HIGH HEAD
Key Part No. SJHB-61H SJHC-61H SJHD-62H SJHE-63H SJHF-51H
No. Description Used 1/3 HP 1/2 HP 3/4 HP 1 HP 1-1/2 HP
1* Motor - 115V, Single Phase 1 AS100BHL – – – –
1* Motor - 115/230V, Single Phase 1 – A100CLL A100DLL A100ELL A100FLL
2 Capscrew - 3/8 - 16 x 1-1/4” Lg. 2 U30-75ZP U30-75ZP U30-75ZP U30-75ZP U30-75ZP
3 Water Slinger 1 17351-0009 17351-0009 17351-0009 17351-0009 17351-0009
4 Seal Plate 1 C3-178 C3-178 C3-178 C3-178 C3-178
5 Gasket 1 C20-121 C20-121 C20-121 C20-121 C20-121
6 Shaft Seal 1 U109-6A U109-6A U109-6A U109-6A U109-6A
7 Impeller - Single Phase 1 C105-92PN C105-92PN C105-92PM C105-92PL C105-92PB
8 Volute Assembly - With Wear Ring 1 C101-284E C101-284E C101-284E C101-284E C101-284E
8A Wear Ring (1) C23-27 C23-27 C23-27 C23-27 C23-27
9 Capscrew - 3/8 - 16 x 1-1/4” Lg. 2 U30-75ZP U30-75ZP U30-75ZP U30-75ZP U30-75ZP
10 Base - With Motor Pad 1 J104-9 J104-9 J104-9 J104-9 J104-9
10A Motor Pad (1) C35-5 C35-5 C35-5 C35-5 C35-5
11 Pipe Plug Hex Head - 1/4” NPT 3 U78-941ZPV U78-941ZPV U78-941ZPV U78-941ZPV U78-941ZPV
*For repair or service to motors, always give the motor Model Number and any other data found on the Motor Model Plate.
12
3
4
56
8A
7
8
11
10
10A
9
683 0294

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TROUBLE - CAUSES AND REMEDY
TROUBLE AND CAUSE REMEDY
FAILURE TO PUMP
1. Pump not properly primed. 1. Make sure pump casing and suction line are full of water.
See priming instructions.
REDUCED CAPACITY AND/OR HEAD
1. Air pockets or leaks in suction line. 1. Check suction piping.
2. Clogged impeller. 2. Remove and clean.
PUMP LOSES PRIME
1. Air leaks in suction line. 1. Check suction piping
2. Excessive suction lift and operating 2. Move pump nearer to water level.
too near shut-off point.
3. Water level drops while pumping, 3. Check water supply. Add length of pipe to suction
uncovering suction piping. to keep submerged end under water.
MECHANICAL TROUBLES AND NOISE
1. Bent shaft and/or damaged bearings. 1. Take motor to authorized motor repair shop.
2. Suction and/or discharge piping not 2. See that all piping is supported to relieve strain
properly supported and anchored. on pump assembly.
REPAIR PARTS LIST – “JB” SERIES - HIGH HEAD
SJBHB-61H SJBHC-61H SJBHD-62H SJBHE-63H SJBHF-51H
Key Part No. – – SJBHD3-62H SJBHET-63H –
No. Description Used 1/3 HP 1/2 HP 3/4 HP 1 HP 1-1/2 HP
1* Motor - 115V, Single Phase 1 AS100BHL – – – –
1* Motor - 115/230V, Single Phase 1 – A100CLL A100DLL A100ELL A100FLL
1* Motor - 115/230V, Single Phase TEFC 1 – – – J218-892A –
1* Motor - 208-230/460V, Three Phase 1 – – AP100DL – –
2 Capscrew - 3/8 - 16 x 1-1/4” Lg. 2 U30-75ZP U30-75ZP U30-75ZP U30-75ZP U30-75ZP
3 Water Slinger 1 17351-0009 17351-0009 17351-0009 17351-0009 17351-0009
4 Seal Plate 1 C3-178 C3-178 C3-178 C3-178 C3-178
5 Gasket 1 C20-121 C20-121 C20-121 C20-121 C20-121
6 Shaft Seal 1 U109-6A U109-6A U109-6A U109-6A U109-6A
7 Impeller 1 C5-256BA C5-256BA C5-256BAA C5-254BA C5-254BC
7A Impeller Screw - Three Phase** 1 – – C30-14SS – –
8 Volute Assembly - With Wear Ring 1 C101-284E C101-284E C101-284E C101-284E C101-284E
8A Wear Ring (1) C23-27 C23-27 C23-27 C23-27 C23-27
9 Capscrew - 3/8 - 16 x 1-1/4” Lg. 2 U30-75ZP U30-75ZP U30-75ZP U30-75ZP U30-75ZP
9 Socket Head Screw† 2 – – – U30-104ZP –
10 Base - With Motor Pad 1 J104-9 J104-9 J104-9 J104-9 J104-9
10A Motor Pad (1) C35-5 C35-5 C35-5 C35-5 C35-5
11 Pipe Plug Hex Head - 1/4” NPT 3 U78-941ZPV U78-941ZPV U78-941ZPV U78-941ZPV U78-941ZPV
*For repair or service to motors, always give the motor Model Number and any other data found on the Motor Model Plate.
**Model Number SJBHD3-62H only.
† Model Number SJBHET-63H.

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