Ceco Sethco 2500 Series User manual

Magnetic Drive, Seal-less Chemical Pumps
OP E R A T I O N M A N U A L
SELF PRIMING
•PMSP-2505
•KMSP-2505
•PMSP-2510
•KMSP-2510
•PMSP-2525
•KMSP-2525
•PMSP-2550
•KMSP-2550
END SUCTION
•PM-2505
•KM-2505
•PM-2510
•KM-2510
•PM-2525
•KM-2525
•PM-2550
•KM-2550
2500 series
END SUCTION AND SELF PRIMING MODELS

SAFETY RULES
FOR SETHCO
PUMPS
700 Emlen Way • Telford, PA 18969
Phone: [phone]
Email: [email protected]
www.cecoenviro.com
CONGRATULATIONS! You have just purchased a Sethco Pump, a quality industrial product manufactured to
exacting standards.
To insure prolonged life of your purchase, please take a few minutes to review the operating instructions and
become familiar with the pump.
Thank you for choosing a Sethco product. We look forward to serving your future requirements for quality
industrial
corrosion resistant pumps and filter supplies.
1. KEEP BYSTANDERS AWAY -All unauthorized
persons should be kept a safe distance from work
area.
2. WEAR APPROPRIATE PROTECTIVE APPAREL.
Such as gloves, aprons, footwear and
faceshields, etc. when installing, operating or
maintaining the unit.
3. KEEP HANDS AND FINGERS FROM
IMPELLER.
4. KEEP FACE AWAY -Don't look into hose, pump
discharge, or suction.
5. AUXILIARY EQUIPMENT -Hoses must be
suitable for the chemical to be transferred. They
must also be selected to safely contain the
pressure at the operating temperature.
Clamps must not be attacked by any corrosive
environment or splashing.
6. DO NOT USE FOR -any other application unless
written permission is obtained from the factory.
7. ALL CONNECTIONS -should be checked for
secure and leakproof fit.
8. NEVER -Turn pump on unless valves are open.
9. When wiring motor, follow all electrical safety
codes.
10. Always disconnect power source before
performing work on or near the motor or its
connected load. Lock it in the open position and
tag it to prevent unexpected application of power.
Failure to do so could be fatal.
11. Avoid touching exterior of motor. It may be hot
enough to be painful or cause injury. With modern
motors this condition is normal if operated at rated
load and voltage - modern motors operate at
higher temperatures.
12. Protect the power cable from sharp objects.
Do not kink power cable and never allow the
cable to come in contact with oil, grease, hot
surfaces, or chemicals.
13. Do not handle the unit with wet hands or when
standing in water as electrical shock could occur.
Disconnect main power before handling unit for
ANY REASON!
14. Isolate pump by closing suction and discharge
valves prior to any maintenance. Attach lockouts
to valves to prevent accidental opening.
15. No piping or foundation strains on pump are
permitted. Any strain will cause misalignment and
early failures.
16. INSTALLATION - OPERATION - MAINTENANCE
of this equipment must be performed by trained
and qualified personnel. Unauthorized handling of
this equipment can be hazardous.

TERMS AND CONDITIONS OF SALE
The terms and conditions stated
below and on the face of any Met
Pro Corp., Sethco Div. (referred to
below as Sethco) quote or order
form govern, and any order is
accepted subject thereto. These
terms and conditions supersede any
terms and conditions on buyer's
quote or order form or attachments
thereto which are inconsistent with
the provisions hereof.
Prices:All prices and specifica-
tions are subject to change without
notice. Prices charged will be those
in effect at time of shipment.
Orders: All orders are subject to
acceptance by Sethco at its home
office in Hauppauge, New York. All
errors, clerical or other-wise, are
subject to correction. When total net
billing for material is less than the
minimum charge in effect at the time
of shipment, invoicing will be made
at the minimum charge. Acceptance
of all orders is subject to credit
approval.
Taxes: Sethco's prices do not
include sales, use or excise taxes.
Consequently, in addition to the
price quoted, the amount of any
present or future taxes based on
sale, use, manufacture or trans-
portation shall either be paid by the
buyer or the buyer shall provide
Sethco with an acceptable exemp-
tion certificate . Terms:Terms of
payment are net 30 days, F.O.B.
Hauppauge, New York, unless oth-
erwise stated on the face of any
quote or order form.
Shipments:Scheduled shipping
dates are approximate. Title to and
risk of loss for the material shall
pass to the buyer upon delivery
thereof by Sethco to the carrier or
delivery service.
Cancellation—All orders upon
acceptance by Sethco cannot be
canceled without Sethco's written
consent, and then only upon pay-
ment to Sethco of reasonable and
proper cancellation charges.
Returns: No goods may be
returned unless authorization in writ-
ing has been received from Sethco's
home office. After authorization is
received, all goods must be
returned, freight prepaid, to our
home office in Hauppauge, New
York.
Warranty: Sethco warrants
(unless otherwise written on the face
of any quote or order form) that
products of Sethco's manufacture
are free of defects in material or
workmanship. Any part, except as
indicated below, proven to be defec-
tive within one year from date of
shipment, after inspection by and to
the satisfaction of Sethco, will be
repaired or replaced free of charge,
F.O.B. Hauppauge, New York. on
return of such claimed defective part
as outlined under "Returns" above.
Excluded are Carboy and Drum
pumps, which are warranted for 180
days. Also excluded are all used
and/or reconditioned items and parts
which carry no warranty, and all nor-
mal wearing parts such as, but not
limited to, shafts, mechanical seals,
bearing, gaskets, etc.
The liability of Sethco under this
warranty,whether the claim Is based
on contract or negligence, shall in no
case exceed the cost of repairing or
replacing the part as herein provid-
ed, and upon expiration of the war-
ranty period, all such liabilities shall
terminate.
Sethco assumes no liability for
equipment which has been tam-
pered with or altered in any way,or
for consequential loss or damage of
any kind, and the buyer, by accept-
ance of such equipment, assumes
all liability for the consequences of
its use or misuse by the buyer, his
employees, or others.
UNLESS THE BUYER HAS
FURNISHED SETHCO WITH COM-
PLETE INFORMATION REGARD-
ING THE INTENDED APPLICA-
TION AND SERVICE REQUIRE-
MENTS OF THE ITEMS
ORDERED, SETHCO GUARAN-
TEES ONLYTHE IDENTITY OF
THE MATERIALS USED IN THE
CONSTRUCTION OF THE EQUIP-
MENT SHIPPED.
Within the meaning of this war-
ranty a defect in any part of the
equipment shall not operate to con-
demn the entire unit when such part
is capable of being renewed,
repaired or replaced. Sethco
assumes no field expense for serv-
ice or parts on equipment without
written authority from Sethco.
Sethco does not warrant motors,
gauges, electrical control equipment
or other products not manufactured
by Sethco, such being subject to
warranties as may be given by their
respective manufacturers.
The foregoing warranty is made
in lieu of all other warranties, guar-
antees, obligations or liabilities,
expressed or implied, by Sethco or
its representatives. All statutory or
implied warranties, other than of
title, are hereby expressly negated
and excluded. All illustrations and
provisions in specifications are
descriptive and are not intended as
warranties.
Since the policy of Sethco is one
of continual improve-ment, we
reserve the right to change design or
materials at any time, without giving
notice or creating any obligation to
700 Emlen Way • Telford, PA 18969
Phone: [phone]
Email: [email protected]
www.cecoenviro.com
Now ORDER Sethco products ONLINE at www.sethco.com

For high volume transfer
of most acids, alkalies, caustics,
bleaches, sea water,solvents
and many other harsh environments
PD-340-03
HIGH VOLUME
END SUCTION
MAGNETIC DRIVE
SEAL-LESS PUMP
PARTS LIST
OPERATION INSTRUCTIONS
June 1, 2002
700 Emlen Way • Telford, PA 18969
Phone: [phone]
Email: [email protected]
www.cecoenviro.com
WARNING: PUMP CONTAINS POWERFUL
MAGNETS. EXTREME CARE MUST BE USED
DURING ASSEMBLY AND
DISASSEMBLY TO AVOID INJURY.

YOU WILL NEED THE FOLLOWING TOOLS
1. 3/8" ratchet
2. 3/8" 6" length extension
3. Torque wrench
4. 9/16" socket
5. 3/4" socket
6. 3/4" open end wrench
7. 1/8" hex allen wrench
8. 7/16" deep socket
9. Teflon paste (optional)
10. Sethco removal tool (part number: 914P102543-680
(optional)
INSTALLATION
Allow sufficient head room and floor space for
proper inspection and maintenance.
PIPING
All piping must be supported independently of the pump.
The piping should always line up naturally with the
pump. Never draw or force the piping to the suction or
discharge of the pump. All installations should be proper-
ly designed for changes in ambient operating tempera-
tures. Omission of this could result in severe strain
transmitted to the pump.
The piping should be as short and direct as possible.
Avoid all unnecessary elbows, bends, and fittings, as
they increase friction losses in the piping.
SUCTION PIPING
The length of the suction pipe should be as short as
possible.
SUCTION PIPING MUST BE AIR TIGHT
DISCHARGE PIPING
A valve in the discharge line should be of a design to
allow throttling or flow control. Centrifugal pumps should
never be throttled on the suction side.
INITIAL START UP
On first start up, and any time motor is reconnected to
an electrical outlet, check direction of motor
rotation as follows:
1. Fill pump with liquid as directed in priming
instructions below.
2. Turn switch "on" and then "off" immediately.
Observe rotation. It should be in the direction of
the arrow on motor or pump (counterclockwise
when looking at pump end of motor).
3. To reverse rotation refer to instructions on motor.
PRIMING AND STARTING
1. Flooded Suction -Open all valves in suction
and discharge lines. When pump is completely
filled with liquid, turn motor on.
Sometimes, especially when pumping higher
specific gravity liquids, the pump cannot start
pumping with an open discharge line. To over
come this, simply close the discharge valve after
the pump is filled with liquid, then turn on motor.
Wait several seconds for pressure to build up,
then slowly open discharge valve to desired flow.
2. Non-Flooded Suction -Place the suction line
under the surface of the liquid to be pumped.
Slowly fill the pump and suction line from the
discharge. Make sure that no entrapped air
remains. Close the discharge valve. Turn on
motor. Wait several seconds for pressure to build
up. Slowly open discharge valve to desired flow.
TROUBLESHOOTING
A. Pump will not prime or insufficient liquid
delivered:
1. Air leakage in suction piping.
2. Suction lift too high or insufficient suction
pressure.
3. Impeller, casing, suction pipe or strainer
plugged with solids
4. Wrong rotation.
5. Magnetic couple slipping.
B. Not enough pressure:
1. Speed too low.
2. Air or gases in the liquid.
3. Check impeller diameter.
4. Mechanical defects (impeller clearance too
great: impeller damaged).
5. Wrong rotation.
6. Pressure gauge in the wrong place, (or
defective gauge) .
C. Pump takes too much power:
1. Speed too high.
2. Head lower than rating; pumping beyond
design point.
3. Liquid heavier than specified; check viscosity
and specific gravity.
4. Mechanical defects (rotating element
rubbing).
D. Pump is noisy:
1. Hydraulic noises—cavitation, insufficient
suction pressure.
2. Mechanical defects (rotating parts are
binding, loose or broken).
E. Pump leaks:
1. Teflon o-rings are subject to creep. When a
leak is detected, stop the pump and check
the clamps and fasteners to be sure they
are secure. Should the leak continue,
secure the pump and inspect all the
components for cracks and wear.
OP E R A T I N G I N S T R U C T I O N S

1
11 5
8910 11
12
6
4
7
13
3
2
25
15, 16
POLYPROPYLENE MODELS KYNAR MODELS
ITEM DESCRIPTION QTY.MATERIAL PART NUMBER MATERIAL PART NUMBER
1 MOTOR 1 VARIOUS CONSULT FACTORY VARIOUS CONSULT FACTORY
2 Adapter Plate 1 Noryl 010P400355-513 Noryl 010P400355-513
3 Adapter 1 Noryl 010P400356-513 Noryl 010P400356-513
4 Magnet Assembly 1 Kynar 562P400360-383 Kynar 562P400360-383
5a MAGNETIC DRIVE - 1-1/8” 1 VARIOUS 561P4003622-362 VARIOUS 561P4003622-362
5b MAGNETIC DRIVE - 1-3/8” 1 VARIOUS 562P4003623-362 VARIOUS 562P4003623-362
6 Casing 1 Polypro 133P400357-576 Kynar 133P400357-383
7 DISK 1 Powder Coated Stainless Steel 250P400372-685 Powder Coated Stainless Steel 250P400372-685
8 Cup 1 Polypro 180P400381-569 Kynar 180P400385-389
9 O-ring 1 Viton 590P2366-830 Viton 590P2366-830
10 O-ring 1 Viton 590P2113-830 Viton 590P2113-830
11 THRUST Washer 2 Silicone Carbide 990P202080-755 SILICONE CARBIDE 990P202080-755
12 Drain Plug 1 Polypro 660P2020651-576 Kynar 660P2020651-383
13 Impeller Assembly 1 Graphite/Polypro consult factory Graphite/Kynar consult factory
14 Shaft 1 Silicone Carbide 850P202079-755 Silicone Carbide 850P202079-755
15 Screw 1/2" x 1-1/4" 4 Stainless Steel 790P0413102-680 Stainless Steel 790P0413102-680
16 Washer 1/2" 4 Stainless Steel 990P04102-680 Stainless Steel 990P04102-680
17 Washer 3/8" x 7/8" 10 Stainless Steel 990P0307-680 Stainless Steel 990P0307-680
18 Cutwater (NOT SHOWN) 1 Polypro 183P4003613-576 Kynar 183P4003613-383
19 Pin (NOT SHOWN) 1 Ceramic 682P102526-150 Ceramic 682P102526-150
20 Bolt 3/8-16 x 3-3/4" 6 Stainless Steel 790P0316306-680 Stainless Steel 790P0316306-680
21 Bolt 3/8-16 x 1" 4 Stainless Steel 790P03161-680 Stainless Steel 790P03161-680
22 Nut 3/8-16 10 Stainless Steel 610P0316-680 Stainless Steel 610P0316-680
23 Lockwasher 3/8" 4 Stainless Steel 540P03-680 Stainless Steel 540P03-680
24 Bolt 3/8"-16 x 3" (full thread) 3 Stainless Steel 790P031632-680 Stainless Steel 790P031632-680
25 Set Screw 1/4-20 x 1/2" 2 Steel 800P022004-720 Steel 800P022004-720
26 Impeller Pin 1 Kynar 682P102527-383 Kynar 682P102527-383
27a Bearing 1 Carbon 080P202078-100 Carbon 080P202078-100
27b Bearing 1 Silicone Carbide 080P202078-755 SIlicone Carbide 080P202078-755
NOTE 1:POLYPROPYLENE IS GLASS REINFORCED.
2.O-RINGS ALSO AVAILABLE IN EPDM AND TEFLON, CONSULT FACTORY
17, 21, 22, 23
19
26
Bearing
17, 20, 22
IMPELLER MODEL # ASSEMBLY BEARING MATERIAL
IMPELLER MATERIAL MODEL CARBON SILICONE CARBIDE
2510 CONSULT FACTORY CONSULT FACTORY
POLYPRO 2525 CONSULT FACTORY CONSULT FACTORY
2550 CONSULT FACTORY CONSULT FACTORY
2510 CONSULT FACTORY CONSULT FACTORY
KYNAR 2525 CONSULT FACTORY CONSULT FACTORY
2550 CONSULT FACTORY CONSULT FACTORY
P A R T S L I S T
24
SPECIAL DRIVE BELL REMOVAL TOOL
Stainless Steel................Part Number 914P102543-680
Torque Specs
Casting - Cup 10 ft. lbs.
Adapter - Plate 10 ft. lbs.
Adapter - Motor 20 ft. lbs.
Impeller
4.5"
14

ASSEMBLY: WET END SUBASSEMBLY
1. Lay cup (8) flat on table. Open end up.
2. Insert pin (19) into shaft (14) (unless pin is pre-molded in
shaft).
3. Slide pin/shaft assembly into cup (8) with the pin guiding
into the slot in the cup. See Figure 1.
4. Take 1 washer (11) with the cut section down and gently
slide it over shaft. Slot in washer should engage standing
section in cup. See Figure 2.
5. Press bearing (27) into impeller (28) with the guide hole in
bearing lined up with the guide hole in the impeller.
See Figure 3.
6. Place pin (26) into hole between bearing and impeller
precisely pressed together. Do not lose pin. See Figure 4.
7. Slide driven magnet (4) over hex part on the back of the
impeller, with the radius edge facing back of the impeller.
A small of water soluble lubricant will help the magnet
slide free. You may need to apply pressure to get over the
end of the impeller hex. Make sure the pin (26)
remains in place. The magnet will now hold the pin
captive.
See Figure 5.
8. Holding cup sub assembly in one hand, gently slide
impeller/bearing assembly over the shaft and down to
thrust washer. Allow magnet to settle against back of cup
by placing cup back on the table as in item (1).
See Figure 6.
9. Place the o-ring (9) over cup pilot in large radius section.
See Figure 7.
10. Install drain plug (12) with o-ring (10) into casing (6).
Drain plug should seat completely flush against casing
boss.
Read step 12 completely before proceeding!
11. Carefully take washer (11) and locate it in casing
over standing lugs where shaft pilots into casing.
Make sure washer stays centered with shaft bore.
It is recommended, if application permits, to use a
small amount of PTFE (teflon) paste between the
washer and casing. This will form a temporary
"bond" for assembly purposes. See Figure 8.
12. Install proper cutwater (18) into casing (6). See Figure 9.
13. Hold casing horizontally, keeping washer in place.
Lift cup sub assembly horizontally with shaft facing casing.
See Figure 10.
14. Gently slide shaft into washer and casing. Stop if there
are any signs of misalignment. Casing/cup should go
together until casing is contacting o-ring. See Figure 11.
Make sure casing and cup “ears” are all correctly aligned
so that they match up. Refer to the common “flat” ear in
figure 12 for reference.
MOTOR/DRIVE SUBASSEMBLY
"CAUTION" Pump contains powerful rare earth magnets.
Magnets can affect pacemakers, credit cards, and metallic
objects. Failure to follow these assembly instructions
could result in serious injury.
1. Stand the motor (1) on its fan end, inspect shaft for debris
and imperfections. Remove any if present.
2. Apply a small amount of Superlube ® lubricant to shaft.
3. Inspect the drive magnet (5) bore for any loose paint in the
bore. Remove if necessary.
4. Check the fit of the shaft and key to drive magnet bore.
Make sure the drive magnet installs and removes freely.
5. Remove drive magnet from the motor and set aside.
6. Bolt the adapter plate (2) to adapter (3) using 4 -1" x 3/8"
bolts, washers (17), lock washers (23) , and nuts (22).
Install nuts into hex area found in back of adapter plate.
Torque bolts to 10 ft./lbs.
7. Using 4 -1/2" bolts (15) and washers (16), secure the
adapter assembly to the motor. Orientation must be so
that the "flat" ear on the adapter corresponds with the
bottom "base" of the motor. See Figure 12 for orientation
picture. Torque bolts to 20 ft./lbs. each.
8. Install 2 set screws (25) into drive magnet (5).
Do not allow set screws to protrude into shaft/key area.
9. Install drive magnet with set screws onto shaft of motor.
Drive bell should be approximately 1/16" below adapter
surface as shown in Figure 13.Check that disk (7) does
not hit magnet when magnet is rotated with disk (7) in
position.
10. Tighten 2 set screws with 1/8" hex wrench through weep
hole in adapter (3). See Figure 16 and 17.
11. Install 3 -3/8"x 3" full thread screws (24) into adapter (3).
These screws should be installed with the hex toward
motor and threaded into 3 bosses on adapter (3). Screws
should be fully extended almost bottoming as the hex
nears the adapter. These screws will be used to lower the
powerful magnet/cup assembly into the drive magnet
assembly. See Figure 14.
ASSEMBLY OF WET END TO MOTOR DRIVE
SUBASSEMBLY
1. You should, by now, have assembled a wet end and a
motor/magnet drive assembly. If not, go back and do so.
2. With both subassemblies complete, you will now look at
the orientation of the cup (8) versus the adapter (3). There
is a "flat" ear on both that corresponds. There is also 3
"ears" on the cup that correspond to the 3 bolts sticking
out of your adapter.
3. For safety,put on gloves for the remainder of this
assembly to prevent any possibility of pinching.
4. Remove the disk (7) from the adapter (3) and slide it onto
the cup (8). Be careful, the disk is magnetic and will shift
with the magnet inside the cup. The arched section of the
disk should correspond with the back face of the cup.
Make sure the 2 surfaces match.
5. Holding the wet end subassembly with the disk, lower the
assembly until the 3 bolts contact the 3 bosses in the cup.
Look carefully under the cup where the bolts made
contact. Make sure the 3 bolts are rested inside the
counter bores in the cup adjust or remove and replace if
necessary.See Figure 14.
6. You will notice that the disk (7) has centered itself with
the magnets. As you lower the assembly,you will need to
make sure the disk seats into the counter bore in the
adapter (3) properly.
7. Carefully lower the wet end by turning each of the 9/16"
hex head 3/8"x 3" full thread bolts counter clockwise 2-3
turns each, in sequence. Continue until all 3 bolts are
backed out and the cup contacts the adapter.
See Figure 15.
8. Center and seat the cup on its counter bore on the adapter
and make sure all bolt holes and bosses are aligned
properly.
9. Install 6 - 3/8"x 3 3/4"bolts (20), washers (17) and nuts
(22) through casing (6), resting the nuts in the adapter (3)
back.
10. Tighten all 6 bolts in a star pattern and torque to
10ft./lbs. each.

IMPORTANT! With pump standing on fan end of motor,
insert a long screw driver and use it to spin the impeller to
make sure it spins freely.. If not, disassemble and check
for bound par
ts.
11. Connect plumbing to pump. Mount pump and connect
wiring. Check rotation direction of motor only after pump
has been flooded. Rotation direction should be clockwise
from far end of motor.
12. Start pump and check for leaks.
You have now completed the pump assembly.
DISASSEMBLY:
1. Disconnect power and plumbing, drain all fluid from pump.
2. Remove 6 - 3/8"x 3 " bolts (20), nuts (22), and
washers (17).
3. Using 3 - 3/8"x 3" full thread bolts in adapter. Separate
wet end by tightening these a few turns at a time. Do this
in a circular sequence to slowly separate the assembly
until all 3 bolts are fully extended. See Figure 14 and 15.
4. Holding cup/casing assembly with two hands, and secur-
ing the motor from moving, pull the cup/casing assembly
away from the adapter/motor/drive magnet.
See Figure 11.
5. Set the casing/cup assembly on the back of the cup flat on
the table. Be cautious of metal on the bench that may be
attracted by the powerful magnets inside the cup.
6. Lift the casing (6) off the cup vertically. Make sure that
the washer (11) is not damaged. Set casing (6) and
washers (11) aside.
7. If disk (7) is with cup assembly, remove it now.
8. Remove impeller assembly (13) and driven magnet
(4) from cup gently to avoid damaging the silicon carbide
shaft (14). See Figure 6.
9. Remove the other washer (11) from the shaft gently.
See Figure (2).
10. Remove the shaft (14) from the cup (8) with a slight
rocking motion if required. See Figure 1.
11. Remove o-ring (9) from cup. Replace if necessary.
12. Inspect all washers (11) and shaft (14) for damage.
Replace if required.
13. Inspect impeller/bearing assembly for any damage.
Remove magnet (4) and pin (26) and set aside.
14. Remove drive magnet (5) from motor by loosening 2 - 1/8"
set screws through weep hole in adapter. Sethco removal
tool part number 914P102543-680 is available if the drive
magnet will not remove. See Figure 16 and 17.
15. Remove adapter/plate assembly by removing 4 - " bolts
(15) from motor.
16. Inspect motor shaft and C face for corrosion or damage.
17. Separate the adapter (3) from the adapter plate (2) by
removing 4 - 3/8" screws.
18. Inspect all parts. Replace if necessary.
FIGURE 1 FIGURE 2
FIGURE 3 FIGURE 4
HOLE
HOLE

FIGURE 5 FIGURE 6
FIGURE 7 FIGURE 8
FIGURE 9 FIGURE 10

FIGURE 11 FIGURE 12
BOTTOM FLAT BOSS MOTOR FEET
FIGURE 13 FIGURE 14
MAGNET
BELOW
ADAPTER
1/16” ADAPTER
FIGURE 15 FIGURE 16 FIGURE 17

For high volume transfer
of most acids, alkalies, caustics,
bleaches, sea water, solvents
and many other harsh environments
PD-345-02
HIGH VOLUME
SELF PRIMING
MAGNETIC-DRIVE
SEAL-LESS PUMP
PARTS LIST
OPERATION INSTRUCTIONS
June 1, 2002
WARNING: PUMP CONTAINS POWERFUL
MAGNETS. EXTREME CARE MUST BE USED
DURING ASSEMBLY AND
DISASSEMBLY TO AVOID INJURY.
700 Emlen Way • Telford, PA 18969
Phone: [phone]
Email: [email protected]
www.cecoenviro.com

YOU WILL NEED THE FOLLOWING TOOLS
1. 3/8" ratchet
2. 3/8" 6" length extension
3. Torque wrench
4. 9/16" socket
5. 3/4" socket
6. 3/4" open end wrench
7. 1/8" hex allen wrench
8. 7/16" deep socket
9. Teflon paste (optional)
10. Sethco removal tool (part number: 914P102543-680
(optional)
INSTALLATION
Allow sufficient head room and floor space for the
addition of priming liquid and for proper inspection and
maintenance.
PIPING
All piping must be supported independently of the pump.
The piping should always line up naturally with the
pump. Never draw or force the piping to the suction or
discharge of the pump. All installations should be
properly designed for changes in ambient operating
temperatures. Omission of this could result in severe
strain transmitted to the pump. The piping should be as
short and direct as possible. Avoid all unneccesary
elbows, bends, and fittings, as they increase friction
losses in the piping.
SUCTION PIPING
The length of the suction pipe should be as short as
possible to prevent excessively long priming time, as
priming times are directly proportional to suction piping
volumes. SUCTION PIPING MUST BE AIR TIGHT OR
PUMP WILL NOT PRIME. DO NOT INSTALL ANY
TYPE OF CHECK VALVE IN THE SUCTION PIPE.
DISCHARGE PIPING
A valve in the discharge line should be of a design to
allow throttling or flow control. Centrifugal pumps should
never be throttled on the suction side.
THE DISCHARGE VALVE MUST BE OPEN AND THE
DISCHARGE PIPING VENTED DURING THE PRIMING
CYCLE TO ALLOW THE AIR EVACUATED FROM THE
SUCTION PIPING TO ESCAPE.
If a check valve is used in the discharge piping it must
be equipped with an air bleed bypass or an air bleed
return to the pumped liquid source. If you are not consult
factory.
INITIAL START UP
On first start up, and any time motor is reconnected to
an electrical outlet, check direction of motor rotation as
follows:
1. Fill pump with liquid as directed in priming instruc-
tions below.
2. Turn switch "on" and then "off" immediately. Observe
rotation. It should be in the direction of the arrow on
motor or pump (counterclockwise when looking at
pump end of motor).
3. To reverse rotation refer to instructions on motor.
PRIMING AND STARTING
Check to be sure suction and discharge valves are
open. Also be sure discharge piping is vented and suc-
tion piping is submerged in the fluid to be pumped.
Remove clamp (30) and cover (31). Fill primer chamber
(6) to inlet with 2 quarts of priming fluid. Reinstall the
cover (1) and secure the clamp (30).
Start the pump. Initially, air will be pumped from the
suction piping. When all the air is evacuated, the unit will
pump liquid.
TROUBLESHOOTING
A. Pump will not prime or insufficient liquid
delivered:
1. Air leakage in suction piping.
2. Suction lift too high or insufficient suction
pressure.
3. Impeller, casing, suction pipe or strainer
plugged with solids
4. Wrong rotation.
5. Magnetic couple slipping.
B. Not enough pressure:
1. Speed too low.
2. Air or gases in the liquid.
3. Check impeller diameter.
4. Mechanical defects (impeller clearance too
great: impeller damaged).
5. Wrong rotation.
6. Pressure gauge in the wrong place, (or
defective gauge) .
C. Pump takes too much power:
1. Speed too high.
2. Head lower than rating; pumping beyond
design point.
3. Liquid heavier than specified; check viscosity
and specific gravity.
4. Mechanical defects (rotating element
rubbing).
D. Pump is noisy:
1. Hydraulic noises—cavitation, insufficient
suction pressure.
2. Mechanical defects (rotating parts are
binding, loose or broken).
E. Pump leaks:
1. Teflon o-rings are subject to creep. When a
leak is detected, stop the pump and check
the clamps and fasteners to be sure they
are secure. Should the leak continue,
secure the pump and inspect all the
components for cracks and wear.
OP E R A T I N G I N S T R U C T I O N S

1
14.5"
P A R T S L I S T
25
2
15,16 11
85314 74
9613
10
12
27 29
35
30A
31
37
32
34
34
36
30
31
38
19 26 33
2626
INLET
DISCHARGE
17,20,22
17"
3HP - 10-3/4"
5HP - 13 5/8"
7.5 HP - 16" 18.6"
WARNING
PUMP CONTAINS
POWERFUL MAGNETS.
EXTREME CARE MUST
BE USED DURING
ASSEMBLY
AND DISASSEMBLY
TO AVOID INJURY. 17, 21, 22, 23
32
39
11
8
25
POLYPROPYLENE MODELS KYNAR MODELS
ITEM DESCRIPTION QTY.MATERIAL PART NUMBER MATERIAL PART NUMBER
1 Motor 1 Various Consult factory Various Consult factory
2 Adapter Plate 1 Noryl 010P400355-513 Noryl 010P400355-513
3 Adapter 1 Noryl 010P400356-513 Noryl 010P400356-513
4 Magnet Assembly 1 PVDF 562P400360-383 Kynar 562P400360-383
5a Magnetic Drive, 1-1/8” 1 Various 561P4003622-362 Various 561P4003622-362
5b Magnetic Drive, 1-3/8” 1 Various 562P4003623-362 Various 561P4003622-362
6 Casing 1 Polypro 133P400357-576 Kynar 133P400357-383
7 DISK 1 Powder Coated Stainless Steel 250P400372-685 Powder Coated Stain. Steel 250P400372-685
8 Cup 1 Polypro 180P400381-569 Kynar 180P400385-389
9 O-ring 1 Viton 590P2366-830 Viton 590P2366-830
10 O-ring 1 Viton 590P2113-830 Viton 590P2113-830
11 Thrust Washer 2 Silicone Carbide 990P202080-755 Silicone Carbide 990P202080-755
12 Drain Plug 1 Polypro 660P2020652-576 Kynar 660P2020652-383
13 Impeller Assembly 1 Graphite/Polypro consult factory Graphite/Kynar consult factory
14 Shaft 1 Silicone Carbide 850P202079-755 Silicone Carbide 850P202079-755
15 Screw 1/2" x 1-1/2" 4 Stainless Steel 790P0413104-680 Stainless Steel 790P041302-680
16 Washer 1/2" 4 Stainless Steel 990P04102-680 Stainless Steel 990P04102-680
17 Washer 3/8" x 7/8" 14 Stainless Steel 990P0307-680 Stainless Steel 990P0307-680
18 Cutwater (Not shown)) 1 Polypro 183P4003613-576 Kynar 183P4003613-383
19 Pin (Not shown) 1 Ceramic 682P102526-150 Ceramic 682P102526-150
20 Bolt 3/8-16 x 3-3/4" 7 Stainless Steel 790P0316306-680 Stainless Steel 790P0316306-680
21 Bolt 3/8-16 x 1" 5 Stainless Steel 790P03161-680 Stainless Steel 790P03161-680
22 Nut 3/8-16 12 Stainless Steel 610P0316-680 Stainless Steel 610P0316-680
23 Lockwasher 3/8" 6 Stainless Steel 540P03-680 Stainless Steel 540P03-680
24 Bolt 3/8"-16 x 3" (full thread) 3 Stainless Steel 790P031632-680 Stainless Steel 790P031632-680
25 Set Screw 1/4-20 x 1/2" 2 Steel 800P022004-720 Steel 800P022004-720
26 Impeller Pin 1 Kynar 682P102527-383 Kynar 682P102527-383
27 Bearing 1 Carbon 080P202078-100 Carbon 080P202078-100
27 Bearing 1 Silicone Carbide 080P202078-755 Silicone Carbide 080P202078-755
28 Impeller Assembly See Table A on next page — See Table A on next page —
29 Clamp (Chamber to Casing) 2 Stainless Steel 130P202082-680 Stainless Steel 130P202082-680
30 Clamp (Discharge Chamber) 1 Stainless Steel 130P202081-680 Stainless Steel 130P202081-680
30A Clamp (Inlet Chamber) 1 Stainless Steel 130P2020811-680 Stainless Steel 130P2020811-680
31 Cover 2 Polypro 140P301426-576 Kynar 140P301426-383
32 O-ring 2 Viton 590P2252-830 Viton 590P2252-830
33 O-ring 2 Viton 590P2238-830 Viton 590P2238-830
34 Priming Chamber 2 Polypro 662P400359-576 Kynar 662P400359-383
35 Basket Strainer 1 Polypro 031P400365-580 Kynar 031P400365-383
36 Baffle 1 Polypro 033P400358-580 Kynar 033P400358-384
37 Handle 1 Polypro 391P201350-576 Kynar 391P201350-384
38 Bracket 1 Noryl 050P400375-513 Noryl 050P400375-513
39 Bolt 3/8 - 16 -3-1/2" 2 Stainless Steel 790P0316304-680 Stainless Steel 790P0316304-680
NOTE 1: POLYPROPYLENE IS GLASS REINFORCED. O’RINGS ARE AVAILABLE IN EPDM AND TEFLON - CONSULT FACTORY
1
24

IMPELLER MODEL # ASSEMBLY BEARING MATERIAL
IMPELLER MATERIAL MODEL CARBON SILICONE CARBIDE
2510 CONSULT FACTORY CONSULT FACTORY
POLYPRO 2525 CONSULT FACTORY CONSULT FACTORY
2550 CONSULT FACTORY CONSULT FACTORY
2510 CONSULT FACTORY CONSULT FACTORY
KYNAR 2525 CONSULT FACTORY CONSULT FACTORY
2550 CONSULT FACTORY CONSULT FACTORY
Torque Specs
Casting - Cup 10 ft. lbs.
Adapter - Plate 10 ft. lbs.
Adapter - Motor 20 ft. lbs.
ASSEMBLY: WET END SUBASSEMBLY
1. Lay cup (8) flat on table. Open end up.
2. Insert pin (19) into shaft (14) (unless pin is pre-molded in
shaft).
3. Slide pin/shaft assembly into cup (8) with the pin guiding
into the slot in the cup. See Figure 1.
4. Take one washer (11) with the cut section down and
gently slide it over shaft. Slot in washer should engage
standing section in cup. See Figure 2.
5. Press bearing (27) into impeller (28) with the guide hole in
bearing lined up with the guide hole in the impeller.
See Figure 3.
6. Place pin (26) into hole between bearing and impeller
precisely pressed together.Do not lose pin. See Figure
4.
7. Slide driven magnet (4) over hex part on the back of the
impeller, with the radius edge facing back of the impeller.
A small of water soluble lubricant will help the magnet
slide free. You may need to apply pressure to get over
the end of the impeller hex. Make sure the pin (26)
remains in place. The magnet will now hold the pin
captive.
See Figure 5.
8. Holding cup sub assembly in one hand, gently slide
impeller/bearing assembly over the shaft and down to
thrust washer.Allow magnet to settle against back of cup
by placing cup back on the table as in item (1).
See Figure 6.
9. Place the o-ring (9) over cup pilot in large radius section.
See Figure 7.
10. Install drain plug (12) with o-ring (10) into casing (6).
Drain plug should seat completely flush against casing
boss.
11. Install proper cutwater (18) into casing (6). See Figure 9.
Read step 12 completely before proceeding!
12. Carefully take washer (11) and locate it in casing
over standing lugs where shaft pilots into casing.
Make sure washer stays centered with shaft bore.
It is recommended, if application permits, to use a
small amount of PTFE (teflon) paste between the
washer and casing. This will form a temporary
"bond" for assembly purposes. See Figure 8.
13. Hold casing horizontally, keeping washer in place.
Lift cup sub assembly horizontally with shaft facing casing.
See Figure 10.
14. Gently slide shaft into washer and casing. Stop if there
are any signs of misalignment. Casing/cup should go
together until casing is contacting o-ring. See Figure 11.
Make sure casing and cup “ears” are all correctly aligned
so that they match up. Refer to the common “flat” ear in
figure 12 for reference.
MOTOR/DRIVE SUBASSEMBLY
"CAUTION" Pump contains powerful rare earth magnets.
Magnets can affect pacemakers, credit cards, and metal-
lic objects. Failure to follow these assembly instructions
could result in serious injury.
1. Stand the motor (1) on its fan end, inspect shaft for debris
and imperfections. Remove any if present.
2. Apply a small amount of Superlube ® lubricant to shaft.
3. Inspect the drive magnet (5) bore for any loose paint in
the bore. Remove if necessary.
4. Check the fit of the shaft and key to drive magnet bore.
Make sure the drive magnet installs and removes freely.
5. Remove drive magnet from the motor and set aside.
6. Bolt the adapter plate (2) to adapter (3) using 4 -1" x 3/8"
bolts, washers (17), lock washers (23) , and nuts (22).
Install nuts into hex area found in back of adapter plate.
Torque bolts to 10 ft./lbs.
7. Using 4-1/2" bolts (15) and washers (16), secure the
adapter assembly to the motor.Orientation must be so
that the "flat" ear on the adapter corresponds with the
bottom "base" of the motor.See Figure 12 for orientation
picture. Torque bolts to 20 ft./lbs. each. On bolt at 2
o’clock position, install bracket (38) as shown in Figure 24.
Leave this bolt hand tight for now.
8. Install 2 set screws (25) into drive magnet (5).
Do not allow set screws to protrude into shaft/key area.
9. Install drive magnet with set screws onto shaft of motor.
Drive bell should be approximately 1/16" below adapter
surface as shown in Figure 13.Check that disk (7) does
not hit magnet when magnet is rotated with disk (7) in
position.
10. Tighten 2 set screws with 1/8" hex wrench through weep
hole in adapter (3). See Figure 16 and 17.
11. Install 3-3/8" x 3" full thread screws (24) into adapter (3).
These screws should be installed with the hex toward
motor and threaded into 3 bosses on adapter (3). Screws
should be fully extended almost bottoming as the
hex nears the adapter.These screws will be
used to lower the powerful magnet/cup assembly
into the drive magnet assembly. See Figure
14.
ASSEMBLY OF WET END TOMOTOR DRIVE
SUBASSEMBLY
1. You should, by now, have assembled a wet end and a
motor/magnet drive assembly. If not, go back and do so.
2. With both subassemblies complete, you will now look at
the orientation of the cup (8) versus the adapter (3).
There is a "flat" ear on both that corresponds. There is
also 3 "ears" on the cup that correspond to the 3 bolts
sticking out of your adapter.
3. For safety,put on gloves for the remainder of this
assembly to prevent any possibility of pinching.
4. Remove the disk (7) from the adapter (3) and slide it onto
the cup (8). Be careful, the disk is magnetic and will shift
with the magnet inside the cup. The arched section of the
disk should correspond with the back face of the
cup. Make sure the 2 surfaces match.
5. Holding the wet end subassembly with the disk, lower the
assembly until the 3 bolts contact the 3 bosses in the cup.
Look carefully under the cup where the bolts made

6. You will notice that the disk (7) has centered itself with
the magnets. As you lower the assembly, you will need to
make sure the disk seats into the counter bore in the
adapter (3) properly.
7. Carefully lower the wet end by turning each of the 9/16"
hex head 3/8" x 3" full thread bolts counter clockwise 2-3
turns each, in sequence. Continue until all 3 bolts are
backed out and the cup contacts the adapter.
See Figure 15.
8. Center and seat the cup on its counter bore on the adapter
and make sure all bolt holes and bosses are aligned
properly.
9. Install 6-3/8" x 3-3/4" bolts (20), washers (17) and nuts
(22) through casing (6), resting the nuts in the adapter (3)
back.
10. Tighten all 6 bolts in a star pattern and torque to
10ft./lbs. each.
IMPORTANT! With pump standing on fan end of motor,
insert a long screw driver and use it to spin the impeller to
make sure it spins freely.. If not, disassemble and check
for bound parts.
SELF PRIMING ASSEMBLY:
1. Install handle (37) into basket strainer (35).
2. Install basket strainer/handle into one priming chamber
(34). See Figure 20.This will be the inlet priming cham-
ber.
3. Install o-ring (32) into groove in priming chamber.See
Figure 19. Install cover (31) and clamp (30) onto chamber.
See Figure 22.Set assembly aside.
4. Install baffle (36) into priming chamber (34). Make sure
that the contour of the baffle end mates with matching
contour inside priming chamber. Baffle should be captured
between 2 standing rails on each side. See Figure 19 for
clarification if necessary.
5. Install o-ring (32) into groove in priming chamber. See
Figure 21.Install cover (31) and clamp (30) onto
chamber. See Figure 22.This assembly will be the
priming chamber assembly.
6. Install o-rings (33) on both the pump casing inlet and
discharge nipples. See figure 18 for proper location.
7. Install inlet priming chamber (with basket strainer) over
2-1/2" inlet thread. Chamber should seat nearly flat to the
flange face on the casing. Use band clamp (29) and a
7/16" deep socket or nut driver to clamp the priming
chamber to the casing. Leave priming chamber loose or
movable for now. See Figure 23.
8. Install discharge priming chamber (with baffle) over 2"
discharge thread. Chamber should seat nearly flat against
casing flange. Use band clamp (29) and a 7/16" deep
socket or nut driver to clamp the priming chamber to the
casing. Leave the priming chamber loose or movable for
now.
9. Rotate discharge chamber assembly until mounting
bracket (38) site slat against chamber bracket. See Figure
25. Install 3/8" x 1" bolt (21), washers (17), lockwasher
(23), and nut (22). Do not tighten at this time.
10. Rotate inlet chamber until the chamber bracket on it
contacts the long boss on the discharge chamber.
See Figure 24. Use 3/8" x 3-3/4" long bolt (39) with
washers (17), lockwasher (23), and nut (22).
Do not tighten at this time.
11. Check that both priming chambers have not shifted from
their flange faces. Tighten band clamps (29) on each using
7/16" deep socket.
12. Now tighten both 3/8" bolts (39) and (21) using a 9/16"
socket. Torque to 10 ft./lbs.
13. Tighten the last 1/2' bolt using a 3/4" socket. Torque to
10 ft./lbs.
14. Connect plumbing to pump. Remove inlet priming
chamber cover (31) to add fluid. Close cover and check
rotation of motor. Rotation should be clockwise
from fan end of motor. Start pump and check for leaks.
15. You have now completed the pump assembly.
DISASSEMBLY:
1. Disconnect power and plumbing, drain all fluid from pump.
2. Remove bolt (39), washers (17), nut (22), and lockwasher
(23) using 9/16" wrench and socket. See Figure 22.
3. Remove short bolt (21), washer (17), nut (22), and
lockwasher (23) using 9/16" wrench and socket.
See Figure 25 and 26.
4. Loosen clamp (33) on discharge chamber (34) using a
7/16" deep socket or nut driver. See Figure 23.
5. Remove discharge chamber (34) and o-ring (33) from
casing.
6. Loosen clamp (30) on discharge chamber suing a
7/16" deep socket or nut driver. Remove cover (31) and
baffle (36) from chamber. See Figure 19 and 22.
7. Loosen clamp (33) on inlet chamber (34) using a 7/16"
deep socket or nut driver. See Figure 23.
8. Remove inlet chamber (34) and o-ring (33) from casing.
9. Loosen clamp (30) on inlet chamber (34) using a 7/16"
deep socket or nut driver.Remove cover (31) and strainer
basket/handle (35 & 37). See Figure 20 and 22.
l0. Loosen 1-1/2" bolt (15) using a 3/4" wrench. Loosen only
the bolt that is holding the bracket (38) in place. Remove
bracket and set aside.
11. Remove 6 - 3/8"x 3-3/4" bolts (20), nuts (22), and
washers (17).
12. Using 3-3/8"x 3" full thread bolts in adapter.Separate wet
end by tightening these a few turns at a time. Do this in a
circular sequence to slowly separate the assembly until all
3bolts are fully extended. See Figure 14 and 15.
13. Holding cup/casing assembly with two hands, and
securing the motor from moving, pull the cup/casing
assembly away from the adapter/motor/drive magnet.
See Figure 11.
14. Set the casing/cup assembly on the back of the cup flat on
the table. Be cautious of metal on the bench that may
be attracted by the powerful magnets inside the cup.
15. Lift the casing (6) off the cup vertically. Make sure that the
washer (11) is not damaged. Set casing (6) and washers
(11) aside.
16. If disk (73) is with cup assembly, remove it now.
17. Remove impeller assembly (13) and driven magnet (4)
from cup gently to avoid damaging the silicon carbide shaft
(14). See Figure 6.
18. Remove the other washer (11) from the shaft gently.
See Figure 2.
19. Remove the shaft (14) from the cup (8) with a slight
rocking motion if required. See Figure 1.
20. Remove o-ring (9) from cup. Replace if necessary.
21. Inspect all washers (11) and shaft (14) for damage.
Replace if required.
22. Inspect impeller/bearing assembly for any damage.
Remove magnet (4) and pin (26) and set aside.
23. Remove drive magnet (5) from motor by loosening 2 -1/8"
set screws through weep hole in adapter.Sethco removal
tool part number 91 4P 102543-680 is available if the drive
magnet will not remove. See Figure 16 and 17.
24. Remove adapter/plate assembly by removing 4 -1/2" bolts
(15) from motor.
25. Inspect motor shaft and C face for corrosion or damage.
26. Separate the adapter (3) from the adapter plate (2) by
removing 4 -3/8" screws.

FIGURE 1 FIGURE 2
FIGURE 3 FIGURE 4
HOLE
HOLE
FIGURE 5 FIGURE 6

FIGURE 7 FIGURE 8
FIGURE 9 FIGURE 10
FIGURE 11 FIGURE 12
BOTTOM FLAT BOSS MOTOR FEET

FIGURE 13 FIGURE 14
MAGNET
BELOW
ADAPTER
1/16” ADAPTER
FIGURE 15 FIGURE 16
FIGURE 17
FIGURE 18

FIGURE 19 FIGURE 20
FIGURE 21 FIGURE 22
FIGURE 23 FIGURE 24

FIGURE 25 FIGURE 26
FIGURE 27 FIGURE 28