AMT Pumps 3150 Assembly instructions

Centrifugal Pumps
Cast Iron & Bronze Models
Specifications Information and 3150 thru 315E and
Repair Parts Manual 4240 thru 4261
Please read and save this Repair Parts Manual. Read this manual and the General Operating Instructions carefully before attempting to
assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. The Safety
Instructions are contained in the General Operating Instructions. Failure to comply with the safety instructions accompanying this product
could result in personal injury and/or property damage! Retain instructions for future reference.
3150-257-00
Description
These non self-priming centrifugal pumps are intended for liquid transfer, heating
and cooling circulation, booster service and other industrial applications where no
suction lift is required.
All models feature a semi-open clog-resistant impeller, and a ball bearing electric
motor. A dual volute casing is used on all models except 4240. A mechanical seal
(comprised of carbon, ceramic, Buna N elastomer, and stainless steel components)
isolates motor shaft from liquid being pumped. Discharge port on pump casing can
be rotated in 90º increments, with vent and drain plugs for all positions. Handles
liquids from 40° to 180º F (4º to 82º C). Maximum ambient temperature 104° F
(40° C). Casing working pressure to 100 psi (689 kPa). These are manual units, no
controls are supplied. For use with nonflammable, non-abrasive liquids, compatible
with pump component materials.
BRONZE UNITS
These pumps conform to the above standards, plus are well suited for salt water
handling. They are sized to handle up to 1.03 specific gravity liquids. They also
feature provisions for the installation of an automatic seal wash. This may extend
shaft seal life by retarding salt crystallization on seal wear face. Seal wash hose is
included.
FLANGED UNITS
These pumps accommodate flange type suction and discharge piping connections.
Refer to form 1808-634-00 for General Operating and Safety Instructions.
05/2001
Specifications
DRIVER PUMP WEIGHT
NEMA Power Supply Cast Iron Bronze
Model HP Enclosure Frame @ 60 Hz RPM Suc. x Dis. (lbs.) (lbs.)
3150 2 TEFC 145JM 230/460 VAC, 3-phase 3600 2”x11/2”NPT 69 76
3151 3 TEFC 182JM 230/460 VAC, 3-phase 3600 2”x11/2”NPT 83 90
3152 5 TEFC 184JM 230/460 VAC, 3-phase 3600 2”x11/2”NPT 100 107
3154 3 TEFC 182JM 230/460 VAC, 3-phase 3600 2”x11/2”FLG 91 —
3155 5 TEFC 184JM 230/460 VAC, 3-phase 3600 2”x11/2”FLG 108 —
3156 2 TEFC 56J 115/230 VAC, 1-phase 3450 2”x11/2”NPT 65 72
3157 2 TEFC 56J 230/460 VAC, 3-phase 3450 2”x11/2”NPT 64 71
3158 2 ODP 56J 115/230 VAC, 1-phase 3450 2”x11/2”NPT 62 69
3159 2 ODP 56J 230/460 VAC, 3-phase 3450 2”x11/2”NPT 61 68
315A 3 TEFC 56J 230 VAC, 1-phase 3450 2”x11/2”NPT 75 82
315B 3 TEFC 56J 230/460 VAC, 3-phase 3450 2”x11/2”NPT 74 81
315C 3 ODP 56J 230 VAC, 1-phase 3450 2”x11/2”NPT 72 79
315D 3 ODP 56J 230/460 VAC, 3-phase 3450 2”x11/2”NPT 71 78
315E 5 TEFC 184JM 230 VAC, 1-phase 3600 2”x11/2”NPT 121 128
4240 71/2TEFC 184JM 230/460 VAC, 3-phase 3600 2”x11/2”NPT 108 115
4250 10 TEFC 184JM 230/460 VAC, 3-phase 3600 3”x2”NPT 120 127
4251 15 TEFC 215JM 230/460 VAC, 3-phase 3600 3”x2”NPT 195 204
4260 71/2TEFC 184JM 230/460 VAC, 3-phase 3600 3”x3”NPT 117 125
4261 10 TEFC 184JM 230/460 VAC, 3-phase 3600 3”x3”NPT 124 131
(TEFC) Totally Enclosed Fan Cooled, (OPD) Open Drip Proof, (NPT) National Pipe Thread, (FLG) 125 lb. Flange
NOTE: Driver data is subject to change without notice, see label on driver for actual specifications.

2
Installation
1. Check Performance Chart for
recommended NPSHR. Problems will
arise in operation of this pump
unless the recommended NPSHR is
supplied to the pump (see
“Troubleshooting”).
2. BRONZE UNITS
Because of crystallization and
erosive material on the shaft seal
(Ref. Nos. 9, 10), we recommend
installation of seal-wash hose (Ref.
No. 21). Using a wrench, remove the
pipe plug (Ref. No. 20) from adapter
(Ref. No. 3) and pipe plug (Ref. No.
15) from casing (Ref. No. 14)
(remove pipe plug on the 3 o’clock
position). Install sealwash hose.
Maintenance Make certain
that unit is
disconnected from power source
before attempting to service or
remove any component.
REMOVAL OF OLD SEAL
Refer to Figure 2.
IMPORTANT: Always replace both seal
seat (Ref. No. 9) and seal head (Ref.
No. 10) to insure proper mating of
components! Also, impeller seal (Ref.
No. 16) (where applicable) should be
replaced anytime impeller fastener
(Ref. No. 13) has been removed.
1. Remove fasteners (Ref. No. 6) that
connect adapter (Ref. No. 3) to
casing (Ref. No. 14).
2. Remove casing and o-ring (Ref.
No. 8).
Care should be
taken not to pinch
or “shave” o-ring between adapter
and casing.
3. Using a wrench remove impeller
fastener, impeller seal (where
applicable), and impeller (Ref. No.
12).
IMPORTANT: Care should be taken to
insure that the same number of shim
washers (Ref. No. 11) are replaced
behind impeller as were removed.
These shim washers are located directly
behind impeller. These washers as well
as impeller key (Ref. No. 19) (where
applicable) become loose as impeller is
removed.
Specifications Information and
Repair Parts Manual
Centrifugal Pumps
Cast Iron & Bronze Models
3150 thru 315E and
4240 thru 4261
Performance Chart
GPM of Water at Total Head in Feet Max.
Model 10’ 20’ 30’ 40’ 50’ 60’ 70’ 80’ 90’ 100’ 110’ Head†
315 (2HP) 170 gpm 150 130 100 65 25 – – – – – 62 ft.
NPSHR‡ 23 ft. 20 18 15 14 14 * * * * *
315 (3HP) – – 165 145 125 95 60 15 – – – 82
NPSHR‡ * * 22 20 18 15 14 14 * * *
315 (5HP) – – – – 200 185 165 145 120 90 50 115
NPSHR‡ * * * * 25 25 23 20 17 15 14
426 (71/2HP) – – – 425 385 340 285 200 75 – – 94
NPSHR‡ * * * 23 19 15 12 10 7 * *
426 (10HP) – – – 500 450 395 340 270 165 – – 98
NPSHR‡ * * * 25 25 19 15 12 9 * *
GPM of Water at Total Head in Feet Max.†
Model 80’ 90’ 100’ 110’ 120’ 130’ 140’ 150’ 160’ 170’ 180’ Head†
424 (71/2HP) 178 gpm 170 158 145 130 110 92 70 40 0 – 170 ft.
NPSHR‡ 19 ft. 18 17 15 13 11 9 * * * *
425 (10HP) 333 300 280 250 210 170 100 – – – – 145
NPSHR‡ 16 14 12 10 7 4 * * * * *
425 (15HP) 385 365 345 325 305 280 255 225 196 160 115 194
NPSHR‡ 22 20 18 16 14 12 10 8 6 4 *
(*) Operation of pumps beyond range indicated will result in reduced pump life, pump damage and/or motor damage.
(†) Shut–off; to convert psi, multiply by specific gravity and divide by 2.31.
(‡) NPSHR: Net Positive Suction Head Required by pump in feet of water at GPM indicated, under flooded suction conditions.
Insufficient NPSH can cause pump cavitation, resulting in a noisy pump and reduced pump life.

3
Models 3150 thru 315E and 4240 thru 4261
Specifications Information and
Repair Parts Manual
Dimensions (Inches)
Model SUC DIS AB†CP†DE1E2 FH1
3150 2* 11/2*6
1/8179/16 31/223/423/4511/32
3151 2* 11/2*7
1/2215/841/233/433/441/213/32
3152 2* 11/2*7
1/2215/841/233/433/451/213/32
3154 2** 11/2** 71/2215/841/233/433/441/213/32
3155 2** 11/2** 71/2215/841/233/433/451/213/32
3156 2* 11/2*4
5/8173/431/227/16 27/16 37/8
3157 2* 11/2*4
7/8165/831/227/16 27/16 37/8
3158 2* 11/2*— 17
1/431/227/16 27/16 37/8
3159 2* 11/2*— 16
1/431/227/16 27/16 37/8
315A 2* 11/2*4
7/8185/831/227/16 27/16 37/8
315B 2* 11/2*4
7/8185/831/227/16 27/16 37/8
315C 2* 11/2*— 17
3/831/227/16 27/16 37/8
315D 2* 11/2*— 17
1/431/227/16 27/16 37/8
315E 2* 11/2*8
5/8245/32 41/233/433/451/213/32
4240 2* 11/2*7
1/2213/841/233/433/451/213/32
4250 3* 2* 71/22117/32 41/233/433/451/213/32
4251 3* 2* 81/4261/32 51/441/441/477/16
4260 3* 3* 71/2223/841/233/433/451/213/32
4261 3* 3* 71/2223/841/233/433/451/213/32
Model H2 L LP MP O†XY ZZZ
3150 11/32 103/841/847
1/843/421/245 1/4
3151 13/32 1211/16 41/849
9/32 43/421/245 1/4
3152 13/32 113/441/849
9/32 43/421/245 1/4
3154 13/32 1211/16 41/849
9/32 43/421/246 1/2
3155 13/32 113/441/849
9/32 43/421/246 1/2
3156 11/32 819/32 21/32 48
11/16 43/421/245
1/4
3157 11/32 819/32 21/32 48
11/16 43/421/245
1/4
3158 11/32 819/32 21/32 48
11/16 43/421/245
1/4
3159 11/32 819/32 21/32 48
11/16 43/421/245
1/4
315A 11/32 819/32 21/32 48
25/32 43/421/245
1/4
315B 11/32 819/32 21/32 48
11/16 43/421/245
1/4
315C 11/32 819/32 21/32 48
11/16 43/421/245
1/4
315D 11/32 819/32 21/32 48
11/16 43/421/245
1/4
315E 13/32 113/441/849
9/32 43/421/245
1/4
4240 13/32 111/231/243/899/32 57/827/16 327/32 51/16
4250 13/32 1121/32 31/2417/32 99/32 52
25/32 43/465/16
4251 7/16 1217/32 31/2417/32 107/852
25/32 43/465/16
4260 13/32 121/241/843/499/32 61/223/441/263/4
4261 13/32 121/241/843/499/32 61/223/441/263/4
NOTE: All dimensions have a tolerance of ±1/8”.
(*) Standard NPT (Female) Pipe Thread. (**) Standard 125 lb. Pipe Flange.
(†) This dimension may vary due to motor manufacturer’s specifications.
Figure 1 – Dimensions
CP
LP
E2 E1
H1
H2 MP
Discharge
Suction
Y
X
O
L
D
F
Z
AB
ZZ

4
1
19
2
21
45
7
6
8910 11
12 13
14 15
16
17
18
20
3
Specifications Information and
Repair Parts Manual 3150 thru 315E and
4240 thru 4261
For Repair Parts, contact dealer where pump was purchased.
Figure 2 — Repair Parts Illustration
1 Motor -1 Phase ODP — ♦1626-024-00 — ♦1626-026-00 — 1
-3 Phase ODP — ♦1626-025-00 — ♦1626-027-00 —
-1 Phase TEFC — ♦1626-070-00 — ♦1626-071-00 1626-078-00
-3 Phase TEFC 1626-042-00 ♦1626-054-00 1626-043-00 ♦1626-072-00 1626-044-00
2 Slinger washer 1470-093-00 1534-000-00 1470-093-00 1534-000-00 1470-093-00 1
3 Adapter -Cast Iron 1470-001-02 4890-030-01 1470-001-02 4890-030-01 1470-001-02 1
-Bronze 1470-004-09 4890-032-01 1470-004-09 4890-032-01 1470-004-09
4 Washer *****4
5 Fastener *****4
6 Fastener *****4
7 Washer *****4
8 O-ring -Buna N *****1
9,10 † Shaft seal assembly -Buna-N 1640-163-90 1640-161-96 1640-163-90 1640-161-96 1640-163-90 1
11 Impeller shim set includes (1) 0.030”, 1664-000-90 1806-044-90 1664-000-90 1806-044-90 1664-000-90 1
(1) 0.020”, (1) 0.010”
12 Impeller 3150-014-09 3156-010-01 3151-014-09 3156-010-02 1471-003-09 1
13 Impeller fastener 1757-010-00 1784-001-00 1757-010-00 1784-001-00 1757-010-00 1
14 Casing -Cast Iron (NPT) 1470-000-01 1470-000-01 1470-000-01 1470-000-01 1470-000-01 1
-Cast Iron (Flanged) — — 1469-000-01 — 1469-000-01
-Bronze (NPT) 1470-005-09 1470-005-09 1470-005-09 1470-005-09 1470-005-09
15 Pipe plug *****4
16 O-ring -Buna N * — * — * 1
17 Shaft sleeve 1472-000-00 — 1472-000-00 — 1472-000-00 1
18 Casing cover —————
19 Impeller key 1471-030-00 — 1471-030–00 — 1471-030-00 1
20 Pipe plug *****1
21 Hose 4261-170-00 4261-170-00 4261-170-00 4261-170-00 4261-170-00 1
∆‡ Seal Kit -Buna N (standard) 3150-300-94 3156-300-94 3150-300-94 3156-300-94 3150-300-94 1
∆‡ Seal Kit -Buna N & sil. carb. (optional) 3150-300-93 3156-300-93 3150-300-93 3156-300-93 3150-300-93 1
∆‡ Seal Kit -Viton (optional) 3150-300-91 3156-300-91 3150-300-91 3156-300-91 3150-300-91 1
∆‡ Seal Kit -Viton & sil. carb. (optional) 3150-300-92 3156-300-92 3150-300-92 3156-300-92 3150-300-92 1
(∆) Not shown; (*) Standard hardware item, available locally; (‡) Includes all required seals Ref. Nos. 8, 9, 10 ,16; (†) Seal head and seat available as set
only; (♦) Requires foot 1626-040-90. When replacing a shaft seal assembly, a new impeller seal (Ref. No. 16) should also be used (where applicable).
Part Number For Models:
3158 315C
3159 315D 315E (NPT)
Ref. 3156 3151 (NPT) 315A 3152 (NPT)
No. Description 3150 3157 3154 (FLG) 315B 3155 (FLG) Qty.
2HP (145JM) 2HP (56J) 3HP (182JM) 3HP (56J) 5HP (184JM)
Repair Parts List
Please provide following information:
-Model number
-Serial number (if any)
-Part description and number as shown in parts list

5
Specifications Information and
Repair Parts Manual 3150 thru 315E and
4240 thru 4261
1 Motor 1626-045-00 1626-046-00 1626-045-00 1626-046-00 1626-047-00 1
2 Slinger washer 1470-093-00 1470-093-00 1470-093-00 1470-093-00 1470-093-00 1
3 Adapter -Cast Iron 1470-001-02 1470-001-02 4240-030-09 4240-030-09 4250-030-09 1
-Bronze 1470-004-09 1470-004-09 4252-033-01 4252-033-01 4252-033-01
4 Washer * * ***4
5 Fastener * * ***4
6 Fastener
* ****4
7 Washer * * ***4
8 O-ring -Buna-N * * ***1
9, 10 † Shaft seal assembly -Buna-N 1640-163-90 1640-163-90 1640-163-90 1640-163-90 1640-163-90 1
11 Impeller shim set includes (1) 0.030
“ , 1664-000-90 1664-000-90 1664-000-90 1664-000-90 1664-000-90 1
(1) 0.020
“ , (1) 0.010 “
12 Impeller 4260-014-01 2217-009-09 4240-014-01 4250-014-01 4250-014-01 1
13 Impeller fastener 1760-010-00 1760-010-00 1757-010-00 1757-010-00 1756-000-00 1
14 Casing -Cast Iron 2217-001-01 2217-001-01 4240-001-09 4250-001-09 4250-001-09 1
-Bronze 2217-002-09 2217-002-09 4240-004-01 4250-004-01 4250-004-01
15 Pipe plug * * ***4
16 O-ring -Buna N * * ***1
17 Shaft sleeve 1472-000-00 1472-000-00 1472-000-00 1472-000-00 1472-000-00 1
18 Casing cover -Cast Iron — — ———1
-Bronze — — 4240-024-01 4240-024-01 4240-024-01
19 Impeller key 1471-030-00 1471-030-00 1471-030-00 1471-030-00 1471-030-00 1
20 Pipe plug * * ***1
21 Hose 4261-170-00 4261-170-00 4261-170-00 4261-170-00 4261-170-00 1
∆‡ Seal Kit -Buna N (standard) 3150-300-94 3150-300-94 4240-300-94 4240-300-94 4240-300-94 1
∆‡ Seal Kit -Buna N & sil. carb. (optional) 3150-300-93 3150-300-93 4240-300-93 4240-300-93 4240-300-93 1
∆‡ Seal Kit -Viton (optional) 3150-300-91 3150-300-91 4240-300-91 4240-300-91 4240-300-91 1
∆‡ Seal Kit -Viton & sil. carb. (optional) 3150-300-92 3150-300-92 4240-300-92 4240-300-92 4240-300-92 1
(∆) Not shown; (*) Standard hardware item, available locally; (‡) Includes all required seals Ref. Nos. 8, 9, 10 ,16; (†) Seal head and seat available as
set only. When replacing a shaft seal assembly, a new impeller seal (Ref. No. 16) should also be used.
Ref. Part Number For Models:
No. Description 4260 4261 4240 4250 4251 Qty.
71/2HP (184JM) 10HP (184JM) 7 1/2HP (184JM) 10HP (184JM) 15 HP (215JM)
1
19
2
21
45
7
6
8910 11
12 13
14 15
16
17
18
20
For Repair Parts, contact dealer where pump was purchased.
Figure 3 — Repair Parts Illustration
Repair Parts List
Please provide following information:
-Model number
-Serial number (if any)
-Part description and number as shown in parts list
3

4. Seal head and shaft sleeve (Ref. No.
17) (where applicable) can now be
pulled from shaft.
5. Pry seal seat from adapter.
6. Push seal head from shaft sleeve
(where applicable).
INSTALLATION OF NEW SEAL
The precision
lapped faces on
shaft seal are easily damaged. Handle
your replacement seal carefully.
1. Thoroughly clean all surfaces of seal
seat cavity.
2. Using a clean cloth, wipe shaft and
shaft sleeve (where applicable) and
make certain that they are perfectly
clean.
3. Wet rubber portion of new seal seat
with a light coating of soapy water.
While wearing clean gloves or using a
clean light rag, press seal seat
squarely into adapter recess. Avoid
scratching white ceramic surface. If
seat will not position properly, place
a cardboard washer over polished
surface and use a piece of pipe to
press in, firmly but gently.
4. Dispose of cardboard washer. Check
again to see that polished surface is
free of dirt and all other foreign
particles and that it is has not been
scratched or damaged.
5. Wet inside rubber portion of new
seal head with a light coating of
soapy water. Slide head onto
shaft/shaft sleeve. Slide shaft sleeve
with seal head onto motor shaft
(where applicable). Seal head and
seal seat will meet. Reinstall any
shims which have been removed. (See
“Shim Adjustment” section.)
6. Replace impeller key (where
applicable), and impeller. Replace
impeller seal (where applicable)
before screwing impeller fastener in
place.
7. Reassemble pump.
8. A short “run-in” period may be
necessary to provide completely leak
free seal operation.
SHIM ADJUSTMENT
When installing a replacement impeller
(Ref. No. 12) or motor (Ref. No. 1), it
may be necessary to adjust the number
of shims (Ref. No. 11) to insure proper
running clearance between impeller
and casing (Ref. No. 14). Proceed as
follows:
NOTE: A proper running clearance is
less than 0.010”.
1. For impeller replacement, add one
0.010” shim in addition to those
removed originally.
2. For motor replacement, add two
0.010” shims in addition to shims
removed during disassembly.
3. Reassemble pump as described in
Steps 6 and 7. (See “Installation of
New Seal” section.)
IMPORTANT: Insure that casing is
snugly in place and check shaft to
make sure it is turning freely (rotate
impeller by impeller fastener, Ref. No.
13, with a wrench). If it turns freely,
check to insure that adapter (Ref. No.
3) and casing are fitted “metal to
metal“ where they meet on outside.
If they are not “metal to metal“,
tighten fasteners (Ref. No. 6) and
recheck shaft for free turning.
Tighten carefully, turning shaft while
tightening so that motor bearings are
not damaged in the event that too
many shims were installed. If shaft
seizes before fasteners are completely
tight, disassemble pump and remove
one shim and repeat reassembly.
Specifications Information and
Repair Parts Manual
Centrifugal Pumps
Cast Iron & Bronze Models
3150 thru 315E and
4240 thru 4261
6
Maintenance (Continued)

7
Notes
Specifications Information and
Replacement Parts Manual
3150 thru 315E and
4240 thru 4261

Notes
8
Specifications Information and
Repair Parts Manual 3150 thru 315E and
4240 thru 4261