AMT 2827-98 User manual

2761-255-00
Self-Priming Centrifugal Pumps
High Volume Dewatering
Stainless Steel Models
Operating Instructions & Parts Manual XXXXX, XXXXX and XXXXX
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.
Specifications Information 2761-98 thru 282D-98 &
and Repair Parts Manual 2821-98 thru 282M-98
Refer to form 1808-634-00 for General Operating and Safety Instructions.
06/2001
GPM of Water at Total Head in Feet Max.
Model 10’ 20’ 30’ 40’ 50’ 60’ 70’ 80’ 90’ Head*
2827, 282J, 282D, 282F 58 51 44 37 28 18 7 — — 74 ft.
2825, 2826, 282C, 282K 78 72 64 56 46 35 20 — — 78
2821, 2822, 282A, 282B 99 92 84 75 65 54 43 31 15 93
2828, 282L, 282E, 282M 117 112 102 92 82 70 56 42 24 95
2762, 2764, 276B, 276D 111 96 85 75 60 48 30 15 — 86
2761, 2763, 276A, 276C 127 115 103 90 76 60 40 20 — 93
2767, 2766 148 136 123 110 95 82 68 49 30 101
(*) Shut-off; To convert to psi, multiply by SG (specific gravity of liquid), then dived by 2.31.
Performance
Maintenance Make certain
that unit is
disconnected from power source before
attempting to service or remove any
component!
NOTE: The pump casing should be
removed and inspected periodically to
insure that any foreign material is not
clogging internal pump parts. This unit
is equipped with a dual volute pump
casing. One of the volutes runs 180°, all
the way from the side opposite the
discharge into the discharge through a
completely enclosed passageway. If
foreign material clogs this area, it can
be dislodged by using a wire or long
spring.
MECHANICAL SEAL REPLACEMENT
Refer to Figure 1
IMPORTANT: Always replace both seal
seat (Ref. No. 8) and seal head (Ref. No.
9) to ensure proper mating of
components!
1. Unthread fasteners (Ref. No. 6) and
remove casing (Ref. No. 14) and
casing seal (Ref. No. 7) from adapter
(Ref. No. 5).
2. Unscrew impeller fastener (Ref. No.
13), and impeller (Ref. No. 11)
separately by turning each
counterclockwise.
NOTE: Most motors use an open end
7/16” wrench across flats on rear of
motor shaft (remove bearing cap for
access) to prevent shaft from turning.
Other motor shafts have a screwdriver
slot instead of flats.
3. Unscrew fasteners (Ref. Nos. 4 & 18)
and remove adapter, foot (Ref. No.
19), and handle (Ref. No. 3) from
motor (Ref. No.1) mounting face.
Seal head will come loose at this
time.
4. Push seal seat from adapter recess
with a screwdriver.
5. Clean adapter recess before
inserting new seal seat.
6. Carefully wipe polished surface
of new seal seat with a clean cloth.
7. Wet rubber portion of seal seat with
a light coating of soapy water.
8. Press new seal seat squarely into
cavity in adapter. If seal seat does
not press squarely into cavity, it can
be adjusted in place by pushing on
it with a piece of pipe. Always use a
piece of cardboard between pipe
and seal seat to avoid scratching
seal seat. (This is a lapped surface
and must be handled very carefully.)
9. After seal seat is in place, insure
that it is clean and has not been
marred.
10. Using a clean cloth, wipe shaft and
make certain that it is perfectly
clean.
NOTE: If removed, slide slinger washer
(Ref. No. 2) onto shaft until it is located
approximately 1/8” from face of motor
Description
These centrifugal pumps are self-priming (to 20 ft. lift) units designed for high
volume liquid transfer - irrigation, de-watering, lawn sprinkling, etc. They can also
accommodate semi-solids (up to 3/8” dia.), sediment laden liquids, and liquids
with entrained air or gases. Units are constructed of 316 stainless steel and include
Viton elstomers. They are direct coupled to NEMA 56J frame, 3450 RPM motors
which require field wiring, no controls are supplied. Each pump is equipped with
a flapper valve to shorten re-prime time. Handles liquids from 40º to 200º F (4º to
93º C). For use with non-flammable, non-abrasive liquids compatible with pump
component materials.

bearing hub.
11. Secure adapter, foot, and handle on
motor mounting face. Carefully
guide motor shaft through seal seat.
12. Apply a light coating of soapy water
to inside rubber portion of seal
head and slide onto shaft (with
sealing face first) so that rubber
portion is just up over shaft
shoulder.
Do not touch or
wipe polished face
of seal head.
13. Replace any impeller shims (Ref. No.
10) which may have been removed
in disassembly. (See "Shim
Adjustment"below.)
14. Screw impeller back into place,
tightening until it is against
shaft shoulder.
15. Replace impeller nut, and tighten
until snug.
16. Remount casing and casing seal on
adapter.
SHIM ADJUSTMENT
When installing a replacement impeller
(Ref. No. 11) or motor (Ref. No. 1), it
may be necessary to adjust number of
shims (Ref. No. 10) to insure proper
running clearance between impeller
and casing. 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 those
removed during disassembly.
3. Reassemble the pump as described
in steps 15, 16 & 17.
IMPORTANT: Ensure that casing is
snugly in place and check shaft to make
sure it is turning freely (use screwdriver
slot in motor to turn shaft). If it turns
freely, check to insure that adapter and
casing are fitted tight together. If they
are not, tighten fasteners (Ref. Nos. 4, 6
and 18) 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.
2
Self-Priming Centrifugal Pumps
High Volume Dewatering
Stainless Steel Models
2761-98 thru 276D-98 &
2821-98 thru 282M-98
Specifications Information
and Repair Parts Manual
DRIVER PUMP
Power Supply Suction x Weight
Model HP Enclosure @60 Hz Discharge* (lbs.)
2827-98 1/2 ODP 115/230VAC, 1 Phase 11/2” x 11/2”47
282J-98 1/2 ODP 230/460VAC, 3 Phase 11/2x 11/250
282D-98 3/4 TEFC 115/230VAC, 1 Phase 11/2x 11/252
282F-98 3/4 TEFC 230/460VAC, 3 Phase 11/2x 11/249
2825-98 3/4 ODP 115/230VAC, 1 Phase 11/2x 11/250
2826-98 3/4 ODP 230/460VAC, 3 Phase 11/2x 11/249
282C-98 1 TEFC 115/230VAC, 1 Phase 11/2x 11/254
282K-98 1 TEFC 230/460VAC, 3 Phase 11/2x 11/250
2821-98 11/2ODP 115/230VAC, 1 Phase 11/2x 11/262
2822-98 11/2ODP 230/460VAC, 3 Phase 11/2x 11/258
282A-98 2 TEFC 115/230VAC, 1 Phase 11/2x 11/274
282B-98 2 TEFC 230/460VAC, 3 Phase 11/2x 11/268
2828-98 2 ODP 115/230VAC, 1 Phase 11/2x 11/269
282L-98 2 ODP 230/460VAC, 3 Phase 11/2x 11/268
282E-98 3 TEFC 230VAC, 1 Phase 11/2x 11/279
282M-98 3 TEFC 230/460VAC, 3 Phase 11/2x 11/279
2762-98 11/2ODP 115/230VAC, 1 Phase 2 x 2 68
2764-98 11/2ODP 230/460VAC, 3 Phase 2 x 2 69
276B-98 2 TEFC 115/230VAC, 1 Phase 2 x 2 79
276D-98 2 TEFC 230/460VAC, 3 Phase 2 x 2 68
2761-98 2 ODP 115/230VAC, 1 Phase 2 x 2 74
2763-98 2 ODP 230/460VAC, 3 Phase 2 x 2 67
276A-98 3 TEFC 230VAC, 1 Phase 2 x 2 78
276C-98 3 TEFC 230/460VAC, 3 Phase 2 x 2 76
2767-98 3 ODP 230VAC, 1 Phase 2 x 2 75
2766-98 3 ODP 230/460VAC, 3 Phase 2 x 2 74
(ODP) Open Drip Proof; (TEFC) Totally Enclosed Fan Cooled
(*) Standard NPT (female) pipe thread.
NOTE: Driver data is subject to change without notice, see label on driver for actual specifications.
Specifications
Maintenance (Continued)

3
Specifications Information
and Repair Parts Manual
For Repair Parts, contact dealer where pump was purchased.
2821-98 thru 282M-98
Please provide following information:
-Model number
-Serial number (if any)
-Part description and number as shown in parts list
1 Motor -1 Phase ODP 1626-009-00 1626-010-00 1626-012-00 1626-024-00 1
-3 Phase ODP 1626-013-00 1626-014-00 1626-016-00 1626-025-00
-1 Phase TEFC 1626-051-00 1626-069-00 1626-070-00 1626-071-00
-3 Phase TEFC 1626-052-00 1626-077-00 1626-054-00 1626-072-00
2 Slinger washer 1534-000-00 1534-000-00 1534-000-00 1534-000-00 1
3 Handle 1515-000-00 1515-000-00 1515-000-00 1515-000-00 1
4 Fastener ****2
5 Adapter 2820-031-01 2820-031-01 2820-031-01 2820-031-01 1
6 Fastener ****8
7 Casing seal -Viton ****1
8&9 † Shaft seal assembly -Viton 1640-161-91 1640-161-91 1640-161-91 1640-161-91 1
10 Impeller shim set 1657-000-90 1657-000-90 1657-000-90 1657-000-90 1
11 Impeller 2827-010-01 2827-010-02 2823-010-02 2823-010-03 1
12 Impeller fastener 1784-001-00 1784-001-00 1784-001-00 1784-001-00 1
13 Casing 1497-003-01 1497-003-01 1497-003-01 1497-003-01 1
14 Pipe plug ****3
15 Flapper valve assembly -Viton 2820-304-90 2820-304-90 2820-304-90 2820-304-90 1
16 Suction plate 2820-050-01 2820-050-01 2820-050-01 2820-050-01 1
17 Fastener ****2
18 Foot 1506-000-00 1506-000-00 1506-000-00 1506-000-00 1
19Washer ****2
∆‡ Seal kit -Viton (standard) 2820-304-98 2820-304-98 2820-304-98 2820-304-98 1
∆‡ Seal kit -Viton & sil. carb. (optional) 2820-305-98 2820-305-98 2820-305-98 2820-305-98 1
∆‡ Seal kit -Buna N (optional) 2820-303-98 2820-303-98 2820-303-98 2820-303-98 1
(∆) Not shown; (*) Standard hardware item, available locally; (‡) Includes all required seals Ref. Nos. 7, 8, 9, 15; (†) Seal head
and seat available as set only.
Part Number for Models:
2827-98 (1/2HP) 2825-98 (3/4HP) 2821-98 (11/2HP) 2828-98 (2HP)
282J-98 (1/2HP) 2826-98 (3/4HP) 2822-98 (11/2HP) 282L-98 (2HP)
Ref. 282D-98 (3/4HP) 282C-98 (1HP) 282A-98 (2HP) 282E-98 (3HP)
No. Description 282F-98 (3/4HP) 282K-98 (1HP) 282B-98 (2HP) 282M-98 (3HP) Qty.
Figure 1 – Repair Parts
Illustration
Repair Parts List
12
14
13
14
15
16
18
19 17

4
2761-98 thru 276D-98
Specifications Information
and Repair Parts Manual
For Repair Parts, contact dealer where pump was purchased.
Please provide following information:
-Model number
-Serial number (if any)
-Part description and number as shown in parts list
1 Motor -1 Phase ODP 1626-012-00 1626-024-00 1626-026-00 1
-3 Phase ODP 1626-016-00 1626-025-00 1626-027-00
-1 Phase TEFC 1626-070-00 1626-071-00 —
-3 Phase TEFC 1626-054-00 1626-072-00 —
2 Slinger washer 1534-000-00 1534-000-00 1534-000-00 1
3 Handle 1515-000-00 1515-000-00 1515-000-00 1
4 Fastener * * * 4
5 Adapter 2820-031-01 2820-031-01 2820-031-01 1
6 Fastener * * * 8
7 Casing seal -Viton * * * 1
8&9 † Shaft seal assembly -Viton 1640-161-91 1640-161-91 1640-161-91 1
10 Impeller shim set 1657-000-90 1657-000-90 1657-000-90 1
11 Impeller 2823-010-04 2823-010-05 2823-010-06 1
12 Impeller fastener 1784-001-00 1784-001-00 1784-001-00 1
13 Casing 2760-003-01 2760-003-01 2760-003-01 1
14 Pipe plug * * * 3
15 Flapper valve assembly -Viton 2760-304-90 2760-304-90 2760-304-90 1
16 Suction plate 2760-050-01 2760-050-01 2760-050-01 1
17 Fastener * * * 4
18 Foot 1506-000-00 1506-000-00 1506-000-00 1
19 Washer * * * 2
∆‡ Seal kit -Viton (standard) 2760-304-98 2760-304-98 2760-304-98 1
∆‡ Seal kit -Viton & sil. carb. (optional) 2760-305-98 2760-305-98 2760-305-98 1
∆‡ Seal kit -Buna N (optional) 2760-303-98 2760-303-98 2760-303-98 1
(∆) Not shown; (*) Standard hardware item, available locally; (‡) Includes all required seals Ref. Nos. 7, 8, 9, 15; (†) Seal head
and seat available as set only.
Part Number for Models:
2762 (11/2HP) 2761 (2HP) 2767 (3HP)
2764 (11/2HP) 2763 (2HP) 2766 (3HP)
Ref. 276B (2HP) 276A (3HP)
No. Description 276D (2HP) 276C (3HP) Qty.
Figure 2 – Repair Parts
Illustration
Repair Parts List
12
14
13
14
15
16
18
19 17