3899-97_IOM_Manual

3899-97_IOM_Manual
3899-97 & 3899-99
Specifications Information and Repair Parts Manual
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. AMT reserves the right to discontinue any model or change specifications at any time without incurring any obligation.
©2012 American Machine & Tool Co., Inc. of PA, A Subsidiary of The Gorman-Rupp Company, All Rights Reserved.
Periodic maintenance and inspection is required on all pumps to insure proper operation. Unit must be clear of debris and sediment. Inspect for leaks and loose bolts. Failure to do so
voids warranty.
1½ -Inch Self-Priming Centrifugal
Pedestal Pumps
Refer to pump manual 1808-635-00 for General Operating and Safety Instructions.
DESCRIPTION
These self-priming centrifugal pumps are used for continuous transfer pumping of chemicals from tanks and sumps, and in chemical process and batch lines,
waste water treatment and agricultural pumping applications. Pumps self-prime (after filling pump casing) to 6 feet suction lift and will handle liquids with entrapped gases. Maximum viscosity is 100 SSU. Casing working pressure to 75 psi (517 kPa). For use with nonflammable, non-abrasive liquids compatible with
pump component materials.
PERFORMANCE
316 STAINLESS STEEL UNITS
Stainless steel pumps will handle many acids, alkalis, caustics, solvents, brines
and other fluids compatible with Type 316 stainless steel body and impeller,
and Teflon mechanical seal (comprised of ceramic seat, carbon head and 316
stainless steel spring). Handle liquids from 40º to 250º F (4º to 121º C).
GPM of Water At Total Head in Feet
BRONZE UNITS
10’
20’
30’
40’
50’
60’
Shutoff*
123
113
99
82
61
26
63 ft.
(*) To convert to psi, multiply by specific gravity and divide
by 2.31
Bronze units handle many acids and organic material compatible with bronze
body, 316 stainless steel impeller, and Viton mechanical seal (comprised of
ceramic seat, carbon head and stainless steel spring). Handle liquids from 40º
to 200º F (4º to 93º C). All units are for use with non-flammable, non-abrasive
liquids compatible with pump component materials.
MAINTENANCE
SPECIFICATIONS
Weight
3899-97...................................................................................................34 lbs.
3899-99...................................................................................................30 lbs.
HP Required..............................................................................2 @3450 RPM
Max. Specific Gravity....................................................................................1.1
Make certain that the unit is disconnected and locked out from the power
source before attempting to service or remove any components. If power
disconnect is out-of-sight, lock it in open position and tag to prevent
application of power.
Figure 1 - Dimensions
3890-252-00
1
10/2012
3899-97 & 3899-99
Specifications Information and Repair Parts Manual
1½ -Inch Self-Priming Centrifugal Pedestal Pumps
MECHANICAL SEAL REPLACEMENT
Refer to Figures 2, 3 and 4.
IMPORTANT: Always replace both seal seat (Ref. No. 8) and seal head (Ref.
No. 9) to insure proper mating of components! It is recommended that impeller
seal (Ref. No. 4) also be replaced when replacing shaft seal.
1. Unthread fasteners (Ref. No. 13) and remove casing (Ref. No. 2) and
casing seal (Ref. No. 10).
2. Unscrew impeller fastener (Ref. No. 3) from shaft (fastener unscrews
CCW looking at shaft).
3. Unscrew impeller (Ref. No. 5) from shaft. Remove impeller seal. Also,
remove shims (Ref. No. 6) DO NOT LOSE SHIMS.
4. Pry seal seat from recess of impeller. Use caution so as not to damage or
remove seal seat pin (Ref. No. 7) on Teflon seal equipped units.
5. Remove the adapter and casing cover (Ref. Nos. 12 and 11) by unthreading
fasteners (Ref. Nos. 21 and 23).
6. Press seal head from rear of casing cover.
7.
Figure 3 - Mechanical Seal Replacement
If impeller is replaced, seal assembly should also be replaced as seal is
usually damaged in disassembly. Also replace impeller washer.
Clean casing cover and impeller seal recesses and shaft. Make certain all
surfaces are perfectly clean before installing new seal parts.
SHIM ADJUSTMENT
When installing a replacement impeller (Ref. No. 5), casing (Ref. No. 2), casing
cover (Ref. No. 11), adapter (Ref. No. 12), pedestal (Ref. No. 24), stub shaft
(Ref. No. 18) or shaft (Ref. No. 26), it may be necessary to adjust number of
shims (Ref. No. 6) to ensure proper running clearance between impeller and
casing. Proceed as follows:
Handle seal parts with extreme caution and keep them clean. Do not
touch polished seal faces with your hands. Do not apply lubricants on
seal faces. This could cause a leak or premature seal failure.
8. Apply a light coat of sealing compound to new seal head (See Figure 2)
and press it into casing cover recess using proper size tube or installation
tool (See Figure 2). DO NOT press on carbon face or top of metal cup of
the seal head. Install using flange only.
9. Slide adapter and casing cover assembly onto mounting face. Attach with
fasteners .
10. Press new seal seat squarely into impeller recess. Align slot in seal seat
with seal seat pin on Teflon equipped units. Avoid scratching polished
surface.
NOTE: Use a soft, clean piece of cloth on seal seat face when installing to
prevent marring.
11. Replace any shim washers which may have been removed in disassembly
(see SHIM ADJUSTMENT). Screw the impeller back in place, tightening
until it is firmly seated.
12. Install impeller seal and install and tighten impeller lock nut.
13. Reinstall seal on casing cover rabbet. Remount casing with fasteners.
NOTE: Always flush pump thoroughly before use so as not to contaminate
liquid being pumped.
NOTE: A proper running clearance is less than 0.010”. (Face of impeller to
mating face of casing.)
1. Add two (0.010”) shims in addition to those removed originally.
2. Reassemble pump as described in Steps 11, 12, and 13.
IMPORTANT: Ensure that casing is snugly in place and check shaft to make
sure it is turning freely. If it turns freely, check to ensure that adapter casing
cover and casing are fitted “metal to metal” where they meet on outside. If they
are not “metal to metal”, tighten fasteners (Ref. No. 13) and recheck shaft for
free turning. Tighten carefully, turning shaft while tightening so that 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 (0.010”) shim and repeat reassembly.
BEARING HOUSING SERVICE
1.
2.
3.
4.
5.
6.
7.
8.
Figure 2 - Seal Installation Tool
3890-252-00
2
Remove pump head assembly (See “Mechanical Seal Replacement”)
Remove shaft bearings (Ref. No. 25) and shaft (Ref. No. 26) as an
assembly by first removing retaining ring (Ref. No. 29) and wave washer
(Ref. No. 28).
Push shaft/bearing assembly out of the bearing housing (Ref. No. 24)
by rapping on pump end of shaft with soft mallet, or block of wood and a
hammer.
Shaft bearings can now be removed from shaft.
If shaft bearings have been removed from shaft and bearing housing,
replace by sliding bearing or shaft to shoulder.
Replace shaft bearing assembly by sliding assembly into housing, pump
end first. Push shaft bearing assembly completely in by gently tapping on
keyway end of shaft with soft mallet.
Replace wave washer and snap ring.
Reassemble pump to pedestal (See “Mechanical Seal Replacement”).
10/2012
3899-97 & 3899-99
Specifications Information and Repair Parts Manual
1½ -Inch Self-Priming Centrifugal Pedestal Pumps
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
Figure 4 - Repair Parts Illustrations
3890-252-00
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10/2012
3899-97 & 3899-99
Specifications Information and Repair Parts Manual
Repair Parts List
Part Number for Models
Ref
3899-97
3899-98
Description
Bronze
Stainless Steel
1
Pipe Plug
*
*
1
2
Casing
2105-016-01
2105-001-01
1
3
Impeller Fastener
1784-001-00
1784-001-00
1
4
Impeller Seal
2105-037-00
2105-031-00
1
5
Impeller
2105-009-01
2105-009-01
1
6
Shim Set
1806-044-90
1806-044-90
1
7
Pin
N/A
1652-006-00
1
1641-162-90
1641-162-91
1
No.
8 & 9 Shaft Seal Assembly
Qty
10
Casing Seal
2105-023-00
2105-004-00
1
11
Casing Cover
2105-017-01
2105-003-01
1
12
Adapter
3890-032-08
3890-032-08
1
13
Fastener
*
*
6
14
Ground Wire
2105-042-00
2105-042-00
1
15
Washer
*
*
1
16
Fastener
*
*
1
17
Fastener
*
*
4
18
Stub Shaft
2105-011-00
2105-011-00
1
19
Clamp Set
2105-012-00
2105-012-00
1
20
Fastener
*
*
2
21
Fastener
*
*
4
22
Fastener
*
*
4
23
Nut
*
*
4
24
Pedestal
3890-090-09
3890-090-09
1
25
Bearing
1695-031-00
1695-031-00
2
26
Shaft
1696-067-00
1696-067-00
1
27
Key
1517-000-00
1517-000-00
1
28
Shim Set
1696-008-90
1696-008-90
1
29
Wave Washer
1806-023-00
1806-023-00
1
29
Retaining Ring
1695-034-00
1695-034-00
1
(†)
Sold as a set only.
(*)
Standard hardware item, available locally.
3890-252-00
4
10/2012
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