Specifications Information and Repair Parts Manual
3826-99
3824-253-00 1
2/2015
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.
©2015 AMT Pump Company, 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.
2-Inch Thermoplastic Dewatering
Pedestal Pump
Refer to pump manual 1808-633-00 for General Operating and Safety Instructions.
DESCRIPTION
This self-priming (to 20 ft. lift) centrifugal pump includes a mechanical seal with carbon/ceramic wear faces and stainless steel spring, Buna N seals, and
a built-in check valve. Clog resistant impeller is capable of handling solids up to 7/16" diameter. Pump includes molded carrying handle, rubber foot
pads, and two 2" NPT pipe nipples. Handles liquids from 40º to 130º F (4º to 54º C). For use with nonflammable, non-abrasive liquids compatible with
pump component materials. Applications include pumping clear, clean water, salt water, and some liquid fertilizers and herbicides. An optional EPDM
Seal/O-ring/Flapper Kit (see Repair Parts List) is available for pumping “Alachlor Herbicides” (such as Monsanto's Lasso). If the fertilizer or herbicide is
not compatible with Buna-N (standard) or EPDM (optional) rubber materials, do not use these pumps.
Performance Chart
Motor
GPM at Total Head in Feet
Requirement
Max
HP
RPM
10'
20'
30'
40'
50'
60'
70'
80'
90'
Head*
3
3600 8,460 7,680 6,840 6,000 5,100 4,140 3,180 2,100 840 94
ft.
(*) Shut-off; to convert to psi, divide by 2.31
MAINTENANCE
Make certain that power source is disconnected before
attempting to service or disassemble any components! If power
disconnect is out-of-sight, lock it in open position and tag to
prevent application of power.
MECHANICAL SEAL REPLACEMENT
Refer to Figures 1, 2, and 3.
IMPORTANT:
Replace seal seat, (Ref. No. 27) and seal head (Ref.
No. 28) at the same time to ensure proper mating of mechanical seal
components!
1.
Unthread fasteners (Ref. No. 21), nuts (Ref. No. 31) and
remove casing (Ref. No. 22) and casing seal (Ref. No. 13)
from adapter (Ref. No. 9). Unthread fasteners (Ref. Nos. 15
and 23) and remove volute (Ref. No. 24) and volute seal
(Ref. No. 12) from adapter.
2.
Unthread impeller fastener (Ref. No. 14) and remove
impeller (Ref. No. 25), impeller seal (Ref. No. 10) and
impeller shims (Ref. No. 32).
NOTE:
To keep shaft from turning, hold impeller while unthreading
impeller fastener.
3.
Pry seal seat from impeller recess with a screwdriver (See
Figure 1).
4.
Remove adapter by unthreading adapter fasteners (Ref.
Nos. 11 & 30) and fastener seals (Ref. No. 10). Press old
seal head and adapter seal (Ref. No. 29) out of adapter by
pushing from engine side.
5.
Clean adapter and impeller seal recesses before installing
new pieces.
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.
Figure 1 – Mechanical Seal Replacement
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