Product Manual

ManualsBrandsIPT Pumps ManualsCentrifugal PumpsIPT Cast Iron Self-Priming Centrifugal Sewage/Trash Water Pump — 4in. Ports

Specifications Information and Repair Parts Manual 316A-95, 316B-95, 393A-95, 393B-95

394A-95 , 394B-95, 394E-95, 394F-95, 399C-95

394E-250-00 10/2010

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.

Periodic m ainten ance and inspection is req uired on all pum ps to insure proper opera tion . Unit m ust be clear of debris and sedim ent. Inspect for leak s and

lo ose bolts. Failure to d o so voids warranty.

Sewage/Trash Pumps

Refer to pump manual 1808-634-00 for General Operating and Safety Instructions.

Description

This sewage/trash pump is a heavy duty, centrifugal, motor

driven, self-priming (to 20 ft. lift) unit. Pump is equipped with a

Silicon Carbide mechanical seal, cast iron wear surfaces, and

a stainless steel clog-resistant impeller. Units are used to

handle water containing sewage, stones, sticks, mud and

other solids: maximum diameter ½ the discharge NPT size.

Handle liquids from 40º to 180º F (4º to 82º C) for use with

nonflammable fluids compatible with pump component

materials. All units come with built-in suction check valve to aid

priming efficiency, and easily removable casing/clean out

cover and volute for quick debris clean out. An NPT threaded

seal wash port is provided on Models 393A-95, 393B-95,

394A-95, 394B-95, 394E-95, 394F-95 and 399C-95. Units are

or three phase power. Motor includes stainless steel shaft or

stainless steel shaft sleeve.

Unpacking

Refer to Repair Parts Illustration and Repair Parts List to aid in

identifying parts. Unpack and separate all pump components

from container, making sure all parts are accounted for.

Package should contain:

1. Pump and motor completely assembled.

2. Suction strainer.

3. Specifications Information & Repair Parts Manual.

4. General Operating Instructions & Maintenance Manual.

Maintenance

Note: For information pertaining to the motor and motor parts,

consult the motor manual or contact the nearest authorized

service representative or the manufacturer.

Make certain that the unit is

disconnected from the power source

before attempting to service or remove

any component.

MECHANICAL SEAL REPLACEMENT

Should the mechanical seal, which consists of seal seat (Ref.

No. 6), seal cartridge (Ref. No. 5), and shaft sleeve (Ref. No.

19, if applicable) require replacement, proceed as follows and

refer to Figures 1 and 2. The seal should also be replaced if

the adapter (Ref. No. 8) is to be replaced. To identify seal

failure, see Troubleshooting Chart.

Figure 1 Figure 2

NOTE: Always replace the seal seat, seal cartridge, and shaft

sleeve to ensure proper mating of mechanical seal

components!

1. Unthread bolts (Ref. No. 9) and remove casing (Ref. No.

1) from adapter.

2. Unthread screw(s) (Ref. No. 11) and remove volute from

adapter.

3. 316A-95 and 316B-95 (Figure 1):

Remove impeller lock nut (Ref. No. 18). Unscrew impeller

(Ref. No. 3) from the motor shaft. Use a rubber mallet or

soft block of wood to loosen impeller. Turn it counter-

clockwise. Remove the impeller shim (Ref. No. 4) and

seal cartridge (Ref. No. 5).

4. 393A-95, 393B-95, 394A-95, 394B-95, 394E-95, 394F-95,

and 399C-95 (Figure 2): Using an Allen wrench, remove

the impeller lock bolt (Ref. No. 18) and O-ring (Ref. No.

25). Slide impeller off motor shaft. Remove the impeller

shim (Ref. No. 4), shaft sleeve (Ref. No. 19), and seal

cartridge (Ref. No. 5).

IMPORTANT: Care should be taken to insure that the same

number of impeller shims (Ref. No. 4) are replaced behind the

impeller as were removed. These impeller shims are located

directly behind impeller. These shims as well as the impeller

key (Ref. No. 21) become loose as the impeller is removed.

5. Unthread cap screws (Ref. No. 13) and remove adapter

from motor.

6. Push seal seat (Ref. No. 6) from the adapter recess with a

screwdriver.

7. Clean adapter recess before inserting a new seal seat.

The precision lapped faces on the

mechanical seal are easily damaged.

Handle your replacement seal

carefully.

8. Carefully wipe the polished surface of the new seal seat

with a clean cloth.

9. Wet rubber portion of the seal seat with a light coating of

soapy water.

(continued on page 8)

Summary of content (8 pages)

PAGE 1
Specifications Information and Repair Parts Manual 316A-95, 316B-95, 393A-95, 393B-95 394A-95 , 394B-95, 394E-95, 394F-95, 399C-95 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.
PAGE 2
Specifications Information and Repair Parts Manual 316A-95 and 316B-95 For Repair Parts, contact dealer where pum p was purchased.
PAGE 3
Specifications Information and Repair Parts Manual 393A-95 and 393B-95 For Repair Parts, contact dealer where pum p was purchased. P lease provide following inform ation: -Model num ber -S erial num ber (if any) -P art description and num ber as shown in parts list Figure 4 - Repair Parts Illustration Repair Parts List Ref.
PAGE 4
Specifications Information and Repair Parts Manual 394A-95 & 394B-95 For Repair Parts, contact dealer where pum p was purchased.
PAGE 5
394A-95 & 394B-95 Specifications Information and Repair Parts Manual Repair Parts List Ref. No. Description 1 2 3 4 5&6 7 8 9 10 11 12 13 13 14 14 15 16 17 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Casing Volute Impeller kit (includes 3, 4, 18 & 21) Impeller shim set (also included w/Ref. #3) Seal assembly, Viton/Silicon Carbide O-ring size #276, Buna-N (included w/Ref.
PAGE 6
Specifications Information and Repair Parts Manual 394E-95, 394F-95, 399C-95 For Repair Parts, contact dealer where pum p was purchased.
PAGE 7
Specifications Information and Repair Parts Manual 394E-95, 394F-95 and 399C-95 Repair Parts List Ref. No.
PAGE 8
Specifications Information and Repair Parts Manual IMPELLER, WEARPLATE, AND VOLUTE REPLACEMENT Impeller (Ref. No. 3), wearplate (Ref. No. 23) and volute (Ref. No. 2) are subject to wear only by abrasive sand or sediment laden liquids. If badly worn, all these parts can be replaced easily and the pump thus restored to full efficiency.