American machine & tool 25fp series Assembly instructions

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Specifications Information and Repair Parts Manual 25FP Series

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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 maintenance and inspection is required on all pumps to ensure proper operation. Unit must be clear of debris and sediment. Inspect for leaks and loose bolts. Failure

to do so voids warranty.

25FP Fire Pump Series

Refer to pump manual 1808-633-00 for General Operating and Safety Instructions.

DESCRIPTION

This is a single-stage centrifugal pump designed for agriculture or firefighting service. It is close coupled to an internal combustion engine air cooled

engine and protected by a roll frame equipped with four carry handles. The pump is compact and light weight designed for portability. Pump construction

is rugged and allows for easy maintenance.

Units are designed to handle clean water or water containing small (1/16” maximum spherical diameter) solids. Suction and discharge ports are 2-1/2”

NPT threaded. Discharge includes a built in bronze check valve to allow use of an exhaust or hand operated priming system.

Liquid temperature range is 40°F to 180° (4°C to 82°C). Maximum casing pressure is 180 psi (1240 kPa). For use with nonflammable liquids that are

chemically compatible with pump component materials.

SPECIFICATIONS

Suction inlet…………………………………………….2-1/2” NPT Female

Discharge outlet……………………………………….2-1/2” NPT Female

Dimensions overall (Length x Width x Height)

25FP13AR & 25FP13HR..…………………………….….(32” x 32” x 25”)

25FP23AR………………………………………….………(41” x 32” x 25”)

Engine and fuel tank size

25FP13AR………………………………………..…..B&S Vanguard 13HP

25FP13HR…………………………………………….…...…Honda GX390

25FP23AR.............................................................B&S Vanguard 23HP

25FP10YR……………………………………………….…….Yanmar L100

BASIC CONSTRUCTION

Pump is constructed of cast aluminum. Engine shaft is sealed with a self-

lubricating mechanical seal that consists of a silicon carbide stationary ring,

carbon rotating head, stainless steel spring and Viton® elastomer.

Discharge flange gasket and casing O-ring are Viton®.

UNPACKING

Refer to repair parts illustration and parts list to aid in identifying pump

components. Unpack and separate all pump components from

shipping/packaging materials, making sure all parts are accounted for.

Retain all manuals for future reference.

Package should contain:

 Pump/engine completely assembled and mounted in roll frame.

 Rubber feet with fasteners bag.

 Frame handle parts bag.

 Frame panel and parts bag.

 Engine owner’s manual

 Pump general safety manual,

 Specifications information and repair parts manual.

ASSEMBLY

Roll Frame Handle Assembly:

1. Install pivot bearing (A6) in frame hole. Ends of bearing must be

flush with outside of frame rail.

2. Hold handle (A3) perpendicular to frame tube.

3. Slide handle end ears over frame tube until handle tube end

contacts frame.

4. Align handle ear hole with bearing in frame.

5. Install pivot pin (A5) and pin end cotter (A7).

6. Install lock pin (A4) in other handle ear hole. Secure with cotter

(A7).

7. Handle can be locked in the up or down position with lock pin.

8. Repeat procedure for [3] three remaining handles.

Roll Frame Panel Assembly:

1. Slide panel mounting brackets (A10) over frame tube where

panel will be positioned.

2. Align slots in end of panel (A9) with holes in mounting brackets.

3. Fasten panel to brackets with bolts (A11) and nuts (A12)

provided.

Rubber Feet Assembly:

1. Install bolt (A20) through rubber foot (A19) center hole.

2. Slide bolt through hole provided in lower tube of roll frame.

3. Fix in position with nut (A21).

4. Repeat for [3] three remaining feet.

Battery Tray Assembly:

1. Locate battery tray (A14) on frame rail.

2. Install mounting bolts (A15) with washers (A16), and nuts (A17).

3. Install “J” bolts in tray slots.

4. Install hold down angle on “J” bolt threaded ends, fix with wing

nuts.

Install Battery:

1. Maximum battery size is 5-1/4” wide X 7-3/4” long, 230 CCA

(Cold Cranking Amps) or greater U1/U1R Lawn and Garden

battery.

2. Position battery in tray with (+) terminal towards engine end of

frame and (-) battery terminal towards pump end of frame.

3. Hold battery in position with hold down angle, “J” bolts, and wing

nuts.

4. Connect engine starter red cable to battery (+) terminal and

ground black cable to (-) terminal with fasteners (not provided).

Fuel Tank Frame Assembly: [25FP23AR]

1. Position fuel tank frame (A32) on roll frame.

2. Align holes in tank frame ears with holes in roll frame tubes and

cross member.

3. Install mounting bolts (A33 & A34) and nuts (A35) securing tank

frame to roll frame.

4. Install fuel line from bottom of tank to fuel pump on engine with

hose clamp provided.

5. Install purge line from top of tank to engine purge line with

connector and hose clamp.

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25FP Fire Pump Series

INSTALLATION

Review all safety information located in pump safety manual.

Follow the instructions on all tags, labels and decals attached to the

pump.

Since pump installations are seldom identical, this section offers only general

recommendations and practices required to inspect, position, and arrange

the pump and piping.

Most of the information pertains to a standard static lift application where the

pump is positioned above the free level of liquid to be pumped.

If installing in a flooded suction application where the liquid is supplied to the

pump by gravity or under pressure, some of the information such as

mounting, line configuration, and priming must be tailored to the specific

application. Be sure to limit the incoming pressure if required so the

maximum casing pressure does not exceed 180 psi (1240 kPa).

Pre-installation Inspection

The pump assembly was inspected before shipment from the factory. Before

installation, inspect the pump for damage which may have occurred during

shipment or in storage. Check as follows:

 Inspect pump casing for cracks, dents, damaged threads, and

other obvious damage.

 Check for and tighten any loose fasteners.

 Carefully read all hang tags, labels, and markings on the unit, and

follow the instructions indicated.

 Check oil level in engine, follow manufacturer’s recommendations

listed in engine manual.

 If unit has been stored for more than 12 months, replace engine

oil, drain any fuel and replace with fresh fuel.

 Check condition of suction strainer, clean if clogged with debris.

Positioning Pump

This pump is light weight. Pump/engine is mounted in a roll frame that has

(4) four lifting handles built in. Handle has (2) two pins installed. The pivot pin

goes through handle end plates and directly through frame tube. Second is

the lock pin, it goes through handle end plates only.

To raise and lower handles:

 Remove cotter from lock pin end.

 Remove lock pin.

 Swing handle tube up perpendicular to frame tube.

 Install lock pin, fix with cotter.

 To lower handle remove lock pin, swing handle down, reinstall

lock pin.

Lift and carry pump/engine/battery only with handles. Remove suction and

discharge lines and all accessories from pump before lifting.

Mounting

Locate the pump in an accessible area as close as practical to the liquid

being pumped.

Pump should be leveled if possible by shimming under rubber feet. For

proper pump/engine operation unit should be within 15° of level. Continuous

operation outside this limit may cause engine/pump damage.

System Piping/Hose

Flow through the system is reduced by increased suction lift, increased

discharge elevation or discharge nozzle pressure, and increased friction

losses.

 Keep suction and discharge lines as short and direct as possible

to reduce friction losses. If elbows are necessary in discharge line

use long-radius type when possible.

 Do not operate with coiled-up suction or discharge hose.

 Do not use valves in the suction line unless absolutely necessary.

Suction Lines

The suction line must be as short and direct as possible. When operating

pump under a suction lift condition:

 To avoid air pockets which could affect pump priming, the line

must always slope upward to the pump from the liquid source. If

the line slopes down at any point along the suction run air pockets

will be created.

 Hose or pipe size must match pump suction size.

 The maximum vertical lift cannot exceed 20 feet (6.1 meters).

 If hose is used for the suction line it must be the rigid wall

reinforced type to prevent collapse under suction.

 Fittings are not recommended in the suction line.

Strainers

Use a suction strainer with ¼” maximum diameter holes on end of suction

line. A suction strainer will help remove large solids that could clog the

pump impeller and casing.

Discharge Lines

Use hose or piping that is rated above the maximum system line pressure.

To reduce friction head keep line as short and direct as possible. Make

minimum use of elbows and fittings, since those two items substantially

increase friction loss in the discharge line.

Do not terminate the discharge line at a level lower than that of the liquid

being pumped unless a siphon breaker is used in the line. Otherwise, a

siphoning action causing damage to the pump could result.

Valves

A check valve in the discharge is normally recommended, but it is not

necessary in low discharge head applications.

If a throttling valve is desired in the discharge line, use a valve as large as

the largest pipe to minimize friction losses. Never install a throttling valve in

the suction.

With high discharge heads, it is recommended that a throttling valve and a

system check valve be installed in the discharge line to protect the pump

from excessive shock pressure and reverse rotation when it is stopped.

Connections to Pump

Since even a slight leak will affect priming, head, and capacity, especially

when operating with a high suction lift, all threaded connections in the

suction line must be sealed with pipe sealant to ensure an air tight seal.

Check all hose connection gaskets; replace any that are cracked, worn or

no longer elastic.

Suction Lines in Sumps/Pits

If a single suction line is installed in a sump, it should be positioned away

from the wall of the sump at a distance equal to 1-1/2 times the diameter of

the suction line.

If there is a liquid flow from an open pipe into the sump, the flow should be

kept away from the suction inlet because the inflow will carry air down into

the sump and air entering the suction line will reduce pump efficiency.

If it is necessary to position the inflow close to the suction inlet, install a

baffle between the inflow and the suction inlet at a distance 1-1/2 times the

diameter of the suction line.

Suction Line Positioning

The depth of the suction line is critical to efficient pump operation. Make

certain end of suction line is far enough under the liquid surface. If a vortex

is noticed at suction line end submerge end deeper.

OPERATION

Review all SAFETY information in pump General Safety Manual.

Follow the instructions on all tags, labels and decals attached to

the pump.

Priming

Install the pump and piping as described in INSTALLATION section of this

manual. Make sure that all connections are air tight and the pump is

positioned level on a solid foundation.

Since this pump is not self-priming, it is equipped with either an exhaust

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25FP Fire Pump Series

primer or a hand operated diaphragm priming pump.

Exhaust Primer

The exhaust primer utilizes engine exhaust gases directed through a

venturi to create a vacuum and draw air out of the suction line and pump

casing.

The exhaust primer is capable of priming a pump with a maximum priming

lift of 19 feet (5.79 meters). If the pump does not prime in a reasonable

length of time, check the suction line for leaks.

To prime the pump with the exhaust primer:

 Close the exhaust primer handle (C4) and open ball valve (B32)

in pump suction vacuum line.

NOTE: It may be required to apply a coating of grease/lubricant on the

outer portion of the valve cap (C3) for a better seal to reduce priming time

 Start the engine according to engine manufacturer instructions.

 Operate the engine at maximum throttle speed and allow primer

to remove air from suction until liquid flows from primer ejector

(C7).

 When the pump is fully primed, close the vacuum line valve and

release the exhaust primer handle.

Hand Primer

The hand primer is a positive displacement diaphragm pump. Hand priming

pump is mounted directly to roll frame on a bracket (A37) that includes a

pocket to hold the primer handle (C27). Priming relies on the operator

manually stroking the handle to remove the air from the suction line and

pump casing.

To prime the pump with the hand primer:

 Remove priming pump handle from bracket and install in

priming pump.

 Open ball valve (B32) in pump suction vacuum line.

 Operate pump handle up and down until pump casing is full of

liquid and water starts to enter the priming pump.

 When the pump is fully primed, close the vacuum line valve.

 Start the engine according to engine manufacturer’s

instructions.

Once fully primed, reduce engine speed slightly and slowly open the

discharge throttling valve. The discharge line should be filled slowly to

prevent damage to the piping, hose or gaskets. When the discharge line is

completely filled, adjust the discharge throttling valve and engine speed

until desired operating point is reached.

Leakage

No leakage should be visible at pump mating surfaces or at pump

connections or fittings. Keep all line connections and fittings tight to

maintain maximum pump efficiency.

Liquid Temperature and Overheating

The maximum liquid temperature for the pump is 180°F (82°C). Do not

apply it at a higher operating temperature than is recommended.

Overheating can occur if operated with a closed valve in the discharge

(valves should not be installed in suction line). Operating against a closed

valve could bring the liquid to a boil, build pressure and cause the pump to

rupture or explode. If overheating occurs, stop the pump and allow it to

completely cool before servicing it. Refill the pump casing with cool liquid.

Do not remove plates, covers, gauges, pipe plugs, or fittings from an

overheated pump. Vapor pressure within the pump can cause parts

being disengaged to be ejected with great force. Allow the pump to

completely cool before servicing.

Strainer Check

Check the suction strainer regularly, and clean it as necessary. The

strainer should also be checked if pump flow rate begins to drop. If a

suction vacuum gauge has been installed, monitor and record the readings

regularly to detect strainer blockage. Vacuum reading will increase, at a

given flow rate, if strainer becomes blocked.

Never introduce air, steam, or high water pressure into the casing to

remove blockage in suction line or strainer. This could result in personal

injury or damage to the equipment.

Stopping

Never halt the flow of liquid suddenly. If the liquid being pumped is stopped

abruptly, damaging shock waves can be transmitted to the pump and

piping system. Close all valves slowly.

If the application involves a high static discharge head, gradually close the

discharge throttling valve before stopping the pump. The pump discharge

check valve may be damaged if liquid in the discharge piping suddenly

reverses direction when the engine is stopped.

Cold Weather Preservation

In below freezing conditions completely drain the pump and piping system

to prevent damage from freezing. If the pump will sit idle for more than a

few hours remove the casing and make certain all liquid has been drained.

Clean any solids from casing.

MAINTENANCE

Preventative Maintenance

Since pump applications are seldom identical and pump wear is directly

affected by such things as the abrasive qualities, pressure and temperature

of the liquid being pumped, this section is intended only to provide general

recommendations and practices for preventive maintenance. Regardless of

the application, following a routine preventive maintenance schedule will

help assure trouble free performance and long life from your pump.

Record keeping is an essential component of a good preventive

maintenance program. Changes in suction and discharge gauge readings

(if so equipped) between regularly scheduled inspections can indicate

problems that can be corrected before system damage or catastrophic

failure occurs. The appearance of wearing parts should also be

documented at each inspection for comparison as well. Also, if records

indicate that a certain part (such as the shaft seal) fails at approximately

the same duty cycle, the part can be checked and replaced before failure

occurs, reducing the unscheduled down time. For new applications, a first

inspection of wearing parts at 250 hours will give insight into the wear rate

for your particular application. Subsequent inspections should be

performed at regular intervals. Critical applications should be inspected

more frequently.

 General condition (temperature, unusual noises or vibrations,

cracks, leaks, loose hardware, etc)…DAILY

 Pump performance (gauges, speed, flow)…DAILY

 Impeller wear rings (excessive wear, poor performance)...SEMI-

ANNUALLY

 Mechanical shaft seal (excessive wear, heat damage, leakage,

etc)…SEMI-ANNUALLY

 Discharge check valve/gasket (excessive wear)…SEMI-

ANNUALLY

 Engine lubrication – See Engine Manufacturer’s Service

Manual.

Inspect, clean, and replace components as needed.

PUMP/SEAL DISASSEMBLY & REASSEMBLY

Review all SAFETY information provided in this manual and

pump General Safety Manual.

Follow the instructions on all tags, labels, and decals attached to

the pump.

This pump requires little service. However, if it becomes necessary to

inspect or replace the wearing parts, follow these instructions which are

keyed to repair part lists and repair part explosions.

This manual will alert personnel to known procedures that require special

attention, could damage equipment and could be dangerous to personnel.

However, this manual cannot possibly anticipate and provide detailed

precautions for every situation that might occur during maintenance of the

unit. Therefore, it is the responsibility of the owner/maintenance personnel

to ensure that only safe, established shop procedures are used and that

any procedures not addressed in this manual are performed only after

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establishing that neither personal safety nor pump integrity are

compromised by such practices.

Before attempting to service the pump, switch off the engine ignition

and remove the spark plug or take other precautions to ensure that it

will remain inoperative. Close all valves in the discharge lines.

Before attempting to service the pump:

 Familiarize yourself with this manual.

 Shut down the engine and remove the spark plug wires to ensure

that the pump will remain inoperative.

 Allow the pump to completely cool if overheated.

 Check the temperature before opening any covers, plates or

plugs.

 Close the discharge valve.

 Vent the pump slowly and cautiously.

 Drain the pump.

For engine disassembly and repair, consult the literature supplied with the

engine or contact your local engine service representative.

PUMP DISASSEMBLY

First Step:

1. Disconnect the priming vacuum hose (C31) female SAE fitting

(C34) from the male SAE fitting (B33) installed in the ball valve

(B32).

2. Remove the casing drain plug (B9) and drain the pump casing.

Clean and reinstall the plug.

Remove Casing:

For access to the impeller (B15) and shaft seal assembly (B19 & B20):

1. Remove the nuts (B12) securing the pump casing (B8) to the

intermediate (B3).

2. Remove the casing from the intermediate.

3. Remove the casing o-ring (B21) and clean all mating surfaces.

Inspect the casing wear ring/inlet (B13) for excessive wear or damage. The

wear ring is secured in the casing with a press fit. If replacement is required

remove existing worn ring and replace with a new replacement ring. Be

careful not to damage the casing ring bore when removing existing ring.

Remove Discharge Check Valve Body:

1. Remove the nuts (B27) and separate the check valve body (B24)

from the pump casing.

2. Pull the flange gasket (B22) from the flange studs (B26) and pull

the check valve arm (B25) from the check valve body.

Clean the mating surfaces of both flanges and inspect all parts for wear or

damage.

Remove Impeller:

To remove the impeller (B15):

1. Insert a steel bar or drift pin between the vanes and turn the

impeller in a counter-clockwise direction (when facing the

impeller) while holding the engine crankshaft stationary. Be

careful not to damage the impeller vanes.

Seal Removal and Disassembly:

1. Remove the impeller shims if so equipped, not all pumps will

require shims. Tie and tag the shims or measure and record their

thickness for ease of reassembly.

2. Remove the seal spring and then slide the shaft sleeve (B16)

and rotating portion (B19) of the seal off the engine shaft as a

unit.

3. Slide the rotating portion of the seal off the sleeve.

4. Remove the stationary seal ring (B20) from the intermediate, see

following section.

Remove Intermediate:

1. Remove the nuts (B5) holding the intermediate (B3) to the

engine (B1). Remove the intermediate from the engine.

Inspect the balance ring (B6) if so equipped for excessive wear or damage.

The balance ring is secured in the intermediate by a press fit. If replacement

is required remove existing worn ring and replace by pressing in a new ring.

Use Loctite® or similar thread-locker in bore before pressing in new ring. Be

careful not to damage the intermediate ring bore when removing existing

ring.

Remove and Disassemble Exhaust Primer:

[25FP23AR & 25FP13AR]

1. Remove vacuum hose (C32) female SAE swivel fitting (C34)

from male SAE fitting (B33) installed in casing vacuum ball valve

(B32).

2. Remove the vacuum hose NPT fitting (C33) from the ejector

body (C5).

3. Remove the ejector jet (C7) from ejector body.

4. Remove the ejector body from the venturi (C6).

5. Remove the venturi from the valve body (C2).

All parts unthread counterclockwise. Clean any deposits or buildup on the

parts.

6. To remove the valve body unthread from muffler outlet [25FP23]

or loosen clamp (C11) [25FP13AR] and slide connecting nipple

(C10) off of muffler outlet.

Remove and Disassemble Hand Primer:

The hand primer (C12) [25FP13HR] is a complete unit that requires little

maintenance.

1. Remove vacuum hose (C31) female SAE swivel fitting (C34)

from male SAE fitting (B33) installed in casing vacuum ball valve

(B32).

2. To remove hand primer assembly from mounting bracket (A37)

remove mounting screws (A41). Separate hand primer from

mounting bracket.

3. Remove bolts (C21) and nuts (C22) holding pump body together.

4. Separate lower half (C14) of pump body from upper half (C13).

5. Remove diaphragm (C15) if needed by removing fastener (C17)

holding diaphragm to plunger rod (C23).

6. Remove street elbow (C29) reducing bushing (C28) and check

ball seat bushing (C18) to inspect and/or replace check ball

(C16).

PUMP REASSEMBLY

Seal Reassembly and Installation:

The seal is not normally reused because wear patterns on the finished

faces cannot be realigned during reassembly. This could result in premature

failure. Reuse an old seal only in an emergency situation.

Never mix old and new seal parts. Always replace the shaft seal as a

complete unit.

Handle the seal parts with extreme care to avoid damage to precision

lapped sealing faces.

Clean the shaft sleeve or replace it if there are cuts or nicks on either end.

Remove replacement seal from its packaging and inspect the precision

finished faces to ensure that they are free of any foreign matter. Remove

seal spring retainer, if so equipped. In this pump, the seal spring is centered

on the impeller hub. The spring retainer supplied with the replacement seal

is not needed.

To ease installation of the seal; lubricate the rotating element rubber

bellows and the stationary ring O-ring with soapy water.

1. Install the stationary ring into its bore in the intermediate. Use

thumb pressure to press the ring in until it is fully seated. Be

careful not to damage the seal face.

2. Secure the intermediate to the engine with nuts. Be careful not to

damage the stationary ring on the engine shaft threads.

3. Slide the rotating portion of the seal onto the sleeve until the face

is just flush with the sleeve end. Slide the sleeve onto the shaft

until the seal faces contact. Continue to push the sleeve through

the seal until the sleeve end seats against the shaft collar (B17)

on the engine shaft.

4. Install the seal spring. Make sure that all components of the seal

are seated squarely.

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Install Impeller:

Install impeller shims previously removed, if so equipped. Inspect impeller

and replace if cracked or badly worn.

1. Position impeller on end of engine threaded shaft. Impeller

threads on clockwise. Thread impeller onto shaft until it seats

squarely against shaft sleeve or shims. Make certain that the

seal spring is centered on the impeller hub.

For pumps equipped with a balancing ring [25FP23AR], check for free

rotation of impeller. Make sure there is no binding against balancing ring. A

slight rub is acceptable.

Install Discharge Check Valve Body:

1. Install check valve arm into the check valve body, arm pivot ears

fit into cast pockets in body. Arm must pivot with no binding.

2. Slide flange gasket on check valve body studs.

3. Position check valve body assembly on casing discharge flange,

slide studs into flange holes. Body discharge must point

horizontally to the right when looking at casing suction inlet.

4. Fasten with four nuts.

Reach in discharge and make certain check valve arm operates properly.

Install Casing:

If the wear ring or inlet tube was removed from the casing, apply Loctite® or

similar thread-locker to casing bore. Position a new ring or tube on casing

bore. Press ring or tube into bore until it seats squarely against bore bottom

shoulder.

1. Install casing O-ring on intermediate.

2. Install casing on intermediate.

3. Fasten with nuts and lock washers.

Check that impeller rotates freely with no binding, a slight rub is acceptable,

but engine shaft must rotate freely.

4. Install primer vacuum hose female SAE swivel fitting to male

SAE flare fitting attached to fittings in casing suction nose.

Exhaust Primer Reassembly and Installation:

1. Install valve body on muffler outlet [25FP23AR] or slide nipple

[25FP13AR] onto muffler outlet, fix in position with muffler clamp.

2. Install venturi into valve body.

3. Install ejector body onto venturi.

4. Install ejector jet into ejector body.

5. Install vacuum hose NPT fitting into valve body.

NOTE: All parts thread on clockwise. Use a high temperature thread

sealant. Do not get sealant on venturi or ejector jet high velocity center port.

6. Install SAE female fitting of vacuum hose onto male SAE fitting

that is part of casing vacuum fitting assembly.

Hand Primer Reassembly and Installation:

1. Install new diaphragm if needed on plunger rod, secure with

fastener.

2. Position diaphragm in body groove.

3. Install lower body half to upper half with screws.

Inspect inlet check ball for wear and correct operation, replace as needed.

4. Install new inlet check ball, check ball seat bushing and reducing

bushing into lower body half.

5. Install street elbow and vacuum hose assembly.

6. Install hand primer assembly onto frame mounting bracket with

screws.

7. Install SAE female fitting of vacuum hose onto male SAE fitting

that is part of casing vacuum fitting assembly.

EVAPORATIVE EMISSIONS CONTROL

INFORMATION

(Pertains to gasoline fuel only)

Maintenance

1. Periodically check fuel lines, vent lines, fittings, fuel tank, and

tank cap for damage or leaks. Clean as needed. Replace any

leaking or damaged parts with direct factory replacements or

identical EPA certified equivalents.

2. Replacement fuel lines must have the same SAE rating. Fittings

must be same type and material. Use factory replacement fuel

tank. Tank cap must be metal non-venting type.

Warranty

These warranty statements apply solely to the evaporative emissions

equipment installed on the unit; fuel tank, fuel tank cap, fuel line, tank vent

line, fittings, and valves. For warranty information pertaining to all other

parts see the general AMT warranty at

http://www.amtpump.com/products/PDF/warranty.pdf or contact AMT

directly for a printed copy.

1. The evaporative emissions equipment on gasoline fueled pumps

is designed, built and equipped to conform to current EPA

requirements. They are warranted to be free from defects in

materials and workmanship.

2. Warranty coverage may be denied if a part has failed due to

abuse, neglect, improper maintenance or unapproved

modifications.

3. Warranty period is two years from point of first retail sale.

4. Any warranty claim concerning the evaporative emissions

equipment must be directed to the person who last sold the

pump, a local distributor, or directly to American Machine and

Tool Co. Inc. of PA (AMT).

5. Any part deemed to be defective by AMT will be replaced at no

charge and shipped directly to the end user or distributor for

replacement. AMT may require the end user to first return the

part in question for inspection before replacement parts are

shipped.

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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

Complete Unit 25FP23AR – Figure A

Complete Unit 25FP13HR ONLY – Figure A

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Repair Parts List - Complete Unit (Reference Figure A)

Ref.

Part Number of Model

No.

Description

25FP23AR

25FP13AR

25FP13HR

25FP10YR

Qty.

A1

Roll Frame

C404-100-00

1

A2

Handle Kit

C404-120-90

1

(includes Ref. Nos. A3 to A7)

A3

Handle

Incl. w/A2

4

A4

Lock Pin

Incl. w/A2

2

A5

Pivot Pin

Incl. w/A2

2

A6

Pivot Bearing

Incl. w/A2

4

A7

Hairpin Cotter

Incl. w/A2

8

A8

Panel Kit

C404-102-90

1

(includes Ref. Nos. A9 to A12)

A9

Panel

Incl. w/A8

1

A10

Panel Mounting Bracket

Incl. w/A8

2

A11

Bolt 5/16-18 x 1-1/2”

Incl. w/A8

4

A12

Nut 5/16-18

Incl. w/A8

4

A13

Battery Tray Kit

C404-107-90

1

(includes Ref. Nos. A14 to A17)

A14

Battery Tray & Battery Hold Down

Incl. w/A13

1

A15

Bolt 5/16-18 x ¾”

Incl. w/A13

2

A16

Flat Washer

Incl. w/A13

2

A17

Nut 5/16-18

Incl. w/A13

2

A18

Rubber Foot Kit

C400-100-91

1

(includes Ref. Nos. A19 to A21)

A19

Rubber Foot

Incl. w/A18

4

A20

Bolt 5/16-18 x 1-1/2”

Incl. w/A18

4

A21

Nut 5/16-18

Incl. w/A18

4

A22

Engine Mounting Hardware Kit

25FP-423-90

25FP-420-90

25FP-421-90

1

(includes Ref. Nos. A23 to A25, A23 to A26 [25FP23AR])

A23

Mounting Bolt

Incl. w/A22

4

A24

Flat Washer

Incl. w/A22

4

A25

Hex Nut

Incl. w/A22

4

A26

Raising Block

Incl. w/A22

N/A

2

A27

Casing Foot Kit

C404-105-90

N/A

1

(includes Ref. Nos. A28 to A30)

A28

Casing Foot

Incl. w/A27

N/A

2

A29

Bolt 5/16-18 x ¾”

Incl. w/A27

N/A

2

A30

Nut 5/16-18

Incl. w/A27

N/A

2

A31

Tank Frame Kit

C404-101-90

N/A

1

(includes Ref. Nos. A32 to A35)

(NOTE: Does not include fuel tank, fittings, or tank mounting hardware)

A32

Tank Frame

Incl. w/A31

N/A

1

A33

Bolt 5/16-18 x 1-3/4”

Incl. w/A31

N/A

2

A34

Bolt 5/16-18 x ¾”

Incl. w/A31

N/A

2

A35

Nut 5/16-18

Incl. w/A31

N/A

4

A36

Hand Primer Bracket Kit

N/A

C405-170-90

1

(includes Ref. Nos. A37 to A41)

A37

Mounting Bracket

N/A

Incl. w/A36

1

A38

Bolt 5/16-18 x 1-3/4”

N/A

Incl. w/A36

2

A39

Flat Washer

N/A

Incl. w/A36

2

A40

Nut 5/16-18

N/A

Incl. w/A36

2

A41

Screw 3/8-16 x ¾”

N/A

Incl. w/A36

4

A42

Battery Cable (-) (not shown)

3102-104-90

1

A43

Battery Cable (+) (not shown)

3102-105-90

1

25FP-250-00

8

12/2012

Specifications Information and Repair Parts Manual 25FP Series

x

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

Pump/Engine – Figure B

25FP-250-00

9

12/2012

Specifications Information and Repair Parts Manual 25FP Series

x

Repair Parts List - Pump/Engine (Reference Figure B)

Ref.

Part Number of Model

No.

Description

25FP23AR

25FP13AR

25FP13HR

25FP10YR

Qty.

B1

23HP Vanguard Engine

1639-062-00

N/A

1

13HP Vanguard Engine

N/A

1639-061-00

N/A

1

GX390 Honda Engine

N/A

1639-031-00

N/A

1

L100 Yanmar Diesel

N/A

1639-039-00

1

B2

Intermediate/Adapter Kit

25FP-031-96

25FP-030-96

25FP-032-96

1

(includes Ref. Nos. B3 to B6 – 25FP23AR)

(includes Ref. Nos. B3 to B5 – 25FP13AR & 25FP23AR)

B3

Intermediate/Adapter

Incl. w/B2

1

B4

Stud

Incl. w/B2

4

B5

Nut

Incl. w/B2

4

B6

Balancing Ring

Incl. w/B2

N/A

1

B7

Casing Kit

25FP-002-96

25FP-001-96

1

(includes Ref. Nos. B8 to B13)

B8

Casing

Incl. w/B7

1

B9

Drain Plug

Incl. w/B7

1

B10

Stud 3/8-16 x 1-3/4”

Incl. w/B7

8

B11

Lock Washer 3/8”

Incl. w/B7

8

B12

Nut 3/8-16

Incl. w/B7

8

B13

Wear Ring/Inlet

Incl. w/B7

1

B14

Impeller Kit

25FP-010-96

25FP-012-96

25FP-011-96

1

(includes Ref. Nos. B15 to B17)

B15

Impeller

Incl. w/B14

1

B16

Shaft Sleeve

Incl. w/B14

1

B17

Shaft Collar

Incl. w/B14

1

B18

Seal Kit

1646-324-00

1

(includes Ref. Nos. B18 & B19)

B18-2

Gasket Kit

25FP-301-90

1

(includes Ref. Nos. B18 to B22)

B19

Seal Head (Rotating Head)

Incl. w/B18

1

B20

Seal Seat (Stationary Ring)

Incl. w/B18

1

B21

O-Ring (#270 – 25FP23, #263 – 25FP13)

Incl. w/B18

1

B22

Flange Gasket

Incl. w/B18

1

B23

Discharge Check Valve Body Kit

25FP-070-96

1

(includes Ref. Nos. B24 to B28)

B24

Check Valve Body

Incl. w/B23

1

B25

Check Valve Arm

Incl. w/B23

1

B26

Stud 5/8-11 x 2”

Incl. w/B23

4

B27

Nut 5/8-11

Incl. w/B23

4

B28

Pressure Gauge

Incl. w/B23

1

B29

Casing Vacuum Fitting Kit

25FP-171-90

1

(includes Ref. Nos. B30 to B33)

B30

Street Elbow 3/8” NPT

Incl. w/B29

1

B31

Pipe Nipple 3/8” NPT

Incl. w/B29

1

B32

Ball Valve 3/8” NPT

Incl. w/B29

1

B33

NPT x SAE Flare Fitting 3/8”

Incl. w/B29

1

B34

Wear Ring Kit

25FP-060-90

25FP-061-90

1

(includes Ref. Nos. B6 & B13 – 25FP23)

(includes Ref. No. B13 – 25FP13)

25FP-250-00

10

12/2012

Specifications Information and Repair Parts Manual 25FP Series

x

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

Hand & Exhaust Primer – Figure C

25FP-250-00

11

12/2012

Specifications Information and Repair Parts Manual 25FP Series

x

Repair Parts List – Hand & Exhaust Primer (Reference Figure C)

Ref.

Part Number for Model

No.

Description

25FP23AR

25FP13AR

25FP13HR

25FP10YR

Qty.

C1

Exhaust Primer Assembly

25FP-401-90

25FP-400-90

N/A

1

(includes Ref. Nos. C2 to C9 – 25FP23AR)

(includes Ref. Nos. C2 to C11 – 25FP13AR)

C2

Valve Body

Incl. w/C1

N/A

1

C3

Valve Cap

Incl. w/C1

N/A

1

C4

Handle

Incl. w/C1

N/A

1

C5

Ejector Body

Incl. w/C1

N/A

1

C6

Venturi

Incl. w/C1

N/A

1

C7

Ejector Jet

Incl. w/C1

N/A

1

C8

Bolt ¼-20 x 1-1/4”

Incl. w/C1

N/A

2

C9

Nut ¼-20

Incl. w/C1

N/A

2

C10

Connecting Nipple

N/A

Incl. w/C1

N/A

1

C11

Clamp

N/A

Incl. w/C1

N/A

1

C12

Hand Primer Assembly

N/A

C405-170-90

1

(includes Ref. Nos. C13 to C27)

C13

Pump Body Upper Half

N/A

Incl. w/C12

1

C14

Pump Body Lower Half

N/A

Incl. w/C12

1

C15

Diaphragm

N/A

Incl. w/C12

1

C16

Check Ball

N/A

Incl. w/C12

1

C17

Nut

N/A

Incl. w/C12

1

C18

Check Ball Seating Bushing

N/A

Incl. w/C12

1

C19

N/A

Incl. w/C12

1

C20

Cotter

N/A

Incl. w/C12

1

C21

Bolt

N/A

Incl. w/C12

1

C22

Nut

N/A

Incl. w/C12

1

C23

Plunger Rod

N/A

Incl. w/C12

1

C24

Pivot Rod

N/A

Incl. w/C12

1

C25

Nut

N/A

Incl. w/C12

1

C26

Handle Casting

N/A

Incl. w/C12

1

C27

Handle

N/A

Incl. w/C12

1

C28

Reducing Bushing

N/A

5160-171-00

1

C29

Street Elbow 3/8” NPT

N/A

1768-024-00

1

C30

Diaphragm Repair Kit

N/A

C405-300-90

1

(includes Ref. Nos. C15 & C16)

C31

Vacuum Hose Assembly

25FP-170-90

1

(includes Ref. Nos. C32 to C34)

C32

Hose

Incl. w/C31

1

C33

Male NPT 3/8” x Hose Fitting

Incl. w/C31

1

C34

Female SAE Flare x Hose Fitting

Incl. w/C31

1

25FP-250-00

12

12/2012

Specifications Information and Repair Parts Manual 25FP Series

x

For Repair Parts contact dealer where pump was purchased.

Repair Parts List – Fuel Tank (Reference Figure D)

Ref.

Part Number of Model

No.

Description

25FP23AR

25FP13AR

25FP13HR

25FP10YR

Qty.

D1

Fuel Tank

C404-170-00

N/A

1

D2

Fuel Cap

C402-172-00

N/A

1

D3

Tank Mount Hardware Kit

C404-171-90

N/A

1

(includes Ref. Nos. D4 & D5)

D4

Bolt 5/16-18 x ¾”

Incl. w/D3

N/A

4

D5

Nut 5/16-18

Incl. w/D3

N/A

2

D6

Fuel Tank Fitting Kit

C404-170-90

N/A

1

(includes Ref. Nos. D7 to D14)

D7

Elbow ¼” NPT x ¼” Hose Barb

Incl. w/D6

N/A

2

D8

Vent 3/8” NPT

Incl. w/D6

N/A

1

D9

Check Valve

Incl. w/D6

N/A

1

D10

Plug ¼” NPT

Incl. w/D6

N/A

1

D11

Hose Connector ¼” x 3/16” (not shown)

Incl. w/D6

N/A

1

D12

Fuel Hose ¼” x 12” (not shown)

Incl. w/D6

N/A

1

D13

Fuel Hose ¼” x 18” (not shown)

Incl. w/D6

N/A

1

D14

Hose Clamp (not shown)

Incl. w/D6

N/A

5

Please provide following information:

-Model Number

-Serial Number (if any)

Part description and number as shown in parts list

Fuel Tank – Figure D

American Machine & Tool 25FP Series Assembly instructions

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