American AME0413HD User manual

Factory/Sales Office
P.O. Box 640
736 19th Avenue NE
St. Joseph, Minnesota 56374
[phone] ~ Toll Free
[phone] ~ Phone
[phone] ~ Fax
[email protected]
www.american-manufacturing.com
Pump AME0413HD
Operation And Maintenance Manual
7k-0266

Page 2 of 38
Operation And Maintenance Manual
For AME0413HD Pump
Summary:
This is a manual for American Mfg Company AME0413HD vertical quadruplex piston pump
with disc valves.
Alternate valve seat option:
The standard model AME0413HD comes with PPFMC 5260142 Valve seat, Raised face.
Optional valve seat version: PPFMC 1219615 Valve seat, Flat.

Page 3 of 38
Specifications
Pump Model AME0413HD
Configuration Vertical Quadruplex Piston
Number of Pistons 4
Stroke Length 1.0 Inches (25.4 mm)
Frame Load Rating 1240 lbs. (562.455 kg)
Pump Weight (Average) 80 lbs. (36.29 kg)
Direction of Rotation Either
Internal Gear Rotation 1:1
Intermittent Duty Speed Rating 575 RPM
Continuous Duty Speed Rating 450 RPM
Minimum Speed 390 RPM
Mechanical Efficiency 85%
Lubrication System Splash, Gravity Return
Lube Oil Capacity 1 Quart
Lube Oil Type SAE 30
Maximum Fluid Temperature 140°F
Minimum Fluid Temperature 0°F
Standard Suction Size 1.25 Inch NPT
Standard Discharge Size 0.75 Inch NPT
Fluid End Material Cast Iron
Valve Type Disc Valve
Performance Rating
Pump
Model Diameter
Displacement/
REV
Maximum
Pressure
Pump Capacity @ Input Speed (RPM)
390 RPM 400 RPM 425 RPM 450 RPM 575 RPM
Inch mm Gallon Liter PSI kg/cm2gpm lpm gpm lpm gpm lpm gpm lpm gpm lpm
AME0413HD 1.625 41.27 0.036 0.12 550 38.6 14.01 53 14.36 54.35 15.26 57.77 16.16 61.17 20.65 78.17
AME0413HD Piston Pump Data
6.7 BHP Continuous Duty (8.5 BHP Intermittent Duty)
Horsepower is based on 85 or 90% efficiency. Actual application horsepower
requirements can be calculated using this equation: BHP = (GPM*PSI)/(1714*0.85
or 0.90) Pump capacities listed are based on 100% volumetric efficiency.
This document contains American Mfg Company proprietary and confidential
information. It is loaned for limited purposes only and remains the property of
American Mfg Company. It may not be reproduced in whole or part or disclosed
to third parties without the prior written consent of American Mfg Company. The
document is to be returned to American Mfg Company upon request and in all
events upon completion of the use for which it was used.
Specifications subject to change without notice.
Factory/Sales Office
P.O. Box 640
736 19th Avenue NE
St. Joseph, Minnesota 56374
[phone] ~ Toll Free
[phone] ~ Fax
[phone] ~ Phone
[email protected]
www.american-manufacturing.com
7k-0266

Page 4 of 38
Table Of Contents
1.0 Important Safety Instructions................................................................................ 6
2.0 AME0413HD Pump Features.............................................................................. 7
3.0 Storage Instructions........................................................................................... 8
3.1 Short Term Storage........................................................................................... 8
3.2 Short Term Storage for Severe Environments........................................................... 8
3.3 Returning a Stored Pump to Operation.................................................................. 9
3.4 Precautions During Freezing Weather................................................................... 9
4.0 Installation Guidelines........................................................................................ 10
4.1 General Location.............................................................................................. 10
4.2 Mounting Pump to Foundation and Power Source................................................... 10
4.3 Suction Piping Recommendations......................................................................... 10
4.4 Discharge Piping Recommendations..................................................................... 11
5.0 How to Start a Pump......................................................................................... 13
6.0 Lubrication of Power End.................................................................................... 14
6.1 Recommended Lubricants................................................................................... 14
6.2 Oil Changes................................................................................................... 14
7.0 Inspection and Preventative Maintenance Chart...................................................... 16
8.0 Components Parts List........................................................................................ 17
8.1 Power Frame Components................................................................................. 18
8.2 Fluid End Components....................................................................................... 19
9.0 Service Procedures........................................................................................... 20
9.1 Replacing Cup Pistons....................................................................................... 20
9.2 Replacing Suction and Discharge Valves............................................................... 23
9.3 Servicing the Power End.................................................................................... 25
10.0 Fastener Torque Requirements.............................................................................. 28
11.0 Critical Clearances........................................................................................... 29
12.0 Trouble-Shooting Pumps..................................................................................... 30
13.0 Ordering Parts................................................................................................. 33
14.0 Pump Mounting Dimensions................................................................................ 34
15.0 Glossary of Commonly Used Terms...................................................................... 35
16.0 Reference Information........................................................................................ 37
17.0 Maintenance Log............................................................................................. 38

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List of Figures and Charts
Table 1 MAWP for Steel Pipe........................................................................................ 11
Table 2 Lubricant Recommendations................................................................................ 15
Table 3 Maintenance Chart........................................................................................... 16
Table 4 Component Part List.......................................................................................... 17
Table 5 Torque Values for Critical Pump Fasteners.............................................................. 28
Table 6 Clearance Chart.............................................................................................. 29
Figure 1 AME0413HD Pump Assembly............................................................................ 7
Figure 2 Power End Components..................................................................................... 18
Figure 3 Fluid End Components....................................................................................... 19
Figure 4 Valve Seat Removal Tool.................................................................................... 24
Figure 5 Pump Mounting Dimensions................................................................................ 34

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1.0 Important Safety Instructions
WARNING: Many accidents occur every year through careless use of mechanical equipment. You can avoid
hazards associated with high pressure equipment by always following the safety precautions listed below.
SHUT DOWN OR DISENGAGE the pump and all accessory equipment before attempting any type of service.
Failure to do this could cause electrical shock or injury from moving pump parts or components under high
pressure. Always adhere to “Lock Out” and “Tag Out” procedures. For mobile equipment, be sure engines and
hydraulics cannot be accidentally started.
BLEED OFF ALL PRESSURE to the pump and piping before performing any maintenance on the pump. Failure to
do so may spray water or chemicals at high pressure or high temperature onto service personnel.
NEVER OPERATE THE PUMP WITHOUT A PRESSURE RELIEF VALVE, rupture disc, or other type of properly sized
over pressure safety device installed.
ALWAYS USE A PRESSURE GAUGE when operating the pump. The pressure must never exceed the maximum
pressure rating of the pump or damage may occur. This damage can cause leakage or structural damage
resulting in injury to personnel.
ENSURE THAT NO VALVES ARE PLACED BETWEEN THE PUMP AND PRESSURE RELIEF VALVE. If the pump is
started with a closed or restricted valve in line before the pressure relief valve, the pump may exceed the rated
or designed pressure limits and rupture causing injury to personnel.
USE SHIELDS OR COVERS AROUND PUMPS when pumping hot water, chemicals, or other hazardous liquids.
This precaution can prevent the exposure of service personnel to these fluids should leakage occur.
ALWAYS USE GUARDS on all belt drives, couplings, and shafts. Guards can prevent personnel from becoming
entangled and injured by rotating and reciprocating parts.
USE EXTREME CAUTION WITH SOLVENTS used to clean or degrease equipment. Most solvents are highly
flammable and toxic. Observe all safety instructions on packaging.
FOLLOW NORMAL ENVIRONMENTAL GUIDELINES WHEN fluids, lubricants, or solvents are disposed of or
spilled.
NEVER MODIFY THE PUMP to perform beyond its rated specifications without proper authorization in writing
from AMERICAN MFG COMPANY.

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2.0 AME0413HD Pump Features
The AME0413HD drive shaft standard end comes with 1-1/8” diameter shaft and 1/4” square keyway.
Figure 1: AME0413HD Pump Assembly
Corrosion resistant disc
valves are stacked in
the fluid end using
O-ring seals for easy
servic e
Hardened steel wrist
pins are ground to a
mirror finish for a
precise fi t
Spring-loaded oil
seals keep oil in and
contaminants out
1-1/8” diameter straight
keyed mounting
Polished ceramic
cylinders provide
unsurpassed wear and
corrosion resistanc e
Aluminum alloy
connecting rods have
wrist pin bushings and
split insert bearings
Heavy duty , oversize
ball bearings

Page 8 of 38
3.0 Storage Instructions
Proper storage of your American Mfg Company pump will ensure that it is ready for service when needed. Follow
the guidelines below that fit the requirements of your application.
American Mfg Company pumps come from the factory without crankcase oil and are prepared for storage
periods of up to six (6) months in proper environmental conditions. Indoor storage in a dry, temperature-
controlled location is always recommended. If pumps are to be stored short term (less than six (6) months) in a
severe environment, they should be prepared using the procedures outlined in the “Short Term Storage for Severe
Environments” section 3.2 below. Remember that any fluid that poses an environmental hazard or is toxic must be
handled and disposed of properly.
3.1 Short Term Storage
If the pump is stored in an indoor, temperature controlled environment for less than six (6) months, no special
steps are required to prepare it for storage. As a general rule for pumps in corrosive fluid applications, the fluid
end should be drained, flushed with water or other non-corrosive cleanser and compressed air used to blow dry
whenever idle.
3.2 Short Term Storage for Severe Environments
If the pump has been in service, drain any fluid from pump fluid end, flush the fluid end with water to clean out any
of the remaining pumpage and blow dry with compressed air. Pour 1/4 to 1/2 cup of internal rust inhibitor oil
described in Table 2 (see Recommended Lubricant Chart, Section 6.2), into the suction and discharge ports of fluid
end, and then install pipe plugs in openings. Drain the power end (crankcase) oil and remove the oil fill cap (or
plug). Pour ½ to 1 cup of internal rust inhibitor oil described in Table 2 into the oil fill hole and then install the filler
cap. Coat all exposed, unpainted metal surfaces (for example, Driveshaft) with preservative oil. Replace the oil fill
cap, and then cover the entire pump with a weather resistant covering such as a canvas or plastic tarp.

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3.3 Returning a Stored Pump to Operation
Before operating a pump that has been prepared for storage, drain the preservative and lubricating oil mixture
from the power end (crankcase). If the pump has a pinion bearing, remove the rear cover and apply recommended
crankcase lubricant (Refer to Table 2 in Section 6.2) to the pinion bearings. Reinstall the rear cover, drain plug,
breather/filler cap, piston cup seals, and any other components that were removed for storage. Once these steps
have been completed, follow the normal pump start up procedures outlined in this manual.
NOTE: American Mfg Company can factory prepare units for long term storage for a nominal fee if specified at the
time of order.
3.4 Precautions During Freezing Weather
Freezing weather can cause problems for equipment when pumping water-based fluids that expand in volume
when changing from a liquid to a frozen solid state. When water is left in a pump fluid end and exposed to
freezing temperatures, the expansion of the water as it freezes can rupture the fluid cylinder of the pump and cause
equipment damage. Injury may result when starting equipment that has been damaged.
Whenever the pump is stored or idle in conditions that are near or below freezing, any water based fluids should
be removed from the pump.
The best way to do this is to run the pump for a few seconds with the suction and discharge lines disconnected or
open to atmosphere. This will clear the majority of the fluid from the pumping chamber as well as the suction and
discharge manifolds. After the run, blow compressed air through the fluid end to remove all traces of fluid. Remove
the bottom plugs and cylinder covers from the fluid cylinder. Drain the liquid from the discharge valves first and then
the suction valves by lifting the valves. This ensures all fluid to be drained from the pumping chamber between the
suction and discharge valves. As an alternative to the previous procedure, a compatible antifreeze solution can be
circulated through the fluid end. RV antifreeze, propylene glycol, is recommended for this purpose. Remember that
any fluid that poses an environmental hazard or is toxic must be handled and disposed of properly.

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4.0 Installation Guidelines
A proper installation is essential to optimal performance, long service life, and reduced maintenance requirements.
Take time to thoroughly plan all aspects of your installation.
4.1 General Location
It is important to position the pump on as flat and level a surface as possible to assist the splash oil lubrication
system. Park mobile equipment, such as sewer cleaner trucks or drilling machines, on as level a surface as possible.
Whenever possible the pump should be mounted in a clean, dry location with sufficient lighting and adequate
space for easy inspection and maintenance. Locate the pump as close to the suction source as possible to allow for
the shortest and most direct routing of the inlet piping.
4.2 Mounting Pump to Foundation and Power Source
The AME0413HD pump must be mounted in a vertical position only. Secure the pump to the mounting surface using
the holes provided in the pump base. The design of the AME0413HD pump allows the drive shaft to be rotated in
either direction. For units that are V-belt driven, check the alignment of the sheaves after the unit is installed on its
permanent mounting. Tighten belts to the proper tension as recommended by the belt manufacturer. Verify that the
sheaves are in line and parallel to each other with a straight edge.
CAUTION: Never operate the pump without the belt guard securely installed. For direct-coupled or spline-driven
units, ensure that the shafts are centered and parallel when the driver is mounted to the pump. Follow the coupling
maunufacturer instructions for installation procedures and tolerances.
CAUTION: Never operate the pump without a shaft guard securely installed.
4.3 Suction Piping Recommendations
Poor suction piping practices are a very common source of pump problems. To ensure proper operation it is very
important to follow good design practice in the installation of the suction system before the pump is operated.
A small amount of additional planning and investment in the piping system usually provides for better pump
performance and longer periods between service requirements. It is difficult to diagnose many pump problems
without the aid of a suction pressure gauge. For this reason, American Mfg Company recommends that a gauge
always be installed in the suction line directly before it enters the pump.
The suction line from the fluid source to the pump should be as short and direct as possible. Use rigid piping,
non-collapsible hose or a combination of both as circumstances require in your installation. The suction pipe size
should be at least equal to or one size larger than the pump inlet. Long piping runs, low suction heads, or indirect

Page 11 of 38
pipe routing may require even greater over sizing of the suction line for proper operation of the pump. A suction
and discharge pulsation dampener is recommended to reduce the effects of acceleration head to help when suction
conditions are not optimal. In some cases it may be necessary to install a booster pump in the suction line of the
pump to obtain sufficient pressure for the pump to operate successfully.
The suction line must be configured so there are no high spots in the line where air pockets can collect. These
pockets may make the pump difficult to prime and cause rough, erratic operation. A drain valve or plug should be
installed at the low point of the suction line to allow for draining before freezing conditions or for maintenance.
American Mfg Company recommends that all piping be supported independently of the pump. By supporting the
piping this way, vibrations are reduced and stress on the pump is kept to a minimum. The use of elbows, nipples,
unions, or other fittings should be minimized. Make sure that all joints and connections are airtight. Air leaks
reduce the capacity of the pump and can result in cavitation, rough operation, and/or loss of prime. To help isolate
mechanical and hydraulic vibrations, American Mfg Company recommends the use of flexible pipe couplings or
hose connections between the pump and any rigid piping.
Always ensure that calculated system Net Positive Suction Head available, NPSHa, exceeds pump Net Positive
Suction Head required, NPSHr, by at least 5 feet (1.5 meters) of water for proper operation of the pump. NPSH
requirements for each pump model are provided on the product data sheets available through American Mfg
Company or your authorized American Mfg Company reseller. American Mfg Company does not recommend using
the pump in static lift conditions without prior factory approval.
4.4 Discharge Piping Recommendations
1. Route the discharge piping in as short
and direct a route as possible. Use the
same pipe size as the outlet of the pump.
In installations where the discharge
piping is in excess of 50 feet (15 meters)
it is suggested to use the next larger
size pipe to minimize friction losses
downstream of the pump.
CAUTION: Always use pipe or hose
that is designed for your particular
pressure requirements. Inadequate
pressure ratings can allow hose or pipe
to fail, resulting in equipment damage
and possibly personal injury. Normal
hose pressure ratings are clearly
marked on the outer surface of the hose.
Working pressure ratings for steel pipe
can be obtained from the manufacturer
or from the chart shown in Table 1.
Allowable Working Pressure For Steel Pipe (PSI @ 100F)
Pipe Size
(inches)
Pipe Schedule Number
40 80 160 XX
3/8 1,700 3,800 ---- ----
1/2 2,300 4,100 7,300 12,300
3/4 2,000 3,500 8,500 10,000
1 2,100 3,500 5,700 9,500
14.5PSI = 1 BAR
Table1: MAWP for steel pipe

Page 12 of 38
2. Always use a pressure gauge in the pump discharge line. A properly functioning gauge mounted
at the pump (and before any valves) is required to accurately determine the operating pressure of a pump and
to conduct troubleshooting.
3. Ensure that all piping is supported independently of the pump to reduce vibrations and strain on the pump.
Pulsation dampeners on the discharge are recommended to reduce pressure pulsation and resulting vibration.
The use of elbows, nipples, unions, or other fittings should be kept to an absolute minimum. Avoid short radius
90° elbows; use two long radius 45° elbows instead. To help isolate mechanical and hydraulic vibrations,
American Mfg Company recommends the use of flexible pipe couplings or hose connections between the pump
and any rigid piping or the use of pulsation dampeners.
4. A properly adjusted pressure relief valve or rupture disc must be installed directly downstream of the pump to
prevent damage or injuries resulting from over pressure or deadhead conditions. The relief valve discharge line
must be as large as the pipe outlet of the relief valve. Never install valves in the relief valve discharge line or
between the pump and relief valve. American Mfg Company recommends that the discharge be returned to the
tank or drain, not back into the pump suction line.
5. It is recommended that a start-up bypass line and valve be installed to allow flow to bypass the relief valve.
This allows the pump to start in an unloaded condition (no discharge pressure).

Page 13 of 38
5.0 How to Start a Pump
CAUTION: Always take special precautions when starting a pump for the first time or after any extended
shutdown. Never assume that someone else has properly prepared the pump and system for
operation. Always check each component of the system prior to every start-up. The checklist that follows is
intended to be a general guide for starting a pump in a typical installation. Every installation is different, and
each will have different requirements to ensure safe and successful operation. It is the responsibility of the
operator to determine the correct start-up procedure for each installation.
1. Ensure that the drain plug(s) on the bottom of the pump crankcase have been installed and are tight. Ensure
that the oil level sight glass, if equipped, has been properly installed.
2. Check the oil level to ensure that the pump is properly filled with non-detergent motor oil, gear lube,
or a synthetic oil as described in Table 2 and that the oil has not been contaminated with water or other
contaminants.
NOTE: American Mfg Company pumps are shipped with no oil in the power frame and must be filled to the
proper level with the proper grade of oil prior to start-up.
3. If accessible, check the piston rods to ensure that they are free from abrasive particles or debris.
4. Ensure that the pressure relief valve and all accessory equipment have been installed and properly adjusted.
Verify that all joints are pressure tight.
5. Open the suction line valve to allow fluid to enter pump. Prime the fluid cylinder if necessary on the initial
start up or after the system piping has been drained. The valve covers may have to be cracked open to assist
with priming.
6. Check to ensure that power is locked out and tagged out. Turn the pump over by hand if possible to ensure
free, unobstructed operation.
7. Make sure that all guards are in place and secure. Verify that all personnel are in safe positions and that
system conditions are acceptable for operation.
8. The pump is now ready to start. NOTICE: Whenever possible, use a bypass in the discharge line to allow the
pump to start in the unloaded condition (no discharge and pressure). Slowly close the bypass line to bring the
pump into full load conditions. Shut down immediately if the flow becomes unsteady, pressure fluctuates, or if
unusual sounds or vibrations are noted.
9. Take temperature readings of the power end and crosshead regions. Do not exceed 170°F (77°C) on power
end and crosshead regions.

Page 14 of 38
6.0 Lubrication of Power End
6.1 Recommended Lubricants
Few factors can influence the life of a pump more than the power end lubricant (oil). Careful selection of the right type
of oil for each particular application will help ensure optimal performance from an American Mfg Company pump.
NOTE: Lubricant temperatures should not exceed 170° F (77° C) for continuous duty or 180° F (82° C) for intermittent
duty applications. Crankcase temperatures that exceed these limits will cause the lubricant to prematurely “break
down”. The result will be poor lubrication and failure of power end components.
6.2 Oil Changes
Oil changes must be carried out after first 50 hours of operation, and subsequently after every 2,000 hours or at
least every 3 months. These intervals may be modified depending on actual operating conditions. This model pump
requires 1 quart (.95 liters) of oil.
Oil should be changed when hot to prevent build up of sludge deposits.
It is advisable to check oil level daily. If more than 10% of the total capacity has to be added, check for oil leaks.
Do not mix oils of different types, even if produced by the same manufacturer.
Never mix mineral and synthetic oils.
To avoid the risk of scalding or burns, pay attention to oil and power end temperature during an oil change.
Follow environmental guidelines when changing and disposing of lubricants.

Page 15 of 38
Recommended Lubricant Chart
Oil Lubricant Synthetic Lubricant*
Type of
Service
Ambient
Temperature
SAE
Grade
ISO Viscosity
(cSt@40 C)
SSU
Viscosity
Manufacturer Brand
Name
SAE
Grade
ISO Viscosity
(cSt@40 C)
Manufacturer Brand
Name
General
Service
0 F to 100 F
(-18 C to 38 C)
30 100 550 Texaco®Meropa 100
Shell®Omala 100
Shell®Rotella T SAE 30
Exxon®XD-3 30 wt
Mobil®Trans HD-30
10W-30
5W-40
NA
90.0@40
15.0@100
99.1@40
13.9@100
Shell®Rotella T
Synthetic SAE 5W-40
Mobil®SCH 627
High Ambient
Temperature
Service
100 F to 130 F
(38C to 54 C)
50 220 1,165 Texaco®Meropa 68
Shell® Omala 220
Shell® Rotella T SAE 50
Exxon®HD-3 50 wt
Mobil®Trans HD-50
5W-40
5W-40
NA
90.0@40
15.0@100
217@40
29.9@100
Shell®Rotella T
Synthetic SAE 5W-40
Mobil®SCH 630
Cold Ambient
Temperature
Service
0 F to -30 F
(-18 C to -34 C)
20 68 350 Texaco®Meropa 68
Shell® Omala 68
Shell® Rotella T SAE 20
Exxon®HD-3 20 wt
Mobil®Trans HD-20
5W-30
5W-40
10W-30
NA
90.0@40
15.0@100
12.0@100
69.9@100
10.9@100
Shell®Rotella T
Synthetic SAE 5W-40
BP®Vanellus E8
ULTRA 5W-30
Mobil®SCH 626
Frequent
Start/Stop
Operation
40 150 775 Texaco Meropa®150
Specialty Items
Internal Rust
Inhibitor
Cortec® VCI 329
External Rust
Preventative
Texaco® Metal
Protective Oil L
Table 2: Lubricant Recommendations
*Synthetic lubricants are suggested for high or low temperature service. Cortec® is a registered trademark of Cortec Corporation, St. Paul, MN.

Page 16 of 38
7.0 Inspection and Preventative Maintenance Chart
Routine maintenance is an essential part of any successful pump installation. Properly maintained American Mfg
Company pumps are designed to offer years of trouble-free service.
Regular maintenance and inspection will keep your pump operating at peak performance. American Mfg
Company pumps have been carefully engineered to minimize maintenance requirements and simplify these tasks
when they are required. Regular inspections allow operators to become familiar with normal pump operation so
they can recognize the signals of potential problems and schedule maintenance. The maintenance chart in Table 3
shown below should be used as a guideline only. Many applications will require adjustment of the intervals shown
in this chart for severe or unusual operating conditions.
Interval Component Service Remarks
Break In Period
Crankcase Oil Change Drain and refill with new oil after first 50 hours of operation. Ensure that the
magnetic drain plug is cleaned to remove debris.
Inlet Strainer Inspect Clean if required. The amount of material in the strainer will determine the
interval of cleaning.
Daily
Complete Pump Inspect General inspection of pump and system to check for proper operation of equip-
ment.
Piston Cup Sets Inspect Check the cylinder liner area of the pump for signs of leakage. Replace piston
cups if leakage becomes excessive.
Pump System Flush Required for shutdown when pumping fluids that may harden or corrode the
pump if left inside once stopped.
Crankcase Oil Inspect Ensure that the oil is at proper level and has not been contaminated by pump-
age or condensation.
2,000 Hours
Crankcase Oil Change Drain and refill with new oil. Clean magnetic drain plugs.
Connecting Rod Bolts Inspect Check the connecting rod bolts with a torque wrench to ensure they are within
specification. This should be done in conjunction with oil change.
Table 3: Maintenance Chart

Page 17 of 38
Item #
Component
Description Part # Qty
22 Fluid Cylinder PPFMC P500358 1
23 Screw PPFMC P522316 4
24 Valve Seat, Raised Face PPFMC 5260142 8
25 Disc & Spring Assembly PPFMC 5253499 8
26 Valve Cage PPFMC 1219610 8
27 O-Ring PPFMC 3264075 12
28 Valve Cover PPFMC 1219614 4
29 Valve Cover Clamp PPFMC 1255887 2
30 Screw PPFMC 1100064 2
31 Plug, 1/4” NPT PPFMC 1109987 1
32 Screw PPFMC 1284516 4
33 Piston Retainer PPFMC 5257986 4
34 Piston Cup PPFMC 5257807 4
35 O-Ring PPFMC 1101339 4
36 Piston Holder PPFMC 1282557 4
37 Gasket PPFMC A91684 8
38 Ceramic Liner PPFMC 1241364 4
39 Umbrella (Plastic) PPFMC 1279148 4
40 Washer, Umbrella PPFMC 1269388 4
41 Cap Plug For 3/4” NPT PPFMC 1177200 1
42 Cap Plug For 1-1/4” NPT PPFMC 1177202 1
8.0 Component Parts List
To order service parts or see exact component configurations for your particular pump, refer to the cross-section
parts drawing. Contact your local American Mfg Company pump distributor or American Mfg Company if you do
not have this information.
AME0413HD Component Part List
Table 4: Component Part List
Item #
Component
Description Part # Qty
1 Power Frame PPFMC 1273545 1
2 Crankshaft: Driven PPFMC P509560 1
3 Crankshaft: Drive PPFMC P510882 1
4 Connecting Rod Assembly PPFMC P509546 4
5 Bearing Insert (Pair) PPFMC P510834 4
6 Wrist Pin PPFMC 1219650 4
7 Crosshead PPFMC 1216823 4
8 Sleeve PPFMC 1218743 4
9 Ball Bearing, Single PPFMC 1104444 3
10 Retainer Ring PPFMC 1118553 4
11 Seal, Oil PPFMC 1101095 4
12 Ball Bearing, Double PPFMC 1104508 1
13 Washer PPFMC 1177455 12
14 Screw PPFMC 1100068 12
15 Plug, 1/4” NPT PPFMC 1101305 1
16 Mounting Base, Pump PPFMC 1280633 1
17 Gasket, Pump Base PPFMC 1273559 1
18 Key PPFMC 1187577 1
19 Plug, 3/4” NPT PPFMC 1105060 2
20 Screw, Drive PPAM A100120000 4
21 Nameplate PPAM A000522000 1

Page 18 of 38
8.1 Power Frame Components
Figure 2: Power End Components
1
3
2
4
7
6
8
12
11
9
16
17
14
13
18
19
20
15
5
21
10

Page 19 of 38
8.2 Fluid End Components
Figure 3: Fluid End Components
25
32
22
23
24 27
26
30
29
28
24
34
33
36
37
38
37
39
40
35
31

Page 20 of 38
9.0 Service Procedures
American Mfg Company pumps are designed to simplify all required maintenance. The following sections illustrate
step-by-step instructions for performing most common service procedures of a pump. Read each section before
starting service work on the pump. Refer to figures 2 and 3 in section 8.0 for location of components.
CAUTION: Many accidents occur every year through careless use or service of mechanical equipment. You can
avoid hazards associated with high-pressure equipment by always following the safety precautions listed in Section
1.0.
CAUTION: Ensure that all pressure inside the pump fluid cylinder has been bled off before starting any service
work. Ensure that the power to the pump is off. If applicable, it should be locked and tagged out.
9.1 Replacing Cup Pistons
1. Remove the fluid cylinder (22) to provide access the piston
cups (34). To remove the fluid cylinder, first remove the four hex
bolts (23) holding the fluid cylinder to the power frame (1), then
lift it off exposing the ceramic cylinders (38).
2. Remove the gaskets (37) from the top of the cylinders or from
the counter bores of the fluid cylinder.
3. Each piston cup (34) is held in place with a cap screw (32)
and piston retainer (33). Remove the cap screw and piston
retainer from each of the four cylinders.
4. Lift each ceramic cylinder (38) off from the top of the power
frame. Friction will usually keep the piston cup inside the cylinder
as it is removed. Once the cylinder and pistons are removed, take
them to a bench and push the piston cup out of the cylinder.
5. Remove the piston holder (36) and o-ring (35) from the
crosshead shaft (7).