FMC Ao4 User manual

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
OPERATION AND MAINTENANCE MANUAL, A04 / I04 PUMP
ASSEMBLIES
Rev ECN No. Date Reviewed By Approved By Status
A 5021211 23-APR-2009 Taylor, Justin Singleterry, Ronald RELEASED
Summary:
This is a manual for FMC A04 and I04 duplex piston pumps. These pumps are direct
drive (no pinion shaft) and have a stroke length of 1.00”. The continuous power rating is
2.6 hp (1.9 kilowatts). Refer to part number 5266228 for printing information.
OMM50001254

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
Table of Contents
Section Title Page
1.0 A04 / I04 Pump Features.............................................................7
2.0 Storage Instructions ...................................................................9
2.1 Short Term Storage.......................................................................9
2.2 Short Term Storage for Severe Environments ..............................9
2.3 Returning a Stored Pump to Operation.........................................9
2.4 Precautions during Freezing Weather...........................................9
3.0 Installation Guidelines..............................................................10
3.1 General Location.........................................................................10
3.2 Mounting Pump to Foundation and Power Source......................10
3.2.1 A04 Pump Mounting Guideline....................................................11
3.2.2 I04 Pump Mounting Guideline.....................................................11
3.3 Suction Piping Recommendations ..............................................11
3.4 Discharge Piping Recommendations..........................................12
3.5 Multiple Pump Systems...............................................................13
4.0 How to Start a Pump.................................................................14
5.0 Lubrication of Power End.........................................................16
5.1 Recommended Lubricants ..........................................................16
5.2 Oil Changes ................................................................................16
6.0 Inspection and Preventative Maintenance Chart....................18
7.0 Estimated Life of Wearing Components .................................19
8.0 Component Parts List...............................................................20
8.1 A04 / I04 Fluid End......................................................................21
8.2 A04 Power End (Vertically Mounted) ..........................................22
8.3 I04 Power End (Horizontally Mounted)........................................23

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9.0 Service Procedures...................................................................25
9.1 Replacing Cup Pistons................................................................26
9.2 Replacing Suction and Discharge Valves ...................................30
9.3 Servicing the Power End.............................................................33
10.0 Fastener Torque Requirements...............................................37
11.0 Critical Clearances....................................................................38
12.0 Trouble-Shooting Pumps .........................................................39
13.0 Ordering Parts...........................................................................42
14.0 Glossary of Commonly Used Terms .......................................43
15.0 Reference Information..............................................................46
16.0 MAINTENANCE LOG.................................................................47

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
List of Tables
Tables Page
Table 1: MAWP for Steel Pipe........................................................................................12
Table 2: Recommended Lubricant Chart........................................................................17
Table 3: Maintenance Chart ...........................................................................................18
Table 4: Component Parts List.......................................................................................24
Table 5: Torque Requirements......................................................................................37
Table 6: Critical Clearances...........................................................................................38

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
List of Figures
Figures Page
Figure 1: A04 Pump Features...........................................................................................7
Figure 2: I04 Pump Features............................................................................................8
Figure 3: A04 / I04 Fluid End..........................................................................................21
Figure 4: A04 Power End................................................................................................22
Figure 5: I04 Power End.................................................................................................23
Figure 6: Valve Seat Removal Tool (1250638)...............................................................32

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
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 GAGE 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
design 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 FMC.

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
1.0 A04 / I04 Pump Features
Exceptional design, workmanship, materials, and over 100 years of pump building
experience are features you’ll find built into every FMC pump.
Figure 1: A04 Pump Features
Corrosion resistant disc
valves are stacked in the
fluid end using o-ring seals
for easy service
Wide variety of piston
cup designs to suit the
needs of any application
Hardened steel wrist
pins are ground to a
mirror finish for a precise
fit
Aluminum alloy
connecting rods have
wrist pin bushings and
split insert bearings
Spring-loaded oil seals
keep oil in and
contaminants out
Heavy duty, oversize
ball bearings
Polished ceramic
cylinders provide
unsurpassed wear
and corrosion
resistance
Choice of 7/8” straight
keyed or 13 tooth
splined shaft with SAE
2 bolt mounting
configuration

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Figure 2: I04 Pump Features
The I04 pump is a horizontal version of the A04 pump. Virtually all of the same options
are available for either pump.
Durable cast iron
power frame
Heavy duty,
oversized ball
bearings
Spring loaded oil
seals keep oil
inside and
contaminants out
Choice of 7/8”
straight keyed or
13 tooth splined
shaft with SAE 2
bolt configurations
High strength
Aluminum alloy
connecting rod
Polished ceramic
liners provide
unsurpassed wear
and corrosion
resistance
Wide variety of piston
designs for optimal
durability in all applications
Corrosion resistant
disc valves are
stacked in the fluid
end using o-ring
seals for easy
service

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
2.0 Storage Instructions
Proper storage of your FMC pump will ensure that it is ready for service when needed.
Follow the guidelines below that fit the requirements of your application.
FMC 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.
2.1 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.
2.2 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 cup of internal rust inhibitor oil described in Table 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 pipe plug. Pour ¼ to ½ cup of internal rust
inhibitor oil described in Table 2, into the oil fill hole and then install the filler pipe plug.
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 or bag.
2.3 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). Reinstall the drain plug, filler
pipe plug, 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.
2.4 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 or ceramic cylinders of the pump and

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
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.
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.
3.0 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.
3.1 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. Locate the pump as close to the
suction source as possible to allow for the shortest and most direct routing of the inlet
piping.
3.2 Mounting Pump to Foundation and Power Source
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.

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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 manufacturer
instructions for installation procedures and tolerances.
CAUTION
Never operate the pump without a shaft guard securely installed.
3.2.1 A04 Pump Mounting Guideline
The A04 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 A04
pump allows for the driveshaft to be rotated in either direction.
3.2.2 I04 Pump Mounting Guideline
The I04 pump must be mounted in a horizontal position only. Secure the pump to the
mounting surface using the holes provided in the pump base. Check motor or engine
rotation direction to ensure that the top of the pump drive shaft rotates towards the
pump fluid end when in operation.
3.3 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, FMC
recommends that a gage 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 pipe routing may require even greater oversizing of the suction line for proper
operation of the pump. A suction 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.

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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.
FMC 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, FMC 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 FMC or your
authorized FMC reseller. FMC does not recommend using the pump in static lift
conditions without prior factory approval.
3.4 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.
Table 1: MAWP for Steel Pipe
Allowable Working Pressure For Steel Pipe (PSI @ 100F)
Pipe Schedule Number
Pipe Size (inches) 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
14.5 psi = 1 Bar
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 tin Table 1.

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2. Always use a pressure gauge in the pump discharge line. A properly
functioning gage 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, FMC recommends the use of flexible
pipe couplings or hose connections between the pump and any rigid piping. The
use of pulsation dampeners can also reduce hydraulic pulsation and resultant
vibrations.
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. FMC recommends that the
discharge be returned to the tank or drain, not back into the pump suction line.
3.5 Multiple Pump Systems
Special consideration must be taken to avoid vibration, pulsation, or uneven flow
distribution problems when operating multiple reciprocating pumps using common
suction and discharge piping headers. It is recommended that the user contact FMC or
experienced industry consultants for assistance with the design of the system and pump
installation in these situations.

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
4.0 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.
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: FMC 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.
•Pump model A04 requires 1 quart (0.95 liters) of oil
•Pump model I04 requires 1 quart (0.95 liters) of oil
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.
CAUTION
Do not loosen the valve covers with volatile or hazardous fluids.

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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 stuffing boxes. Do not exceed
170°F (77°C) on power end.

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5.0 Lubrication of Power End
5.1 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 FMC pump.
The intent of this section is to state the general lubrication requirements for FMC
pumps. Several products are listed by manufacturer name in the table below in order to
aid the customer in locating suitable lubricants. The following listing is not exclusive,
nor an endorsement of any particular product or manufacturer. Consult FMC for
lubrication recommendations for applications that fall outside of the conditions listed in
Table 2.
NOTE
Lubricant temperatures should not exceed 170°F (77 °C) for continuous duty or 180°F
(82°C) for intermittent duty applications. Crankc ase 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.
5.2 Oil Changes
•Oil changes must be carried out after first 50 hours of operation, and
subsequently after every 2000 hours or at least every 3 months. These intervals
may be modified depending on actual operating conditions.
•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.

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
Table 2: Recommended Lubricant Chart
RECOMMENDED LUBRICANT CHART
Mineral Oil Lubricant Synthetic Lubricant *
Type of
Service Ambient Temp 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
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
(38 C
to
54 C)
50 250 1165 Texaco®
Meropa 68
Shell® Omala
220
Shell® Rotella T
SAE 50
Exxon® HD-3 50
wt
Mobil® Trans
HD-50
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-40
10W-30
NA
90.0@40
15.0@100
12.0@100
69.9@40
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
*Synthetic lubricants are suggested for high or low temperature service.
Cortecis a registered trademark of Cortec Corporation, St. Paul, NM

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
6.0 Inspection and Preventative Maintenance Chart
Routine maintenance is an essential part of any successful pump installation. Properly
maintained FMC pumps are designed to offer years of trouble-free service.
Regular maintenance and inspection will keep your pump operating at peak
performance. FMC 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.
Table 3: Maintenance Chart
Interval Component Service Remarks
Break In
Crankcase Oil Change Drain and refill with new oil after first 50 hours of operation. Ensure
that the magnetic drain plugs are cleaned to remove debris.
Period Inlet Strainer Inspect Clean if Required. The amount of material in the strainer will
determine the interval of cleaning.
Complete Pump Inspect General inspection of pump and system to check for proper operation
of equipment.
Daily
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 pumpage or condensation.
Crankcase Oil Change Drain and refill with new oil. Clean magnetic drain plugs.
2,000 hours 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.

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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
7.0 Estimated Life of Wearing Components
The information given here is an estimate of the average wear life of listed components
in clean liquid service. It is not a guarantee of life for any given application, but is
intended to facilitate maintenance schedules and stocking of spares. The maintenance
of the power end lubrication system will influence the life of the power end components.
The speed of operation and percent of maximum allowable load will influence the life of
both power end and fluid end parts. The temperature, abrasiveness, and lubricity of the
liquid affect the life of fluid end expendables.
POWER END COMPONENT ESTIMATED LIFE (Hours)
End Bearings (Roller or Ball) 40,000
Wrist Pin Bushings 20,000
Power End Cover Gasket 10,000
Connecting Rod Bearings 10,000
Oil Seal on Crankshaft or Pinion 10,000
Oil Seal on Piston (Pony) Rod 5,000
FLUID END COMPONENT ESTIMATED LIFE (Hours)
Fluid Cylinder 16,000
Pistons 10,000
Valve Assembly 8,000
Ceramic Liners 3,000
Piston Cups 1,500

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Subject to contractual terms and conditions to the contrary, this document and all the information contained herein are the confidential and exclusive
property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
8.0 Component Parts List
A typical pump configuration is shown below for general reference purposes. This will
aid in identifying components for service procedures outlined in the following sections.
To order service parts or see exact component configurations for your particular pump,
contact your local FMC pump distributor or FMC if you do not have this information.
The A04 power end assembly (Figure 4) is shown with a hydraulic drive spine shaft
connection and the I04 power end assembly (Figure 5) is shown with keyed shaft
configuration. The A04 and I04 can have either style. The parts used for the different
shaft configuration are similar between the A04 and I04 pumps.
Hydraulic
drive adapter
with splined
shaft
Keyed Shaft