FMC Technologies FMC L06 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, L06 THROUGH L16
TRIPLEX PUMPS
Rev ECN No. Date Reviewed By Approved By Status
B 5018139 29-MAY-2007 Lyon, Tim Singleterry, Ronald RELEASED
Summary:
This is a manual for FMC L06 through L16 triplex piston pumps. These pumps include
direct drive (no pinion shaft) and pinion drive (for internal gear reduction) and have a
stroke length ranging from 1.50” through 4.00”.

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Rev: B Page 2 of 65
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.
Table of Contents
Section Title Page
1.0 Important Safety Instructions ....................................................5
2.0 L06 – L16 Pump Features...........................................................6
3.0 Storage Instructions ...................................................................8
3.1 Short Term Storage.......................................................................8
3.2 Short Term Storage for Severe Environments ..............................8
3.3 Long Term Storage.......................................................................8
3.4 Returning a Stored Pump to Operation.........................................9
3.5 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 Bearingless Hydraulic Motor Drives............................................10
4.4 Suction Piping Recommendations ..............................................11
4.5 Discharge Piping Recommendations..........................................12
4.6 Multiple Pump Systems...............................................................13
5.0 How to Start a Pump.................................................................13
6.0 Lubrication of Power End.........................................................14
6.1 Recommended Lubricants ..........................................................14
6.2 Oil Changes ................................................................................15
7.0 Inspection and Preventative Maintenance Chart....................17
8.0 Estimated Life of Wearing Components .................................18
9.0 Component Parts List...............................................................19
10.0 Service Procedures...................................................................23

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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.
10.1 Replacing Cup Pistons................................................................23
10.2 Removing the Fluid Cylinder.......................................................27
10.3 Replacing Valves ........................................................................29
10.3.1 Replacing AR Valves ..................................................................31
10.3.1.1 Introduction........................................................................................................31
10.3.1.2 Knock Out Tool..................................................................................................32
10.3.1.3 Eccentric Discs..................................................................................................34
10.3.1.4 Mandrel Type.....................................................................................................38
10.3.1.5 Threaded Type (AR Valves Only) .....................................................................40
10.3.1.6 Installation of AR Valves ...................................................................................41
10.3.1.6.1 Installing Smaller, Factory Torqued AR Valves.................................................41
10.3.1.6.2 Installing Larger, Non-Factory Torqued AR Valves...........................................42
10.3.2 Replacing “L” Series Disc Type Valves.......................................43
10.3.2.1 Introduction........................................................................................................43
10.3.2.2 Valve Removal Tools ........................................................................................44
10.3.2.3 Installation of Disc Valves .................................................................................45
10.4 Servicing the Power End.............................................................46
10.4.1 Replacing Piston Rod Oil Seals ..................................................46
10.4.2 Replacing Power End Bearings & Crankshaft.............................48
11.0 Fastener Torque Requirements...............................................54
12.0 Critical Clearances....................................................................55
13.0 Valve Removal and Installation Tools.....................................56
14.0 Trouble-Shooting Pumps .........................................................58
15.0 Ordering Parts...........................................................................61
16.0 Glossary of Commonly Used Terms .......................................62
17.0 Reference Information..............................................................65

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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 and Pictures
Figures Page
Figure 1: L11 – L16 Pump Assembly with Pinion Shaft.....................................................6
Figure 2: L06 – L16 Pump Assembly with No Pinion Shaft (Includes HD & HV) ...............7
Figure 3: Power End Components..................................................................................19
Figure 4: Fluid End Components....................................................................................20
Figure 5: AR Valve Assembly.........................................................................................31
Figure 6: Using the Knock Out Tool................................................................................32
Picture 1: Removing the valve from the seat...................................................................33
Picture 2: Removing the valve from the fluid cylinder......................................................33
Figure 7: Valve Disassembly..........................................................................................34
Figure 8: Eccentric Disc in Use.......................................................................................35
Figure 9: Removing the seat...........................................................................................36
Figure 10: Hydraulic Power used to Remove Valve Seat................................................37
Picture 3: Mandrel Type Tool..........................................................................................38
Figure 11: Mandrel Tool in use.......................................................................................39
Figure 12: Threaded Tool in use.....................................................................................40
Figure 13: Typical L Series Disc Valve Assembly...........................................................43
Figure 14: Illustration of the P534694 and P534695 Ball Knock Out Tools.....................44

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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 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.
•INSURE 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.
2.0 L06 – L16 Pump Features
Exceptional design, workmanship, materials, and over 100 years of pump building
experience are features you’ll find built into every FMC pump. The “L” Series pumps
include the Industrial Pumps with integral gear reduction pinion shaft, the Horizontal
Drill (HD) configuration, and the High Volume (HV) configuration with abrasion
resistant (AR) valves or Ball valves for viscous fluids with stringy matter and with fluid
ends designed for these valves.
Figure 1: L11 – L16 Pump Assembly with Pinion Shaft
Oil level sight gage allows
remote monitoring of oil
level and condition.
Heavy-duty power ends are machined from a
one-piece gray iron casting for long trouble free
life. All pumps incorporate a reliable splash lube
system with gravity feed return to sump.
Many piston and liner combinations are
offered to provide maximum service life for
each application. Liner wash is available for
extending piston and liner life.
Magnetic
drain plugs
remove
tramp iron
from the oil
bath.
Integrally cast and
machined feet to
provide rigid and
precise mounting.
Abrasion resistant (AR) or disc
type valves feature tough,
durable materials and
generous flow areas to extend
service life. Ball valves are
available for fluids with solids
that will foul conventional
valves and restrict flow.
NPT threaded ports
are standard.
Two-bolt cover
clamps or
threaded covers
for easy access
to valves.
Compact power end with integral
gear reduction. Straight shaft
pumps can be configured in Right-
Hand (RH), Left-Hand (LH), or
Double Extended drive. Hydraulic
drive (splined shaft) is available.
Individually clamped
cylinder covers on
most models allow
easy access for
service needs.
Fluid ends are designed for years of service
in demanding applications. Standard
materials of construction are cast ductile iron
or nickel aluminum bronze. Fluid end design
allows for very low clearance volumes to
improve both volumetric efficiency and the
pumps ability to prime.

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Rev: B Page 7 of 65
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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.
Figure 2: L06 – L16 Pump Assembly with No Pinion Shaft (Includes HD & HV)
Choice of straight keyed shaft or
mounting flange for direct coupling
(splined shaft) of hydraulic motors
(shown).
Oil level sight gage allows
remote monitoring of oil level
and condition.
Heavy-duty power ends are machined from a one-
piece gray iron casting for long trouble free life. All
pumps incorporate a reliable splash lube system with
gravity feed return to sump.
Two-bolt cover
clamps or
threaded covers
for easy access
to valves
Abrasion resistant (AR) or disc type
valves feature tough, durable
materials and generous flow areas to
extend service life. Ball type valves
are available for fluids with solids that
will foul conventional valves and
restrict flow.
NPT threaded ports
are standard.
Many piston and liner combinations are offered to
provide maximum service life for each application.
Liner wash is available for extending piston and
liner life.
Integrally cast and
machined feet to provide
rigid and precise mounting
Magnetic drain
plugs remove
tramp iron from
the oil bath.
Fluid ends are designed for years of service
in demanding applications. Standard
materials of construction are cast ductile iron
or nickel aluminum bronze. Fluid end design
allows for very low clearance volumes to
improve both volumetric efficiency and the
pumps ability to prime.
Individually clamped
cylinder covers on
most models allow
easy access for
service needs.
FMC Nameplate

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Rev: B Page 8 of 65
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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.
3.0 Storage Instructions
Proper storage of your FMC pump will insure 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. If the pump is to be stored, or is inactive, for periods in excess of six
(6) months, it is necessary to prepare the pump as outlined in the “Long Term Storage”
Section 3.3. 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 6.0 ), 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.
3.3 Long Term Storage
Long-term storage is defined as any period when the pump is in storage or idle in
excess of six (6) months. If the pump has been in service, drain any fluid from the
pump fluid end, flush the fluid end with water to clean out any of the remaining
pumpage, and blow dry using compressed air. Pour 1/4 to 1/2 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. Remove the piston cup seals as described in
Section 9.1 “Replacing Cup Type Pistons” of this manual, seal them in a bag to protect
against ozone, and store them in a separate location with a controlled environment
where they are protected from UV exposure.

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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.
Drain the oil from the pump power end. Remove the rear cover to expose the drive
components. Spray all internal parts with a rust preservative that is soluble in
lubricating oil while rotating the driveshaft several turns by hand to insure complete
coverage. Replace the rear cover and add ½ to 1 cup of internal rust inhibitor described
in Table 2.
Spray a rust preventative onto all exterior machined surfaces paying attention to any
unpainted areas like the crankshaft extension. Remove the oil fill cap and store with the
piston cup seals. Cap the breather opening with a plug or other suitable means in order
to keep the preservative atmosphere sealed inside the power end.
Never store the pump on the floor or ground. Always place it on a shelf or pallet that is
several inches above ground level. Cover the entire pump with a canvas or plastic tarp.
Every two months inspect the unit. Rotate the crankshaft by hand at least 4 turns
during each inspection. Drain and replace the rust inhibitor after every six (6) months of
storage.
3.4 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 6.0) 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: FMC can factory prepare units for long term
storage for a nominal fee if specified at the time of order.
3.5 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. If possible, remove plugs from the
bottom of the fluid cylinder and lift up the suction valve seats to insure that all fluid is
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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Rev: B Page 10 of 65
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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.
Splined
Adapter
Bronze
Bushing
ORing
Hydraulic
Motor
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 L06 through L16 model pumps described in this document must be mounted in a
horizontal position only. Secure the pump to the mounting surface using the four (4)
holes provided in the pump base. Check motor or engine rotation direction to insure
that the top of the industrial pump pinion shaft, on pumps with the pinion shaft gear
reduction, rotates away from the pump fluid end when in operation. On HD or other
pump models that do not have a pinion shaft, the top of the pump crank shaft should
rotate toward the pump fluid end when in operation.
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, insure 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.
4.3 Bearingless Hydraulic Motor Drives
L09 through L16 pumps may be ordered
with a flanged adapter that allows a
hydraulic motor to be direct coupled to the
pump frame. To mount this motor, first
attach the splined adapter or cross-over
adapter to the crankshaft. This adapter
can be splined, keyed, or threaded and
should make a positive stop on the crank.
Check to insure that the bronze bushing
has been pressed into the proper bore of

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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.
the motor. Install the o-ring around the pilot diameter on the mounting face of the
motor. Lubricate the o-ring with hydraulic fluid or o-ring lubricant to ease assembly in
the mounting flange/bearing housing. Clean the inside of the mounting flange/bearing
housing and motor face to remove any dirt or debris. Insert the hydraulic motor into the
mounting flange/bearing housing. A slight twist may be needed to allow the motor spline
to align with the internal spline of the adapter.
Torque the attaching bolts to the specified value. There should be no gap between the
face of the motor and the mounting flange/bearing housing. Complete the motor
installation by plumbing the hydraulic fittings and hose as instructed by the motor
manufacturer.
4.4 Suction Piping Recommendations
Poor suction piping practices are a very common source of pump problems. To insure
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 gage. 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.
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 insure 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

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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.
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.
4.5 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. 14.5 psi = 1 Bar
Table 1: Pipe Pressure Chart
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.
2. Always use a pressure gage 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. Insure 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 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
Allowable Working Pressure For Steel Pipe (PSI @ 100F)
Pipe Pipe Schedule Number
Size (inches) 40 80 120 160
XX
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
1 1/4 1,800 3,000 4,400 7,900
1 1/2 1,700 2,800 4,500 7,200
2 1,500 2,500 4,600 6,300
2 1/2 1,900 2,800 4,200 6,900
3 1,600 2,600 4,100 6,100
3 1/2 1,500 2,400 5,600
4 1,400 2,300 3,350 4,000 5,300
5 1,300 2,090 2,950 3,850 4,780
6 1,210 2,070 2,850 3,760 4,660
8 1,100 1,870 2,840 3,700 3,560

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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.
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.
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).
4.6 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.
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 insure safe and successful operation. It is the responsibility of the
operator to determine the correct start-up procedure for each installation.
1. Insure that the drain plug(s) on the bottom of the pump crankcase have been
installed and are tight. Insure that the oil level sight glass, if equipped, has been
properly installed.
2. Check the oil level to insure that the pump is properly filled 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.
NOTICE: The L16 model pump requires 80W90 non-detergent gear oil. For all other
pumps (L06 through L12) use Table 2 provided in Section 6.0 for selecting the correct
type of oil for your service.
•Pump model L06 & L06 HD requires 2 quarts (1.9 liters) of oil
•Pump model L09 & L09 HD requires 2 1/4 quarts (2.1 liters) of oil
•Pump model L11 & L11 HD requires 4 quarts (3.8 liters) of oil
•Pump model L12 & L12 HD requires 4 quarts (3.8 liters) of oil
•Pump model L16 requires 10 quarts (9.5 liters) of gear oil

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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.
3. If accessible, check the piston rods to insure that they are free from abrasive
particles or debris. Apply a light oil film to the piston rods before start up.
4. Insure 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.
6. Check to insure that power is locked out and tagged out. Turn the pump over by
hand if possible to insure free, unobstructed operation.
7. Apply small amounts of glycerin to the plungers and plunger rods to lubricate the
packing and seals.
8. 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.
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 insure
optimal performance from an FMC pump.
The intent of this section is to state the general lubrication requirements for FMC
pumps. The L16 model pumps require 80W90 non-detergent gear oil. For all other
pump models (L06 through L12) refer to Table 2. 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 below.
NOTE: Lubricant temperatures should not exceed 170°F (77°C) for continuous duty or
180°F (82°C) for intermittent duty applications. C rankcase 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.

Doc No: OMM50000903
Rev: B Page 15 of 65
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.
6.2 Oil Changes
•Oil changes must be carried out after first 100 hours of operation, and
subsequently after every 2500 hours or at least every 12 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 at least once per month. 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.

Doc No: OMM50000903
Rev: B Page 16 of 65
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.
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)
50 220 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
Internal Rust
Inhibitor
External Rust
Preventative
Cortec® VCI 329
Texaco® Metal
Protective Oil L
RECOMMENDED LUBRICANT CHART - L06 THROUGH L12
Motor Oil Lubricant Synthetic Lubricant *
SPECIALTY ITEMS
*Synthetic lubricants are suggested for high or low temperature service.
Cortecis a registered trademark of Cortec Corporation, St. Paul, NM
NOTE: L16 pumps require 80W90 non-detergent gear oil.
Table 2: Lubricant Recommendations

Doc No: OMM50000903
Rev: B Page 17 of 65
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.
7.0 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.
Interval Component Service Remarks
Break In
Crankcase Oil Change Drain and refill with new oil after first 50 hours of operation. Insure
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 Insure 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.
3 Months/ Stuffing Box Bolts Inspect Check the stuffing box bolts with a torque wrench to insure they are
within specification.
2,000 hours Connecting Rod
Bolts Inspect Check the connecting rod bolts with a torque wrench to insure they
are within specification. This should be done in conjunction with oil
change.
Table 3: Maintenance Chart

Doc No: OMM50000903
Rev: B Page 18 of 65
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 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) 20,000
Wrist Pin Bushings 10,000
Power End Cover Gasket 10,000
Connecting Rod Bearings 5,000
Oil Seal on Crankshaft or Pinion 5,000
Oil Seal on Piston (Pony) Rod 2,500
FLUID END COMPONENT ESTIMATED LIFE (Hours)
Fluid Cylinder 10,000
Pistons 5,000
Valve Seats 5,000
Valve Springs 5,000
Ceramic Liners 2,500
Valve Disc 2,500
Piston Cups 1,000

Doc No: OMM50000903
Rev: B Page 19 of 65
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.
9.0 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.
Each size “L” series pump may have a slightly different appearance. The Industrial
Pump models have a pinion shaft for internal gear reduction. Some of the “HD” series
and other models may be configured without the pinion shaft and may have a mount
face for a hydraulic motor.
The “HV” series will use AR valves and occasionally ball valves with fluid cylinders sized
for these valves. Therefore, actual pumps supplied by FMC may use different
components or may be configured differently than illustrated.
To order service parts or see exact component configurations for your particular pump,
refer to the cross-section parts drawing in the literature kit supplied with the pump.
Contact your local FMC pump distributor or FMC if you do not have this information.
Figure 3: Power End Components

Doc No: OMM50000903
Rev: B Page 20 of 65
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.
Figure 4: Fluid End Components
The illustrations above depict a typical pump with disc valves, and Type A piston cups.
Alternate construction “threaded” style valve covers and Type B style pistons may be
used on some models.
The service procedures outlined in this manual are intended to describe the more
popular type of pump. Other configurations and minor design differences may exist with
alternate pumps. Some procedures many require slight adaptations as a result.