Paco-Pumps KP Manual

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PACOPACO
PACOPACO
PACO
PUMPS
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
PACOPACO
PACOPACO
PACO
SPLIT CASE
PUMPS
TYPE KP & TYPE KPV
KP KPV

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PACOPACO
PACOPACO
PACO
PUMPS
TABLE OF CONTENTS
I. INSTALLATION -MECHANICAL
A. PumpIdentification ..................................................................................................................... 3
B. Receiving .................................................................................................................................... 3
C. TemporaryStorage ..................................................................................................................... 3
D. Location...................................................................................................................................... 3
E. PumpFoundation ....................................................................................................................... 3
F. SecuringTheBasePlate ............................................................................................................ 4
G. Piping-General ............................................................................................................................ 4
H. SuctionInletPiping..................................................................................................................... 4
I. DischargeOutletPiping .............................................................................................................. 5
J. ShaftSealing-GeneralComments ............................................................................................... 5
K. GlandAdjustment.................................................................................................................... 5-6
L. MechanicalSeals ....................................................................................................................... 6
M. CouplingAlignment..................................................................................................................... 6
II. INSTALLATION -ELECTRICAL
A. Motor-General............................................................................................................................. 7
III. OPERATION
A. Priming ....................................................................................................................................... 7
B. Pre-Start Checklist ..................................................................................................................... 7
C. MotorRotation............................................................................................................................ 7
D. StartingThePump...................................................................................................................... 8
E. PumpShutdown ......................................................................................................................... 8
F. Short DurationShutdown ............................................................................................................ 8
G. ExtendedPeriodShutdown......................................................................................................... 8
IV. MAINTENANCE
A. MotorLubrication ..................................................................................................................... 8-9
B. Pump Bearing Lubrication-GeneralComments............................................................................ 9
C. StuffingBoxPackingShaftSeal-WaterLubrication................................................................... 10
D. Packing Maintenance ............................................................................................................... 10
E. Disassembly for Maintenance-GeneralComments.................................................................... 10
F. Bearing,Seal, & Packing Replacement .................................................................................... 10
1.BearingReplacement............................................................................................................. 10
2.MechanicalSealReplacement............................................................................................... 11
3.PackingReplacement, Each Side .....................................................................................11-12
G. DisassemblyofHorizontal Pumps ............................................................................................ 12
H. Disassembly of Vertical Pumps ................................................................................................ 12
I. Component Inspection .............................................................................................................. 12
J. Reassembly of Pumps...................................................................................................... 12 & 15
V. ORDERINGPARTS ........................................................................................................................ 15
VI. TROUBLESHOOTING
A. Symptoms................................................................................................................................ 16
B. Possible Causes ................................................................................................................. 16-17
VII.WARRANTY.................................................................................................................................... 18
VIII.SALESANDSERVICE CENTERS.................................................................................................. 18
CAUTIONS and WARNINGS are inserted at key points of this manual to provide check points for personnel
and machinery safety. CAUTIONS: Apply to personnel. WARNINGS: Apply to personnel and machinery.

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PACOPACO
PACOPACO
PACO
PUMPS
I. INSTALLATION - MECHANICAL
Allinstallationsshouldbeperformedbypersonnelexpe-
rienced with the placement, connection, and alignment
ofpumpingequipment.Thefollowinginstructionsaregen-
eral in nature, and may not deal with the specifics of
yourinstallation. Read these instructions thoroughly
before installing and operating your PACO Type KP
Double Suction Centrifugal Split Case Pump. Suc-
cessfuloperationdepends oncarefulattentiontothe pro-
cedures described in Sections I, II, III and IV of this
manual. Keep this instruction manual handy for future
use.
A. PUMP IDENTIFICATION
• All PACO Pumps are identified by Catalog and
SerialNumbers. These are stamped on the pump
nameplate(Figure 1) affixed toeach pump casing
andshouldbereferredto in all correspondence with
theCompany.
PACOPACO
PACOPACO
PACO
FIGURE 1a
B. RECEIVING
•Checkpumping unit for shortages and damages
immediatelyuponarrival.Pumpaccessories, when
required,arepackagedinaseparatecontainer and
shipped with the unit.
•If equipment is damaged in transit, immediately
report the damage to the truck line’s agent.
Make a complete report on the freight bill to speed
satisfactory adjustment by the carrier.
•Unloadand handle the equipment with a sling
ortow motor. Do not lift unit by lifting lugs on the
pump case or eye.
• Eyebolts on the motor! Thesearenotintendedto
support the complete pump assembly but to aid in
C. TEMPORARYSTORAGE
•If the pump is not to be installed and operated within
a few days after arrival, store in a clean, dry area
ofmoderateambienttemperature.
•Rotate the shaft by hand monthly to coat the bear-
ingswith lubricant and retardoxidation and corro-
sion.
•Whereapplicable,followmotor manufacturer’s
storagerecommendations.
D. LOCATION
• Locate the pump as close to the suction supply as
possible. Use the shortest and most direct suc-
tionpiping practical. Refer to paragraph H. SUC-
TION(INLET)PIPING.
• Locate the pump below system levelwherever
possible. This will facilitate priming, assure a
steadyliquid flow, and providea positive suction
head.
• Make sure sufficient NPSH (Net Positive Suction
Head) is provided at the suction end by considering
the pump’s location in relation to the entire sys-
tem. Available NPSH must always equal or exceed
required NPSHspecifiedon the pump performance
curve.
• Always allow sufficient accessibility for mainten-
ance and inspection. Provide a clear space with
amplehead room foruse of a hoist strong enough
to lift the unit.
• Makesure a suitable power source is available for
the pump motor. Electrical characteristics should
match those specified on the motor data plate,
within the limits covered in Sections II & III.
• Avoidpump exposure to sub-zero temperatures to
preventpumpliquidfromfreezing.Iffreezing
conditions exist during shutdown periods, seeSec-
tionsIIIE and IIIF for specific recommendations.
E. PUMPFOUNDATION
• YourType KPpumpshould be permanently installed
onafirm, concrete foundation mounting pad ofsuffi-
cientsize to dampen any vibration and prevent any
deflection or misalignment. The pad may float on
springs or be a raised part of the equipment room
floor. The foundation should bepouredwithout in-
terruptionto3/4to 1-1/2 inches below the final pump
elevation. Thetop surface should be well scored or
CAT #: 29-20951-120061-1741
STOCK #:
SER #: ##
##
#97X12345
GPM:280 IMP.
DIA. “
BROOKSHIRE, TEXAS 34014412
Pumps
“”“”“”
“”“”
“”’
TDH:264 8.4"
disassembly.

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PACOPACO
PACO
PUMPS
groovedbefore the concrete sets to providea suit-
ablebonding surface for grout. Anchor bolts should
be set in pipe sleeves for positioning allowance, as
showninFig. 2a. Allow enough bolt length for grout,
lower base plate flange, nuts and washers. Allow
thefoundationtocureseveral days before proceed-
ing with pump installation.
F. SECURING THEBASE PLATE
•After the concrete pad has been poured and set,
lowerthepumpbase plate over the anchor bolts and
rest it on loose adjustment wedges or shims placed
G. PIPING-GENERAL
• Do not use pump as a support for piping! Use
pipehangers or other supports atproper intervals to
providecompletepiping support near the pump.
• Bothsuction and dischargepiping should be inde-
pendentlysupportedand properly aligned to insure
no strain is transmitted to the pump when the bolts
aretightened. Use of expansion jointsor vibration
padsdoes not preclude the need to properly support
thepiping.
• Do not spring or force piping when making
connections!
• Make sure all piping is as direct as possible.
• Avoid unnecessary bends and fittings.
H. SUCTION (INLET) PIPING
The sizing and installation of suction piping is particu-
larly important. It must be selected and installed in a
manner that minimizes pressure loss and permits suffi-
cientliquid flow into the pumpduring starting and opera-
tion. Many NPSH problems can be traced directly to
improperdesignof suction piping systems. Observe the
followingprecautionswhen installing piping:
•Suction piping should be as direct as possible, and
ideally the length should be at least ten times the
pipediameter. Short suction piping canbethesame
diameter as the suction opening. Longer piping
shouldbe one or two sizes larger (depending on
length),reducingtothediameter of the suction open-
ingnear the pump.
•Use an eccentric reducer, with the eccentric side
down, as shown in (Fig. 3a on page 5) when
reducingpipe diameter to the diameter of the pump
suctionopening.
• At no time should suction piping be smaller in
diameter than the pump suction opening.
•Horizontalsuction lines should follow aneven
gradient, if possible. A gradual upward slope to the
pump is recommended for suction lift conditions,
andagradualdownward slope for positive suction
head.
•Avoidany high points, such aspipe loops, as shown
in (Fig. 4a on page 5), that may create air pockets
and throttle the system or produce erratic
pumping.
24" along each side.
•Shimsorwedgesmust be placed to raise the bottom
of the base 3/4" to 1-1/4" above the pad, allowing
clearancefor grout. Level the pumpshaft, flanges,
and base plate using a spirit level, adjusting the
wedges or shims, as required.
•Checkto make sure the piping can be aligned to the
pump flanges without placing any strain on either
flange.
•Afterpump alignment hasbeen established, put
nutsonfoundation boltsandtightenthemjust enough
tokeeptheunit base plate from moving. Construct a
formor dam around the concrete padand pour grout
in and around the pump base. (See Fig. 2a). Grout
compensatesforunevenfoundation,distributes the
weight of the unit, and prevents shifting. Use an ap-
proved,non-shrinkinggrout(suchasEmbeco 636 by
MasterBuilders,Cleveland,Ohioorequivalent).
Allow at least 24 hours for this grout to set before
proceedingwithpiping connections.
•After the grout has thoroughly hardened, check the
foundation bolts and tighten if necessary. Recheck
thepumpalignmentafterthefoundationboltsarese-
cured.
BASEPLATE
.75 TO 1.25
ALLOWANCEFOR
GROUT
DAM
PIPESLEEVE
WASHER
WEDGESORSHIMS
LEFTINPLACE
LUG
FINISHED
GROUTING .25
TOPOFFOUNDATIONLEAVE
ROUGHCLEAN&WETDOWN
GROUT
FIGURE 2a: Anchor Bolt Installation.

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PACOPACO
PACO
PUMPS
•Install a valve in the suction line to isolate the
pumpduringshutdownandmaintenance.
•Valves should always be installed in positions
thatavoid air pockets. Globe valvesshould
not be used,particularly when NPSH is critical.
•Duringpumpingoperation,valvesonthesuctionline
must always be at FULL OPEN.
•Pressuregauges properly sized for therange of
operation, should be installed in gauge taps on the
pump suction and discharge nozzles.
I. DISCHARGE (OUTLET) PIPING
•Shortdischargepiping can be the same diameteras
thepump discharge opening. Longer piping should
beone or twosizes larger depending on length.
•Anyhighpointsin discharge piping may entrap air or
gas and thus retard pump operation. Air vents or
bleedvalves as a means torelease entrapped air
arerecommended.
•Aneven gradient is best for long horizontalruns of
dischargepiping.
•Installavalvenearthe pump discharge opening
to prime and start the pump. The discharge valve is
also used to isolate the pump during shutdown and
maintenance.
J. SHAFTSEALING-GENERAL COMMENTS
• PACO offers both mechanical seals and packed
stuffing boxes as a means to seal the shaft. Pumps
withstuffingboxes are normally packed before ship-
ment. If the pump is installed within 60 days after
shipment,thepacking material will be in good condi-
tion for operation with a sufficient supply of lubrica-
tion. If the pump is stored for a longer period, it may
benecessarytorepack the stuffing boxes (seePack-
ing Replacement, Page 11, to repack the boxes).
• The stuffing box must be supplied at all times with a
sourceofclean,clear liquid to flush and lubricate the
packing(seePacking Replacement, Page 11).When
pumpsareequipped withmechanicalseals,nomain-
tenanceor adjustment is required.
K. GLANDADJUSTMENT
• Make sure the flushing fluid lines are connected
andtheir valves are open. Afterpump start-up, with
thepump running,the packing gland should be ad-
justed to permit 40 or 60 drops per minute leakage,
thisis required for shaft sleeve lubrication.
FIGURE3a:
Suction Piping (Eccentric vs. Concentric).
FIGURE 4a: Suction Piping (Avoid high points).

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PACOPACO
PACO
PUMPS
• Thepackingglandshould be tightened evenlytopro-
videuniform compression on the packingmaterial.
Do not operate packing dry, and do not over
tighten packing gland to eliminate leaking as
the shaft sleeve will become damaged. After initial
start up, additional packing and adjustment may
be required until the packing is properly seated.
L. MECHANICAL SEALS
•All PACO Type KP Double Suction Centrifugal Split
CasePumps that areequipped with mechanical
seals are matched to the conditions for which the
pumpwas sold. Observe the following precautions
toavoid seal damage andobtain maximum seal life.
•Donot exceed temperature or pressure limitations
for the mechanical seal used.
• Do not run the pump dry or against a closed
valve! Dry operation will cause seal failure within
minutes.
• Purge all airfrom the seal chambers and recircula-
tion lines prior to operating the pump.
•Cleanand purge suction piping in new installations
beforeinstalling and operatingpump. Pipe scale,
weldingslag and other abrasives cancause rapid
sealfailure.
•The mechanical seal does not leak at all during
normaloperation,thereforeifany appreciable leak-
age occurs, the seal should be removed, inspected
and if necessary replaced. Mechanical seals
should be stocked as spare parts to reduce
equipment down time.
M. COUPLINGALIGNMENT
•Thefollowinganchoringandalignmentprocedureis
typical and, if performed with care, should result in a
smoothrunning,trouble-freeinstallation.
•Ifthe pump and motor wereshipped mounted on the
pump base as an assembly, remove the coupling
guard.
•Thepump and motor were accurately aligned at the
factory, but handlingduring shipment usually alters
this pre-alignment. Using a small straight edge and
feelergauges or a dial indicator, check for horizon-
tal,vertical, and angular misalignment of the cou-
plinghubs (Fig. 5a).
• Couplingalignment is proper when thedial indicator
reads no more than .005" runout in any direction (or
when the straight edge contacts both hubs evenly
FIGURE 5a: Checking Angular Alignment.
Checking Angular Alignment
Checking Parallel Alignment
inboth horizontal and vertical positions). If misalign-
ment is detected, loosen the motor and shift or shim
as necessary to re-align, then re-tighten bolts. Al-
ways align the motor to the pump as piping
strain will occur if the pump is shifted.
Never reposition pump on base!
•Afterfinalpiping connections to the pump have been
made,motor wiring compared, correct rotation has
been established, and piping filled with liquid, check
shaftalignment once again.
•Leavethe coupling guards off until thepump prim-
ingprocedure is completed for a final shaft align-
ment check.
•To protect personnel from rotatingmachinery,
Always install coupling guards after installation

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PACOPACO
PACO
PUMPS
WARNING: In the interest of operator safety, the unit
must not be operated above the nameplate condi-
tions. Such operation could result in unit failure
causing injury to operating personnel. Consult in-
structionbook for properoperationand maintenance
of the pump and its supporting components.
Makethe following inspections beforestarting your
PACOType KPDoubleSuction Centrifugal Split
Case Pump:


Make sure the suction and discharge piping has
beencleanedand flushed to remove dirt anddebris
beforeoperatingpump.


Make sure all wiring connections to the motor (and
startingdevice) match the wiring diagram andpro-
duceproperrotation.


If the motor has been in storage for an extended
lengthof time, either beforeor after installation, refer
tomotor instructions beforestarting.


Checkthe voltage, phase, and line circuit frequency
with the motor nameplate.


Turn rotating element by hand to make sure it ro-
tates freely.


Tighten plugs in gauge and drain taps. If the pump
is fitted with pressure gauges, keep gauge clocks
closed when not in use.


Recheckthe motor topump alignment per Coupling
Alignment,M, section  .


Check suction and discharge piping for leaks, and
make sure all flange bolts are securely tightened.
C. MOTORROTATION
CAUTION: Never check driver rotation unless pump
anddriver couplingsare disconnectedandphysically
separated. Failure to follow this instruction can re-
sult in serious damage to pump and driver if rotation
is wrong.
Aftertheunithasbeenwiredandcheckedtoensurethat
all components in the system (disconnect device, mag-
neticstarters,pilot devices and motors)areproperlycon-
nected, check motor rotation as follows:
•Make sure coupling is disconnected, then momen-
tarily energize the motors to insure that rotation is
correct as indicated by the arrow cast into
thepump casing. If rotation isincorrect, interchange
is complete; before starting pump!
II. INSTALLATION - ELECTRICAL
A. MOTORS- GENERAL
• Allelectricalinstallationsshould be accomplished by
qualified electrician. Disconnect and lock out the
electrical power source, before starting any
installationor service work.
•Readand match the starting andoverload control
deviceswith motor nameplate information. Always
followcontrolmanufacturer’sinstructions for proper
installationand connection.
•Grease lubricated motors are fully lubricated at the
timeofmanufacture and do not require further lubri-
cation if prompt installation follows. If the motor has
been in storage for six months or longer, refer to
MotorLubrication(page8), andlubricatebeforestart-
ing.
III.OPERATION
A. PRIMING
•ThePACOType KPDouble Suction Centrifugal Split
Case Pump is not self-priming, and must be com-
pletelyprimed (filled with liquid) beforestarting.
•If the pump will operate with a positive suction
head,primeby opening the suction valve andallow-
ing liquid to enter the pump casing. Open the air
vent at the top of the upper pump casing and the top
ofeach suction dome, and make sureall air is forced
fromthe pump by liquid before closing.
• IMPORTANT: Rotate the shaft by hand while prim-
ingandventing to free entrapped air fromthe
impellerpassageways.
•If the pump has suction lift, priming must be accom-
plishedby other methods. The use of foot valves,
ejectorsorvacuum pumps, or by manual filling ofthe
pumpcasing and suction line withliquid are possible
methodssuggested for this purpose.
• CAUTION: Never run the pump dry in the hope
that it will prime itself! Serious damage to the shaft
seals, pump wear rings and shaft sleeves will result.
B. PRE-STARTCHECKLIST

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PACOPACO
PACO
PUMPS
•Forovernightortemporaryshutdownperiodsunder
non-freezingconditions,thepump may remain filled
with liquid. Make sure the pump is fully primed be-
forerestarting.
•Forshortorfrequentshutdown periods under freez-
ingconditions, keep fluid moving within the pump
casing and insulate or heat the pump exterior to pre
vent freezing.
G. EXTENDED PERIODSHUTDOWN
•Forlong shutdowns or to isolate the pump for main-
tenance, close the suction and discharge valves. If
nosuction valve isused and the pump has positive
suction head, drain all liquid from the suction line to
terminateliquid flow into the pumpsuction nozzle. If
applicable,turn off any external sourceof cooling or
lubricatingfluid to theshaft seals. Remove plugs in
pumpdrain and vent taps, as required, and drain all
liquidfromthepumpcasing. Removepacking,ifap-
plicable.
•Iffreezingconditionswillexistduringlongshutdown
periods,after draining the pump, blow out allliquid
in passages and pockets with compressed air.
Freezingof pump liquid canalso be prevented by
fillingthe pump withantifreeze solution.
•Rotate the shaft by hand monthly to coat bearings
withlubricant and retard oxidation and corrosion.
•Whereapplicablefollowmotormanufacturer’s
storagerecommendations.
IV. MAINTENANCE
A. MOTORLUBRICATION
WARNING: Do not attempt any maintenance,
inspection, repair or cleaning in the vicinity of
rotating equipment. Such action could result in
personal injury to operating personnel.
Before attempting any inspection or repair on the
pump, the driver controls must be in the "OFF"
position, locked and tagged to prevent injury to
personnel performing service on the pump.
•Alwaysfollowmotor manufacturer’s lubrication
instructionsifavailable,andperiodicallycheckgrease
fittings and drain plugs for leaks.
•If lubricating instructions do not accompany motor,
referto(Table6a)forrecommendedlubricationperi-
ods.
two wires at the motor starter terminals T1 and T2.
•ForWye-Delta motors rotation hasto be verified for
both wye and delta connections.
D. STARTING THE PUMP
WARNING: The pump must not be operated without
an approved coupling guard in place. Failure to ob-
serve this warning could result in injury to operating
personnel.
•Installcoupling guard on flexible coupled units.
•Fully open valve (if any) in suction line, and close
valveindischargeline.
•Ifapplicable, turn onany external source of cooling
or lubricating fluid to the shaft seals.
•Startthe motor (pump).
•Immediatelyafter the pump reaches full operating
speed,slowly crack open thedischarge valve, and
open bleed valves at system high points. Do not
open discharge valve completely until system is full
of liquid, purged of air and checked for leaks.
•After entirely filling the system, fully open discharge
valveandclosesystembleedvalves.
•If the pump is fitted with pressure gauges, open
gaugecocksand record pressure reading for future
reference. Verify that the pump is performing in ac-
cordancewith the parameters specifiedon the per-
formancecurve.
•Checkandrecordvoltage, amperage per phase,
and kilowatts, if a watt meter is available.
E. PUMP SHUTDOWN
•Thefollowingshutdownprocedureswillapply in most
normalshutdownsfor the PACO TypeKPDouble
Suction Centrifugal Split Case Pump. If the pump
willbe inoperative for an extendedlength of time,
followstorage procedures in Extended Period Shut-
down.
•Alwaysclosethedischargevalvebeforestoppingthe
pump. Closethe valve slowly to preventhydraulic
shock.
•Cut and lock off power to the motor.
F. SHORT DURATIONSHUTDOWN

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PACOPACO
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PUMPS
• Table 7a lists the recommended types of grease for
motorlubrication. These types have all been thor-
oughlytestedand shouldbeusedwhenever possible.
B. PUMPBEARING LUBRICATION-
GENERALCOMMENTS
WARNING: Operation of the unit without proper lu-
brication can result in overheating of the bearings,
bearing failures, pump seizures and actual breakup
of the equipment, exposing operating personnel to
personal injury.
• PACO Type KPDouble Suction Centrifugal Split
CasePumpshave bearings that may be “sealed-for-
life”(requiringnolubrication),regreaseableoroil-lubed.
• Regreaseablebearingsare packed with grease at
ourfactory priortoshipping. Thisinitialfillingofgrease
isgood for one year or 2000 hours of normalopera-
tion,whichever occurs first. After thistime, a regular
greasemaintenanceschedulemust be implemented.
(SeeTable 8a for recommendedpumpbearing
greases).
TABLE 7a: Recommended Bearing Grease For Motors
MANUFACTURER BEARING LUBRICANT
CHEVRON
TEXACO
SRI Grease
NLGI No.2
Polystar RB2
NLGI No.2
•To lubricate motor while running or at rest, remove
greasedrain plug (if any) and filler plug on grease
fitting. Grease with clean lubricant until grease ap-
pears at drain hole or along motor shaft.
TABLE 8a: Recommended Bearing Grease For
Pumps.
• Do not over-grease! Too much grease can cause
over-heatingandpremature bearing failure.The
bearingmanufacturersrecommend that the bottom
1/3 of the bearing be filled with grease. That is all!
•On those PACOType KP Centrifugal Split Case
Pumpsorderedwith oil lubricated bearings,(SeeFig.
9a)a regular oil maintenanceprogram must
be enforced. Pumps with oil lubricatedbearings are
fittedwithatransparentreservoir(85)(constantlevel
oiler)that maintains the oil levelabout the centerline
ofthelowerbearing. Whennecessary, the oil supply
in the reservoir of the constant level oiler must be
renewed. To refill, remove the reservoirandfill with
oil. After filling with oil replace into operating posi-
tion.
• After the first 200 hours of operation the oil should be
changed. To change the oil,removethe drain plug
(16K)atthe bottom of the bearing coverandthe filler
plug (16B) (which also acts as a vent plug) at the top
of the housing. After draining oil, replace the fittings
andrefillwith an acceptable oil selected fromFigure
10a. After the first oil change, the oil should be
changedagainat2000hours and then at intervals of
8000hoursoronceyearlythereafter.
FIGURE 9a: Oil Lubricated Bearing Construction
85 26J 19B 14M 16B
19A
16K
WARNING: Pumps shippedpriortoAugust 1,1996,
refertofactory for bearing lubrication recommen-
dation.
MOTOR
RPM MOTOR HP OPERATINGCONDITIONS
STANDARD SEVERE EXTREME
10-40
50-150
200 & UP
(ALL HP)
1750 &
BELOW
1-3 YRS.
1YR.
1YR.
6MOS.
6MOS.-1 YR.
3MOS.
3MOS.
3 MOS.
6MOS.-1 YR.
6MOS.
6 MOS.
3MOS.
STANDARDCONDITIONS:
8Hours per day operation, normalorlight loading, clean air,
100ºF,maximumambienttemperature.
SEVERECONDITIONS:
Continuous24-houroperation, shock loading or vibration,poor
ventilation,100º-150ºF,ambienttemperature.
EXTREMECONDITIONS:
Continuousoperation, heavy shockor vibration, dirt ordust in air,
extremeambienttemperature.
ABOVE
1750
TABLE 6a: Recommended Lubrication Periods.
MANUFACTURER
SHELL
EXXON
CHEVRON
PHILIPS
TEXACO
LUBRICANT
DOLIUM®R
POLYREX®
SRIGREASENLGI2
BLACKPEARL -NLGI2
POLYTAC™
POLYSTAR RB
™

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C. STUFFING BOX PACKING SHAFT SEAL-
WATER LUBRICATION
• The stuffing box must be supplied at all times with a
source of clean, clear liquid to flush and lubricate the
packing. Only a sufficient volume of sealing liquid to
createadefinitedirectionofflow from the stuffing
box inward to the pump casing is required. Piping
from the pump discharge dome to the packing box is
suppliedonPACOTypeKPDouble Suction Centrifu-
galSplit Case Pumpswhenrequested.
D. PACKINGMAINTENANCE
• Thestuffingbox should be packed with fresh packing
beforeinitialstart-up, after repairs to the pump,and in
case of excessive leakage. Any time the packing is
replaced,the shaft sleeves should be inspected
forwear, roughness or scouring andreplacedwith
new ones, if necessary. For instructions on filling
the stuffing box see Packing Replacement;
for seal gland adjustment see Gland Adjustment.
E. DISASSEMBLYFORMAINTENANCE-
GENERALCOMMENTS
WARNING: Depending on theproduct being pumped,
the pump should be washed down before any work is
done on it.
WARNING: Observe extreme caution when venting
and/or draining hazardous liquids. Wear protective
clothing in the presence of caustic, corrosive, vola-
tile, flammable, or hot liquids. DO NOT breathe toxic
vapors. DO NOT allow sparking, flames, or hot sur-
faces in vicinity of the equipment.
• PACO Type KP Double Suction Centrifugal Split
CasePumps are designed for easeof maintenance
and, as such, the seals, sleeves, wear rings,
clearancesand bearings can be inspected without
havingtoremove the complete rotating element or
having to disconnect the suction or discharge pip-
ing, or disturbing the alignment of the pump set.
•Work on this equipment is to be performed only by
qualifiedpersonnel. Readthe following instructions
completelybeforeperforminganymaintenanceon
the pump.
•Before beginning disassembly of the pump, close the
suctionand discharge isolation valves, turnoff any
external source of cooling or lubricating fluid to the
shaft seals,drain the pump case by opening the drain
and vent plugs,and disconnect and lock off the mo-
tor power source.
F. BEARING, SEAL,& PACKING REPLACEMENT
All normally required parts for PACO Type KP Pumps
are available in kit form. Refer to B1b.2 (attached) for
correct kit selection.
1. BEARINGREPLACEMENT:
(Refer to drawings on pages 13 and 14).
• Removemotor.
• Removecouplinghalf(23B)from pump shaft (6A)
usinga wheel puller and removecoupling key (12B).
• Removebearingcaps(19A)and(19B).
• Loosen set screws in eccentric locking rings of bear-
ings (18A and 18B) and turn rings in opposite direc-
tion of pump rotation to loosen on shaft, or
removeretainingsnapring,whicheverisapplicable.
TABLE 10a: List of Acceptable Lube Oils.
LUBRICANT
MANUFACTURER
Aral Refining Co.
British Petroleum Co.
Calypsol Oil Co.
Standard Oil Co.
Esso Corporation
Fina Oil Company
Gulf Refining Co.
Socony Mobil Oil Co.
Shell Oil Company
Sundco Oil Company
The Texas Company
Wisura Rining Co.
BEARINGOIL
BRANDNAME
ARALOILCMU
ARAL OIL TU 518
BPENERGOL
TH100-HB
CALYPSOLBISONOIL
SR25ORSR36
CHEVRON
HYDRAULICOIL11
CIRCULATINGOIL45
ESSO-MAR52
TERESSO47
ESSTIC50
FINAHYDRAN34
FINACIRKAN 32
GULFHARMONY 47
GULFPARAMOUNT45
VAC HLP 25
MOBILUXD.T.E. 25
SHELLTellusOIL 29
SUNVIS821
TEXACOUrsaOil P 20
DEAVISCOBILSera4
WISURA Norma 25 (36)
WISURATempo 25 (36)

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PACOPACO
PACOPACO
PACO
PUMPS
• Removecapscrewsfrom each bearing housing (26J,
26K)and slide, with bearing, off its endof shaft. Note
that the seal seats in the bearing housings of seal
typepumpscanbebrokenifcareisnotexerciseddur-
inghousingremoval.
• Removebearings(18A,18B)frombearinghousings.
• Install New Seals and Seal Seats.
• Reinstallbearing housings less bearings, noting that
water slinger (13G) is in correct place. Care must
betakennot tobreakthesealseats ofsealtypepumps
by striking them against shaft.
• Cleanouthousings and slide new bearings overshaft
and into housings. Press only on inner race of bear-
ing. Usebearingwarmer, if available.
• Turn eccentric locking rings in direction of pump
rotation to tighten on shaft and tighten set screws,or
replacespacer and retaining snap ring,which-
everisapplicable.
• Packballbearingsandbearingcapcavitieswithclean
ball-bearinggrease.(SeeTable8a)
• Replacebearing caps (19A, 19B).
• Replacepackingglands (7A) after following packing
instructionsPacking Replacement, each side,ifpack-
ing type pump.
•Gentlytap coupling half (23B)on shaft (6A) over
key (12B). Do not tap if it can be pushed on. Undue
forceindrivingoncoupling half can damage ball-bear-
ings and/or fracture the seal faces. If there is diffi-
culty putting coupling onto shaft, heat up coupling
half to a temperature of not more than 300°
andthen slide onto shaftusing protective gloves.
• Replacemotorand realign.
NOTE: On vertically mounted pumps, it will be neces-
sary to remove the rotating assembly in order to change
lower bearing and seal assembly. Follow directions in
Section H, Disassembly of Pump.
2. MECHANICALSEAL REPLACEMENT
• Followabovestepstoremovebearinghousings(26J,
26K). NOTE: It is not necessary to remove bearings
fromhousings,however, it is recommended that bear-
ingsbe replaced.
• Removeold seal head andseal seat (14A) fromshaft
sleeveandbearing housing or seal cap respectively.
• Inspect shaft sleeves (5A, 5D) for scoring or pitting.
Replaceif surface is rough to your fingernail.
Proper seal seat installation:
• Cleanseal cap or bearing housing.
•Lightly lubricate new seat’s rubber cap with
liquid soap.
• Pressinsealseatwith proper tool or fingers, mak-
ing sure seat is seated squarely and all the way
into seal cap or bearing housing. Do not touch
seal seat or head faces.
Proper seal head installation:
• Cleanand lightly lubricate shaft sleeves (5A, 5D)
or shaft (6A). Make sure there are no sharp
edges or corners to cut the seal’s rubber parts.
•Lightly lubricate seal face elastomers with liq-
uid soap.
• Slide assembly onto sleeve or shaft until spring
touchesshoulder, using proper tool or fingers.
Do not compress spring. Make sure notches
on carbon ring match retainer’s lugs and spring
is in position on seal head.
• Reinstallbearinghousings (26J) with bearings,
noting that water slingers (13G) are in correct
places. Care must be taken not to strike seal
seats against shaft.
• Followremaining Bearing Replacement steps to
complete assembly.
3. PACKINGREPLACEMENT, EACHSIDE
• Removepackinggland(7A).
• Remove old packing (13A), lantern ring (5L), if any,
andpacking behind lantern ring, with apacking hook.
• If packing retainer (10K) comes out, replace it
againstretainingring(61J).
• Insert two new packing rings (13A) one at a time,
staggeringthe joints 180°and pushing them
firmly back against the packing retaining washer.
• Insertlantern ring (5L), if any.
• Insert three more rings of packing (applies to most
sizes) staggering joints 180°. If no lantern
ringisused, one extra ring of packing willberequired.

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PACOPACO
PACO
PUMPS
• Replacepacking gland (7A).
• Packingrequires lubrication. Therefore,it should
always be allowed to leak a 40 to 60 drops per
minute. Neverovertighten packing gland.
• Should it become necessary to over tighten the
packing (suction lift applications) while starting the
pump, make sure to loosen packing immediately
after pump is started, allowing a leakage of a 40 to
60drops per minute. Readjust after a few hoursof
running,if leakage increases.
G. DISASSEMBLY OF HORIZONTAL PUMPS
•Removebolts and nuts holding casing halves (1A &
1L) together, andremove capscrewsholding bear-
ing housing (26J, 26K) to pump casing.
•Removecase roll pin (98M)then lift off uppercase
(1A).
•Place casing gasket, as well as all other gaskets, in
water to keep them from drying out and shrinking.
•Removeshaft assembly from case.
•To disassemblerotating assembly,refertoBearingRe-
placement.
•Unscrewandremove shaft sleeves (5A, 5D) or
impeller lock nuts by turning them in direction of
pump rotation. One has R.H. threads. The other
has L.H. threads. Do not place wrench on the part
of sleeve that comes in contact with seal or
packing. Use strap wrench.
•Prywear ring retaining rings (61P)off of wear ring
(4A).
•Slidewearring (4A) off impeller.
•Mark impeller (3D) with a mark on coupling side
before removing it from shaft to be sure it will be
reassembledidentically.
•Press impeller (3D) from shaft (6A) and key (12A).
H. DISASSEMBLY OF VERTICALPUMPS
• Removecouplingguardandremovecouplinggrid(23C).
• Removeallcapscrews onbearinghousings(26J,26K)
except for two on lower case (1L) to hold rotating
assemblyin place while removing upper case (1A).
•Removecase roll pin (98M)then lift off uppercase
(1A).
•Place casing gasket, as well as all other gaskets, in
water to keep them from drying out and shrinking.
•Removeshaft assembly from case.
•Todisassemble rotatingassembly, refer toBearing Re-
placement.
I. COMPONENTINSPECTION
•While the pump is disassembled, all components
shouldbeinspected for wear,damage,deteriora-
tionor erosion.
•Shaftsleevesshouldbeinspectedandif wornordeeply
scoredshould be replaced.
•Impellerwear ring (if used) and casingwear ring
(4B)shouldbe checkedforerosionor wearandifbadly
deteriorated,replacedtoreneworiginalpumpperfor-
mance. The design clearance is .018" to .022"
diametrically. Clearances greater than .040" effect
pumpperformanceandnew rings should be installed.
•Examine the lapped faces of the mechanical seals
for scoring, heat checking or cracking. Examine
mechanicalsealelastomers (rubber components)
fordeteriorationorhardening. Replace mechanical
seals if any damage exists.
•Check any external source of cooling or lubricating
fluid lines, and/or recirculation lines and ports
for clogs, kinks or other restrictions.
•Cleanmachined mating surfaces ofall components
toremove grit, grime and/orold sealing material
beforereassemblingpump.
J. REASSEMBLY OF PUMPS
•Reinstall impeller (3D) and key (12A) on shaft (6A),
centeringimpeller on shaft with respect to sleeve or
lock nut threads. Be sure impeller is installed on
shaft the same way it came off, with vane curvature
and per mark made during disassembly. Note that
pump will deliver little or no water if impeller is in-
stalledbackwards.
•Be sure a good O-ring gasket (17S) is in place on
each sleeve, if shaft has sleeves. Replace as
necessary.
•Replaceshaft sleeves (5A,5D) or nuts, turning them
inopposite direction of pump rotation.Do Notplace
wrench on the part of sleeve that comes in contact
withseal or packing. Tighten evenly so impeller
position will not shift.
•Replacewearringretainingring(61P)overwear
ring(4A).
•Slidewear ring (4A) over eachimpeller hub.
(continued on page 15)

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PACOPACO
PACOPACO
PACO
PUMPS
Horizontally Mounted Type KP
18A 14A 11X
5A
4A
3D
35F
22A
7A
12A
98M 1L
1A
17E
10K
6A
12B
26K 13G
19A
1A 5D
61P 61J 5L 13A 26J
15A
17S
18B 19B
23B
ITEM
NO.
1A
1L
3D
4A
4B
5A
5D
5L
6A
7A
10K
PART
NAME
Upper Case
Lower Case
Impeller
Wear Ring
Casing Wear Ring
ShaftSleeve
ShaftSleeve
Lantern Ring
Pump shaft
PackingGland
Packing Retainer
ITEM
NO.
11X
12A
12B
13A
13G
14A
16D
15A
17E
17S
18A
PART
NAME
Gasket
Key
CouplingKey
Packing Ring
Water Slinger
Seal Seat
Plug
Petcock
O-Ring Gasket
O-Ring Gasket
Bearings
ITEM
NO.
18B
19A
19B
23B
26J
26K
61J
61P
98M
PART
NAME
Bearings
Bearing Cap
Bearing Cap
CouplingHalf
BearingHousing
BearingHousing
RetainingRing
RetainingRing
Roll Pin

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PACOPACO
PACOPACO
PACO
PUMPS
Vertically Mounted Type KPV
11X
12B
8J
19B
21F
1A
5D
17S
19A
20J
23B
26K
4A
12A
17E
13G
16D
18B
16F
16L
26K
11X
5A
98M
12B
1A
3D
1L
14M
18A
19A
20J
23C
23A
61P
17E
13G
16D
6A
16F
16L
26K
14A
ITEM
NO.
1A
1L
3D
4A
4B
5A
5D
5L
6A
7A
10K
PART
NAME
Upper Case
Lower Case
Impeller
Wear Ring
Casing Wear Ring
ShaftSleeve
ShaftSleeve
Lantern Ring
Pump shaft
PackingGland
Packing Retainer
ITEM
NO.
11X
12A
12B
13A
13G
14A
16D
16L
17E
17S
18A
PART
NAME
Gasket
Key
CouplingKey
Packing Ring
Water Slinger
Seal Seat
Plug
Plug
O-Ring Gasket
O-Ring Gasket
Bearings
ITEM
NO.
18B
19A
19B
20J
23B
26J
26K
61J
61P
98M
23A
23C
PART
NAME
Bearings
Bearing Caps
Bearing Caps
Base
CouplingHalf
BearingHousing
BearingHousing
Retaining Rings
Retaining Rings
Roll Pin
CouplingHalf
Grid

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PACOPACO
PACOPACO
PACO
PUMPS
•Replacewear rings (4A) on impeller (3D). Replace
withsealsorpacking. Replacebearinghousing (26K)
onshaft(6A)not to damage seal(14A). Replacebear-
ing(18A)into outboard housing and washer andsnap
ring.Replace coupling key (12B) with coupling half
(23B).
• For packing type pumps, follow steps under Bearing
Replacement ; then steps under Packing Replace-
ment, each side.
V. ORDERINGPARTS
•PACO Pumps hasover 90 years of experience in the
design,manufacture,andapplication of centrifugal
pumps and pumping systems. PACO's commitment
tostate-of-the-art pump design and quality manufac-
turing assures maximum user benefits with optimum
equipment life at lower cost.
• PACO’s commitment to their customers continues
throughanextensiveserviceorganization.Highly
trained technicians can assist customers with initial
startup,troubleshooting,repair, and system analy-
sis.
PACO maintainsanextensive stock of replacement parts
and parts kits for our pumps. In order to reduce pump
repairtime and shorten inconvenient pump service inter-
ruptions, it is suggested that the pump user stock spare
parts. ForsuggestedsparepartsseeReplacementParts
Guide B1b.2, attached, and contact your local PACO
Sales Representative (see back cover for the number of
your nearest PACO sales office). Since spare parts re-
quirementsand quantitiesvaryforspecific pumpconstruc-
tions,allowyourPACO Representativetohelpin defining
your spare part requirements. To ensure that the proper
replacement parts are ordered for your particular pump
model, when you call:
•Identifyall pertinent data from the pump name plate
(seePumpIdentification ). This should alwaysinclude
thepump Catalog or Model Number, and thepump
SerialNumber.
•Forreplacementimpellers,alsoincludefromthename-
platethe operating conditions (GPM andTDH) and
theimpellerdiameter.
•Identify all parts by item number and description as
indicatedby the appropriate assembly drawing in
this manual, for your particular pump model.

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PACOPACO
PACOPACO
PACO
PUMPS
B. POSSIBLECAUSES
1. Thepumphasnotbeenproperlybledofair.
2. Thepumpsuctionlinehasnotbeencompletelyprimed.
3. Thesuctionhead(NPSHR)requiredbythepumpistoo
high,orthenetpositivesuctionheadavailable(NPSHA)
at your facility is too low.
4. Thefluid pumped containstoomuchentrainedairor
gas.
5. There are air pockets in the suction line.
6. An entry of air has suddenly occurred in the
suction line.
7. An entry of air past the shaft seal into the pump
hasoccurred.
8. Theinletofthesuctionlineisinsufficientlysubmerged.
9. The suction valve is closed or only partially open.
10. The suction strainer is clogged with dirt or debris.
11. Thefootvalveis clogged or undersized.
12. Little or no cooling fluid supplied to the shaft seals.
13. The lantern ring is not positioned opposite the
flushinginlet, thereby restricting fluid flow.
14. Pump drive rotational speed too low.
15. Pump drive rotational speed too high.
16. Pumprotation wrong or impellerinstalled back-
wards.
17. Total head of installation(back Pressure) higher
than rated total head of the pump.
18. Totalheadofinstallation(backPressure)lowerthan
rated total head of the pump.
19. Density of fluid pumped differsfrom that specified
whenthe pump was purchased.
20. Viscosity of fluid pumped differs from that specified
whenthe pump was purchased.
21. The pump is operating at too low a rate of flow
(Thedischargevalve may be throttled too much).
22. Ifpumpsareoperatinginparallel,thepumpchar-
acteristicsmaynotbesuitablefor parallel operation.
23. The impeller may be clogged withdebris.
24. The impeller may be damaged.
SYMPTOMS CAUSE CODE
1*2*3*4*5*6*7*8*9*10*11*14*16*17*22*23*24*34
2*3*4*5*6*7*8*9*10*11*12*13*22*23*24*34
1*3*9*10*11*21*22*27*29*30*31*33*34*40*41
2*3*4*5*6*7*8*9*10*11*14*16*17*20*21*22*23*24*25*26*34
15*18*20*34
4*14*16*18*20*22*23*24*25*26*34
27*28*29*30*33*34*35*36*39*41
12*13*27*28*29*30*33*34*35*36*37*38*39*41
15*16*18*19*20*23*25*27*28*31*33*34*35*37*38*44
2*3*4*5*6*7*8*9*10*11*15*17*18*21*23*24*27*28*29*30*
31*32*33*34*40*41*42*45*46*
27*28*29*30*31*32*33*34*40*41*42*43*44*45*46
Pump does not deliver any liquid at start-up.
Pump stops delivering liquid after start-up.
Pump overheats and/or ceases to deliver liquid.
Insufficient flow rate.
Excessive flow rate.
Discharge pressure is too high.
Shaft seal leaks appreciably, or the packing leaks excessively.
Shaft seal or packing fails prematurely.
Pump uses too much power.
Pump runs rough and noisily.
Bearings overheat and/or fail prematurely.
VI. TROUBLE SHOOTING
A.

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PACOPACO
PACO
PUMPS
TROUBLESHOOTING-POSSIBLE CAUSES (Cont'd)
25. The casing and impeller wear rings may be exces-
sivelyworn.
26. There may be internal leakage from the discharge
to the suction compartments as the result of
internalgasketfailure.
27. There may be a misalignment of the pump shaft.
28. The shaft may chatter because it is bent.
29. The pump may run rough due to improper
balancingoftheimpeller.
30. The shaft may not be runningdueto worn bearings.
31. The impeller may be rubbing againsttheinside of
the case.
32. The concrete pad might not be of sufficient size to
providepumpstability.
33. The pump may have becomemisalignedduring
installation.
34. The operating conditions of the installationdonot
agreewiththe data specified when the pump was
purchased.
35. The shaft seal may be incorrectly installed, or the
stuffing box has not been packed correctly.
36. The shaft sleeve may be scored or pitted in the
regionofthe packing due to dirt orabrasivematter
intheflushing fluid.
37. Excessive tightening of the packing glandmayblock
theflushingporttherebydiminishingthe sealing fluid
flow.
38. Packing materialmayhavebecomewedged or
extrudedbetweenthe shaft and the bottomofthe
stuffinghousingdueto excessive clearance on the
Packingbackupwasher.
39. The mechanical seal may have been damaged by
runningdry.
40. There may be excessive axial thrust(sideloading)
duetoimproperimpellercentralalignment.
41. The bearings may be worn.
42. Thebearingsmayhave been damagedduring
installationand/ordirt or other foreign matter may
haveenteredthe bearings during greasingor
oiling.
43. Excessive greasing may cause the bearings to
overheat.
44. Inadequate lubrication may be causing bearing
failure.
45. Dirt may have entered the bearingspastthe
O-Rings.
46. Moisture may have entered the bearing housing
causing the bearings to rust.

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PACOPACO
PACO
PUMPS
SECTION1:THE CONTRACT
The Contract shall be comprised of the following terms, together with such terms and conditions as are set forth in
Seller’s written proposal or quotation (the “Quotation”), including any documents, drawings or specifications incorporated
therein by reference, and any additional or different terms proposed in Buyer’s purchase order (the “Purchase Order”)
that are accepted by Seller in writing, which together shall constitute the entire agreement between the parties, provided,
however, that preprinted terms on Buyer’s purchase order or invoice shall not apply and Seller gives notice of objection to
such terms. An offer by Seller in its Quotation that does not stipulate an acceptance date is not binding. This Contract
shall be deemed to have been entered into upon written acknowledgment of the Purchase Order by an officer or
authorized representative of Seller, which may not be modified, supplemented, or waived except in a writing executed by
an authorized representative of the party to be bound.
SECTION2: PRICE
The price quoted in the Quotation shall be the Purchase Price unless otherwise agreed in the Purchase Order. The
Purchase Price for equipment shall include packing for shipment. Field Services shall be provided at Seller’s standard
rates. All other costs, including packing for storage, freight, insurance, taxes, customs duties and import/export fees, or
any other item not specified in the Contract, shall be paid by Buyer unless separately stated in the Quotation and included
in the price quoted. Any sales, use, or other taxes and duties imposed on the transaction or the equipment supplied shall
be paid or reimbursed by Buyer.
SECTION 3:PAYMENTTERMS
Payment shall be due within 30 days of the date of Seller’s invoice in U.S. funds unless otherwise agreed. If Buyer does
not observe the agreed dates of payment, Buyer shall pay interest to Seller on overdue amounts at a rate that is the
higher of: 9% per annum or a rate 5% in excess of the rate borne from time to time by new issues of six-month United
States Treasury bills. Seller shall be entitled to issue its invoice for the Purchase Price for equipment upon the earlier of
shipment, or notice to Buyer that Seller is ready to ship, and for services, upon completion. If the Purchase Price exceeds
$250,000 USD, Buyer shall pay the Purchase Price in Progress payments as follows: Fifteen percent (15%) upon
submittal of general arrangement drawings, thirty five percent (35%) after receipt of first Bowl Casting, twenty percent
(20%) after first case/bowl hydro test or bowl machining and thirty percent (30%) after notification of ready to ship.
SECTION4:ACCEPTANCEAND INSPECTION
All equipment shall be finally inspected and accepted by Buyer within 14 days after delivery or such other period of time
as is agreed in the Purchase Order. Buyer shall make all claims (including claims for shortages), excepting only those
provided for under the warranty clause contained herein, in writing within such 14 day period or they are waived. Services
shall be accepted upon completion. Buyer shall not revoke its acceptance. Buyer may reject the equipment only for
defects that substantially impair its value, and Buyer’s remedy for lesser defects shall be in accordance with Section 10,
Warranty. If tests are made by Buyer to demonstrate the ability of the equipment to operate under the contract conditions
and to fulfill the warranties in Section 10, Buyer is to make all preparations and incur all expenses incidental to such
tests. Seller will have the right of representation at such tests at its expense, and the right to technically direct the
operation of the equipment during such tests, including requiring a preliminary run for adjustments.
SECTION5:TITLEAND RISK OF LOSS
Full risk of loss (including transportation delays and losses) shall pass to Buyer upon delivery, regardless of whether title
has passed to Buyer, transport is arranged or supervised by Seller, or start-up is carried out under the direction or
supervision of Seller. Delivery shall be ex works, INCOTERMS 2000. Loss or destruction of the equipment or injury or
damage to the equipment that occurs while the risk of such loss or damage is borne by Buyer does not relieve Buyer of
its obligation to pay Seller for the equipment.
SECTION6: PATENTORTRADEMARKINFORMATION
If the equipment sold hereunder is to be prepared or manufactured according to Buyer’s specifications, Buyer shall
indemnify Seller and hold it harmless from any claims or liability for patent or trademark infringement on account of the
sale of such goods.
SECTION7: CHANGES
Buyer may request, in writing, changes in the design, drawings, specifications, shipping instructions, and shipment
schedules of the equipment. As promptly as practicable after receipt of such request, Seller will advise Buyer what
amendments to the Contract, if any, may be necessitated by such requested changes, including but not limited to
amendment of the Purchase Price, specifications, shipment schedule, or date of delivery. Any changes agreed upon by
the parties shall be evidenced by a Change Order signed by both parties.
SECTION8:CANCELLATIONORTERMINATION
Buyer shall have the right to cancel the Contract upon 15 days’ prior written notice to Seller, and Seller shall stop its
performance upon the receipt of such notice except as otherwise agreed with Buyer. If Buyer cancels the Contract, it shall
pay: (a) the agreed unit price for equipment or components completed and delivered, (b) additional material and labor
costs incurred, and for engineering services supplied by Seller with respect to the canceled items, which shall be
charged to Buyer at Seller’s rates in effect at the time of cancellation, but which shall not exceed the contract price for
such items, and (c) such other costs and expenses, including cancellation charges under subcontracts, as Seller may
incur in connection with such cancellation or termination.
Terms And Conditions Of Sale
SECTION9:DELIVERYAND DELAYS
Seller shall use its best efforts to meet quoted delivery dates, which are estimated based on conditions known at the time

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PACOPACO
PACOPACO
PACO
PUMPS
of quotation. Seller shall not be liable for any nonperformance, loss, damage, or delay due to war, riots, fire, flood, strikes
or other labor difficulty, governmental actions, acts of God, acts of the Buyer or its customer, delays in transportation,
inability to obtain necessary labor or materials from usual sources, or other causes beyond the reasonable control of
Seller. In the event of delay in performance due to any such cause, the date of delivery or time for completion will be
extended to reflect the length of time lost by reason of such delay. Seller shall not be liable for any loss or damage to
Buyer resulting from any delay in delivery.
SECTION10:WARRANTY
Seller warrants that the equipment or services supplied will be free from defects in material, and workmanship for a
period of 12 months from the date of initial operation of the equipment, or 18 months from the date of shipment,
whichever shall first occur. In the case of spare or replacement parts manufactured by Seller, the warranty period shall be
for a period of six months from shipment. Repairs shall be warranted for 12 months or, if the repair is performed under
this warranty, for the remainder of the original warranty period, whichever is less. Buyer shall report any claimed defect in
writing to Seller immediately upon discovery and in any event, within the warranty period. Seller shall, at its sole option,
repair the equipment or furnish replacement equipment or parts thereof, at the original delivery point. Seller shall not be
liable for costs of removal, reinstallation, or gaining access. If Buyer or others repair, replace, or adjust equipment or
parts without Seller’s prior written approval, Seller is relieved of any further obligation to Buyer under this section with
respect to such equipment or parts. The repair or replacement of the equipment or spare or replacement parts by Seller
under this section shall constitute Seller’s sole obligation and Buyer’s sole and exclusive remedy for all claims of
defects. SELLER MAKES NO OTHER WARRANTYOR REPRESENTATION OFANY KIND WITH RESPECTTO THE
EQUIPMENT OR SERVICES OTHERTHANAS SPECIFIED IN THIS SECTION 10.ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITYAND FITNESS FOR
APARTICULAR PURPOSE,ARE HEREBY DISCLAIMED.
For purposes of this Section, the equipment warranted shall not include equipment, parts, and work not manufactured or
performed by Seller. With respect to such equipment, parts, or work, Seller’s only obligation shall be to assign to Buyer
any warranty provided to Seller by the manufacturer or supplier providing such equipment, parts or work.
No equipment furnished by Seller shall be deemed to be defective by reason of normal wear and tear, failure to resist
erosive or corrosive action of any fluid or gas, Buyer’s failure to properly store, install, operate or maintain the equipment
in accordance with good industry practices or specific recommendations of Seller, or Buyer’s failure to provide complete
and accurate information to Seller concerning the operational application of the equipment.
SECTION11:TECHNICALDOCUMENTS
Technical documents furnished by Seller to Buyer, such as drawings, descriptions, designs and the like, shall be
deemed provided to Buyer on a confidential basis, shall remain Seller’s exclusive property, shall not be provided in any
way to third parties, and shall only be used by Buyer for purposes of installation, operation and maintenance. Technical
documents submitted in connection with a Quotation that does not result in a Purchase Order shall be returned to Seller
upon request.
SECTION12:LIMITATIONOFLIABILITY
Seller shall in no event be liable for any consequential, incidental, indirect, special or punitive damages arising out of the
Contract, or out of any breach of any of its obligations hereunder, or out of any defect in, or failure of, or malfunction of the
equipment, including but not limited to, claims based upon loss of use, lost profits or revenue, interest, lost goodwill,
work stoppage, impairment of other equipment, environmental damage, nuclear incident, loss by reason of shutdown or
nonoperation, increased expenses of operation, cost of purchase of replacement power or claims of Buyer or customers
of Buyer for service interruption whether or not such loss or damage is based on contract, tort (including negligence and
strict liability) or otherwise.
Seller’s maximum liability under this Contract shall not exceed the Purchase Order amount of the equipment or portion
thereof upon which such liability is based. All such liability shall terminate upon the expiration of the warranty period, if not
sooner terminated.
SECTION13:THISCOMPANYISAN EQUALOPPORTUNITYEMPLOYER
This agreement incorporates by reference applicable provisions and requirements of Executive Order 11246 and FAR
Section 52.222-26 (covering race, color, religion, sex and national origin); the Vietnam Era Veterans Readjustment
Assistance Act of 1974 and FAR Section 52.222-35 (covering special disabled and Vietnam era veterans); and the
Rehabilitation Act of 1973 and FAR Section 52.222-36 (covering handicapped individuals). By acceptance of this
agreement Buyer certifies that it does not and will not maintain any facilities in a segregated manner, or permit its
employees to perform their services at any location under its control where segregated facilities are maintained, and
further that appropriate physical facilities are maintained for both sexes. Buyer agrees that it will obtain a similar
certificate prior to award of any nonexempt lower-tier subcontracts.
SECTION14:LAWANDARBITRATION
The Contract shall be governed by the law of the State of Texas. Any disputes arising out of this Contract shall be resolved
by informal mediation in any manner that the parties may agree within 45 days of written request for mediation by one
party to the other. Any dispute that cannot be resolved through mediation shall be resolved by binding arbitration
conducted in English in Portland, Oregon under the Commercial Rules of the American Arbitration Association except as
otherwise provided in this Section. The arbitration shall be conducted by three arbitrators chosen in accordance with said
Rules. The arbitrators are not entitled to award damages in excess of compensatory damages. Judgment upon the
award may be entered in any court having jurisdiction.

20
B1d.1
4/06
Supercedes 8/05
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