Crane WEINMAN 320 User manual

A Crane Co. Company
INSTALLATION AND OPERATION MANUAL
CENTRIFUGAL PUMPS
IMPORTANT! Read all instructions in this manual before operating pump.
As a result of Crane Pumps & Systems, Inc., constant product improvement program,
product changes may occur. As such Crane Pumps & Systems reserves the right to
 changeproductwithoutpriorwrittennotication.
420 Third Street 83 West Drive, Brampton
Piqua, Ohio 45356 Ontario, Canada L6T 2J6
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
www.cranepumps.com Form No. 096882-Rev. H
Sections: 320, 100, 200, 300 and 500

2
Please Read This Before Installing Or Operating Pump.
This information is provided for SAFETY and to PREVENT
EQUIPMENT PROBLEMS. To help recognize this information,
observe the following symbols:
IMPORTANT! Warns about hazards that can result
in personal injury or Indicates factors concerned with
assembly, installation, operation, or maintenance which
could result in damage to the machine or equipment if
ignored.
CAUTION! Warns about hazards that can or will cause minor
personal injury or property damage if ignored. Used with symbols
below.
WARNING! Warns about hazards that can or will cause serious
personal injury, death, or major property damage if ignored. Used
with symbols below.
Only qualied personnel should install, operate and repair
pump. Any wiring of pumps should be performed by a qualied
electrician.
WARNING ! To reduce risk of electrical shock, pumps
and control panels must be properly grounded in
accordance with the National Electric Code (NEC) or
the Canadian Electrical Code (CEC) and all applicable
state, province, local codes and ordinances. Improper
grounding voids warranty.
WARNING! To reduce risk of electrical shock, always
disconnect the pump from the power source before
handling or servicing. Lock out power and tag.
WARNING! Operation against a closed
discharge valve will cause premature bearing
and seal failure on any pump, and on end
suction and self priming pump the heat build
may cause the generation of steam with resulting dangerous
pressures. It is recommended that a high case temperature
switch or pressure relief valve be installed on the pump body.
CAUTION ! Pumps build up heat and pressure
during operation-allow time for pumps to cool
before handling or servicing.
WARNING ! Do not pump hazardous materials
(ammable, caustic, etc.) unless the pump is specically
designed and designated to handle them.
WARNING ! Do not wear loose clothing that may
become entangled in moving parts.
WARNING ! Keep clear of suction and discharge
openings. DO NOT insert ngers in pump with power
connected.
Always wear eye protection when working on pumps.
Make sure lifting handles are securely fastened each
time before lifting. DO NOT operate pump without safety
devices in place. Always replace safety devices that
have been removed during service or repair. Secure the
pump in its operating position so it can not tip over, fall
or slide.
DO NOT exceed manufacturers recommendation for
maximum performance, as this could cause the motor
to overheat.
WARNING ! To reduce risk of electrical shock, all wiring
and junction connections should be made per the NEC
or CEC and applicable state or province and local
codes. Requirements may vary depending on usage
and location.
WARNING! Products returned must be cleaned,
sanitized, or decontaminated as necessary prior to
shipment, to insure that employees will not be exposed
to health hazards in handling said material. All Applicable
Laws And Regulations Shall Apply.
Bronze/brass and bronze/brass tted pumps may
contain lead levels higher than considered safe for
potable water systems. Lead is known to cause cancer
and birth defects or other reproductive harm. Various
government agencies have determined that leaded
copper alloys should not be used in potable water
applications. For non-leaded copper alloy materials of
construction, please contact factory.
Crane Pumps & Systems, Inc. is not responsible for
losses, injury, or death resulting from a failure to observe
these safety precautions, misuse or abuse of pumps or
equipment.
SAFETY FIRST!
Hazardous uids can
cause re or explo-
sions, burns or death
could result.
Extremely hot - Severe burns
can occur on contact.
Biohazard can cause
serious personal injury.
Hazardous uids can Hazard-
ous pressure, eruptions or ex-
plosions could cause personal
injury or property damage.
Rotating machinery
Amputation or severe
laceration can result.
Hazardous voltage can
shock, burn or cause death.
Other brand and product names are trademarks or registered trademarks of their respective holders.
Weinman® is a registered trademark of Crane Pumps & Systems, Inc.
1997, 1998, 2000, 2003, 5/06, 9/06 Alteration Rights Reserved

3
A - GENERAL INFORMATION
TO THE PURCHASER:
Congratulations! You are the owner of one of the nest
pumps on the market today. These pumps are products
engineered and manufactured of high quality components.
With years of pump building experience along with a
continuing quality assurance program combine to produce
a pump which will stand up to the toughest applications.
Check local codes and requirements before installation.
Servicing should be performed by knowledgeable pump
service contractors or authorized service stations.
RECEIVING:
Upon receiving the pump, it should be inspected for
damage or shortages. If damage has occurred, le a claim
immediately with the company that delivered the pump.
If the manual is removed from the crating, do not lose or
misplace.
STORAGE:
Short Term - Pumps are manufactured for e󰀩cient
performance following long inoperative periods in storage.
For best results, pumps can be retained in storage, as
factory assembled, in a dry atmosphere with constant
temperatures for up to six (6) months.
Long Term - Any length of time exceeding six (6) months,
but not more than twenty four (24) months. The units
should be stored in a temperature controlled area, a roofed
over walled enclosure that provides protection from the
elements (rain, snow, wind blown dust, etc..), and whose
temperature can be maintained between +40 deg. F and
+120 deg. F. Pump should be stored in its original shipping
container and before initial start up, rotate impeller by hand
to assure seal and impeller rotate freely.
SERVICE CENTERS:
For the location of the nearest Weinman Service Center,
check your Weinman representative or Crane Pumps &
Systems Service Department in Piqua, Ohio, telephone
[phone] or Crane Pumps & Systems Canada, Inc.,
Brampton, Ontario, [phone].
B - INSTALLATION
1. FOUNDATION
The pump foundation should be su󰀩ciently substantial
to form a level, rigid support for the combined weight
of the pump and driver and maintain alignment of the
installed unit. Foundation bolts, of the proper size, should
be imbedded in the concrete. A pipe sleeve, about 2½”
diameters larger than the bolt, should be used to allow for
nal positioning of the bolts. See Figure 1.
2. MOUNTING:
Position the unit on the foundation and level the pump
base, using metal shims, so that the pump shaft is in
vertical alignment and the pump suction and discharge
anges are level in both vertical and horizontal plane. Base
may be grouted following alignment. Use a plumb line from
oor above to establish centerline of pump and exible
drive shaft and bearings.
COMMON BASE PLATE:
Pumps and drivers that are received from the factory
with both machines mounted on a common base plate,
were accurately aligned before shipment. All baseplates
are exible to some extent and, therefore, must not be
relied upon to maintain the factory alignment. Preliminary
alignment is necessary after the complete unit has been
leveled on the foundation, and again, after the unit is
piped, and rechecked periodically as outlined in the
following paragraphs.
Position unit on foundation and level the base plate,
using rectangular metal blocks and shims, or wedges
having a small taper as shown in Figure 2. A gap of 3/4”
to 1½” should be allowed between the base plate and
foundation for grouting.
Figure 1. Foundation Bolt
Location and Anchorage
Figure 2. Adjusting Wedges for Mounting

4
Adjust the metal supports or wedges until the shafts of
the pump and driver are level. Check the coupling faces,
as well as the suction and discharge anges of the pump
for horizontal or vertical position by means of a level.
Correct the positions, if necessary, by adjusting the
supports or wedges under the base plate, as required.
NOTE: A exible coupling should not be used to
compensate for misalignment of the pump and driver
shafts. The purpose of the exible coupling is to
compensate for temperature changes and to permit end
movement of the shafts without interference with each
other, while transmitting power from the driver to the pump.
CAUTION! - Remove and lock out power to
driver.
3. FIELD ALIGNMENT
The faces of the coupling halves should be spaced far
enough apart so that they cannot strike each other when
the driver rotor is moved toward the pump. The necessary
tools for checking the alignment of a exible coupling are a
straight edge and a taper gauge or a set of feeler gauges.
NOTE: In most cases where extreme accuracy is
necessary, a dial indicator may be used to align coupling.
Angular alignment check is made by inserting a taper
gauge or feelers between the coupling faces at 90-degree
intervals around the coupling. The unit will be in angular
alignment when the coupling faces are exactly the same
distance apart at all points. (See Figure 3).
Parallel alignment check is made by placing a straight
edge across both coupling rims at the top, bottom and
at both sides. The unit will be in parallel alignment when
the straight edge rests evenly on the coupling rim at all
positions. Allowance may be necessary for temperature
changes and for coupling halves that are not of the same
outside diameter. Care must be taken to have the straight
edge parallel to the axis of the shafts. Correction for
Angular and Parallel Misalignment is made by adjusting
the shims under the driver. After each change, it is
necessary to recheck the alignment of the coupling halves,
as adjustment in one direction may disturb adjustments
already made in another direction.
The permissible amount of coupling misalignment will vary
with the type of pump and driver, but should be limited to
approximately .002 inches per inch of shaft diameter when
nal adjustment is made. When the units are lined up cold,
it is necessary to make allowance for the vertical rise of
the driver caused by heating when in operation. When the
preliminary alignment has been completed the foundation,
bolts should be tightened evenly, but not too rmly.
WARNING - Coupling guards must be used to
avoid serious injury to operating personnel.
Figure 3
PERFECT
ALIGNMENT
PARALLEL
MISALIGNMENT
ANGULAR
MISALIGNMENT

5
4. GROUTING
Grouting compensates for unevenness in the foundation
and prevents vibration and shifting after mounting is
complete. Build a form around the base plate to contain
the grout, and sprinkle area with water to obtain a good
bond. The base should be completely lled with a good
quality, non-shrinking grout. The usual mixture for grouting
is one part Portland cement and two parts sand with
su󰀩cient water to ow freely. It is also desirable to grout
the leveling pieces, shims or wedges in place. Foundation
bolts should be fully tightened when grout has hardened,
usually about 48 hours after pouring.
5. PIPING
The piping practices you follow will directly a󰀨ect the
e󰀩ciency and power consumption of your pump. Pay
particular attention to the seemingly insignicant details
involved in piping for they make the di󰀨erence between
a good and bad installation. BOTH THE SUCTION AND
DISCHARGE PIPING SHOULD BE INDEPENDENTLY
SUPPORTED NEAR THE PUMP. LIBERAL USE OF PIPE
HANGERS AND SUPPORT BLOCKS WILL PREVENT
EXCESSIVE STRAIN ON THE PUMP CASING AND ON
THE PIPE JOINTS.
PROPER PIPING ALIGNMENT IS ESSENTIAL BEFORE
CONNECTION IS MADE. PIPING ALIGNMENT SHOULD
NEVER BE ACHIEVED BY FORCE, THIS COULD
PRODUCE STRAIN ON THE PUMP CASING.
SUCTION PIPING
The illustrations on page 6 are o󰀨ered as a help in
avoiding errors frequently made in suction piping, such as
abrupt changes in pipe size, the use of concentric reducer,
and the placing of an elbow in a horizontal plane next to
the suction nozzle of a single suction type of pump, etc.
The following are of equal importance and should be
carefully observed:
1. Never use pipe of a smaller size than the suction
connection of the pump. Usually, it is necessary
to use one pipe size larger, and sometimes several
sizes larger in order to avoid excessive frictional
loss with a resultant low NPSH available.
Select the size pipe necessary so that NPSHA
exceeds NPSHR by 3-5 feet.
When centrifugal pumps are operated with
insu󰀩cient NPSHA, cavitation will occur, resulting in
noisy operation and damage to the pump.
2. The suction pipe, from the source of water supply,
should be laid with a gradual incline, not on a level,
toward the pump, with the highest point in the line
at the pump suction connection. If the pipe is level
and if there are any high points in the line which will
form air pockets the pump will not operate properly.
3. If conditions require the use of a foot valve and
strainer, the ow area of the foot valve should be
from 1-1/2 to 2 times the area of the suction pipe;
and the strainer should have a free-opening area
equal to 3 to 4 times the area of suction pipe.
Otherwise excessive frictional loss will result.
4. If a gate valve is used on the suction line to a
pump operating under a suction lift, the valve
stem should be placed in a horizontal plane, or a
vertical, downward position in order to avoid a
possible air leak.
5. The end of the suction pipe should always be
submerged a minimum of 18”. If only limited
submergence can be had, the end of pipe should
be belled or ared. A board oating on the surface
of water surrounding the suction pipe is be helpful
against the formation of a vortex permitting air to
enter the suction pipe.
6. On pumps operating under high suction lift, the
suction piping should be tested thoroughly for air
leaks. A small volume of air will materially reduce
the capacity of pump, and a larger volume will
frequently cause loss of prime.
7. Installations which will be subjected to considerable
temperature variation should be provided with some
means for compensating for expansion and
contraction. A 50° temperature change means
an expansion or contraction of approximately 3/8” in
a pipe line of 100ft. length. This will result in
distortion and misalignment of pump, and
sometimes actual breakage.
8. The pipe should not be pulled into position by
tightening the piping joints. The pipe should meet
the pump and the pump should not be required to
meet the pipe. All piping should be supported
indepently of the pump. Pumps are not designed for
carrying loads imposed by piping and its contents.
9. When installing, guard against the possibility of
foreign material such as nails, bolts or pieces of
waste being left in the line, likely to lodge in the
impeller and cause loss of capacity and mechanical
damage.
10. When the suction supply is taken from a tank or
sump, incoming water should never be allowed to
fall into the water near the end of suction pipe. This
will carry air down into the suction pipe.
SUCTION DIFFUSER FEATURES:
• Reduces both space and installation costs by replacing
an extended entry pipe, a long radius elbow and a
strainer.
• Disposable ne mesh start-up strainer provided on all
models, guarantees a clean system.
• Steel stabilizing vanes ensure smooth ow into the

6
pump.
• Drain/Purge plugs furnished to routinely remove
foreign particles and protect pump and other system
components.
• Optional pressure tap allows monitoring of strainer
condition.
• Blowdown tapping supplied to protect pump seals from
drainage by foreign particles.
SUCTION DIFFUSER INSTALLATION:
1. Provide for distance “L2” (see Suction
Di󰀨user Catalog page for illustration and “L2”
dimension). “L2” represents distance necessary
for removal of strainer and stabilizing vanes.
2. Mount standard I.D. support leg and foot to pad
cast-on body of suction di󰀨user.
3. After piping and initial circulation are complete,
remove ne mesh start-up strainer.
4. If optional pressure tap is provided, a gauge can
then be connected to both the pump suction
and the Suction Di󰀨user’s schrader valve. An
increase in pressure drop will indicate when the
strainer may require cleaning.
SUCTION DIFFUSER MAINTENANCE:
It is recommended that the stabilizing vanes be
periodically inspected and the permanent strainer be
periodically cleaned. This will ensure smooth ow into
the pump and avoid damage to the pump components.
DISCHARGE PIPING
The discharge piping should never be of a smaller size
than the discharge connection of the pump and, in most
cases, should be one and sometimes two sizes larger
in order to avoid excessive frictional loss. Avoid sudden
or abrupt changes in pipe sizes which cause shock or
frictional losses.
Use increasers of the concentric type. Eccentric
increasers are not required for the discharge line.
Gate and check valves should be installed in the line with
the check placed between pump and gate valve. A check
valve, under most conditions of service, is required as a
protection to the pump against excessive surge pressure
when a foot valve is used on the suction, as well as for
protection against reversed rotation if no foot valve is
used.
In installations where noise is highly objectionable,
such as hospitals, hotels and apartment buildings, the
discharge pipe should not be attached to steel work or
hollow walls without being insulated properly against
vibration. In extreme cases, it is desirable that the dis-
charge line be provided with a exible connection.
TDV DESIGN AND OPERATION:
The principle of operation for the TDV valve is extremely
simple. When in the open position, the clapper swings
out of the ow. If the ow stops, the spring allows the
clapper to close.
When closing the valve, a nal “bumping” action with a
wrench gives the nal positive seal closure.
TDV MAINTENANCE:
The TDV valve requires no day-to-day maintenance or
lubrication, but it is suggested that the valve be operated
once a month to assure it is in operable condition.
If at any time it is suspected that the valve is leaking,
either in the plug position or as a check, it is possible that
foreign particles are trapped between the mating faces
of the seal and seat, and are preventing tight seal action.
Cycling the valve from full open close causes a jetting
action that will wash away foreign particles that may be
trapped. Also, cycling the valve will usually squeeze any
build-up away from the seat mating faces and allow tight
shut-o󰀨 again.
It is not uncommon to discover that when a TDV valve
has been reported leaking in the closed position, that the
valve is actually not completely closed. The cam-based
design of the TDV valve makes it almost impossible
to over-close. The TDV is designed to close at an
approximate ninety degree rotation of the plug stem.
To close the valve, rotate the stem on quarter turn and
tighten.
The TDV wrench is specially suited for the cam-based
design of the valve to assure a positive closure. The
most satisfactory closure is accomplished by turning the
plug to a tight t and then “bumping” the plug lightly using
the TDV wrench. The use of cheater or a handwheel
should not be necessary.
If these procedures have been completed and a
tight seal is still not apparent, the valve should be
disassembled and inspected for damage of the clapper
seal and seat face, or for excessive wear of the clapper
pin and pin hanger supports.
For balancing procedures, please refer to the TDV
Catalog page.
Open Position
With the plug in the open
position, the clapper
operates as an e󰀩cient
check valve. The clapper
being hinged at an angle
provides 90% less dead
weight to minimize clapper
slam and chatter.
Balancing
The plug holds the clapper
at the selected ow
requirement for balancing.

7
REPAIR CLAPPER SEAL:
HVAC TDV valves are equipped with Buna-N clapper
seals. If the clapper seal is damaged, they can be
replaced by removing the clapper and installing a new
seal (see steps 1-3 below).
Step 1
Place the outer edge of the seal into the clapper groove
as shown.
Step 2
Using a blunt screwdriver, force the inside lower edge of
the seal into the clapper groove.
Step 3
As you work the seal in, maintain force on the portion
of the seal that has been installed. This will prevent
elongation and excessive build-up of closing portion.
REPLACEMENT PROCEDURE:
1. Position clapper rmly against the seat face.
2. Pre-load spring and bind using lament tape (see
Figure 4a)
3. Take the clapper pin with the extension screw and
insert the pin into the spring and support hangers (see
Figure 4b)
4. When holding the clapper rmly against the seat, the
clapper pin must move freely into position.
5. Remove the extension screw, replace the clapper pin
plug, and cut the lament tape to free the spring.
6. Check the clapper for free movement by opening and
closing the clapper by hand.
7. If movement is free, complete the valve assembly.
6. WIRING
WARNING: DO NOT START PUMP UNTIL IT
HAS BEEN FILLED WITH WATER.
1. Motor wiring should conform to national and local
electrical codes.
2. Use wire of adequate size to prevent voltage drop.
3. Pump should be on a branch or separate circuit,
fused or circuit breaker, protected, with a manual
disconnect.
4. Connect the electrical supply from the switch to the
motor terminals, following the wiring diagram on
the motor nameplate or terminal cover plate.
NOTE: be sure that the connections to the motor
terminals correspond with the voltage to be
applied. (See Chart)
Check wiring and fuse charts before connecting wires to
service line. Make sure the voltage and frequency of the
electrical current supply agrees with that stamped on the
motor nameplate. If in doubt, check with power company.
Closed Position
As the plug is rotated
toward the closed position,
the downstream part
closes rst. This equalizes
the Pressure so the
clapper closes with little
resistance.
Positive Seal Closure
Final closing is
accomplished by the plug
camming against the back
of the clapper.
Figure 4a
Spring
Figure 4b
Clapper Pin Plug
Clapper
Clapper Pin

8
PIPING
Right Wrong
FIGURE 5

9
Some pumps are equipped with three phase motors. Three
phase motors require magnetic starters, and can run in
either direction, depending on how they are connected to
the power supply.
7. ROTATION
The rotation is indicated by an arrow on the casing, and
the correct rotation of three phase motors should be estab-
lished before assembling the coupling on base mounted
units. The pump should not be operated backwards or in
reverse rotation. If the motor operates in the wrong rota-
tion, interchange any two of the lead wires and the correct
rotation will result.
8. GROUNDING MOTOR
WIRING TO THIS PUMP MUST BE INSTALLED
AND MAINTAINED IN ACCORDANCE WITH
THE NATIONAL ELECTRICAL CODE OR
YOUR LOCAL ELECTRIC CODE. IF MORE
INFORMATION IS NEEDED, CALL YOUR
LOCAL LICENSED ELECTRICIAN OR YOUR
POWER COMPANY.
It is required that a permanent ground connection be made
to the unit using a conductor of appropriate size from a
metal underground water pipe or a grounded lead in the
service panel. Do not ground to a gas supply line. Do not
connect to electric power supply until unit is permanently
grounded. Connect the ground wire to the approved
ground and then connect to the terminal provided.
NOTE: CENTRIFUGAL PUMPS SHOULD NEVER
BE STARTED OR RUN DRY. OPERATING
A PUMP DRY WILL CAUSE SCORING OF
THE MECHANICAL SEAL, RESULTING IN
PREMATURE SEAL FAILURE. TO PREVENT
THE PUMP FROM BEING RUN DRY, IT SHOULD
BE PRIMED BEFORE STARTING.
9. FLOODED SUCTION PRIMING
This method of priming a pump is relatively simple. The
liquid source is located above the pump and all that is
necessary to prime the pump is to open the air vent valve
or plug in the pump casing and to crack the gate valve
in the suction line. The suction line and pump should be
lled slowly until a steady stream of liquid is observed
owing from the air vent. After the pump is operating, it is
recommended that the air vent valve or plug be opened
again to insure that all air has been expelled from the
pump casing.
10. SUCTION LIFT PRIMING
A foot valve should be used for priming on suction lift
applications. The foot valve, located at the end or foot of
the suction piping, functions as a check valve and allows
ow in one direction only, toward the pump. Otherwise, all
the liquid will drain from the pump and suction piping back
into the sump after shutdown.
Initial priming is accomplished by completely lling the
suction piping and pump casing with the liquid to be
pumped. This can be done by removing the air vent valve
or plug at the top of the pump casing, and inserting a
pipe nipple in the orice with an appropriate increaser to
accommodate a hose connection. A priming line can also
be inserted in the discharge piping between the check
valve and the pump, or the priming can be done with a
bucket and funnel. The important thing is to completely ll
the suction pipe and pump casing with liquid.
When the pump is started, the vacuum created by pumping
the priming uid, combined with atmospheric pressure in
the liquid well, forces liquid into the suction piping, thus
opening the valve and keeping it open until the pump
is shut down. When the pump is shut down, The liquid
being pumped reverses its ow causing the valve to close.
The liquid is now trapped in the suction piping and pump
casing, thus maintaining a prime on the pump.
11. VACUUM PRIMING
Vacuum priming consists of removing air from the pump
casing and suction piping and drawing liquid into them by
means of a vacuum creating device. The types of vacuum
equipment range from a simple hand pump to a complex
central priming system. Your specic priming requirements
will govern what type of vacuum primer you use.
12. STARTING
For initial starting, the gate valve in the discharge line
should be closed, and opened gradually as the motor
approaches full speed, usually in from ve to ten seconds.
After the pump has once been in operation so that the
discharge line has been completely lled, it is then
unnecessary to close the gate valve in starting.
13. SEASONAL SERVICE
To Take Out Of Service:
1. Drain the liquid from the pump to prevent freezing
and damage to the pump body. It is recommended
that a good rust inhibitor be put into the liquid end
to prevent excessive corrosion. Keep the motor
dry and covered.
2. To drain, remove the drain plug which is located
below the suction inlet of the pump. Drain the
suction pipe to a point below the frost line.
All other pipes, which may be exposed to freezing
temperatures, should also be drained.
3. Remove the priming plug. This will help the pump
body to drain by permitting air to enter the case.
To Place Pump Back Into Service:
1. Replace all drain plugs previously removed, using
pipe joint compound on all male threads.
2. If the suction line has been removed, be certain
that it is re-connected.
3. Check to be certain that the pump shaft turns
freely.
4. Prime and start.

10
DO NOT START THE PUMP UNTIL IT IS FILLED
WITH WATER.
14. STUFFING BOX - MECHANICAL SEAL
With the exercise of a few precautions a mechanical
seal will furnish very satisfactory operation in pumps.
Precautions which should be observed are:
1. Do not run the pump dry. The at faces of the seal
are lubricated by the liquid being pumped.
2. Vent the seal housing if it is the high point in the
pump.
3. Purge the system thoroughly to remove welding
slag, scale, or dirt which may injure the seal
prematurely due to the abrasive condition of liquid.
15. INSTALLING A NEW MECHANICAL SEAL
CAUTION: this seal is a precision product and should be
handled accordingly. Be especially careful not to scratch
or chip the lapped sealing faces of the washer and oating
seat. If reinstalling a used seal, both sealing faces should
be relapped.
INSTALLING STATIONARY ELEMENT
The seat must be seated securely in the seat ring with
the lapped face out. The unlapped face is marked and
correctly assembled when shipped. Oil the seat ring with
light oil and seat it rmly and squarely. If this cannot be
done with the ngers, use a sleeve as shown in Fig. 5,
inserting the cardboard shipping disc between the sleeve
and the lapped face to prevent scratching sealing face.
INSTALLING ROTATING ELEMENT
Oil shaft with light oil. Shaft should be clean and polished
smooth. Slide seal body on shaft (washer end rst) and
seat rmly. A sleeve as shown in Fig. 6 will facilitate this
operation and prevent the rubber driving ring from pulling
out of place as the seal body is slid along the shaft.
Assembly of impeller automatically sets seal in proper
position.
Make sure at all times, and particularly before nal
assembly, that both sealing faces are absolutely clean.
Sealing faces should be oiled with clean, light oil.
NOTE: DO NOT USE PETROLEUM BASED PRODUCTS
TO LUBRICATE EPT OR EPDM ELASTOMERS - USE
ONLY WATER BASE LUBRICANT.
WARNING:
Do not work on this pump until you are sure the pump
and associated piping are totally depressurized, and if
pumping hot liquids that the temperature is safe to handle.
Be sure that electricity to the motor is shut o󰀨 and locked
out, or if the motor is to be tested while running that it
is conducted by a qualied person and safe electrical
procedures are followed.
To insure safety and a successful repair, if there is
anything about the pump and motor you do not completely
understand, contact your distributor or the factory for
instructions.
BEARING LUBRICATION:
A #2 grease is recommended. Use a water resistant,
nonberous grease. Lithium base greases are excellent
and molydisulde is acceptable. Approximately 1/2 ounce
of grease, or a teaspoonful for bearings of small size, and
a tablespoonful for larger sizes, is needed each time a
bearing is relubricated.
FIGURE 6 Sleeve
Cardboard
Shipping disc
FIGURE 7

11
SERVICE GUIDE
TROUBLE AND CAUSE REMEDY
1. Failure to pump
a. Pump not properly primed
b. Suction lift too great
c. Speed too slow
d. Motor running in wrong direction
a. Be sure that pump case and suction line are full of water. See priming
instructions.
b. Locate the pump closer to the water source. Make sure that the suction
piping diameter is large enough.
c. Check the voltage at motor terminals and at the meter when the pump is
operating. Check for loose connections. If voltage is low, contact your
Power company. Be sure that wire size is adequate.
d. Check the wiring diagram on the motor nameplate. If it is a 3-Phase
motor, refer to the Wiring instructions.
2. Reduced Capacity and/or Head
a. Clogged impeller
b. Air pockets or leaks in suction line
c. Strainer too small or clogged
d. Insu󰀩cient submergence of suc-
tion
pipe
e. Excessive suction lift
f. Excessively worn impeller
a. Remove and clean
b. Check the line for air leaks for excessive lift.
c. Check the end of the suction pipe or foot valve to see that it is not plugged
or buried in mud or sediment. When installing in pond or lake, support the
suction line so that it will be submerged in water, but nut imbedded in mud
or sediment. A strainer with greater screen area may be required.
d. Add su󰀩cient pipe to keep the submerged end well below
the water surface.
e. If caused by suction pipe friction, increase the size of the pipe; otherwise
move the pump closer to the water level.
f. Order replacement parts. See repair list.
3. Pump Losses Prime
a. Air leaks in suction line
b. Excessive suction lift and
operating too near shut-o󰀨 point
c. Water level drops while pumping,
exposing suction pipe or strainer
a. Check suction piping. Piping might have frozen, causing it to split.
b. Move the pump closer to the water level.
c. Check the water supply. Add a length of pipe to the suction line to keep the
submerged end under water.
4. Motor Will Not Start
a. Blown fuses
b. No electric current at motor
c. Motor hums but will not start
d. Motor damaged by lightning or
voltage surge
a. Replace with new fuses.
b. The power supply may be o󰀨, the connections may be loose or incorrect,
or the wire may have been chewed by rodents.
c. Turn power o󰀨. Check the rotating element of the pump to see that it turns
freely.
d. Take the motor to any authorized motor repair shop

IMPORTANT!
WARRANTY REGISTRATION
Your product is covered by a warranty:
www.cranepumps.com/downloadables/CATALOGS_OIPMs/Warranty/24MonthWarranty.pdf
If you have a claim under the provisions of the warranty, contact your local
Crane Pumps & Systems, Inc. Distributor.
RETURNED GOODS
RETURN OF MERCHANDISE REQUIRES A “RETURNED GOODS AUTHORIZATION”.
CONTACT YOUR LOCAL CRANE PUMPS & SYSTEMS, INC. DISTRIBUTOR.
Products Returned Must Be Cleaned, Sanitized,
Or Decontaminated As Necessary Prior To Shipment,
To Insure That Employees Will Not Be Exposed To Health
Hazards In Handling Said Material. All Applicable Laws
And Regulations Shall Apply.
IMPORTANT!
WARRANTY REGISTRATION
Your product is covered by the enclosed Warranty.
If you have a claim under the provision of the warranty, contact your local
Crane Pumps & Systems, Inc. Distributor.