Crane WEINMAN 6012CV User manual

A Crane Co. Company
INSTALLATION AND OPERATION MANUAL
IN-LINE
UNIPUMPS
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, Bramton
Piqua, Ohio 45356 Ontario, Canada L6T 2J6
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
www.cranepumps.com Form No. 119978-Rev. E
TYPE: CV
Model: 6012CV
Size: 6x6x12
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con-
ducted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.

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 orIndicates 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, burnes or death
could result.
Extremely hot - Severe
burnes 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.
8/2004, 5/06, 9/06 Alteration Rights Reserved

3
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 con-
tinuing 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 dam-
age 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, Inc., Service Department in Piqua, Ohio, telephone
[phone] or Crane Pumps & Systems Canada, Inc.,
Bramton, Ontario, [phone].
SERVICE
Your Weinman In-Line Unipump requires no maintenance
other than periodic inspection and occasional cleaning.
The inspection is to prevent breakdown, thus obtaining
optimum service life. The pump is lubricated by the liquid
being pumped and therefore does not require additional
lubrication. The motor, however, may require lubrication,
in which case the motor manufacture’s recommendation
should be followed.
REPAIRS
The pump may be disassembled using the illustrations and
text provided. Although complete disassembly is covered,
it will seldom be necessary to completely disassemble your
Weinman In-Line Unipump.
Inspect removed parts at disassembly to determine their
reusability. Cracked casing should never be reused.
Gaskets should be replaced at reassembly as a matter of
economy; they are much less expensive to replace rou-
tinely than to replace as the need occurs. In general, it is
economical to return only the motor and motor controller to
the manufacturer for repair.
DISASSEMBLY
Disassemble only what is needed to make repairs or to ac-
complish inspection. Proceed to disassemble the pump as
follows: (See Figure 1)
1. Break all electrical connections to prevent any
Possibility of pump starting during disassembly.
2. Remove plugs (81) from casing (1) to drain pump.
3. Remove all relief, cooling, ushing or drain lines from
the pump. Break suction and discharge connections
only if it is desired to remove casing (1).
4. Remove capscrews (82) and lift pump assembly
from casing (1). Remove gasket (73).
5. Unscrew impeller screw (26) and remove washer (28),
O-ring and gasket (not shown).
6. Slide impeller (2) and impeller key (32) from shaft.
7. Wearing rings (25) and (27) are pressed into their
housings and must be removed with a puller. New
ring(s) should be used for reassembly, since it is
likely that during removal this will be lost.
8. Slide seal (80) rotating assembly o󰀨 shaft sleeve
(14). The rubber in the seal may partially adhere to
the sleeve.
CAUTION! - The mechanical seal (80) (Figure 2)
is a precision product and must be treated as
such. During removal, great care must be taken
to avoid dropping any part of the seal. Take
particular care not to scratch the lapped faces
on the washer or the sealing seat. Do not put
a seal back into service until the sealing faces
of the washer and seat have been lapped or
replaced.
9. Unscrew capscrew (83) and remove casing cover
(11).
10. Remove seal (80) stationary element from casing
cover (11).
11. Remove the shaft sleeve (14).

4
REASSEMBLY
Reassembly will generally be in reverse order of
disassembly. If disassembly was not complete, use only
those steps related to your particular repair program.
1. The sleeve must be checked for abrasion, damage
during disassembly, or corrosion that can occur
when uid residue penetrates between the seal (80)
and sleeve (14). The sleeve under the seal should
be lightly polished to a 32 RMS nish before
reassembly. Do not reuse a pitted or damaged
sleeve. Slide the sleeve (14) on the motor shaft (6).
2. The mechanical seal (80) (See Figure 2) cannot be
installed as an assembly. It is necessary to have the
seal seat properly in place before the balance of
parts can be added. Thoroughly inspect the seal
cavity in the bracket for burrs or nicks which could
damage the seat of the seal. Apply a lm of soap
paste or ax soap (Do not use oil or grease) to
the seal seat and install, taking care to seat it evenly
and squarely.
NOTE: If it is not possible to insert seal with ngers, place
cardboard protecting ring furnished with seal over lapped
face of seat and press into place with a piece of tubing
having end cut square. The tubing should be slightly larger
than diameter of the shaft. Remove cardboard after seat is
rmly in place.
3. Position casing cover (11) on the motor and secure
with capscrews (83). Tighten screws evenly to
assure proper alignment.
4. Wipe the sealing faces of the seat and seal washer
clean. Oil these surfaces with a clean light oil. Lightly
oil the shaft sleeve (14). Slide the entire mechanical
seal rotating assembly onto the sleeve.
5. Press wearing rings (25) and (27) into the casing
(1) and casing cover (11). Rings should not be
hammered into place. Use a press, or clamp the
parts in a bench wise, using wooden blocks to
protect the rings. It may be necessary to pin or
dowel the rings after assembly if the insert or casing
has had rings replaced before, since each
reassembly can stretch or tear metal and thereby
loosen the ts.
6. Assemble key (32) and impeller (2) to motor shaft.
Secure impeller (2) to motor shaft. Secure impeller
(2) with washer (28) and impeller screw (26).
7. Install all drain plugs in the casing. Position the
gasket (73) and casing (1) against the casing cover
(11) and secure with screws (82).
8. Repalce all ushing or drain lines. Connect
discharge piping and suction piping if required,
making sure to install gaskets on the anged
connections. Connect electric power to motor.
STARTING PUMP AFTER REASSEMBLY
Do not pump until all air and vapor has been bled. Make
sure that there is liquid in the pump to provide the neces-
sary lubrication, (Without the uid around it, the seal may
be ruined in a few seconds of operation). It is possible that
the mechanical seal may drip during the rst few minutes
to one hour of operation.
Figure 2 - MECHANICAL SEAL

5
PUMP TROUBLES AND THEIR CAUSES
FAILURE TO PUMP
1. Pump not properly primed
2. Wrong direction of rotation
3. speed too low
4. Total head too high
PUMP LOSES PRIMING
1. Air leaks in suction line
2. Excessive amount of air in water
3. Excessive suction lift and pump operating
too near shut-o󰀨 point
REDUCED CAPACITY AND/OR HEAD
1. Air pockets or leaks in suction line.
2. Clogged impeller
3. Foot-valve strainer too small or clogged
4. Insu󰀩cient submergence for suction pipe.
5. Excessive suction lift, much over 15Ft.
6. Insu󰀩cient positive suction head
(for hot water).
7. Total head more than that for which pump is
intended.
8. Excessively worn impeller and wearing rings
OVERLOADED DRIVING UNIT
1. Head much lower than that for which pump
is designed
2. Speed too high. Higher than that
contemplated
3. Liquid handled of high specic gravity and
greater viscosity than that of water
MECHANICAL TROUBLES AND NOISE
1. Misalignment
2. Excessive suction lift or vapor binding
(hot water).
3. Bent shaft and/or damaged bearings
4. Suction and discharge piping not properly
supported and anchored

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.