3131
Manual Index
DEMING
®
INSTALLATION, OPERATION & MAINTENANCE MANUAL
Frame Mounted End Suction Centrifugal Pumps
Series: 3031 / 3131
IMPORTANT!
A Crane Co. Company
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 notification.
420 Third Street
Piqua, Ohio 45356
Phone: (937) 778-8947
Fax: (937) 773-7157
www.cranepumps.com
83 West Drive, Bramton
Ontario, Canada L6T 2J6
Phone: (905) 457-6223
Fax: (905) 457-2650
Form No. 119986-Rev. D
CONTENTS
SAFETY FIRST ................................................................................3
A.
GENERAL INFORMATION...............................................................4
Receiving
Storage
Service Centers
B.
INSTALLATION ................................................................................4 - 6
Foundation
Mounting
Alignment
Grouting
Piping
Wiring
Rotation
C.
OPERATION.....................................................................................6 - 7
Priming
Starting
Adjustment
D.
MAINTENANCE ...............................................................................7
Lubrication
E.
REPAIR ............................................................................................8 - 10
Impeller Adjustment
Disassembly
Disassembly of Frame
Single Seal Pumps Only
Double Seal Pumps Only
Reassembly
F.
LOCATING TROUBLE .....................................................................10 - 11
CROSS-SECTIONS & PARTS LIST.................................................12 - 14
WARRANTY & RETURNED GOODS ..............................................15
Other brand and product names are trademarks or registered trademarks of their respective holders.
Deming® is a registered trademark of Crane Pumps & Systems, Inc.
1996, 8/06
2
Alteration Rights Reserved
SAFETY FIRST!
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:
WARNING ! Do not wear loose clothing that may
become entangled in moving parts.
WARNING ! Keep clear of suction and discharge
openings. DO NOT insert fingers in pump with power
connected.
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.
Always wear eye protection when working on pumps.
CAUTION! Warns about hazards that can or will cause minor
personal injury or property damage if ignored. Used with symbols
below.
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.
WARNING! Warns about hazards that can or will cause serious
personal injury, death, or major property damage if ignored. Used
with symbols below.
Hazardous fluids can
cause fire or explosions, burnes or death
could result.
Biohazard can cause
serious personal injury.
Rotating machinery
Amputation or severe
laceration can result.
Extremely hot - Severe
burnes can occur on contact.
DO NOT exceed manufacturers recommendation for
maximum performance, as this could cause the motor
to overheat.
Hazardous fluids can Hazardous pressure, eruptions or explosions could cause personal
injury or property damage.
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.
Hazardous voltage can
shock, burn or cause death.
Only qualified personnel should install, operate and repair
pump. Any wiring of pumps should be performed by a qualified
electrician.
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.
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.
Bronze/brass and bronze/brass fitted 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.
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.
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.
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
(flammable, caustic, etc.) unless the pump is specifically
designed and designated to handle them.
3
A - GENERAL INFORMATION
B - INSTALLATION
TO THE PURCHASER:
Congratulations! You are the owner of one of the finest
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.
1. FOUNDATION
The pump foundation should be sufficiently 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
final positioning of the bolts. See Figure 1.
Check local codes and requirements before installation.
Servicing should be performed by knowledgeable pump
service contractors or authorized service stations.
2. MOUNTING:
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 flexible 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.
RECEIVING:
Upon receiving the pump, it should be inspected for
damage or shortages. If damage has occurred, file 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 efficient
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.
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.
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 flanges 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.
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 Deming Service Center,
check your Deming representative or Crane Pumps &
Systems Service Department in Piqua, Ohio, telephone
(937) 778-8947 or Crane Pumps & Systems Canada, Inc.,
Bramton, Ontario, (905) 457-6223.
Figure 2. Adjusting Wedges for Mounting
Figure 1. Foundation Bolt
Location and Anchorage
4
NOTE: A flexible coupling should not be used to
compensate for misalignment of the pump and driver
shafts. The purpose of the flexible 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.
ANGULAR
MISALIGNMENT
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 flexible 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
MISALIGNMENT
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
final 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 firmly.
PERFECT
ALIGMENT
WARNING - Coupling guards must be used to
avoid serious injury to operating personnel.
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 filled with a good
quality, non-shrinking grout. The usual mixture for grouting
is one part Portland cement and two parts sand with
sufficient water to flow 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.
Figure 3
5
C - OPERATION
5. PIPING
The pump suction and discharge connections are not
intended to indicate the required suction and discharge
pipe sizes. The pipe diameter must be selected according
to the requirements of the pumping system and
recommended friction losses for the liquid being pumped.
1. PRIMING
CAUTION: Before starting the pump, the casing and
suction line must be filled with liquid, and air-vented
through the vent pipe plugs. The pump must not be run
until it is completely filled with liquid, because of danger of
injuring some of the parts of the pump which depend upon
liquid for lubrication. The discharge gate vale should be
closed during priming. Be sure the mechanical seal and
power frame are supplied with the proper lubrication.
See LUBRICATION.
Usually, it is advisable to increase the size of both the
suction and discharge pipes at the pump nozzles to have
minimum acceptable friction loss, suction pipe should
never be smaller in diameter than the pump suction
nozzle. When suction pipe is of larger diameter than the
pump suction nozzle, an eccentric reducer is required to
eliminate possible air or vapor pockets at the pump suction
inlet.
PRIMING BY SUCTION PRESSURE
When operating with suction pressure (flooded suction),
remove the pipe plug at the top of the casing and when
pump is filled with liquid, replace plug.
Both suction and discharge pipes must be supported
independently near the pump, so that when piping is
connected to the pump, no strain will be transmitted to the
pump. Piping should be arranged with as few bends as
possible, and, preferably, with long radius elbow whenever
possible.
PRIMlNG WITH FOOT VALVE AND STRAINER
A foot valve and strainer may be installed on the lower end of
the suction pipe to keep pump filled with liquid. Incorporate
filler pipe in discharge pipe between pump and check valve.
Remove pipe plug at top of casing, then fill suction pipe and
pump with liquid. When pump is full of liquid, replace plug
and close filler pipe.
SUCTION PIPING
A horizontal suction line must have a gradual rise to the
pump. Any high point in the suction pipe can become filled
with air and prevent proper operation of the pump and may
cause loss of prime. The pipe and fittings must be free of
all air leaks.
CAUTION: When a foot valve and strainer are installed on
the suction pipe, a spring loaded type check valve MUST be
installed next to the pump in the discharge piping to prevent
pump rupture from water hammer shock.
Any valves or fittings should located at a distance equal
to 5 to 10 times the diameter of the suction pipe from the
pump suction nozzle. If an elbow must be installed at the
pump suction, it should be installed in a vertical position
to reduce unequal flow into the pump, which may cause
cavitation in the pump.
Priming by means of primer pump or ejector, attached to
the pump, will also remove air from suction pipe and pump
casing. When pump is filled with liquid, start motor and
slowly open discharge gate valve.
NOTE: A gate valve in the suction piping should not be
used as a throttling device, as this may cause the liquid to
overheat during operation.
2. STARTING THE PUMP
On initial start up, the gate valve in the discharge piping
should be closed and slowly opened after pump is up to
speed and pressure developed. DO NOT operate pump for
any appreciable length of time against a closed discharge
valve, as this may heat trapped liquid excessively and
damage the pump or seal.
6. WIRING
For electric motor drives, connect power supply to conform
with national and local codes. Line voltage and wire capacity
must match the ratings stamped on the motor nameplate.
7. ROTATION
Before starting the pump, check the required direction
of rotation of the pump. The proper direction is indicated
by a direction arrow on the pump casing. Separate the
coupling halves, then start motor to see that it rotates in
the direction required by the pump. If it does not, reverse
any two main leads of the 3-phase wiring to the motor.
The coupling halves can be reconnected and the pump
primed for starting.
The following important items should be checked as pump
is started and placed in operation.
a. Pump and driver securely bolted
b. Coupling properly aligned
c. Piping complete
d. Correct pump rotation
e. Pump shaft turns freely
f. Discharge valve closed
g. Suction valve open (if used)
h. Coupling Guard installed
i. Pump fully primed
j. Pump and driver properly lubricated
Only after these items have been checked should the
pump be started.
6
3. PUMP ADJUSTMENT
Open discharge valve as soon as operating speed has
been reached. As soon as the pump and driver have
reached the normal operating temperature, the unit should
be shut down for final coupling alignment. If correction
is necessary, it may be accomplished by the addition or
removal of shims from under the motor mounting feet.
PACKING BOX - Packing must be continuously lubricated.
Packed pumps are normally furnished less an external
recirculation line. When operating with suction lift and
clean liquid, recirculation from the pump discharge to the
packing box (or suitable grease) may be used. When
lubrication is supplied from an outside source, it should be
cool, clear water, light lithium base grease or a compatible
lubricating fluid.
D. MAINTENANCE
PACKING BOX CARE - Before installing new rings of
packing, clean the packing box and inspect parts for wear.
If the shaft sleeve is worn, replace it; new packing will not
do an adequate job on a worn sleeve. Die molded packing
rings are preferable. Insert two rings. Twist the rings
sideways when installing; DO NOT pull the rings straight
out over the shaft. Stagger the joints to minimize leakage.
1. LUBRICATION
Model 3031/3131 units are available with either grease or
oil lubricated bearings.
The pump and its component parts that require lubrication
have been lubricated at the factory. Subsequent lubrication
depends on operating conditions. Periodic inspection of
bearing lubrication is necessary and additional grease
should be added as required.
Tamp each ring in place and then slip the lantern ring into
the packing box behind them. Add three more rings behind
the lantern ring. Replace the gland and bolts, rotate the
shaft, and tighten gland securely. Be sure the lantern ring
is positioned to receive lubrication through the orifice in the
housing. Tighten nuts securely to seat the packing, rotate
the shaft several turns, and then loosen the nuts to “fingertightness” for starting.
CAUTION: DO NOT over grease bearings
The following lubricants are recommended:
Grease lubricated ball bearings: Shell Dolium R, Chevron
SRI #2 or equivalent -40° thru 250°F.
IMPORTANT - Liquid being pumped should drip slowly
but constantly through the packing gland. This will
prevent overheating, high power consumption, and
shaft sleeve damage.
Oil lubricated pump are shipped WITHOUT oil in the frame.
Install the Trico Opto-Matic® oiler on the frame with its
moveable oiler body 1/4” higher than its lowest level.
Fill the plastic bottle with oil (0°F - 150°F, #10 Wt. Nondetergent, 150°F - 250°F, #20 Wt. Non-detergent) and
screw it into the lower reservoir. Several fillings of the bottle
will be required before the frame stops taking oil. Never fill
the frame through the lower oil reservoir. For normal 8 hour
duty change the oil approximately every 6 months, more or
less frequently depending on the operating conditions.
If packing replacement becomes frequent:
a. Check motor bearing for excessive wear causing
shaft run-out.
b. Check packing for proper grade. Also, check
whether special packing issued: see pump data
card.
c. Check shaft sleeve for excessive wear or scoring.
d. Check for crystallization of solution and for
embedded abrasives in the packing. Method of
packing lubrication may not be satisfactory.
e. Check recirculating line, if used, as well as
relevant fittings, for partial or full blockage.
Driver: See Manufacturers recommendations for proper
lubrication.
WARNING! NEVER try to adjust or work on the
pump while it is running. Always stop the unit
completely before attempting any adjustment.
INITIAL ADJUSTMENTS
PUMP WITH MECHANICAL SEALS
After the pump has been started, packing box glands
should be tightened to prevent excessive loss of liquid.
Mechanical seals are factory-adjusted at the time the pump
is assembled and, normally, need no further adjustment
in the field. The only prerequisite to operating a pump
equipped with a mechanical seal is to make certain the
seal chamber is filled with a compatible liquid before
starting the pump.
In cases where packed pumps are operating with a suction
lift over 15 feet, the packing should be lubricated through
the stuffing box tap from an external source. See “Packing
Box” below.
Packing should not be too tight, as this will result in burning
the packing and scoring of the shaft sleeve. The best
gland adjustment will allow liquid to drip slowly from the
packing box gland. Normal drip rate is from 40 - 60 drips
per minute. This will permit proper lubrication of the shaft
and dissipate generated heat. The gland must NEVER be
tightened to the point where leakage through the stuffing
box is completely stopped.
SINGLE SEAL - Pumps with single seals are normally
furnished with an external recirculation line. A portion of the
liquid being pumped is recirculeted from the casing through
the seal chamber to serve as a lubricant and coolant. An
alternate method is to supply a cool, compatible lubricating
liquid from an outside source, to the seal chamber at a
pressure 15 to 25 psi higher than suction pressure.
7
b. Remove hex nuts (210) and remove split gland (17)
when pump is fitted with packing (13). If pump has
mechanical shaft seal (89), remove hex nuts (210)
and carefully slide seal gland (251) with seal seat
away from packing box cover (11).
DOUBLE SEAL - On double seal applications, the seal
chamber must be filled with lubricant or clear, compatible
lubricating liquid under pressure. The liquid may be from
an outside source or may be from the pump discharge
passing through a filter and/or heat exchanger when
necessary. Pressure on the box must be 15 to 25 psi
higher than suction pressure. The liquid must circulate
through the outlet and a restriction must be placed in the
outlet to assure pressure on the seal chamber.
c. Remove the packing box cover from adapter (071).
Packing (013) and lantern ring (029) may now be
removed.
d. If pump includes single mechanical shaft seal, scribe
a mark at the seal retainer or spring retainer on the
shaft sleeve or shaft to aid in reassembly. Remove
seal gland gasket.
E - REPAIR
WARNING - If pumping any fluid that
could cause bodily injury (hot water,
caustic, etc.), always use eye protection
and wear protective clothing over all
exposed body areas.
SINGLE SEAL PUMPS ONLY:
e. Loosen set screws (K) in spring retainer (C) or seal
collar. Remove seal from sleeve.
DOUBLE SEAL PUMPS ONLY:
f. Remove rotating portion of seal from the sleeve, and
stationary sealt (A) and gasket (259) from the gland
and packing box.
REMOVE AND LOCK-OUT POWER TO THE
DRIVER WHILE PERFORMING THESE TASKS
Be sure that no one can accidentally restore power while
the pump is being serviced.
1. IMPELER ADJUSTMENT - To adjust the impeller,
loosen the capscrew (337) and rotate the clip (204)
clockwise until it disengages the bearing housing
lugs. Turn the bearing housing (033) clockwise until
the impeller just rubs on the casing. Turn the bearing
housing counter-clockwise two notches for 3031 units
and 1 revolution for 3131 units. Replace the clip and
tighten capscrew.
2. DISASSEMBLY - These instructions apply to the series
of pumps in general and may vary slightly on some
units. If complete dissembly is not necessary, use only
those steps which apply
Due to the “back pull out” construction of these pumps, the
frame and rotating assembly may be removed from the
unit without removing the casing from the piping, or the
driver from the base plate providing a spacer coupling is
employed.
a. Close valves in discharge and suction piping
b. Remove coupling guard and shaft coupling per
manufacturer’s instructions
c. Drain casing by removing drain plugs (216) in top
and bottom of casing (001).
d. Remove cap screws from frame foot and casing cap
screws (212) and (277)
e. Remove frame assembly from casing.
3. DISASSEMBLY OF FRAME ASSEMBLY
a. Remove cap screw (026), washer (270) and impeller
(002) from the end of shaft.
8
CAUTION - Use extreme care to prevent
the shaft from hitting the seal stationary
member. Damage can result
NOTE: For identification of seal pump parts. see table
below:
PARTS IDENTIFICATION LISTING FOR SEAL TYPES
ILLUSTRATED IN FIGURES 1, 2, & 3
A
Seal (Insert)
J
A. Press wear rings (025) & (027) into casing and
packing box cover. Press (008) impeller wear rings
onto impeller is supplied.
Shaft Packing
B
Gasket (Outboard)
K
Set Screw
C
Washer (seal ring)
P
Throat Bushing (Opt)
D
Shaft Packing
R
O-ring
E
Spring Retainer
S
Holding Clips*
(Types 9T, 9BT)
F
Spring
251
Seal Gland
G
Disc
259
Gasket (inboard)
H
Snap Ring
263
Pipe Plug
B. With seal gland face up press seal seat gently into
seal cavity. Use protective material to avoid damage
to seal lapped surface.
C. Slide the slinger (40) onto the shaft.
STEPS D - H FOR PACKED PUMPS ONLY
D. Insert the shaft sleeve into the bore of the packing
box with the keyway towards the impeller. Insert
packing (13) and lantern ring (29) as described
under “PACKING BOX CARE” .
(*) Holding clips must be removed after seal is assembled
on shaft; see instructions furnished with seal.
g. Press seal stationary member out os seal gland.
E. Place the entire packing box assembly and shaft
sleeve over the shaft and position the packing box
cover on the adapter. Line up the keyway in the
sleeve with the keyslot in the shaft and replace the
impeller key (32).
h. Remove wear rings (025) & (027) from casing and
packing box cover. Remove (008) impeller wear
rings if supplied.
i.
Remove pump half coupling, key (046), and rotate
the clip (204) out of the bearing housing notch.
F. Replace the cap screws and draw down snug,
tightening the packing box cover against the
adapter (071).
j. Rotate the shaft and bearings out of the frame
counterclockwise. Remove the snap ring (202), nut
(022), and washer (069).
G. Place the sleeve gasket (038) over the end of the
shaft. Place the impeller (002) over the end of the
shaft with the keyway over the key. The impeller
should be tapped into position with a babbit or
rawhide hammer. Replace the impeller gasket (30),
impeller washer (270), o-ring (272) and impeller
screw (26), and tighten.
k. Using a bearing puller or arbor press, remove
bearings (016) and (018) from the shaft (006)
l. Gently press out lip seals (047) and (049), and
remove o-ring (232)
m. Clean and carefully inspect and replace as
necessary any worn or damaged shafts, sleeves,
bearings, lip seals, or gaskets. Replace mechanical
shaft seal worn faces, hardened elastomers or
springs with weak tension.
H. Locate split gland (017) and tighten hex nuts (210).
Proceed to STEP AA.
STEPS I - K FOR SINGLE SEAL PUMPS ONLY
I. Before installing new or used seals, inspect and
clean all parts. Remove all burrs, nicks, etc., from
shaft sleeve.
4. REASSEMBLY
a. Press lip seals (047) and (049) into the frame and
bearing housing, and replace o-ring (232)
J. Lightly oil the inside of the spring retainer or holder
(E) and the outside of the sleeve. Slide the rotating
portion of the seal over the sleeve.
b. Press bearings onto the shaft using an arbor press
to firmly seat the inner race of the bearing against
the shaft shoulders.
K. Line up the spring retainer to the premarked position
(see Step D on page 6). Tighten the set screws.
c. Place washer (069) and bearing locknut (022) onto
the shaft. Slide bearing housing (033) over bearing
(018) and attach with snap ring (202)
L. Replace the seal gland gaskets (B) and (259). Oil
the outer surface of the seal seat (A) and press into
the seal gland (251)
d. Slide bearing and shaft assembly through the rear of
the frame, threading bearing housing clockwise until
the bottom of the lugs are flush with the frame
M. Carefully slide the seal gland and the gland gasket
(259) over the pump shaft.
9
N. Place the shaft sleeve on the shaft and line up the
keyway in the sleeve with the keyslot in the shaft.
Replace the impeller key (32).
STEPS AA - FF FOR PACKED OR SEAL PUMPS:
AA. Pump assembly is now ready to reinstall onto casing.
O. If supplied, replace the throat bushing in the packing
box.
BB. Place gasket (073) on clean surface of packing
box cover.
P. Place the packing box cover over the shaft and seal
the assembly. Replace cap screws and draw down
snug to tighten packing box cover to adapter (071).
CC. Using care, insert motor/adapter/impeller assembly
into cleaned casing. Insert capscrews (212) and
hand tighten to control alignment as pilot on
adapter enters casing. Continue tightening
capscrews until gasket is firmly seated.
Q. Place the sleeve gasket (038) over the end of the
shaft. Place the impeller (002) over the end of the
shaft also, with the keyway over the key. Tap
impeller into position with a babbit or rawhide
hammer. Replace the impeller gasket (030), impeller
washer (270), o-ring (272) and impeller screw (26)
and tighten.
DD. Tighten capscrews (212) evenly and alternately
across capscrew circle diameter until all are firmly
tightened.
EE. Reinstall drain plugs, replace bypass line (if used).
Install motor adapter and frame foot mounting
bolts.
R. Pull the seal gland into place and tighten securely.
Proceed to Step AA.
STEPS S - Z FOR DOUBLE SEAL PUMPS ONLY
NOTE: Model number, pump serial number and part item
number are always required to secure correct replacement
parts. Refer to the pump serial plate and illustrations in this
booklet.
S. Before installing new or used seals, inspect and
clean all parts, remove all burs, nicks etc., from shaft
sleeve.
T. Oil outer surface of seal seats (A). Press one into
the seal gland (251) and one into the packing box
cover.
FF. Adjust the impeller as indicated on page 7.
GG.Align pump and motor according to Section 4.
Reassemble flexible shaft coupling.
F - LOCATING TROUBLE
U. Slide the seal gland (251) and gland gasket (259)
over the motor shaft.
1. No Liquid Delivered
a. Pump not primed - See Priming
b. Speed too low - Check motor speed and
nameplate
c. Discharge head too high
d. Impeller completely plugged
e. Wrong direction of rotation - Check wiring
f. NPSHA may be too low, pump cavitates - Check
total NPSHR
g. Suction or discharge valves closed
V. Place the shaft sleeve on the shaft, lining up the
keyway in the sleeve with the key slot in the shaft.
Replace the impeller key (032).
W. Slide the rotating portion of the seal over the shaft
sleeve.
X. Slide the packing box cover over the seal assembly
and sleeve. Replace the cap screws and draw
down snug to tighten packing box cover to adapter
(071).
2. Not Enough Liquid Delivered
a. Air leaks in suction piping
b. Speed to low - Check motor speed
c. Discharge head higher than anticipated.
Check discharge valve/system requirements
d. Impeller partially plugged
e. Wrong direction of rotation
f. NPSHA may be too low, pump cavitates
g. Air entrainment
h. Flow meter improperly calibrated
Y. Place the sleeve gasket (038) over the end of the
shaft. Place the impeller (002) over the end of the
shaft also, with the keyway over the key. Tap
impeller into position with a babbit or rawhide
hammer. Replace the impeller gasket (030),
impeller washer (270), o-ring (272), and impeller
screw (26) and tighten.
Z. Pull the seal gland into place and tighten securely.
Proceed to STEP AA.
3. Not Enough Pressure
a. Speed too low - Check motor speed
b. Air or gas in liquid
c. Incorrect impeller diameter - Check system
requirements
10
d. Obstruction in pump or piping
e. Specific gravity lower than specified - May
require larger pump impeller
f. Defective pressure gauge
4. Pump Works For A While Then Quits
a. Obstruction in pump or piping
b. Air or gas in liquid
c. Incomplete priming - See Priming
d. Air leak through seal when operating with high
vacuum or high suction lift.
5. Pump Takes Too Much Power
a. Speed too high - Compare Pump and motor
nameplates
b. Head lower than rating - pumps too much liquid.
Check system requirements
c. Liquid specific gravity or viscosity greater than
expected. Requires large motor.
d. Pump and driver misalignment - Check casing for
pipe strain. Support piping and realign unit
e. Wrong direction of rotation
f. Electrical defects - Check power supply and
motor
g. Impeller oversized for system requirements
6. Excessive Pump Vibration
a. Cavitation at pump suction due to insufficient
NPSHA. Alter installation to reduce NPSHR
b. Impeller out of balance - Check mechanical
(static) balance
c. Pump and motor misalignment
d. Obstruction in pump impeller
e. Pump shaft bent
f. Worn pump bearings
g. Impeller imbalance due to wear or corrosion
h. Motor imbalance
i. Base plate loose on foundation or insufficient
strength to support the load
7. Pump and/or Motor Noise
a. Pump and motor misalignment
b. Pump cavitation
c. Base plate loose or not grouted
d. Pump bearings worn
e. Motor bearings worn or fan rubs housing
11
MODEL 3031
ITEM No.
001
002
006
008
011
013
*014
*016
017
*018
019
022
025
*026
027
029
*030
032
033
*038
040
046
*047
049
069
DESCRIPTION
Casing
Impeller
Shaft
Ring, Impeller (Optional)
Packing Box Cover
Packing
Shaft Sleeve
Bearing (inboard)
Gland, Split
Bearing (outboard)
Frame
Nut, Bearing Lock
Wear ring, Casing
Impeller capscrew
Ring, Cover
Lantern Ring
Impeller washer gasket
Impeller Key
Housing, Bearing
Sleeve gasket
Deflector
Coupling key
Seal, Lip I.B.
Seal, Lip O.B.
Lockwasher, Bearing
ITEM No.
071
*073
202
203
204
207
208
209
210
212
214
216
217
219
*232
236
242
243
*270
*272
274
277
337
DESCRIPTION
Adapter
Casing gasket
Snap ring (Frame)
Name Plate (Not shown)
Clip, Bearing Housing
Grease Fitting
Pipe Plug (Not shown)
Stud, Gland
Nut
Cap screw
Drive screw (Not shown)
Pipe Plug (Casing)
Cap screw (Not shown)
Cap screw
O-ring
Pipe Plug, Frame (Not shown)
Grease Fitting (Not shown)
Grease Fitting
Impeller Washer
O-ring, Impeller Washer
Frame Foot
Cap screw
Cap Screw
(*) Recommended Spare Parts
12
MODEL 3131
ITEM No.
001
002
006
008
011
013
*014
*016
017
*018
019
022
025
*026
027
029
*030
032
033
*038
040
046
*047
*049
069
071
*073
089
202
DESCRIPTION
Casing
Impeller
Shaft
Ring, Impeller (Optional)
Packing Box Cover
Packing
Shaft Sleeve
Bearing (inboard)
Gland, Split
Bearing (outboard)
Frame
Nut, Bearing Lock
Wear ring, Casing
Impeller capscrew
Ring, Cover
Lantern Ring
Impeller washer gasket
Impeller Key
Housing, Bearing
Sleeve gasket
Deflector
Coupling key
Seal, Lip I.B.
Seal, Lip O.B.
Lockwasher, Bearing
Adapter
Casing gasket
Seal (Not shown)
Snap ring (Frame)
ITEM No.
203
204
206
207
208
209
210
212
214
216
217
219
230
*232
236
242
243
251
259
*270
*272
273
274
277
337
701
709
714
DESCRIPTION
Name Plate (Not shown)
Clip, Bearing Housing
Clip, Gland (Not shown)
Grease Fitting
Pipe Plug (Not shown)
Stud, Gland
Nut
Cap screw
Drive screw (Not shown)
Pipe Plug (Casing)
Cap screw (Not shown)
Cap screw
Spring Holder (Not shown)
O-ring, Adjusting But
Pipe Plug, Frame (Not shown)
Grease Fitting (Not shown)
Grease Fitting
Seal Gland (Not shown)
Gland Gasket (Not shown)
Impeller Washer
O-ring, Impeller Washer
Foot (Adapter) (2B Frame Only)
Frame Foot
Cap screw
Cap Screw
Set screw (Not shown)
Set screw (Not shown)
Pipe Plug, Frame (Not shown)
(*) Recommended Spare Parts
13
MODEL 3032
ITEM No.
001
002
006
011
*014
*016
*018
019
022
025
*026
027
*030
032
033
*038
046
*047
049
069
071
*073
089
MODEL 3132
DESCRIPTION
Casing
Impeller
Shaft
Packing Box Cover
Shaft Sleeve
Bearing (inboard)
Bearing (outboard)
Frame
Nut, Bearing Lock
Wear ring, Casing
Impeller capscrew
Ring, Cover
Impeller washer gasket
Impeller Key
Housing, Bearing
Sleeve gasket
Coupling key
Seal, Lip I.B.
Seal, Lip O.B.
Lockwasher, Bearing
Adapter
Casing gasket
Mechanical Seal
ITEM No.
202
203
204
207
208
209
210
212
214
216
217
219
*232
236
242
243
251
*259
*270
*272
274
277
337
(*) Recommended Spare Parts
14
DESCRIPTION
Snap ring (Frame)
Name Plate (Not shown)
Clip, Bearing Housing
Grease Fitting
Pipe Plug
Stud, Gland
Nut
Cap screw
Drive screw (not shown)
Pipe Plug (Casing)
Cap screw (not shown)
Cap screw
O-ring
Pipe Plug, Frame (not shown)
Grease Fitting
Grease Fitting
Seal Gland
Gland Gasket
Impeller Washer
O-ring, Impeller Washer
Frame Foot
Cap screw
Cap Screw
Limited 24 Month Warranty
Crane Pumps & Systems warrants that products of our manufacture will be free of defects in material and workmanship
under normal use and service for twenty-four (24) months after manufacture date, when installed and maintained
in accordance with our instructions.This warranty gives you specific legal rights, and there may also be other rights
which vary from state to state. In the event the product is covered by the Federal Consumer Product Warranties Law
(1) the duration of any implied warranties associated with the product by virtue of said law is limited to the same
duration as stated herein, (2) this warranty is a LIMITED WARRANTY, and (3) no claims of any nature whatsoever
shall be made against us, until the ultimate consumer, his successor, or assigns, notifies us in writing of the defect,
and delivers the product and/or defective part(s) freight prepaid to our factory or nearest authorized service station.
Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply.
THE SOLE AND EXCLUSIVE REMEDY FOR BREACH OF ANY AND ALL WARRANTIES WITH RESPECT TO ANY
PRODUCT SHALL BE TO REPLACE OR REPAIR AT OUR ELECTION, F.O.B. POINT OF MANUFACTURE OR
AUTHORIZED REPAIR STATION, SUCH PRODUCTS AND/OR PARTS AS PROVEN DEFECTIVE. THERE SHALL BE
NO FURTHER LIABILITY, WHETHER BASED ON WARRANTY, NEGLIGENCE OR OTHERWISE. Unless expressly
stated otherwise, guarantees in the nature of performance specifications furnished in addition to the foregoing material
and workmanship warranties on a product manufactured by us, if any, are subject to laboratory tests corrected for
field performance. Any additional guarantees, in the nature of performance specifications must be in writing and such
writing must be signed by our authorized representative. Due to inaccuracies in field testing if a conflict arises between
the results of field testing conducted by or for user, and laboratory tests corrected for field performance, the latter
shall control. RECOMMENDATIONS FOR SPECIAL APPLICATIONS OR THOSE RESULTING FROM SYSTEMS
ANALYSES AND EVALUATIONS WE CONDUCT WILL BE BASED ON OUR BEST AVAILABLE EXPERIENCE AND
PUBLISHED INDUSTRY INFORMATION. SUCH RECOMMENDATIONS DO NOT CONSTITUTE A WARRANTY OF
SATISFACTORY PERFORMANCE AND NO SUCH WARRANTY IS GIVEN.
This warranty shall not apply when damage is caused by (a) improper installation, (b) improper voltage (c) lightning
(d) excessive sand or other abrasive material (e) scale or corrosion build-up due to excessive chemical content. Any
modification of the original equipment will also void the warranty. We will not be responsible for loss, damage or labor
cost due to interruption of service caused by defective parts. Neither will we accept charges incurred by others without
our prior written approval.
This warranty is void if our inspection reveals the product was used in a manner inconsistent with normal industry practice
and\or our specific recommendations. The purchaser is responsible for communication of all necessary information
regarding the application and use of the product. UNDER NO CIRCUMSTANCES WILL WE BE RESPONSIBLE FOR
ANY OTHER DIRECT OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO TRAVEL EXPENSES,
RENTED EQUIPMENT, OUTSIDE CONTRACTOR FEES, UNAUTHORIZED REPAIR SHOP EXPENSES, LOST
PROFITS, LOST INCOME, LABOR CHARGES, DELAYS IN PRODUCTION, IDLE PRODUCTION, WHICH DAMAGES
ARE CAUSED BY ANY DEFECTS IN MATERIAL AND\OR WORKMANSHIP AND\OR DAMAGE OR DELAYS IN
SHIPMENT. THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY OTHER EXPRESS OR IMPLIED WARRANTY,
INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
No rights extended under this warranty shall be assigned to any other person, whether by operation of law or otherwise,
without our prior written approval.
A Crane Co. Company
420 Third Street
Piqua, Ohio 45356
Phone: (937) 778-8947
Fax: (937) 773-7157
www.cranepumps.com
83 West Drive, Brampton
Ontario, Canada L6T 2J6
Phone: (905) 457-6223
Fax: (905) 457-2650
IMPORTANT!
WARRANTY REGISTRATION
Your product is covered by the enclosed Warranty.
To complete the Warranty Registration Form go to:
http://www.cranepumps.com/ProductRegistration/
If you have a claim under the provision 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.
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