Fusion SCOT MOTORPUMP C56 User manual

SCOT MOTORPUMP™
C56 & JM FRAME
STRAIGHT CENTRIFUGAL
1.50” & 1.75” TYPE 21 MECHANICAL SEALS
zINSTALLATION zOPERATION zMAINTENANCE
INCLUDES MECHANICAL SEAL REPLACEMENT
Check pump for shortage and damage immediately upon
arrival. Note damage or shortage on freight bill (bill of
lading); immediately file claim with carrier.
EXTERIOR — Pay particular attention to conduit box,
external hardware and accessories. Touch up abrasions
or scratches with approved paint.
INTERNAL — If extensive or serious external damage
is noted, if impeller is damaged (look in ports), or if shaft
binds or sticks, disassemble as required to permit
internal inspection.
Handle with care. Dropping or jarring can seriously
damage motor bearings or break pump parts. Lift with
device having capacity for pump weight, and use lifting
hooks or eye bolts (if provided) or rig double sling around
motor frame and pump casing. Do not use sling through
pump motor adapter nor around suction and discharge
flanges.
Location — Pump location should provide the
following:
1. Install as close to suction supply as possible.
2. Shortest and most direct suction pipe practical.
Suction lift must not exceed limit for pump. NPSH
available must equal or exceed pump requirement.
3. Suction port below pumping level to provide priming.
4. Room for inspection and maintenance.
5. Correct power supply to motor; all wiring should
meet National Electrical and Local Codes and
Regulations.
6. If outdoors, protection from the elements, freezing
and water damage due to flooding.
Piping — Suction and discharge gauges are useful to
check pump operation and are excellent trouble
indicators. Install gauges in the lines if pump ports do not
have gauge taps. Observe these precautions when
installing piping:
1. Support close to, but independently
of pump.
2. Use the next larger pump size for suction
and discharge.
3. Keep as straight as possible. Avoid bends
and fittings.
4. Remove burrs, sharp edges, ream pipe cuts, and
make joints air-tight.
5. Don’t spring pipe to make connections.
Strain must not be transmitted to pump.
6. Allow for pipe expansion with hot fluids;
expansion joints are not recommended.
Suction — Size and install suction piping to keep
pressure loss at minimum and to provide correct NPSH
by observing the following:
1. The suction pipe should be equal in size or
preferably one size larger than the suction
connection of the pump. If pipe is larger than the
pump suction, an eccentric pipe reducer should be
used at the pump.
2. Pipe should slope upward to pump, even for
horizontal run.
3. Use 45-degree or long-sweep 90-degree elbows.
4. A valve in the suction is necessary only on positive
suction head installation and must not be used to
throttle the pump. The suction valve should be
installed for maintenance purposes only.
Discharge — Pumps permit discharge port location at
any of four positions, 90 degrees apart. Change by
removing cover bolts, rotate casing, and replace bolts.
Do not slice O-ring or tear fibre gasket. Scot does not
recommend bottom vertical discharge due to erratic
pump performance. Ensure there is adequate clearance
with selected position between wall or tank, motor
conduit box, and grease fittings. Casing may extend
beyond base or feet.
1. Short discharge lines may be the same size as the
discharge port. Long runs require a pipe larger
than the discharge port.
2. Long horizontal runs require a grade as even as
possible. Avoid high spots and loops. Trapped air
will throttle flow and may result in erratic pumping.
INSTALLATION
HANDLING
INSPECTION
61.000.252
NOVEMBER 2009
Replaces Jan 2005
• Cedarburg, WI 53012 • P.O. Box 286 • 262-377-7000 • FAX [phone]
SCOT DIVISION OF ARDOX CORP. — HOME OFFICE

3. Install check and gate valves in discharge line;
check valve (if used) between pump and gate valve.
Pre-Start — Before initial start of the pump, check as
follows:
1. The rotation must be checked upon installation.
Close, then break the contacts quickly and observe
the rotation of the exposed portion of the rotating
parts. Rotation must agree with the rotation arrow
on the motor. For all pumps, the standard rotation is
counterclockwise when viewed from the suction
end. Motor wiring is easily changed in the field.
Observe the wiring diagram on the inside of the
terminal box cover, or on the motor nameplate.
2. Check voltage, phase and frequency of line circuit
with motor nameplate.
3. Check suction and discharge piping and
pressure gauges for proper operation.
4. Assure that pump is full of liquid (primed).
Priming — If pump is installed with a positive head on
the suction, prime by opening suction valve and allowing
liquid to enter the casing, at the same time
venting all air out of the top of the casing.
If pump is installed with a suction lift, priming must be
done by other methods, such as foot valves, ejectors, or
by manually filling casing and suction line.
CAUTION - DO NOT RUN PUMP DRY HOPING IT WILL
SELF-PRIME. Serious damage may result if started dry.
Starting — Proceed as follows to start pump:
1. Close drain valves and valve in discharge line.
2. Open fully all valves in the suction line.
3. Prime the pump. If pump does not prime properly,
or loses prime during start-up, shut down and
correct condition before repeating procedure.
4. For pumps moving high temperature liquids,
open warm-up valve to circulate liquid for
preheating. Close valve after pump has
warmed up.
5. Start the motor (pump).
6. When pump is operating at full speed, open
discharge valve slowly.
Running — Periodically inspect pump while running,
but especially after first start and following repair.
1. Check pump and piping for leaks.
Repair immediately.
2. Record pressure gauge readings for future
reference.
3. Record voltage, amperage per phase, and kW
(if an indicating wattmeter is available).
4. Adjust pump output capacity with discharge valve.
DO NOT throttle suction line.
Freezing Protection — Protect pumps shut down
during freezing conditions by one of the following
methods:
1. Drain pump; remove all liquid from the casing.
2. Keep fluid moving in pump and insulate or heat
the pump to prevent freezing. If heated, do not let
temperature go above 100 to 150 degrees F.
3. Fill pump completely with antifreeze solution.
Cleaning — Remove oil , dust, dirt, water, chemicals
from exterior or motor and pump. Keep motor air inlet
and outlet open. Blow out interior of open motors with
clean compressed air at low pressure. Regularly drain
moisture from TEFC motors.
Temperature — Total temperature, not the rise, is the
measure of safe operation for a motor. If temperature by
thermometer exceeds limits for insulation class,
investigate and change operating conditions.
Labeled Motors — It is imperative for repair of a
motor with Underwriters’ Laboratories label that original
clearances be held; that all plugs, screws, other
hardware be fastened securely, and that parts
replacements be exact duplicates or approved equals.
Violation of any of the above invalidates Underwriters’
label.
Lubrication — Pumps should require no
maintenance, other than the motor bearings,
according to the following instructions:
DOUBLE SHIELDED. When double shielded
prelubricated bearings are furnished, no lubrication is
required for the life of the bearings. Inspect bearings
periodically to determine the condition of the grease and
replace the bearings if necessary.
SINGLE SHIELDED W/GREASE FITTING PROVISIONS.
When single shielded bearings are furnished, periodic
inspection, cleaning and relubrication is required. See
motor manufacturer’s specific instructions for
lubrication.
JM FRAME MOTOR
A.) Disassembly:
1. Turn off power.
2. Close suction and discharge valves.
3. Drain pump.
4. Remove bolts holding base to foundation
5. Remove casing bolts.
6. Remove motor and rotating element
from casing, leaving casing and piping
undisturbed.
7. Insert a screwdriver in one of the impeller
waterway passages and back off the
impeller retaining assembly with a socket
wrench, as shown in Figure 1.
MECHANICAL SEAL REPLACEMENT
MAINTENANCE
OPERATION
Figure 1
INSTALLATION, CONT.

8. Remove impeller from shaft, being
careful not to lose the impeller key, spring
and seal retainer. If impeller is difficult to
remove, it may be necessary to use a
bearing puller to pull off impeller.
9. Pry off rotating member of mechanical seal
from sleeve by using two (2) screwdrivers.
(Figure 2)
10. Remove bolts holding adapter to motor and
take off adapter.
11. Place adapter on a flat surface with case
rabbet facing down, and push out stationary
part of mechanical seal.
12. Inspect the shaft sleeve, shaft O-ring and
flinger. If damaged or worn, remove and
replace with a new one.
B.) Reassembly:
CAUTION: The mechanical seal is a precision
product and should be handled accordingly. Use
care when handling the lapped running surfaces
of the mechanical seal to ensure they remain
clean and free of chips or scratches.
1. Clean gasket and flange faces, seal seat
cavity, shaft sleeve, and motor shaft.
2. Position the stationary seat with the silver
dot down (away from you) and the lapped
face (shiny side) facing you. Lubricate the
seal seat cavity of the adapter and the rub-
ber cup or O-ring of seal seat with the lubri-
cating fluid that comes with the
mechanical seal or repair kit. Press the
stationary seat in seal seat cavity of the
adapter squarely and evenly using a arbor
press (if possible) and the cardboard disc
supplied with the seal. Be certain that the
lapped face (shiny side) is facing you.
3. Install the flinger on the motor shaft until it
bottoms on the motor shaft.
4. Slide the shaft O-ring on the motor shaft
until it is tight against the flinger. Make sure
that the shaft O-ring does not get damaged
during this procedure.
5. Position shaft sleeve chamfer towards
motor and slide on motor shaft.
6. With motor preferably in vertical position,
remount the adapter on motor, making sure
the motor shaft does not dislocate or chip
the stationery seat of the seal.
7. Apply the lubricating fluid that comes with
the mechanical seal or repair kit to the shaft
sleeve and the rubber bellows of the rotary
seal. Slide the seal head on the sleeve;
press the rubber drive band on the rotary
head until the lapped face on the head seats
firmly against the lapped face of the
stationary seat. Do not chip or scratch faces
during installation. Take extra care to make
sure the lapped faces are clean. Install seal
spring on seal head and retainer on spring.
8. Place key in key seat. Line up keyway in
impeller with key on motor shaft, and slide
impeller on motor shaft. Be certain that the
key is positioned in the keyway of the motor
and impeller. Slightly compress seal spring
with impeller and hold impeller while
installing impeller retaining assembly in
motor shaft.
9. Insert a screwdriver in a waterway passage
of the impeller holding it against rotation
and tighten the retaining assembly as
discussed in paragraph 7 of disassembly
instructions. The impeller will compress the
seal spring to the proper length assuring the
correct pressure on the lapped surfaces.
10. Remove any burrs caused by screwdriver on
the vane of impeller in waterway passage.
11. Slide motor and rotating element in casing.
Be sure that any damaged O-ring or gasket
is replaced.
12. Tighten casing bolts alternately and evenly.
13. Replace hold-down bolts.
14. Check for free rotation after assembly is
completed.
15. Seal all drain openings using pipe sealant
on threads.
16. Reprime before starting. Do not start until
pump is completely filled with water.
C56 FRAME MOTOR
A.) Disassembly:
1. Refer to “JM FRAME” Disassembly,
Notes 1-11.
12. Inspect the stub shaft. If damaged or worn,
replace with a new one; removal:
A.) Drive pin from stub shaft and remove
pin.
B.) Loosen set screws
C.) Remove stub shaft from motor
shaft.
Assembly:
For motors with drilled hole:
A.) Slide stub shaft on motor shaft. Line
up set screws in stub shaft with motor
keyway, and drilled hole in stub shaft
with drilled hole in motor shaft.
B.) Tighten set screws
C.) Insert #12 drill in pilot hole of stub
and motor shaft. Drill out opposite
side of stub shaft.
D.) Install pin
For motors without a drilled hole in the
motor shaft:
A.) Slide stub shaft on motor shaft. Line
up set screws in stub shaft with
keyway in motor shaft.
B.) Position stub 3 3/32” from Motor C
face. See Figure 1.
C.) Tighten set screws
D.) Insert #12 drill in stub shaft pilot hole
and drill completely through motor shaft
Figure 2
MECHANICAL SEAL REPLACEMENT

and opposite side of stub shaft. See
Figure 2.
E.) Install pin
B.) Reassembly:
CAUTION: The mechanical seal is a precision
product and should be handled accordingly. Use
care when handling the lapped running surfaces
of the mechanical seal to ensure they remain
clean and free of chips or scratches.
1. Clean gasket and flange faces, seal seat
cavity, and stub shaft.
2. Lubricate the seal seat cavity of the adapter
and the rubber cup or O-ring of seal seat
with the lubricating fluid that comes with the
mechanical seal or repair kit. Press the
stationary seat in seal seat cavity of the
adapter squarely and evenly using a arbor
press (if possible) and the cardboard disc
supplied with the seal. Be certain that the
lapped face (shiny side) is facing you.
3. With motor preferably in vertical position,
remount the adapter on motor, making sure
the stub shaft does not dislocate or chip the
stationery seat of the seal.
4. Apply the lubricating fluid that comes with
the mechanical seal or repair kit to the stub
shaft and the rubber bellows of the rotary
seal. Slide the seal head on the stub; press
the rubber drive band on the rotary head
until the lapped face on the head seats
firmly against the lapped face of the
stationary seat. Do not chip or scratch faces
during installation. Take extra care to make
sure the lapped faces are clean. Install seal
spring on seal head and retainer on spring.
5. Place key in key seat. Line up keyway in
impeller with key on stub shaft, and slide
impeller on stub shaft. Be certain that the
key is positioned in the keyway of the stub
and impeller. Slightly compress seal spring
with impeller and hold impeller while
installing impeller retaining assembly in stub
shaft.
6. Insert a screwdriver in a waterway passage
of the impeller holding it against rotation and
tighten the retaining assembly as
discussed in paragraph 7 of disassemby
instructions for JM shaft. The impeller will
compress the seal spring to the proper
length assuring the correct pressure on the
lapped surfaces.
7. Remove any burrs caused by screwdriver on
the vane of impeller in waterway passage.
8. Slide motor and rotating element in casing.
Be sure that any damaged O-ring or gasket
is replaced.
9. Tighten casing bolts alternately and evenly.
10. Replace hold-down bolts.
11. Check for free rotation after assembly is
completed.
12. Seal all drain openings using pipe sealant
on threads.
13. Reprime before starting. Do not start until
pump is completely filled with water.
The approved lubricating fluid for seal
installation is included with the mechanical
seal or repair kit. DO NOT USE OTHER
LUBRICATING LIQUIDS!
WE RECOMMEND STOCKING A SPARE
MECHANICAL SEAL OR REPAIR KIT
TO ELIMINATE DOWN TIME.
PRESSURE AND TEMPERATURE LIMITATION
STANDARD FITTED PUMPS
PUMP
PRESSURE
TEMPERATURE
NO.
STANDARD
OPTIONAL
STANDARD
OPTIONAL
69
75 PSI
N/A
220°F
275°F
51, 61, 74
75 PSI
150 PSI
220°F
275°F
77, 82
75 PSI
N/A
220°F
275°F
11, 12, 13, 16, 27, 60, 125, 126
75 PSI
150 PSI
220°F
275°F
62
165 PSI
165 PSI
220°F
275°F
ALL OTHERS
175 PSI
175 PSI
220°F
275°F
N/A-NOT AVAILABLE
CAUTION
DO NOT ALLOW EITHER THE DISCHARGE PRESSURE OR THE TEMPERATURE OF THE LIQUID TO
EXCEED THE LIMITATIONS LISTED ABOVE.
Figure 1
Figure 2
3 3/32”