BLACKMER SMVP50C Manual

BLACKMER SEAL-LESS PUMPS
960902
INSTRUCTIONS NO. 108-B00
INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS
MODELS: SMVP50C, SMVP100C, SMVP200C, SMVP300C
Section
Effective
Replaces
108
March 2018
July 2015
TABLE OF CONTENTS
Page
PUMP DATA
Technical Data...................................................... 2
Initial Pump Start Up Information.......................... 2
INSTALLATION
Pre-Installation Cleaning ...................................... 3
Location and Piping.............................................. 3
Check Valves........................................................ 3
Pump Mounting .................................................... 3
Motor Installation .................................................. 4
OPERATION
Pre-Start Up Check List........................................ 5
Start Up Procedures............................................. 5
Pump Rotation...................................................... 5
Reverse Rotation.................................................. 5
Flushing the Pump................................................ 5
Pump Relief Valve................................................ 6
Relief Valve Setting and Adjustment .................... 6
MAINTENANCE
Strainers ............................................................... 7
Lubrication............................................................ 7
Vane Replacement............................................... 8
Pump Disassembly............................................... 8
Pump Assembly.................................................... 9
TROUBLE SHOOTING..................................... 11
NOTE: Numbers in parentheses following individual parts
indicate reference numbers on Blackmer Parts Lists 108-
B02 and 108-B03.
NOTE: Blackmer pump manuals & parts lists may be
obtained from Blackmer’s website (www. blackmer. com)
or by contacting Blackmer Customer Service
SAFETY DATA
This is a SAFETY ALERT SYMBOL.
When you see this symbol on the product, or in the
manual, look for one of the following signal words and be
alert to the potential for personal injury, death or major
property damage
Warns of hazards that WILL cause serious personal injury,
death or major property damage.
Warns of hazards that CAN cause serious personal injury,
death or major property damage.
Warns of hazards that CAN cause personal injury
or property damage.
NOTICE:
Indicates special instructions which are very
important and must be followed.
NOTICE:
Blackmer Seal-Less pumps MUST only be installed In
systems, which have been designed by qualified
engineering personnel. The system MUST conform to
all applicable local and national regulations and safety
standards.
This manual is intended to assist in the installation and
operation of the Blackmer Seal-Less pumps, and
MUST be kept with the pump.
Blackmer Seal-Less pump service shall be performed
by qualified technicians ONLY. Service shall conform
to all applicable local and national regulations and
safety standards.
Thoroughly review this manual, all instructions and
hazard warnings, BEFORE performingany work on the
Blackmer Seal-Less pumps.
Maintain ALL system and Blackmer Seal-Less pump
operation and hazard warning decals.

IOM 108-B00: Page 2/12
SAFETY DATA
If pumping hazardous fluids,
system must be flushed, prior to
performing service or maintenance
Hazardous or toxic
fluids can cause
serious injury.
Failure to disconnect and lockout
electrical power before attempting
maintenance can cause shock,
burns or death
Hazardous voltage.
Can shock, burn or
cause death.
Failure to disconnect and lockout
electrical power or engine drive
before attempting maintenance can
cause serious personal injury or
death
Hazardous
machinery can
cause serious
personal injury
Strong magnetic field can cause
personal injury or death to
individuals with medical implants or
other magnetic field sensitive
medical conditions
Strong
Magnetic
field
Rare earth magnets may create
sparks through contact and
handling. Never handle rare earth
magnets in explosive atmospheres
where sparking may ignite that
atmosphere
Explosive
atmosphere can
cause serious
injury
Failure to use care when handling
magnets can cause personal injury
Strong magnetic
field can cause
personal injury
Failure to relieve system pressure prior to
performing pump service or maintenance
can cause personal injury or property
damage.
Hazardous pressure
can cause serious
personal injury or
property damage
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury, death or major property damage
Hazardous pressure
can cause personal
injury or property
damage
Operation without coupling guard can
cause serious personal injury, death or
major property damage
Do not operate
without guards in
place
PUMP DATA
PUMP IDENTIFICATION
A pump identification tag, containing the pump serial number, ID
number, and model designation, is attached to each pump. It is
recommended that the data from this tag be recorded and filed for
future reference. If replacement parts are needed, or if
information pertaining to the pump is required, this data must be
furnished to a Blackmer representative.
TECHNICAL DATA
PUMP MODEL SMVP50C,
SMVP100C SMVP200C,
SMVP300C
Maximum Pump Speed 1750 RPM 1150 RPM
Maximum Operating
Temperature 200°F (93°C) 200°F (93°C)
Minimum Operating
Temperature -40°F (-40°C) -40°F (-40°C)
Maximum Viscosity 10,000 SSU
(2,200 CP)* 25,000 SSU (5,250 CP)*
Maximum Differential
Pressure 125 psi (8.6 bar) 100 psi (6.9 bar)
Maximum Working
Pressure = Inlet Pressure
+ Differential Pressure
175 psi
(12.1 bar) 150 psi (10.3 bar)
Technical Data is for standard materials of construction. Consult
Blackmer Material Specs for optional materials of construction.
* Conversion is based on a specific gravity of 1.0.
INITIAL PUMP START UP INFORMATION
Model No.: ______________________________________
Serial No.: ______________________________________
ID No.: _________________________________________
Date of Installation: _______________________________
Inlet Gauge Reading: ______________________________
Discharge Gauge Reading: _________________________
Flow Rate: _______________________________________

IOM 108-B00: Page 3/12
INSTALLATION
NOTICE:
Blackmer seal-less pumps must only be installed in
systems designed by qualified engineering personnel.
System design must conform with all applicable
regulations and codes and provide warning of all
system hazards.
Install, ground and wire to local and
National Electrical Code requirements.
Install an all-leg disconnect switch near
the unit motor.
Disconnect and lockout electrical power
before installation or service
Electrical supply MUST match motor
nameplate specifications.
Hazardous voltage.
Can shock, burn or
cause death.
Motors equipped with thermal protection automatically
disconnect motor electrical circuit when overload exists.
Motor can start unexpectedly and without warning.
PRE-INSTALLATION CLEANING
NOTICE:
New pumps contain residual test fluid and rust inhibitor.
If necessary, flush pump prior to use.
Foreign matter entering the pump WILL cause extensive
damage. The suction tank and piping MUST be cleaned
and flushed prior to pump installation and operation.
LOCATION AND PIPING
An improperly designed piping system or improper unit
installation WILL significantly reduce pump performance
and life. Blackmer recommends the following piping system
layout and unit installation.
1. To minimize intake losses, locate the pump as close as
possible to the source of supply.
2. Intake piping and fittings MUST be at least as large in
diameter as the pump intake connection.
3. Minimize the number of intake line fittings (valves,
elbows, etc.) and piping turns or bends.
4. It is recommended an intake strainer be installed at
least 24" (0.6m) from the pump intake. For viscosities
less than 1000 SSU the strainer should have a net
open area of at least four times the area of the intake
pipe. For viscosities greater than 1000 SSU consult
the strainer manufacturer instructions. Strainers must
be cleaned regularly to avoid pump starvation.
5. Intake and discharge piping MUST be free of all leaks.
6. Expansion joints, placed at least 36" (0.9m) from the
pump, will compensate for expansion and contraction
of the pipes. Contact the flexible connector/hose
manufacturer for required maintenance/care and
design assistance in their use.
7. Install vacuum and pressure gauges in the 1/4" NPT
ports provided in the pump cylinder to check pump at
start up.
8. ALL piping and fittings MUST be properly supported to
prevent any piping loads from being placed on the
pump.
9. Check alignment of pipes to pump to avoid strains which
might later cause misalignment. See Figure 1. Unbolt
flanges or break union joints. Pipes should not spring away
or drop down. After pump has been in operation for a week
or two, completely recheck alignment.
Figure 1
10. When pumping liquids at elevated temperature, provisions
should be made to compensate for expansion and
contraction of the pipes, especially when long pipe lines are
necessary. Steel pipe expands approximately 3/4” (1.9 cm)
per 100 feet (30.49 m) per 100°F (37.8°C) rise in
temperature.
CHECK VALVES
The use of check valves or foot valves in the supply tank is not
recommended with self-priming, positive displacement pumps.
If the possibility of liquid backflow exists when the pump is off, a
check valve in the pump discharge piping is recommended
because the pump can motor in the reverse rotation and create
undue stress on all attached components. Never start a pump
when it is rotating in the reverse rotation as the added starting
torque can damage the pump and related equipment.
PUMP MOUNTING
Permanently mount the unit by securing the base plate with
adequately sized anchor bolts to a level concrete floor following
recommended industry standards. A solid foundation will reduce
system noise and vibration, and will improve pump performance.
Refer to ANSI/HI standards or a suitable pump handbook for
information on typical pump mounting and foundations.
BOLT
BASE
STANDARD
PIPE
WASHER
When using a foot mounted 284-286TC motor frame for
SMVP200C models or a foot mounted 254-256TC motor frame
for SMVP50C/100C models, shims are required under the
magnet housing to support the motor frame.

IOM 108-B00: Page 4/12
INSTALLATION
MOTOR INSTALLATION
Strong magnetic field can cause
personal injury or death to individuals
with medical implants or other magnetic
field sensitive medical conditions
Strong
Magnetic
field
Failure to use care when handling
magnets can cause personal injury
Strong magnetic
field can cause
personal injury
NOTICE:
Clear work area of all tools and materials affected by
magnets. Non-magnetic work surface recommended.
MAGNET SET
1. Put drive key in keyway on motor shaft.
2. Loosely assemble bushing with bolts & outer magnet.
Slide magnet assembly onto motor shaft.
3. Position bushing and magnet to Reference Dim “B”,
(see Table 1) and tighten setscrew over drive key.
4. Tighten the 3 bolts in a uniform sequence.
On SMVP50C/100C models: torque to 9 ft lbs. (12.2 Nm)
On SMVP200C models: torque to 15 ft lbs. (20.3 Nm)
Figure 2
PUMP
MODEL MOTOR FRAME
DIM “A”
MAGNET SET DIM “B” BUSHING SET
INCH MM INCH MM
SMVP50C,
SMVP100C
182TC /
184TC
213TC /
215TC
1.231 31.3 1.221 31.0
254TC /
256TC 1.731 44.0 1.721 43.7
SMVP200C,
SMVP300C
254TC /
256TC 1.117 28.4 1.107 28.1
284TC /
286TC 1.747 44.4 1.737 44.1
Table 1
5. When bolts are tightened, take a measurement for
Dim “A”. (see table 1)
6. If Measurement “A” does not match the value in the
Table, the bushing MUST be repositioned with a new
Dim “B”. Loosen the bolts and setscrew.
If Measurement “A” is High:
Move the bushing towards the motor “C-Face”
New Dim “B” = table Dim “B” less the difference
between Measurement “A” and table Dim “A”.
If Measurement “A” is Low:
Move the bushing away from the motor “C-Face”
New Dim “B” = table Dim “B” plus the difference
between Measurement “A” and table Dim “A”.
7. Retighten setscrew over drive key. Repeat Steps 4 – 6.
8. When Dim “A” is set correctly. Ensure that Shaft &
Outer Magnet assembly rotate freely without binding
9. Slide the motor adapter ring (86) over the outer magnet
to the “C-Face” of the motor. Ensure that the flange of
the motor adapter ring is fully and squarely seated.
On the SMVP50C/100C models the housing capscrews
(54B), installed in step 12, will secure the adapter in
place.
On SMVP200C/300C models install the four
adapter/motor capscrews (56), torquing to 27lbs ft (36.6
Nm). Starting from the pump side of the magnet housing
(57), thread the two jackscrews (54C) into the jackscrew
holes in the housing until they extend through
approximately 2 inches.
NOTICE:
Be prepared for strong magnet attraction between the
inner and outer magnets, forcibly pulling the motor
coupling adapter assembly inward.
10. Ensure that the magnet housing (57) is bolted to the
base.
11. Using an appropriately sized hoist, CAREFULLY insert
the outer magnet and motor into the mounted magnet
housing (57).
12. On SMVP200C/300C models, gradually unscrew the
jackscrews to allow the motor to fully engage in the
housing.
13. With the magnet housing fully and squarely seated,
install the four housing capscrews (54B) and torque to:
SMVP50C/100C 27 lbs ft (36.6 Nm)
SMVP200C/300C 27 lbs ft (36.6 Nm)

IOM 108-B00: Page 5/12
OPERATION
Operation without coupling guard can
cause serious personal injury, death or
major property damage
Do not operate
without guards in
place
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury, death or major property damage
Hazardous pressure
can cause personal
injury or property
damage
Operating pump against a closed valve
can cause system component failure,
personal injury and property damage
Hazardous pressure
can cause personal
injury or property
damage
Failure to relieve system pressure prior
to performing pump service or
maintenance can cause personal injury
or property damage.
Hazardous pressure
can cause personal
injury or property
damage
PRE-START UP CHECK LIST
1. Check the alignment of the pipes to the pump. Pipes
should be supported so that they do not spring away or
drop down when pump flanges or union joints are
disconnected.
2. Inspect complete piping system to ensure all valves and
fittings are in their start up or operation positions.
3. Ensure all electrical connections are correct and tight.
4. Jog the pump motor to ensure free and CLOCKWISE
pump rotation, as viewed from the fan end of the motor.
START UP PROCEDURES
NOTICE:
Consult the "troubleshooting" section of this manual if
difficulties are experienced during start up.
1. Start the motor. Priming should occur within one minute.
2. Check the vacuum and pressure gauges installed on the
pump to ensure the pump is operating within the
acceptable parameters. Record the gauge readings in
the "Initial Pump Start Up Information" section.
3. If possible, check the flow rate to ensure the pump is
operating within expected parameters.
4. Inspect piping, fittings and associated system equipment
for leaks, noise, vibration and overheating.
5. If equipped, check the pressure relief setting of the pump
relief valve by gradually closing a valve in the discharge
line momentarily and noting the reading on the pressure
gauge. This pressure reading should be 10-20 psi (.69 –
1.4 bar) higher than the maximum system operating
pressure. DO NOT run the pump for more than 15
seconds with the discharge valve completely closed.
If adjustments need to be made, refer to "Relief Valve
Setting and Adjustment."
PUMP ROTATION
The pump models described in this manual are designed as
RIGHT HAND pumps ONLY, with CLOCKWISE rotation.
When viewing the pump from the drive end (motor end), the
pump intake port must always be on the right, and the
discharge port on the left.
REVERSE ROTATION
NOTICE:
Magnetic coupled pumps should be operated in reverse
rotation for no more than 10 minutes, and only when a
separate pressure relief valve is installed to protect the
pump from excessive pressure.
It may be desirable to operate the pump in reverse rotation
for system maintenance. The pump will operate satisfactorily
for a LIMITED time, at a reduced performance level.
FLUSHING THE PUMP
NOTICE:
If flushing fluid is to be left in the pump for an extended
time, it must be a lubricating, non-corrosive fluid. If a
corrosive or non-lubricating fluid is used, it must be
flushed from the pump immediately.
1. To flush the pump, run the pump with the discharge
valve open and the intake valve closed. Bleed air into the
pump through the intake gauge plug hole or through a
larger auxiliary fitting in the intake piping. Pump air for
30-second intervals to clean out most of the pumpage.
2. Run a system compatible flushing fluid through the pump
for one minute to clear out the remainder of the original
pumpage.
3. To remove the flushing fluid, follow step 1 above.
On SMVP models any remaining fluid in the pump can
be drained from the cylinder through the drain plugs
(73A).
On SMVP200C models drain plugs are also located in
the inboard head.
NOTICE:
After flushing the pump some residual fluid will remain in
the pump and piping.
NOTICE:
Properly dispose of all waste fluids in accordance with
the appropriate standards and regulations.

IOM 108-B00: Page 6/12
OPERATION
PUMP RELIEF VALVE
An external bypass valve and/or internal
relief valve must be installed in the
system to protect the pump from
excessive pressure.
Hazardous pressure
can cause personal
injury or property
damage
The SMVP50C, SMVP100C, SMVP200C pump models are
offered with an optional pump relief valve assembly that bolts
onto the pump cylinder. Blackmer STRONGLY
RECOMMENDS the installation of the optional relief valve to
protect the pump from excessive pressure, and a separate
system pressure control valve to protect the system from
excessive pressure
NOTICE:
The pump relief valve is designed to protect the pump
from excessive pressure and must not be used as a
system pressure control valve.
Pumping volatile liquids under suction lift may cause
cavitation. Partial closing of the discharge valve WILL result
in internal relief valve chatter and is NOT recommended. For
these applications, install an external system pressure control
valve, and any necessary bypass piping, back to the storage
tank.
A system pressure control valve is also recommended when
operating for extended periods (more than 1 minute) against
a closed discharge valve.
RELIEF VALVE SETTING AND ADJUSTMENT
The factory relief valve pressure setting is marked on a metal
tag attached to the valve body. It is recommended the relief
valve be set at least 10-20 psi (.69-1.4 bar) higher than the
operating pressure or the system pressure control valve
setting.
DO NOT remove the R /V Cap OR adjust the relief valve
pressure setting while the pump is in operation.
Incorrect settings of the pressure relief
valve can cause pump component
failure, personal injury and property
damage
Hazardous pressure
can cause personal
injury or property
damage
Relief valve cap is exposed to pumpage
and will contain some fluid
Hazardous or toxic
fluids can cause
serious injury.
RELIEF VALVE ADJUSTMENT PROCEDURE:
1. To INCREASE the pressure setting, remove the relief
valve cap (1) and O-ring / gasket (88), and turn the
adjusting screw (2) inward, or CLOCKWISE. Install a
new R/V O-ring / gasket (88), and re-attach the R/V cap.
2. To DECREASE the pressure setting, remove the relief
valve cap (1) and O-ring / gasket (88), and turn the
adjusting screw (2) outward, or COUNTERCLOCKWISE.
Install a new R/V O-ring / gasket (88), and re-attach the
R/V cap.
Refer to corresponding Blackmer pump parts lists for relief
valve spring pressure ranges. Unless specified otherwise,
pumps are supplied from the factory with the relief valve
adjusted to the mid-point of the spring range.

IOM 108-B00: Page 7/12
MAINTENANCE
Failure to disconnect and lockout
electrical power before attempting
maintenance can cause shock, burns or
death
Hazardous voltage.
Can shock, burn or
cause death.
If pumping hazardous fluids, system
must be flushed, prior to performing
service or maintenance
Hazardous or toxic
fluids can cause
serious injury.
Strong magnetic field can cause
personal injury or death to individuals
with medical implants or other magnetic
field sensitive medical conditions
Strong
Magnetic
field
Rare earth magnets may create sparks
through contact and handling. Never
handle rare earth magnets in explosive
atmospheres where sparking may ignite
that atmosphere
Explosive
atmosphere can
cause serious
injury
Failure to disconnect and lockout
electrical power or engine drive before
attempting maintenance can cause
serious personal injury or death
Hazardous
machinery can
cause serious
personal injury
Failure to relieve system pressure prior
to performing pump service or
maintenance can cause personal injury
or property damage.
Hazardous pressure
can cause serious
personal injury or
property damage
Operation without guards in place can
cause serious personal injury, major
property damage, or death.
Do not operate
without guard
in place
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury, death or major property damage
Hazardous pressure
can cause serious
personal injury or
property damage
Failure to use care when handling
magnets can cause personal injury
Strong magnetic
field can cause
personal injury
NOTICE:
Maintenance shall be performed by qualified technicians
only, following the appropriate procedures and warnings
as presented in this manual.
NOTICE:
Properly dispose of all waste fluids according to state and
local regulations.
NOTICE:
Clear the work area of all tools and materials affected by
magnets. Non-magnetic work surface recommended.
STRAINERS
Adequately sized system strainers are recommended.
Strainers MUST be kept clean to ensure adequate fluid flow to
the pump. Failure to do so can cause pump cavitation and
system damage.
LUBRICATION NOTICE:
To avoid possible entanglement in moving parts do not
lubricate the optional motor coupling adaptor or any other
parts while the pump is running.
Pump sleeve bearings are lubricated by the pumpage. No
other lubrication is required. For motor lubrication, refer to the
manufacturer's instructions.

IOM 108-B00: Page 8/12
MAINTENANCE
VANE REPLACEMENT
1. Drain the pump and system, as required.
Drain plugs (73A) are located at the base of the cylinder
of SMVP Models. On SMVP200C/300C models drain
plugs are also located in the inboard head.
2. For replacement of the vanes ONLY, remove the outboard
head, following steps 10 and 11 in the "Pump
Disassembly" section of this manual.
3. Turn the shaft by hand until a vane (14) comes to the top
(12 o'clock) position of the rotor. Remove the vane.
4. Install a new vane, ensuring that the rounded edge is UP
(facing outward) and that the relief grooves are facing
TOWARDS the direction of rotation. See Figure 3.
5. Repeat steps 2 and 3 until all vanes have been replaced.
6. To reassemble, follow steps 2 through 7 in the "Pump
Assembly" section of this manual.
Figure 3 - Vane Installation
PUMP DISASSEMBLY
NOTICE:
The magnet housing (57) should remain mounted to its
base during pump disassembly. If removed, the magnet
housing (57) must be secured before pump disassembly.
1. Drain the pump and system, as required.
Drain plugs (73A) are located at the base of the cylinder
of SMVP Models. On SMVP200C/300C models drain
plugs are also located in the inboard head.
2. Disconnect the piping from the pump intake and discharge
connections.
3. Remove the four magnet housing/head capscrews (54A)
NOTICE:
Be prepared for strong magnetic attraction between the
inner and outer magnets, forcibly pulling the pump
assembly inward.
4. On SMVP50C/100C models: While facing the outboard
end of the pump, grasp the pump cylinder (12) with two
hands and firmly pull the pump assembly from the magnet
housing.
On SMVP200C/300C models: Attach an appropriately
sized hoist to the pump to prevent the pump from
dropping when the magnets release. Remove motor
housing adapter capscrews (54B). Starting from the
motor side of the magnet housing, thread the two
jackscrews (54C) into the holes of the housing. The
jackscrews will force the motor away from the housing to
release the magnets. The jackscrews should remain in the
magnet housing to aid in future reassembly of the pump
and housing. Using the hoist, pull the pump assembly
from the magnet housing.
5. Remove the containment can (50) from the inboard head,
using a slight pry, if necessary. DO NOT damage the
containment can or pump head. Remove and discard the
containment can O-ring (51).
6. Remove the impeller (52A) from the inner magnet by
removing the three impeller capscrews and washers (52B
& 52C)
Failure to use care when handling
magnets can cause personal injury
Strong magnetic
field can cause
personal injury
7. With properly sized snap ring pliers, remove the snap ring
(83) from the shaft end. Pull the inner magnet (52) from
the shaft. Remove the shaft key (35).
8. Remove the eight socket head capscrews (21) from the
inboard head and bearing assembly (20). Carefully slide
the inboard head assembly off the shaft. A pry may be
necessary to separate the head and cylinder. DO NOT
damage head, cylinder / casing or shaft.
On SMVP200C/300C models, remove and discard the
inner head O-ring (72A).
9. Remove the disc (71) and head seal ring / O-ring (72)
from the cylinder / casing. Discard the head seal ring / O-
ring.
10. Carefully pull the rotor and shaft assembly (13) from the
cylinder while preventing the vanes (14) and push rods
(77) from falling out of the rotor. Set the rotor and shaft
assembly aside for future vane replacement and
reassembly.
11. Remove the four bearing cover capscrews (28) and the
bearing cover (27). Remove and discard the bearing
cover seal ring (26).
12. Remove the eight outboard head capscrews (21 A) and
the outboard head and bearing assembly (23). Remove
the disc (71) and head seal ring / O-ring (72). Discard
head seal ring / O-ring. Use care not to let the disc fall and
become damaged.
13. MVP models only. Remove the liner (41) by uniformly
tapping around the outside diameter of the liner with a
hard wood drift and a hammer until it is driven from the
casing.
14. RELIEF VALVE DISASSEMBLY (if equipped)
a. Remove the valve cap (1) turn the adjusting screw (2)
to relieve the spring pressure.
b. Remove the relief cover capscrews (5) and relief valve
cover (4)
c. Remove the spring guide (7), spring (8), and valve (9)
from the relief valve bore.

IOM 108-B00: Page 9/12
MAINTENANCE
MAGNET HOUSING DISASSEMBLY
1. Remove the four housing/adapter capscrews (54B), and
pull the motor, motor adapter (86) and outer magnet (53)
from the magnet housing (57).
2. Remove the motor adapter capscrews (56), and the
motor adapter (86) from the motor.
3. Place a flat wrench or “plate” between the three bushing
capscrews and the “C” face of the motor. Loosen the
three capscrews located in the bushing (87) allowing
them to bottom out against the flat wrench or “plate” and
assist in removing the outer magnet. If room allows for
the screws to be removed completely, the bushing is
predrilled with jacking holes for the purpose of removing
the outer magnet from the bushing.
4. When outer magnet has been removed from the bushing,
loosen setscrew and remove bushing and keyway from
the motor shaft.
5. Pump and magnet housing disassembly is complete.
PUMP ASSEMBLY NOTICE:
Follow all hazard warnings and instructions provided in
the "maintenance" section of this manual.
Containment can failure will permit
fluid leakage and can cause serious
injury.
Hazardous or toxic
fluids can cause
serious injury.
Before reassembling the pump, all parts should be
thoroughly cleaned and inspected for wear, damage, and
replaced as necessary. Remove any burrs from the rotor
and mating cylinder (SMVP) or liner (MVP).
NOTICE:
The containment can (50) must be replaced if any
corrosion, cracking, wear or other damage is present.
1. Begin assembly on the outboard side of the pump, by
laying the pump cylinder (12) on a flat surface with the
intake port to the LEFT.
Figure 4 – SMVP Models
2. Install the disc (71) on the outboard end of the cylinder
with the disc holes positioned as shown in Figure 4. Use
the dowel locator pin hole to locate the disc.
3. Install a new head seal ring / O-ring (72) in the groove
provided between the disc and the cylinder.

IOM 108-B00: Page 10/12
MAINTENANCE
4. Inspect both sleeve bearings (24) for damage or wear. If
damaged, bearings MUST be replaced.
On SMVP50C/100C models: if the inside diameter of the
bearing measures 1.196" (30.38mm) or greater at any
point around the entire circumference, bearings MUST be
replaced.
On SMVP200C/300C models: if the inside diameter of the
bearing measures 1.765" (44.83mm) or greater at any
point around the entire circumference, bearings MUST be
replaced.
To replace bearings:
a. Using an appropriately sized arbor press, remove the
old bearing from the head.
b. To aid installation and prevent damage, heat the head
in an oven to 200°F (93°C).
c. Coat the new bearing with a quality grade of bearing
grease, and place it on the inside face of the head with
the notched end UP. Align the notch in the bearing
with the groove in the head.
d. Using an arbor press, CAREFULLY press the bearing
into the head until it is flush with the inside face of the
head. Ensure that the bearing does not become
misaligned during the pressing activity.
e. On SMVP200C/300C models, lightly grease the inner
head O-ring (72A) using a silicone base O-ring
lubricant. Install into the O-ring recess on the inside
face of the head. The grease will hold the O-ring in
place during head installation.
4. Install the outboard head and bearing assembly (23) on
the pump cylinder with the V-notch down, towards the
bottom of the cylinder. Use the head dowel pins for proper
alignment.
5. For SMVP Models lubricate the eight outboard head
capscrews (21A) with a quality grade of anti-seize
compound and install, torquing to 15 lbs-ft(20.3Nm).
7. Install a new bearing cover O-ring / seal ring (26) in the
groove in the outboard head / bearing cover. Place the
bearing cover (27) on the head.
For SMVP Models lubricate the bearing cover capscrews
(28) with a quality grade of anti-seize compound, and
install, torquing to 15 lbs-ft(20.3Nm).
8. Turn the pump cylinder / casing over so that it rests on the
just installed outboard head and bearing cover.
9. Remove the six vanes (14) and three push rods (77) from
the rotor assembly. Inspect for wear and damage, and
replace as follows:
a. The push rods MUST be installed before installing the
rotor and shaft (13) into the pump cylinder / casing. To
do so, hold the rotor and shaft vertical, with the non-
driven (shorter end) down. Slide the push rods into the
push rod holes of the rotor, then insert the rotor and
shaft into the open end of the pump cylinder / casing.
b. Insert new vanes into the rotor slots with the rounded
edges outward, and the vane relief grooves facing
TOWARDS the direction of rotation. Refer back to
Figure 3. If necessary, move the push rods with a
small screwdriver to install the vanes.
10. Install the inboard disc (71), head seal ring / O-ring (72),
and sleeve (24) bearing as instructed in steps 2 through 4
above.
11. Install the inboard head and bearing assembly (20) on the
pump cylinder / casing with the V-notch down, towards the
bottom of the cylinder / casing. Use the head dowel pins
for proper alignment.
12. For SMVP Models lubricate the eight inboard head
capscrews (21) with a quality grade of anti-seize
compound, and install, torquing to 15 lbs ft (20.3Nm).
RELIEF VALVE ASSEMBLY (If Equipped)
1. Insert the valve (9) into the relief valve bore of the casing
with the fluted end inward.
2. Install the relief valve spring (8) and spring guide (7)
against the valve.
3. Attach a new relief valve O-ring (10) and the valve cover
(4) on the cylinder.
4. Screw the relief valve adjusting screw (2) with locknut (3)
into the valve cover (4) until it makes contact with the
spring guide (7). NOTICE:
The relief valve setting MUST be tested and adjusted more
precisely before putting the pump into service. Refer to
"Relief Valve Setting and Adjustment"
5. After the relief valve has been adjusted, tighten the
Locknut (3) and install the relief valve cap (1) and O-ring
(88)
MAGNET HOUSING ASSEMBLY
INNER MAGNET & PUMP ASSEMBLY
1. Install the shaft key (35) on the inboard shaft end.
2. Align the inner magnet (52) with the key, and slide the
magnet over the shaft with the pump end of the magnet
towards the inboard head.
3. Fully and squarely install the snap ring (83) into the
groove in the end of the shaft.
4. Place the impeller (52A) against the inner magnet.
Lubricate the impeller capscrews (52B) with anti-seize
compound. Attach the impeller to the magnet with the
capscrews and lockwashers (52B, 52C).
5. Check to ensure the pump shaft rotates freely when
turned by hand.
Install a new containment can O-ring (51) into the groove
provided on the hub of the inboard head (20). Slide the
containment can (50) over the magnet and push it firmly
against the inboard head.

IOM 108-B00: Page 11/12
MAINTENANCE
6. Using an appropriately sized hoist CAREFULLY slide the
pump assembly into the mounted magnet housing.
On SMVP200C/300C models if motor, adapter ring, and
outer magnet are in place, the jackscrews (54C), installed
in the magnet housing during disassembly, will hold the
motor partially out of the housing. Gradually unscrew the
jackscrews to allow the motor to fully engage in the
housing.
With the magnet housing fully and squarely seated, install
the four housing capscrews (54B), torquing to 27lbs ft
(36.6 Nm).
7. Apply anti-seize compound to the four housing / head
capscrews (54A) and install, torquing to 27 lbs ft (36.6
Nm).
OUTER MAGNET ASSEMBLY
Follow instructions given in the MOTOR INSTALLATION
Section of this Manual.
FINAL ASSEMBLY
When Outer Magnet & Motor have been installed correctly.
1. Reinstall the piping to the pump intake and discharge
connections.
2. Reassembly is complete.
NOTICE:
Follow all steps in the "operation" section of this manual
for start up procedures.
TROUBLESHOOTING
NOTICE:
Maintenance shall be performed by qualified technicians only,
following the appropriate procedures and warnings as presented in this manual.
PROBLEM CAUSE
Pump Not Priming
See causes 1 through 7
Reduced Capacity
See causes 1 , 2, 3, 6 through 10
Noisy
See causes 1, 6, 7, 8, 9, 11 through 14
Damaged Vanes
See causes 8, 11, 16 through 21
Broken Shaft
See causes 7, 11, 13, 16, 17&20
Motor Overload
See causes 9, 13, 17, 22 & 23
1. Suction/discharge valve incorrectly set.
2. Leaks in suction piping.
3. Incorrect rotation.
4. Broken shaft.
5. Pump vapor locked.
6. Incorrect pump speed.
7. Vanes damaged, worn or incorrectly installed.
8. Cavitation.
9. Damaged or worn pump or system components.
10. Excessive piping/system friction losses.
11. Relief valve incorrectly set, worn or damaged.
12. Operating against a closed discharge.
13. Shaft bent or misaligned.
14. Worn or damaged bearings.
15. Piping inadequately anchored.
16. Foreign objects entering the pump.
17. Viscosity too high
18. Excessive heat.
19. Worn or damaged push rods.
20. Hydraulic hammer - pressure spikes.
21. Incompatible fluid(s).
22. Inadequate horsepower.
23. Incorrect voltage, wiring, phase loss.

1809 Century Avenue, Grand Rapids, Michigan 49503-1530, U.S.A.
Telephone: [phone] / Fax: [phone]
Email: [email protected] / Internet: www. blackmer .com