Fristam Pumps FS Series Instructions for use

Sanitary Mixing and Blending equipMent
inStruction and Maintenance Manual:
FS SerieS Shear Blender

Fristam FS Series Shear Blender
2
deScription
This manual contains installation, operation, assembly, disassembly and repair instructions for the Fristam
FS Shear Blender.
The motors are standard NEMA totally enclosed fan cooled (TEFC) motors. They are C-face and have a
locked front bearing. These motors do require feet. Replacements motors are easily available from local
motor distributors.
caution
Begin all pump maintenance operations by disconnecting the energy source to the pump. Observe all lock
out/tag out procedures as outlines by ANSI Z244.1-1982 and OSHA 1910.147 to prevent accidental start-up
and injury.
Safety
This instruction and maintenance manual shall be read and completely understood prior
to operation of the pump. The manual should be kept available at the pump installation
location.
All applicable local/national regulation and laws shall be followed.
All work described herein may only be performed by qualified personnel.
Personal protective equipment (PPE) such as hearing protection may be required.
Despite inherent safe design measures some amount residual risk will remain. Throughout
the manual these risks will be pointed out.

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taBle oF contentS
Technical Information...................................................................................................................................4
Preventative Maintenance.............................................................................................................................6
Installation.....................................................................................................................................................7
Assembly Drawings: 757/758 Seal...............................................................................................................10
Assembly Drawings: 857/858 Seal...............................................................................................................12
Exploded Pump Assembly Drawings...........................................................................................................14
Seal Replacement ........................................................................................................................................16
Pump Shaft Replacement............................................................................................................................23
Setting Rotor-to-Stator Gap........................................................................................................................25
Setting Shaft Alignment..............................................................................................................................27
Motor Replacement .....................................................................................................................................28
Maintenance Record....................................................................................................................................29
Warranty ......................................................................................................................................................31

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technical inForMation
SpeciFicationS
Maximum Inlet Pressure........................................................................................... 80 PSI - Close Coupled
.................................................................................................................... 150 PSI - Bearing Block
Temperature Range .................................................................................................................-40oF – 400oF
Noise Level............................................................................................................................... 60 – 85 dB (A)
Standard MaterialS oF conStruction (note: other optionS availaBle)
Standard MaterialS oF conStruction (note: other optionS availaBle)
Product Contact Components............................................................................... AISI 316L Stainless Steel
Seal Components
Rotating Seal ................................................................ Chrome Oxide coated 316L Stainless Steel
Stationary Seal ......................................................................................................... Silicon Carbide
Flush Seal (if installed) ........................................................................................................Ceramic
Product Contact Surface Finish........................................................................................................ 32 in Ra
Flange Support ................................................................................................................................ Cast Iron
Gaskets / O-rings ....................................................................................................................................Viton
Cover and Stator O-rings ....................................................................................................................... Buna
Motor .....................................................NEMA TEFC C-face (Painted Rolled Steel or Painted Cast Iron)
......................................................................... 3 Phase, 60 Hz, 208-230/460 VAC, 1750/3500 RPM
Front pull-out Seal optionS
Single Internal Mechanical
Single Internal Mechanical with Cascade
Single Internal Mechanical with Double External Mechanical
Recommended Seal Flush Pressure........................................................................ 5 PSI Maximum
Recommended Seal Flush Flow.................................................................... 1 –2 Gallons per Hour
Seal SizeS
757/857 ................................................................................ Used on Models: 710, 720, 3520, 3530, & 3540
......................................................................Motor Frame Range: 140TC – 320TC, Single Flange
758/858 ............................................................................................................Used on Model: 3550 & 3540
......................................................................Motor Frame Range: 180TC—360TC, Double Flange

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recoMMended torque valueS
Rotor Nut........................................................................................................................................... 40 ft-lbs
Stator Nut ......................................................................................................................................... 65 in-lbs
Cover Hex Nut ................................................................................................................................... 45 ft-lbs
757 Housing Clamp Bolt................................................................................................................... 55 ft-lbs
758 Housing Bolts ............................................................................................................................. 50 ft-lbs
Motor Bolts
56C – 140TC ......................................................................................................................... 20 ft-lbs
180TC – 280TSC................................................................................................................... 55 ft-lbs
320TC – 360TC ................................................................................................................... 110 ft-lbs
Shaft Collar Screw(s)
56C – 140TC ......................................................................................................................... 12 ft-lbs
180TC – 280TSC................................................................................................................... 24 ft-lbs
280TC – 360TSC................................................................................................................... 43 ft-lbs
rotor-to-Stator gapS
All models .............................................................................................................................0.5 mm (0.020”)
ShaFt run-out tolerance
All models ...........................................................................................................................0.05 mm (0.002”)
toolS For aSSeMBly & diSaSSeMBly
10 mm socket ................................................................................................................................stator nuts
9/16” socket ........................................................................................................... 56C – 140TC motor bolts
3/4” socket ..........................................................180TC – 280TC motor bolts, double flange housing bolts
..................................................................................................... Single flange housing clamp bolt
15/16” socket ................................................................................... Rotor nut, 320TC – 360TC motor bolts
3/16” Allen wrench socket.....................................................................................56C – 180TC shaft collars
1/4” Allen wrench socket.................................................................................. 210TC – 250TC shaft collars
5/16” Allen wrench socket.............................................................................. 280TC – 360TSC shaft collars
3/4” wrench..............................................................................................................Single flange clamp bolt
1/2” wrench.............................................................................................For forcing screw (if hex bolt type)
Ratchet ............................................................................................................................For loosening bolts
Torque wrench.............................................................................................................For proper tightening
Adjustable pliers ....................................................................................................For removing water pipes
Soft-faced hammer ..........................................................................................For removing cover star nuts
1” socket............................................................................................................................For cover hex nuts
3/8” diameter rod......................................... For holding the shaft when tightening & loosening the rotor
Food grade lubricant………………………………………… ............ For lubricating O-rings and gaskets
Gapping Shims .5mm/.020”..................................................................... Model 710 (part# 1373000089)
.............................................................................................. Model 3520-3530 (part# 1373000062)
.............................................................................................. Model 3540-3550 (part# 1373000063)

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Recommended PReventive maintenance
Recommended Seal maintenance
Visually inspect mechancical seal daily for leakage. Replace mechanical seal annually under normal duty.
Replace mechanical seal as often as required under heavy duty.
elaStomeR inSPection
Inspect all elastomers when performing pump maintenance. We recommend replacing elastomers (O-rings
and gaskets) during seal, pump shaft and/or motor replacement.
PumP Shaft inSPection
Inspect the pump shaft and collar annually for wear. Inspect the shaft collar bolt(s) anually or more often in
corrosive environments.
cleaning RecommendationS
The FS Shear Blender is designed for CIP (clean-in place) cleaning. It is not necessary to disassemble the
blender for cleaning in most applications. For sticky products the blender should be rinsed after the process
is complete to prevent the blender components from sticking together and causing damage.
The blender should be run at a minimum of 1,000 rpm for cleaning. The blender can be run at reduced
speed during CIP. If the blender is run too fast, flow will be restricted through the blender and it will cavitate.
Excessive cavitation will cause component damage. For proper cleaning the flow must go forward through
the blender. Do not clean the blender with reverse flow.
motoR lubRication RecommendationS
Use a high grade ball and roller bearing grease. (See Tables 1-3 for more details.)
Please consult the motor manufacturers’ recommendations for lubrication.
Table 1: Motor Lubrication Intervals for Standard Conditions*
Frame Size: NEMA (IEC) 3500 RPM 1750 RPM
Up to 210 incl. (132 IEC) 5,500 hrs. 12,000 hrs.
Over 210 to 280 incl. (180 IEC) 3,600 hrs. 9,500 hrs.
Over 280 to 360 incl. (225 IEC) 2,200 hrs. 7,400 hrs.
*For severe conditions, multiply interval hours by 0.5; for extreme conditions, multiply interval hours by 0.1
Table 2: Service Conditions Definitions
Service
Conditions
Max. Ambient
Temperature
Atmospheric Contamination
Standard 104°F (40°C) Clean, little corrosion
Severe 122°F (50°C) Moderate dirt, corrosion
Extreme >122°F (50°C) Severe dirt, abrasive dust, corrosion
Table 3: Volume of Grease to be Added per Bearing
Frame Size NEMA (IEC) Grease IN3Volume TSP
Up to 210 incl. (132 IEC) 0.6 2.0
Over 210 to 280 incl. (180 IEC) 1.2 3.9
Over 280 to 360 incl. (225 IEC) 1.5 5.2

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inStallation
unpacking
Check the contents and all wrapping when unpacking the pump. Inspect the pump carefully for any damage
that may have occurred during shipping. Immediately report any damage to the carrier. Remove the shaft
guard and rotate the pump shaft by hand to make sure the rotor rotates freely. Keep the protective caps over
the pump inlet and outlet in place until you are ready to install the pump.
inStalling
Prior to actually installing the pump, ensure that:
• The pump will be readily accessible for maintenance, inspection and cleaning.
• Adequate ventilation is provided for motor cooling.
• The drive and motor type is suitable for the environment where it is to be operated. Pumps intended for
use in hazardous environments (i.e. explosive, corrosive, etc.) must use a motor and drive with the
appropriate enclosure characteristics. Failure to use an appropriate motor type may result in serious
damage and/or injury.
piping guidelineS
This section describes good piping practices to obtain maximum efficiency and service life
from your pump.
Maximum performance and trouble-free operation require adherence to good piping
practices.
• Ensuring proper piping support and alignment at both the suction inlet and discharge
outlet can help prevent serious damage to the pump housing (Figure 23).
• Avoid abrupt transitions in the piping system (Figure 24).
• Avoid throttling valves in the suction piping.
• Keep suction lines as short and direct as possible.
• Ensure that the NPSH available in the system is greater
than NPSH required by the pump.
• Avoid sump areas where sediments may collect (Figure 25). Figure 24
Figure 25
Figure 23

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• Avoid the formation of air pockets in
the piping (Figure 26).
• Avoid abrupt closure of shut-off
valves, this may cause hydraulic
shock which can cause severe
damage to the pump and system.
• Avoid elbows in the suction line
if possible. When necessary they should be located 5 pipe
diameters away from the pump inlet, and have a bend radius
greater than 2 pipe diameters (Figure 27).
• Check valves in discharge line should be a minimum of 5 ft.
away from the pump outlet (Figure 27).
electrical inStallation
We use standard duty TEFC motors unless otherwise specified.
Many motor options are available: washdown, flameproof,
explosion proof, hostile duty or chemical duty.
The motor selected should meet the requirements of the specified operating conditions. A change in
conditions (for example, higher viscosity, higher specific gravity, lower head losses) can overload the motor.
When changing operating conditions or whenever there is any doubt, please contact Fristam Pumps, Inc., for
technical assistance.
Have an electrician connect the motor using sound electrical practices. Provide adequate protection. Pumps
fitted with mechanical seals must not run dry, not even momentarily. Determine the direction of rotation by
watching the motor fan, which must turn clockwise.
puMp operationS
Start-up inStructionS
• Remove any foreign matter that may have entered the pump.
• Do not use the pump to flush the system!
• Check pump for proper rotation as indicated on the pump. Proper motor direction is clockwise when
looking at the fan end of the motor. (NOTE: When checking the direction of rotation, the pump must be
full of liquid.)
• Never run the pump dry, even momentarily. Seal damage can result.
Shut-down inStructionS
• Shut off the power supply to the pump.
• Close the shut-off valves in the suction and discharge piping.
• Drain and clean the pump.
• Protect the pump against dust, heat, moisture and impact damage.
Figure 27
Figure 26

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inStallation oF water FluSh For douBle Mechanical Seal
Set up the water flush for the double mechanical seal as shown (Figure 28). Use only between 1-2 gallons
per hour of water at a maximum pressure of 5 PSI. Excessive flow of water through the seal increases the
pressure inside the seal. Note: maximum pressure inside the seal is 5 PSI. Excessive flow/pressure through
the seal flush will cause excessive wear and shorten seal life.
Pipe the exit side of the water flush with 2-5 feet physical height of tubing. This ensures that some water is
always in the center seal and the seal
never runs dry.
It is possible to inject steam through
the center seal (within the pressure
requirements). We do not recommend
using steam alone for the cooling/
lubricating of the seal.
It is desirable to have the flush water
on the outlet side visible. This allows an
easy check to see that the flush water
is on and also if the seal is functioning
properly. In a malfunctioning seal the
flush water will disappear, become
discolored, or show an unusual
increase in flow. If these conditions
exist, check the seal and replace if
necessary.
inStallation oF water
caScade
The water cascade (if supplied) is piped through
the hub of the pump housing and into the
stationary seal. Since there is no rear seal, the
flush water will exit through the rear of the seal
area (Figure 29).
Not all FPR pumps require a water cascade on
the seal.
Use about 1-2 gallons per hour of water at a
maximum pressure inside the seal of 5 psi.
COOLING WATER IN
WATER PIPE CONNECTIONS
FOR DOUBLE SEALS
1/8" N.P.T.
THROTTLE THIS VALVE
TO 1-2 GAL/HR
VISIBLE WATER
FLOW
TO DRAIN
2-5 FEET
IL-0173
7/7/00
Figure 28
Figure 29

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Single Seal aSSeMBly (757/758)
Rotating Seal O-Ring
Rotor Nut
Gasket
Outer Seal
Driver O-Ring
Inner Seal Driver O-RingStationary Seal O-Ring
Stationary Seal Rotating Seal Rotating Seal Spring Seal Driver

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douBle Seal aSSeMBly (757/758)
Rotating
Seal O-Ring
Rotor Nut
Gasket
Outer Seal
Driver O-Ring
Inner Seal
Driver O-Ring
Stationary Seal
Rotating Seal
Rotating Seal Spring
Seal Driver
Flush Seal
Stationary
Seal O-Rings
Flush Seal
O-Ring
Flush
Seal
Spring

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Single Seal aSSeMBly (SizeS 857/858, coil Spring)
Rotating Seal O-Ring
Impeller Nut Gasket
Outer Seal Driver O-Ring
Inner Seal Driver O-Ring
Stationary Seal O-Ring
Stationary Seal
Rotating Seal
Rotating Seal Spring
Seal Driver
Rotating Seal Washer

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douBle Seal aSSeMBly (SizeS 857/858, coil Spring)
Rotating
Seal O-Ring
Impeller Nut
Gasket
Inner Seal
Driver O-Ring
Outer Seal
Driver O-Ring
Stationary Seal
Rotating Seal
Rotating Seal Spring
Seal Driver
Flush Seal
Stationary
Seal O-Rings
Flush Seal
O-Ring
Flush
Seal
Spring
Rotating Seal Washer

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exploded aSSeMBly
Single Flange
Guard Screw
Guard
Flange
Clamping Nut
Clamping Bolt
Motor Bolt
& Washer
Shaft Clamp
Rotor Key
Shaft
Housing
Water Pipe
Motor
Guard Screw
Flange
Shaft Clamp
Rotor Key
Shaft
Housing
Water Pipe
Housing Bolt
& Washer
Guard
Motor Bolt
& Washer
Motor
exploded aSSeMBly
douBle Flange

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Flush Seal Spring
Flush Seal O-Ring
Flush Seal
Stationary Seal
Stationary
Seal O-Rings
Rotating Seal
Rotating Seal
O-Ring
Rotating Seal Spring
Outer Seal Driver O-Ring
Seal Driver
Inner Seal Driver O-Ring
Rotor
Rotor Nut Gasket
Rotor Nut
Cover O-Ring
Cover
Cover Nut
(Star or Hex)
Inner
Stator
O-Ring
Outer
Stator
O-Ring Forcing Screw
(hex bolt or stud
with knob)
Stator
Coil spring option 857
Stationary Seal
Flush Seal O-Ring
Flush Seal
Rotating Seal
Washer
Seal Driver
Flush Seal Spring
Stationary Seal
O-Rings
Rotating Seal
O-Ring
Coil Spring
Inner Seal Driver O-Ring
Outer Seal Driver O-Ring

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Note: When replacing ANY seal part, it is
important that ALL seal wear parts are
replaced to ensure seal integrity.
Figure 1
Remove flange guard.
Remove cover nuts.
Remove cover and discard cover O-ring.
Remove the stator from the cover by turning
the forcing screws clockwise to free the stator
from the cover. Remove and discard the stator
O-rings.
Seal replaceMent
diSaSSeMBly
Figure 2
Place 3/8” rod or Phillips screwdriver in
shaft hole. Remove rotor nut. Discard rotor
nut gasket.
Remove rotor and discard rotor O-ring.
You may need to insert two long rods or
screwdrivers into the holes in the rotor to
remove it.
Remove the rotor key.
3/8” Shaft Hole

Fristam FS Series Shear Blender
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Figure 3
Remove seal driver/rotating seal
assembly.
Discard rotating seal, O-rings
and spring. Do not discrad the
seal driver.
Remove and discard the
stationary seal and its O-rings.
Double Seal Only: Remove flush
seal and flush seal spring and
discard.
(Note: to distinguish between
the seal springs: FLUSH SEAL
SPRING HAS A WHITE STRIPE
ON THE OUTSIDE EDGE;
ROTATING SEAL SPRING DOES
NOT.)
Flush Seal
Components
Rotating Seal Spring
(may be wave spring
or coil spring)
Flush Seal Spring
Coil spring option

Fristam FS Series Shear Blender
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Figure 5
Single Seal:
Install single stationary seal O-ring and lubricate.
Double Seal:
Install single and double stationary seal O-rings and
lubricate.
Figure 6
Install the stationary seal into housing making
sure to align flats on the seal with the flats on the
housing.
Stationary Seal O-ring
(single seal)
Align flats on
housing & seal
Stationary Seal O-rings
(double seal)
aSSeMBly (all ModelS except 4001) FLUSH SEAL
(if pump has double seal)
Figure 4
Install spring behind shaft
pins. Place o-ring into double
rotating seal and lubricate.
Push seal onto shaft making
sure slots align with pins.
(Note: housing and flange
removed from picture for
clarity)

Fristam FS Series Shear Blender
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Figure 7
Install spring behind seal pins inside the seal driver.
Figure 9
Slide inner seal driver O-ring
onto the shaft and lubricate.
(Note: housing and flange
removed from picture for
clarity)
Figure 8
Install single rotating seal O-ring and lubricate. Slide seal
driver onto rotating seal making sure to align pins inside
the driver with the slots on the seal.
Inner Seal Driver O-ring

Fristam FS Series Shear Blender
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ROTATING SEAL - COIL SPRING STYLE ONLY
Figure 7C
Lubricate and place the seal o-ring inside the rotating
seal.
Place the seal washer into the rotating seal.
Install one end of the seal spring into the rotating seal
making sure that the tab of the spring is in the slot on
the rotating seal.
Figure 8C
Lubricate and place the inner seal driver o-ring inside
the seal driver.
With one end of the spring already in the slot of the
rotating seal, install the tab on the other end of the
spring into the one of the holes on the front seal
driver.
PUMP ASSEMBLY,
CONTINUED
Figure 10
Slide seal driver assembly
onto the shaft.
(Note: housing and flange
removed from picture for
clarity)
Coil spring option
Wave spring option