Waukesha 200 series User manual

Operation and Maintenance Manual
200 Series Liquid Ring Self-Priming Pumps
Read and understand this manual
prior to installing, operating or servicing this equipment.

Table of Contents
Issued: January 2003 95-03074 Page 3
Revised: June 2005
Waukesha Cherry-Burrell Warranty .........................................................4
Shipping Damage or Loss .............................................................................4
Warranty Claim .............................................................................................4
Safety ..............................................................................................................5
Care of Stainless Steel ..................................................................................6
Stainless Steel Corrosion ..............................................................................6
Alloy 88 ........................................................................................................6
Elastomer Seal Replacement Following Passivation ....................................6
Introduction ..................................................................................................7
Manual Content .............................................................................................7
Receiving Your Pump ...................................................................................7
Pump Characteristics ....................................................................................8
Performance Characteristics .........................................................................8
Quality Control ........................................................................................... 8
Standard Construction ................................................................................ 8
Construction Options .................................................................................. 8
Leg Kit ........................................................................................................ 8
Motors ........................................................................................................ 8
Enclosure Options ...................................................................................... 8
Operating Parameters ................................................................................. 8
Dimensions ...................................................................................................9
Installation .....................................................................................................10
Special Requirements for Liquid Ring Self-Priming Pump .........................10
General Requirements ...................................................................................10
Installation Safety Procedures .................................................................... 11
Pump Leveling ..............................................................................................11
Type 4 Seal Flush Supply Installation ..........................................................11
Electrical Connections ..................................................................................11
Before First Startup .......................................................................................12
Cleaning Pump and Piping .........................................................................12
Cleaning Safety Procedures ........................................................................12
Preliminary Test Run ..................................................................................12
Operation .......................................................................................................13
Starting Pump ...............................................................................................13
Stopping Pump ..............................................................................................13
Maintenance ..................................................................................................14
Scheduled Routine Maintenance ..................................................................14
Disassembly of Pump ...................................................................................14
Type 1 Seal Disassembly .......................................................................... 16
Type 4 Seal Disassembly .......................................................................... 17
Inspecting Parts .............................................................................................17
Assembly of Pump ........................................................................................18
Backplate Assembly ................................................................................... 18
Type 1 Seal Assembly ................................................................................19
Type 4 Seal Assembly ................................................................................19
Parts Lists ......................................................................................................22
Seal Components All Pumps ........................................................................22
2065LR Self-Priming Pump Parts ................................................................24
2085LR Self-Priming Pump Parts ................................................................25
Motor Mounts ...............................................................................................26
Troubleshooting ............................................................................................27

Warranty Waukesha Cherry-Burrell
Page 4 95-03074 January 2003
Waukesha Cherry-Burrell Warranty
Seller warrants its products to be free from defect in materials and workmanship for a period of one (1) year from the date
of shipment. This warranty shall not apply to products which require repair or replacement due to normal wear and tear or
to products which are subjected to accident, misuse or improper maintenance. This warranty extends only to the original
Buyer. Products manufactured by others but furnished by Seller are exempted from this warranty and are limited to the
original manufacturer’s warranty.
Seller’s sole obligation under this warranty shall be to repair or replace any products that Seller determines, in its
discretion, to be defective. Seller reserves the right either to inspect the products in the field or to request their prepaid
return to Seller. Seller shall not be responsible for any transportation charges, duty, taxes, freight, labor or other costs. The
cost of removing and/or installing products which have been repaired or replaced shall be at Buyer’s expense.
Seller expressly disclaims all other warranties, express or implied, including without limitation any warranty of
merchantability of fitness for a particular purpose. The foregoing sets forth Seller’s entire and exclusive liability, and
Buyer’s exclusive and sole remedy, for any claim of damages in connection with the sale of products. In no event shall
Seller be liable for any special consequential incidental or indirect damages (including without limitation attorney’s fees
and expenses), nor shall Seller be liable for any loss of profit or material arising out of or relating to the sale or operation
of the products based on contract, tort (including negligence), strict liability or otherwise.
Shipping Damage or Loss
If equipment is damaged or lost in transit, file a claim at once with the delivering carrier. The carrier has signed the Bill of
Lading acknowledging that the shipment has been received from WCB in good condition. WCB is not responsible for the
collection of claims or replacement of materials due to transit shortages or damages.
Warranty Claim
Warranty claims must have a Returned Goods Authorization (RGA) from the Seller before returns will be accepted.
Claims for shortages or other errors, exclusive of transit shortages or damages, must be made in writing to Seller within
ten (10) days after delivery. Failure to give such notice shall constitute acceptance and waiver of all such claims by Buyer.

Waukesha Cherry-Burrell Safety
January 2003 95-03074 Page 5
Safety
READ AND UNDERSTAND THIS MANUAL
PRIOR TO INSTALLING, OPERATING OR SERVICING THIS EQUIPMENT
Waukesha Cherry-Burrell recommends users of our equipment and designs follow the latest Industrial Safety Standards.
At a minimum, these should include the industrial safety requirements established by:
1. Occupational Safety and Health Administration (OSHA), Title 29 of the CFR
Section 1910.212- General Requirements for all Machines
2. National Fire Protection Association, ANSI/NFPA 79
ANSI/NFPA 79- Electrical Standards for Industrial Machinery
3. National Electrical Code, ANSI/NFPA 70
ANSI/NFPA 70- National Electrical Code
ANSI/NFPA 70E- Electrical Safety Requirement for Employee Workplaces
4. American National Standards Institute, Section B11
Attention: Servicing energized industrial equipment can be hazardous. Severe injury or death can result from electrical
shock, burn, or unintended actuation of controlled equipment. Recommended practice is to disconnect and lockout
industrial equipment from power sources, and release stored energy, if present. Refer to the National Fire Protection
Association Standard No. NFPA70E, Part II and (as applicable) OSHA rules for Control of Hazardous Energy Sources
(Lockout-Tagout) and OSHA Electrical Safety Related Work Practices, including procedural requirements for:
• Lockout-tagout
• Personnel qualifications and training requirements
• When it is not feasible to de-energize and lockout-tagout electrical circuits and equipment before working on or near
exposed circuit parts
Locking and Interlocking Devices: These devices should be checked for proper working condition and capability of
performing their intended functions. Make replacements only with the original manufacturer’s renewal parts or kits.
Adjust or repair in accordance with the manufacturer’s instructions.
Periodic Inspection: Industrial equipment should be inspected periodically. Inspection intervals should be based on
environmental and operating conditions and adjusted as indicated by experience. At a minimum, an initial inspection
within 3 to 4 months after installation is recommended. Inspection of the electrical control systems should meet the
recommendations as specified in the National Electrical Manufacturers Association (NEMA) Standard No. ICS 1.3,
Preventative Maintenance of Industrial Control and Systems Equipment, for the general guidelines for setting-up a
periodic maintenance program.
Replacement Equipment: Use only replacement parts and devices recommended by the manufacturer to maintain the
integrity of the equipment. Make sure the parts are properly matched to the equipment series, model, serial number, and
revision level of the equipment.
Warnings and cautions are provided in this manual to help avoid serious injury and/or possible damage to equipment:
DANGER: marked with a stop sign.

Immediate hazards which WILL result in severe personal injury or death.
WARNING: marked with a warning triangle.

Hazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION: marked with a warning triangle.

Hazards or unsafe practices which COULD result in minor personal injury or product or property damage.

Care of Stainless Steel Waukesha Cherry-Burrell
Page 6 95-03074 Issued: January 2003
Revised: June 2005
Care of Stainless Steel
Stainless Steel Corrosion
Corrosion resistance is greatest when a layer of oxide film is formed on the surface of stainless steel. If film is disturbed or
destroyed, stainless steel becomes much less resistant to corrosion and may rust, pit or crack.
Corrosion pitting, rusting and stress cracks may occur due to chemical attack. Use only cleaning chemicals specified by a
reputable chemical manufacturer for use with 300 series stainless steel. Do not use excessive concentrations, temperatures
or exposure times. Avoid contact with highly corrosive acids such as hydrofluoric, hydrochloric or sulfuric. Also avoid
prolonged contact with chloride-containing chemicals, especially in presence of acid. If chlorine-based sanitizers are used,
such as sodium hypochlorite (bleach), do not exceed concentrations of 150 ppm available chlorine, do not exceed contact
time of 20 minutes, and do not exceed temperatures of 104°F (40°C).
Corrosion discoloration, deposits or pitting may occur under product deposits or under gaskets. Keep surfaces clean,
including those under gaskets or in grooves or tight corners. Clean immediately after use. Do not allow equipment to set
idle, exposed to air with accumulated foreign material on the surface.
Corrosion pitting may occur when stray electrical currents come in contact with moist stainless steel. Ensure all electrical
devices connected to the equipment are correctly grounded.
Alloy 88
Waukesha Alloy 88 is the standard rotor material for Universal I, Universal II, Universal Lobe, Universal 420/520 and
5000 Series Rotary PD pumps. This alloy was developed specifically for corrosion resistance and close operating
clearance requirements of high performance rotary positive displacement pumps. Alloy 88 is a nickel based, corrosion-
resistant, non-galling or seizing material. The ASTM designation is A494 Grade CY5SnBiM (UNS N26055), and the
material is listed in the 3-A Sanitary Standards as acceptable for product contact surfaces.
The above properties make Alloy 88 the ideal material for Waukesha stainless steel PD pumps. The non-galling rotors
permit close operating clearances in the liquid end. This provides low slip and minimum shear damage. The rotors will not
gall or seize if they come in contact with the body or cover during operation.
The corrosion resistance of Alloy 88 is approximately equal to AISI 300 Series Stainless Steel. However, Alloy 88 has
limited resistance to certain aggressive chemicals that may be commonly used in contact with AISI 300 Series Stainless
Steel.
Do not use Alloy 88 in contact with nitric acid. Nitric acid is commonly used to passivate new installations of stainless
steel equipment. Do not allow nitric acid based passivation chemicals to contact Alloy 88 rotors. Remove the rotors
during passivation and use a separate pump to circulate the passivation chemicals. Also, if nitric acid-based CIP cleaning
chemicals are used, remove the rotors prior to CIP cleaning and clean them separately by hand in a mild detergent.
If you have questions regarding other aggressive chemicals, please contact Waukesha Cherry-Burrell Application
Engineering for assistance.
Elastomer Seal Replacement Following Passivation
Passivation chemicals can damage product contact areas of WCB equipment. Elastomers (rubber components) are most
likely to be affected. Always inspect all elastomer seals after passivation is completed. Replace any seals showing signs of
chemical attack. Indications may include swelling, cracks, loss of elasticity or any other noticeable changes when
compared with new components.

Waukesha Cherry-Burrell Introduction
Issued: January 2003 95-03074 Page 7
Revised: June 2005
Introduction
Manual Content
Maintenance procedures in this manual do not cover aseptic or high pressure pump applications. These are covered in
special addendums available from your Waukesha Cherry-Burrell representative.
Receiving Your Pump
All ports are covered at the factory to keep out foreign objects during transit. If covers are missing or damaged, remove
the pump cover for a thorough inspection of fluid head. Be sure pumping head is clean and free of foreign material before
rotating shaft.
Each Waukesha pump is shipped completely assembled, lubricated and ready for use. Review “Operation” on page 13
before operating your pump.
Figure 1 - Common Part Identification
1. Plug Inspection 8. Impeller 14. Cap Screws
2. O-Ring 9. O-ring 15. Lock Washers
3. Casing 10. Backplate 16. Motor Adapter
4. Impeller Retainer 11. Flat Washers 17. Seals (details shown on page 22)
5. Spring Nut (2065LR) /
Belleville Washer (2085LR) 12. Backplate Cap Screws 18. Key
6. Spacer Nut (2065LR) / 
Shim Washers (2085LR)
13. Clamp 22. Motor Shims
7. O-ring NOTE: Reorder information is available on page 24.

Introduction Waukesha Cherry-Burrell
Page 8 95-03074 Issued: January 2003
Revised: June 2005
Pump Characteristics
The 200LR (Liquid Ring) Self-Priming Pump handles products with entrained air as well as maintaining its prime when
other pumps become air bound. This feature makes the 200LR the best choice for complete emptying of tanks and lines
during normal process or cleaning-in-place (CIP).
In addition to being an excellent CIP return pump, the 200LR can run in either direction, making it possible to fill or
empty tanks with the same pump.
The 200LR Self-Priming Pump is built for extremely durable service. The casing, backplate and impeller/stub shaft are
316L stainless steel for extra strength and resistance to line shock and corrosion. Large bearings and shaft provide positive
alignment and minimize vibration.
The pump is available with two standard seal types:
• Type 1- Single mechanical seal, external mounted and balanced.
• Type 4 - Double mechanical seal with flush housing.
All seal components are interchangeable between models. All seal assemblies utilize an externally mounted balanced
rotary seal for longer seal life and better sealing capability. The stationary seal face is reversible and replaceable.
Performance Characteristics
Quality Control
Prior to shipment, each pump undergoes a performance
test for design flow rate and design pressure.
Standard Construction
• Casing: 316L Stainless Steel
• Port Connections: S-Line
• Backplate: 316L Stainless Steel
• Impeller W/Integral Shaft: 316L Stainless Steel
• Impeller Retainer: 316L Stainless Steel
• Shaft Seal: Single Mechanical, External Balanced
(Type 1)
• Rotary Seal Material: Carbon
• Stationary Seal: Siliconized Graphite
• Elastomers: FDA approved Viton®
• Finish: All product contact surfaces are 316L stainless
steel with 32Ra finish.
• Motor adapter: Stainless steel
• Mounting: JM Motor
Construction Options
Ports
• 2.5" S-line fittings
• Optional casing 1/2" or 1" drain with S-clamp
connection available.
Seal Type
• Single mechanical seal, external mounted and
balanced (Type 1 shaft seal)
• Double mechanical with flush (Type 4 shaft seal)
• WFI - special Type 4 shaft seal flush piping for water
used in injection applications
• Commercially available seals (Contact your WCB
representative for details.)
Rotary Seal Material
Purebide
Silicone Carbide
Tungsten Carbide
Stationary Seal
Silicone Carbide
Tungsten Carbide
Elastomers
EPDM (FDA approved)
Silicone (FDA approved)
Kalrez®
Finishes/Product Contact Surfaces
Electro-Polish (20Ra or 25Ra)
Leg Kit
“Motor Mounts” on page 26.
Motors
• NEMA JM (standard) totally enclosed fan cooled
(TEFC) for close-coupled pumps.
• 1750 3-phase 230/460 volt.
Enclosure Options
Washdown
Explosion-proof
Severe Duty/Chemical Duty
Operating Parameters
Nominal Capacity
Up to 180 U.S. GPM (40 Cubic Meters/Hr.)
Differential Pressure
Up to 195 Feet (60 Meters)
Nominal Speeds
1450 - 50HZ
1750 - 60HZ

Waukesha Cherry-Burrell Introduction
Issued: January 2003 95-03074 Page 9
Revised: June 2005
Dimensions
Figure 2 - Foot Print Dimensions
ITEM
DIMENSION FOR 2065LR
213JM AND 215JM MOTOR FRAME
DIMENSION FOR 2085LR
254JM AND 256JM MOTOR FRAME
IN MM IN MM
A 13.44 341 14.9 379
B 10.34 263 12 305
C 23.51 597 27.4 697
D 6.51 165 7.75 197
E 5.25 133 6.25 159
F 4.56 116 5.50 140
G 1.88 48 2.25 57
2G 3.76 95 4.50 114
H 8.50 216 10.0 254
K 8.37 213 8.9 227
L 5.38 137 6.5 165
M213JM = 5.5
215JM = 7.0
213JM = 140
215JM = 178
254JM = 8.25
256JM = 10.0
254JM = 209
256JM = 254
N 13.88 353 18.0 475
P 7.92 201 7.8 198
Q 10.18 259 11.5 292

Installation Waukesha Cherry-Burrell
Page 10 95-03074 January 2003
Installation
Special Requirements for Liquid Ring Self-Priming Pump
Liquid ring self-priming pumps are designed for applications with large amounts of entrained air. CIP return pump
applications involve intermittent flow from tank with air entering supply line. Suction lift applications evacuate air from
supply line lifting liquid into pump to begin pumping. Suction lift up to 23 feet (7 meters) is possible.
For pump to work correctly, casing first must be full of liquid. If casing is completely dry or has too little liquid, it will not
be able to self-prime and operate as intended. Correct installation piping helps ensure casing remains full of liquid and
ensures trouble-free operation. Installation piping may include:
•Vertical Discharge Piping: Ensures backflow into
casing for CIP return or similar applications. Install
vertical section of pipe no less than 3 feet (1 meter)
long in discharge piping (Figure 3).
•Foot or Check Valve in Suction Piping: For suction
lift applications not allowing vertical suction piping
(Figure 4), install foot or check valve to prevent
backflow and siphon effect from evacuating liquid in
casing.
•Vertical Suction Piping: For suction lift
applications, install vertical section of pipe no less
than 3 feet (1 meter) long in suction and discharge
piping. This will prevent backflow (due to siphon
effect) from evacuating liquid in casing (Figure 4).
•Leak-Free Suction Piping: Air leaks in suction
piping will reduce pump performance and may allow
air in faster than pump is able to pump it away. This is
especially important for suction lift applications
requiring long suction lift.
General Requirements
CAUTION: Pump and piping may contain sharp
edges. Wear gloves during installation and service
of pump to help avoid injuries from these hazards.
• Install pump near as practical to liquid supply.
• Install shutoff valves to isolate pump from supply and
discharge lines allowing pump service without
draining system.
• Keep supply piping short and straight to keep pump
supplied with liquid and prevent damaging cavitation.
• Use line size, particularly for inlet supply line, equal
to or larger than connection size on pump.
• Ensure joints in suction line are well sealed
preventing air leaks.
• Support supply and discharge piping near pump
preventing strain on pump casing.
• Install pipe anchor between joint and pump if
expansion joint is used.
• Allow easy access to pump for service and inspection
during operation.
• Ensure mounting structures are properly sized
supporting weight of pump.
• Consider local noise level regulations.
• Ensure pump motor type is suitable for environment
where pump is to be operated.
• Protect motor from flooding.
CAUTION: Pumps intended for use in hazardous
environments - eg., explosive, corrosive, etc. - must
use a motor with appropriate enclosure
characteristics. Failure to use an appropriate motor
type may result in serious damage and/or injury.
Figure 3 - Vertical Discharge
Figure 4 - Vertical Suction and Discharge

Waukesha Cherry-Burrell Installation
January 2003 95-03074 Page 11
Installation Safety Procedures
• Any system throttling valves or similar devices controlling flow rate must be installed in discharge line. Do not install
devices in supply line. Restriction in supply line may cause cavitation and pump damage.
• "Water hammer" in system can damage pump and other system components. Water hammer often occurs when
valves in system are suddenly closed causing lines to move violently and with a loud noise. When this condition is
present, find and eliminate source of water hammer. One way to eliminate water hammer is to slow down actuation
speed of valve.
• Do not expose pump to freezing temperatures with liquid in casing. Frozen liquid in casing will damage pump. Drain
casing before exposing to freezing temperatures.
Pump Leveling
Level pump by loosening set screws (Figure 5, item A) to
adjust length of legs.
Type 4 Seal Flush Supply Installation
Attach seal flush supply to bottom 1/4-inch pipe-threaded
hole in flush housing. Drain tubing attached to top hole
allowing continuous flooding and moderate pressure to be
supplied to seals. (Figure 6).
Electrical Connections
WARNING: To avoid electrocution, all electrical
installation should be done by a registered
electrician following Industry Safety Standards. All
power must be off and locked out during
installation.
• Read motor manufacturer's instructions before
making installation. Follow manufacturer's
lubrication schedules.
• Check motor nameplate to confirm motor is
compatible with all wiring, switches, starters and
electrical supply. Ensure overload protections are
correctly sized. (Figure 7).
Figure 5 - Set Screw Location
Figure 6 - Type 4 Flush Housing
Figure 7 - Replaceable Label Location

Installation Waukesha Cherry-Burrell
Page 12 95-03074 January 2003
Before First Startup
Cleaning Pump and Piping
Disassemble pump and clean all product contact parts and seal parts prior to first operation. Follow instructions in
“Cleaning Safety Procedures” on page 12 and “Scheduled Routine Maintenance” on page 14. The pump and piping
system should be thoroughly cleaned of any materials accumulated during installation. Do not use pump to clean system.
Check motor for proper rotation (looking at front of pump, motor should rotate counter-clockwise when discharge is on
right side, clockwise when discharge is on left side).
• Pump housing should be filled with liquid before startup.
• Maximum inlet pressure to the pump should not exceed 150 PSI.
• Available NPSH should be greater than or equal to the NPSH required by the pump.
Cleaning Safety Procedures
Manual Cleaning
DANGER: Never attempt cleaning equipment
while it is operating.
WARNING: To prevent an accidental startup,
power source should be locked out using lock
and key.
• Lock out electrical power and shut off all air prior to
cleaning equipment.
• Keep electrical panel covers closed and power off
when washing equipment.
• Do not use toxic and/or flammable solvents.
• Clean up spills as soon as possible.
• Wear proper protective clothing.
Cleaning-In-Place (CIP)
• Ensure all connections in cleaning circuit are properly
applied and tight to avoid contact with hot water or
cleaning solutions.
• Establish safe procedures to avoid automatic startup
while servicing equipment in circuit when cleaning
cycle is controlled from remote or automated cleaning
center.
Preliminary Test Run
Test system using a preliminary run with materials to be
pumped. During testing, DO NOT run pump to produce
final product.
See “Starting Pump” on page 13.
Ammeter Test
Temporarily install an ammeter in electrical service if
uncertain about pump selection and application.
WARNING: To avoid electrocution, ammeter
installation should be done by a registered
electrician.
Operate pump under process conditions and check motor
amp draw versus nameplate full load rating. If amp draw
exceeds motor rating, a system change or pump change is
required.
Recheck motor amp draw if liquid and/or process
conditions change (higher specific gravity, higher
viscosity).

Waukesha Cherry-Burrell Operation
January 2003 95-03074 Page 13
Operation
Before proceeding ensure pump has been correctly installed as described in “Installation” on page 10.
Starting Pump
1. Start flow of filtered flush water (recommended rate
is approximately 5 US gallons per hour) before
operating the pump if pump has flush seal option.
2. Start pump motor.
3. Check pump to verify liquid is flowing and all piping
connections and seals are leak free.
4. Ensure pump is not operating against a closed
discharge. Continued operation against a closed
discharge will heat liquid in casing to boiling and lead
to pump damage.
Stopping Pump
1. Shut off power to pump motor.
NOTE: Liquid in system can flow freely through pump;
pump does not act as a shutoff valve.
2. Shut off supply and discharge lines.

Maintenance Waukesha Cherry-Burrell
Page 14 95-03074 Issued: January 2003
Revised: June 2005
Maintenance
Scheduled Routine Maintenance
A scheduled routine maintenance program can extend life
of pump. Keep maintenance records to help pinpoint
potential problems and causes.
• Check for unusual noise, vibration and bearing
temperatures.
• Inspect pump and piping for leaks.
• Check mechanical seal area for leakage.
No leakage is desired.
• Check backplate gasket for wear/damage.
• Lubricate bearings. (See motor manufacturer for
correct specifications.)
• Analyze vibration.
• Check discharge pressure.
• Monitor temperature.
Disassembly of Pump
Tools Required
Soft-face hammer
3/4" socket wrench
3/4" open end wrench
1/8" allen wrench
1/2" open end wrench
1/4" allen wrench
7/16" open end wrench
Disassembly Procedure
1. Shut off product flow to pump and relieve any
product pressure.
2. Shut off and lockout power to pump.
3. Disconnect suction and discharge pipe fittings.
4. Remove bolts and washers connecting front cover to
backplate (Figure 8, item A).
Figure 8 - Remove Backplate Bolts

Waukesha Cherry-Burrell Maintenance
Issued: January 2003 95-03074 Page 15
Revised: June 2005
5. Remove front cover (Figure 9, item A) from pump.
Place front cover on a protected surface with ports up.
6. Remove backplate cover o-ring (Figure 10, item A).
7. Remove shims, belleville washers and impeller
retainer with o-ring (Figure 11, items A, B, D and C).
NOTE: Tap wrench handle with soft-face hammer to
loosen impeller retainer. It may be necessary to block
impeller with nylon dowel to assist in removing impeller
retainer.
8. Remove clamp securing backplate to motor adapter
(Figure 12, item A).
9. Pull impeller, backplate, and seal assembly from
motor shaft (Figure 13). Place assembly face down on
impeller vanes on a protected surface.
NOTE: Use a wheel puller if assembly cannot be removed
from motor shaft by hand.
CAUTION: Handle the impeller/backplate
assembly with care to prevent damage to seal
components.
For ”Type 1 Seal Disassembly‚" turn to page 16.
For ”Type 4 Seal Disassembly‚" turn to page 17.
Figure 9 - Remove Cover
Figure 10 - Remove Cover O-ring
Figure 11 - Remove Shims, Belleville Washers
and Impeller Retainer
Figure 12 - Remove Clamp
Figure 13 - Remove Impeller, Backplate
and Seal Assembly

Maintenance Waukesha Cherry-Burrell
Page 16 95-03074 Issued: January 2003
Revised: June 2005
Type 1 Seal Disassembly
1. Remove deflector (Figure 14, item B).
NOTE: Drive key and shims (Figure 14, item A) remain
on motor shaft. If impeller is replaced, add or remove
shims as necessary.
2. Loosen set screws (2) (Figure 14, item D) in spring
retainer (Figure 14, item C). Slide retainer and washer
(Figure 14, item F) off shaft. Save springs (3) (Figure
14, item E).
3. Use backplate to slide rotary seal up impeller shaft
approximately 1-1/2 inches (Figure 15).
4. With backplate resting on impeller, push rotary seal
toward backplate until o-ring is free (Figure 16).
5. Remove o-ring and lift rotary seal off shaft (Figure
14, item G and H).
CAUTION: To avoid seal failure, DO NOT place
fingers on seal face.
6. Lift backplate off impeller.
7. Remove four 1/4" hex bolts and stationary seal
retainer ring (Figure 17, items A and B).
8. Pull stationary seal and L-gasket out of backplate
(Figure 17, items C and D).
NOTE: The stationary seal is brittle. Prying or
hammering on seal plate can shatter seal. If stationary
seal cannot be removed by hand, place 2-1/4 inch
diameter plastic or wood rod on impeller side of seal and
apply even pressure to dislodge.
Figure 14 - Type 1 Seal Components
Figure 15 - Move Rotary Seal Up Shaft
Figure 16 - Push Rotary Seal Down Releasing O-ring
Figure 17 - Remove Stationary Seal

Waukesha Cherry-Burrell Maintenance
Issued: January 2003 95-03074 Page 17
Revised: June 2005
Type 4 Seal Disassembly
1. Remove cap screws from seal housing. (Figure 19,
item A).
2. Carefully lift off seat retainer, o-ring, L-gasket,
stationary seal and flush housing (Figure 18, items P,
R, T, S and U).
3. Loosen set screws (2) in spring retainer. (Figure 18,
items W and H).
4. Lift off rotating seal components:
Rotary Seal (Figure 18, item L)
O-ring (Figure 18, item F)
Washer (Figure 18, item K)
Spring Retainer (Figure 18, item H)
Springs (6 springs: 3 up, 3 down) (Figure 18, item J)
Washer (Figure 18, item G)
5. Use backplate to slide rotary seal up impeller shaft
approximately 1-1/2 inches (Figure 20).
6. With backplate resting on impeller, push rotary seal
toward backplate until o-ring is free (Figure 21).
7. Pull stationary seal and L-gasket out of backplate
(Figure 18, items C and D).
NOTE: The stationary seal is brittle. Prying or
hammering on seal plate can shatter seal. If stationary
seal cannot be removed by hand, place 2-1/4 inch
diameter plastic or wood rod on impeller side of seal and
apply even pressure to dislodge.
Inspecting Parts
• Examine all seal surfaces and replace scratched,
cracked and/or braised seals.
• Inspect all o-rings and o-ring seats for abrasions, cuts
or other wear potentially causing leakage.
• Clean all seal areas and alignment surfaces.
NOTE: Stationary seals are reversible. Use both sides
before replacing.
NOTE: Replace rotary seal when seal face extends less
than 1/32 inch (1mm) from body (Figure 22).
Figure 18 - Type 4 Seal Components
Figure 19 - Remove Screws from Housing
Figure 20 - Move Rotary Seal Up Shaft
Figure 21 - Push Rotary Seal Down Releasing O-ring
Figure 22 - Replace Rotary Seal if Less than Minimum

Maintenance Waukesha Cherry-Burrell
Page 18 95-03074 Issued: January 2003
Revised: June 2005
Assembly of Pump
Tools Required
Soft-face hammer
3/4" socket wrench
.020" feeler gage
3/4" open end wrench
1/8" allen wrench
1/2" open end wrench
1/4" allen wrench
7/16" open end wrench
Backplate Assembly
1. To determine number of shims needed to space
impeller from backplate while parts are in metal to
metal contact, hold impeller and backplate in place on
motor shaft and check shimming of impeller location
(Figure 24). If necessary, add or remove shims from
motor shaft so space between backplate and impeller
face is .020. When .020 clearance is achieved, clamp
backplate, assemble impeller retainer bolt and check
clearance again.
NOTE: Any axial movement of shaft should not be added
to .020 nominal clearance (Figure 24). If needed, change
clearance by adding or removing shims. Shims (Figure 25,
item A) are added on drive shaft (Figure 25, item C)
behind impeller shaft (Figure 25, item B). Clean all parts
and lubricate all elastomer (rubber-like) parts with
sanitary lubricant.
2. Remove impeller and backplate leaving shims on
motor shaft.
3. Clean all parts and lubricate all elastomer (rubber-
like) parts with sanitary lubricant.
4. Insert L-gasket (Figure 23, item D) into backplate seal
cavity.
5. Place stationary seal into L-gasket. (Figure 23, item C
and D).
6. Place seat retainer over stationary seal and secure
retainer with four 1/4-20 x 1/2 inch hex head cap
screws. (Figure 23, item B and A).
7. Tighten cap screws evenly.
8. Place impeller shaft end up on a clean flat surface and
slide assembled backplate onto impeller shaft.
NOTE: Avoid hitting stationary seal against impeller
shaft to prevent seal from breaking.
CAUTION: Handle impeller/backplate assembly
with care to prevent damaging seal components.
For ”Type 1 Seal Assembly‚" turn to page 19, column I.
For ”Type 4 Seal Assembly‚" turn to page 19, column II.
Figure 23 - Stationary Seal Assembly
Figure 24 - Clearance Between Impeller and Backplate
Figure 25 - Shims Locations

Waukesha Cherry-Burrell Maintenance
Issued: January 2003 95-03074 Page 19
Revised: June 2005
Type 1 Seal Assembly
1. Carefully place rotary seal in position over impeller
shaft and down against stationary seal.
2. Lubricate and slide seal assembly o-ring onto impeller
shaft. (Use the spring retainer as a tool to push o-ring
into rotary seal.) (Figure 27).
3. Slide tabbed washer (Figure 26, item F) over impeller
shaft and engage tabs of washer into notches on
outside of rotary seal. (Figure 26, item F and H).
4. Install three seal springs into holes in spring retainer
(Figure 26, item C and E). Hold springs in place with
RTV silicone sealant.
5. Slide spring retainer over impeller shaft until slots in
spring retainer engage drive tabs on washer and
springs rest against washer (Figure 26).
6. With backplate against impeller, push spring retainer
down to compress springs until length of visible
spring is approximately 1/8".
7. Lock spring retainer in place by tightening set screws
(2) (Figure 26, item D).
8. Install deflector onto impeller shaft (Figure 26, item B).
To conclude assembly, turn to page 20,
”Backplate Assembly”.
Type 4 Seal Assembly
1. Install L-gasket in backplate (Figure 28, items B and
C) and seat retainer. (Figure 28, item T).
2. Install stationary seals (Figure 28, item S) in L-
gaskets.
3. Place backplate and rotary seal onto impeller shaft.
4. Temporarily place .020" shims 180 degrees apart
between impeller and backplate to preset clearance.
Remove shims before final assembly. (Figure 29).
Figure 26 - Type 1 Seal Components
Figure 27 - Install O-ring Using Spring Retainer.
Figure 28 - Type 4 Seal Components
Figure 29 - Place Shims Between Impeller and Backplate

Maintenance Waukesha Cherry-Burrell
Page 20 95-03074 Issued: January 2003
Revised: June 2005
5. Slide o-ring (Figure 28, item F) onto shaft and use
spring retainer to push o-ring into rotary seal (Figure
30).
6. Place washer (Figure 28, item G) over rotary seal with
tabs in outside diameter notches.
7. Place three springs (Figure 28, item J) in one side of
spring retainer holding them in place with silicone
sealer. With springs down slide spring retainer onto
impeller shaft against washer.
8. Place remaining three springs in spring retainer.
9. Slide washer and o-ring (Figure 28, items K and F)
onto shaft against spring retainer. Use spring retainer
to push o-ring into rotary seal.
10. Remove 1/4 NPT plug from center port on flush
housing (Figure 28, item N).
11. Install o-rings (Figure 28, items R and M) in both
ends of housing.
12. Install L-gasket in seat retainer. (Figure 28, items T
and U).
13. Install stationary seal (Figure 28, item S) in L-gasket.
14. Install housing over seal assembly.
15. With flush ports facing away from the backplate place
seat retainer (Figure 28, item T) on housing.
16. Tighten seat retainer in place using four hex screws
(Figure 28, item V).
NOTE: Tighten screws evenly until full metal to metal
contact is made on backplate and seat retainer.
17. Tighten set screws in spring retainer through 1/4"
NPT center port in flush housing (Figure 28, item N).
Insert plug and tighten.
Backplate Assembly
1. Install o-ring in front shims on motor shaft.
2. Apply anti-seize or equal compound to motor shaft
and install key.
3. Install backplate with seal assembly and impeller on
motor shaft.
4. Position backplate onto adapter with flat surface area
above groove. Top mounting screw will be at 12
o'clock position.
5. Install clamp and position bolt/nut connection at 7
o'clock allowing easy access to front cover bolts.
(Figure 31).
6. 2065LR: Assemble spring washers in series, as
shown in . Tighten impeller nut.
Figure 30 - Install O-ring Using Spring Retainer.
Figure 31 - Clamp Impeller/Backplate to Motor Adapter
Figure 32 - 2065LR Impeller Retainer Shimming

Waukesha Cherry-Burrell Maintenance
Issued: January 2003 95-03074 Page 21
Revised: June 2005
2085LR: If end of shaft is not flush with impeller
counter bore, add .015 shim washers (Figure 34, item
A) to end of shaft (Figure 33). 
Assemble three belleville washers to impeller retainer
with o-ring (Figure 34, item B, D and C) with curved
surfaces opposed to each other. Tighten impeller
retainer to bottom out metal-to-metal.
7. Install backplate cover o-ring. (Figure 35, item A).
8. Install front cover (Figure 36, item A) on backplate
with ports above center of pump.
9. Install bolts and washers connecting front cover to
backplate (Figure 37).
10. Remove impeller inspection plug and confirm
operating clearances by manually rotating shaft/
impeller ensuring impeller does not touch casing or
backplate.
11. Reinstall impeller inspection plug.
Figure 33 - 2085LR Impeller Retainer Shimming
Figure 34 - Install Shims, Belleville Washers
and Impeller Retainer with O-Ring
Figure 35 - Install Backplate Cover O-ring
Figure 36 - Install Front Cover
Figure 37 - Install Backplate Bolts