Page 1
Installation,
Operation, and
Maintenance Manual
Series 580
Page 2
Page 3
Table of Contents
Introduction and Safety.........................................................................................................................2
Introduction..........................................................................................................................................2
Inspect the package.........................................................................................................................2
Inspect the unit..................................................................................................................................2
Product warranty...............................................................................................................................2
Safety.....................................................................................................................................................3
Safety message levels......................................................................................................................3
Safety instruction decals..................................................................................................................4
User safety.........................................................................................................................................5
Environmental safety........................................................................................................................6
Transportation and Storage..................................................................................................................8
Pump lifting..........................................................................................................................................8
Long-term storage...............................................................................................................................8
Product Description...............................................................................................................................9
General description............................................................................................................................9
Operational specifications.................................................................................................................9
Table of Contents
Installation.............................................................................................................................................11
Preinstallation....................................................................................................................................11
Pump location guidelines..............................................................................................................11
Piping checklist...............................................................................................................................12
Commissioning, Startup, Operation, and Shutdown......................................................................14
Preparation for startup.....................................................................................................................14
Check the rotation..........................................................................................................................14
Prime the pump.................................................................................................................................15
Start the pump...................................................................................................................................15
Pump operation precautions...........................................................................................................16
Shut down the pump........................................................................................................................16
Maintenance.........................................................................................................................................17
Lubrication.........................................................................................................................................17
Disassembly.......................................................................................................................................17
Disassembly precautions...............................................................................................................17
Drain the pump...............................................................................................................................17
Remove the pump assembly.........................................................................................................17
Remove the impeller......................................................................................................................18
Remove the mechanical seal (580 and 580-F) ...........................................................................18
Pre-assembly inspections.................................................................................................................18
Replacement guidelines................................................................................................................18
Shaft and sleeve inspection..........................................................................................................19
Reassembly........................................................................................................................................19
Assemble the standard mechanical seal (580 and 580-F) .......................................................19
Install the impeller..........................................................................................................................20
Reinstall the pump assembly........................................................................................................20
Screw torque values.......................................................................................................................20
Dealer servicing .............................................................................................................................20
Series 580 Installation, Operation, and Maintenance Manual 1
Page 4
Introduction and Safety
Introduction and Safety
Introduction
Purpose of this manual
The purpose of this manual is to provide necessary information for:
• Installation
• Operation
• Maintenance
CAUTION:
Read this manual carefully before installing and using the product. Improper use of the
product can cause personal injury and damage to property, and may void the warranty.
NOTICE:
Save this manual for future reference, and keep it readily available at the location of the
unit.
Inspect the package
1. Inspect the package for damaged or missing items upon delivery.
2. Note any damaged or missing items on the receipt and freight bill.
3. File a claim with the shipping company if anything is out of order.
Inspect the unit
1. Remove packing materials from the product.
2. Inspect the product to determine if any parts have been damaged or are missing.
3. If applicable, unfasten the product by removing any screws, bolts, or straps.
4. Contact your sales representative if anything is out of order.
Product warranty
Coverage
Xylem undertakes to remedy faults in products from Xylem under these conditions:
• The faults are due to defects in design, materials, or workmanship.
• The faults are reported to an Xylem representative within the warranty period.
• The product is used only under the conditions described in this manual.
• The monitoring equipment incorporated in the product is correctly connected and in
• All service and repair work is done by Xylem-authorized personnel.
• Genuine Xylem parts are used.
• Only Ex-approved spare parts and accessories authorized by Xylem are used in Ex-
If the product has been picked up at a distributor, make a claim directly to the
distributor.
Dispose of all packing materials in accordance with local regulations.
For your personal safety, be careful when you handle nails and straps.
use.
approved products.
2 Series 580 Installation, Operation, and Maintenance Manual
Page 5
Limitations
Warranty claim
Safety
Introduction and Safety
The warranty does not cover faults caused by these situations:
• Deficient maintenance
• Improper installation
• Modifications or changes to the product and installation made without consulting
Xylem
• Incorrectly executed repair work
• Normal wear and tear
Xylem assumes no liability for these situations:
• Bodily injuries
• Material damages
• Economic losses
Xylem products are high-quality products with expected reliable operation and long life.
However, should the need arise for a warranty claim, then contact your Xylem
representative.
WARNING:
• The operator must be aware of safety precautions to prevent physical injury.
• Any pressure-containing device can explode, rupture, or discharge its contents if it is
over-pressurized. Take all necessary measures to avoid over-pressurization.
• Operating, installing, or maintaining the unit in any way that is not covered in this manual
could cause death, serious personal injury, or damage to the equipment. This includes
any modification to the equipment or use of parts not provided by Xylem. If there is a
question regarding the intended use of the equipment, please contact an Xylem
representative before proceeding.
• This manual clearly identifies accepted methods for disassembling units. These methods
must be adhered to. Trapped liquid can rapidly expand and result in a violent explosion
and injury. Never apply heat to impellers, propellers, or their retaining devices to aid in
their removal.
• Do not change the service application without the approval of an authorized Xylem
representative.
CAUTION:
You must observe the instructions contained in this manual. Failure to do so could result in
physical injury, damage, or delays.
Safety message levels
About safety messages
It is extremely important that you read, understand, and follow the safety messages and
regulations carefully before handling the product. They are published to help prevent
these hazards:
• Personal accidents and health problems
• Damage to the product
• Product malfunction
Series 580 Installation, Operation, and Maintenance Manual 3
Page 6
Introduction and Safety
Definitions
Safety message level Indication
NOTICE:
DANGER:
WARNING:
CAUTION:
Electrical Hazard:
A hazardous situation which, if not avoided, will result in
death or serious injury
A hazardous situation which, if not avoided, could result
in death or serious injury
A hazardous situation which, if not avoided, could result
in minor or moderate injury
The possibility of electrical risks if instructions are not
followed in a proper manner
• A potential situation which, if not avoided, could
result in undesirable conditions
• A practice not related to personal injury
Safety instruction decals
WARNING:
The maximum working pressure of the pump is listed on the nameplate. Do not exceed
this pressure. Failure to follow these instructions can result in serious personal injury,
death, and/or property damage.
Alert symbol
This safety alert symbol is used in manuals and on the safety instruction decals on the pump
to draw attention to safety-related instructions.
When used, the safety alert symbol means that failure to follow the instructions may result in
a safety hazard.
4 Series 580 Installation, Operation, and Maintenance Manual
Page 7
Decals
P70643
P70644
P70642
Introduction and Safety
Make sure your pump has these safety instruction decals and that they are located as this
figure shows. If the decals are missing or illegible, contact your local Xylem representative
for a replacement.
Make sure that all safety instruction decals are always clearly visible and readable.
User safety
General safety rules
These safety rules apply:
• Always keep the work area clean.
• Pay attention to the risks presented by gas and vapors in the work area.
• Avoid all electrical dangers. Pay attention to the risks of electric shock or arc flash
hazards.
• Always bear in mind the risk of drowning, electrical accidents, and burn injuries.
Safety equipment
Use safety equipment according to the company regulations. Use this safety equipment
within the work area:
• Hard hat
• Safety goggles, preferably with side shields
Series 580 Installation, Operation, and Maintenance Manual 5
• Protective shoes
Page 8
Introduction and Safety
• Protective gloves
• Gas mask
• Hearing protection
• First-aid kit
• Safety devices
Electrical connections
Electrical connections must be made by certified electricians in compliance with all
international, national, state, and local regulations. For more information about
requirements, see sections dealing specifically with electrical connections.
Precautions before work
Observe these safety precautions before you work with the product or are in connection
with the product:
• Provide a suitable barrier around the work area, for example, a guard rail.
• Make sure that all safety guards are in place and secure.
• Make sure that you have a clear path of retreat.
• Make sure that the product cannot roll or fall over and injure people or damage
• Make sure that the lifting equipment is in good condition.
• Use a lifting harness, a safety line, and a breathing device as required.
• Allow all system and pump components to cool before you handle them.
• Make sure that the product has been thoroughly cleaned.
• Disconnect and lock out power before you service the pump.
• Check the explosion risk before you weld or use electric hand tools.
NOTICE:
Never operate a unit unless safety devices are installed. Also see specific information
about safety devices in other chapters of this manual.
property.
Wash the skin and eyes
Follow these procedures for chemicals or hazardous fluids that have come into contact
with your eyes or your skin:
Condition Action
Chemicals or hazardous
fluids in eyes
Chemicals or hazardous
fluids on skin
Environmental safety
The work area
Always keep the station clean to avoid and/or discover emissions.
Waste and emissions regulations
Observe these safety regulations regarding waste and emissions:
• Appropriately dispose of all waste.
• Handle and dispose of the processed liquid in compliance with applicable
environmental regulations.
1. Hold your eyelids apart forcibly with your fingers.
2. Rinse the eyes with eyewash or running water for at least 15 minutes.
3. Seek medical attention.
1. Remove contaminated clothing.
2. Wash the skin with soap and water for at least 1 minute.
3. Seek medical attention, if necessary.
6 Series 580 Installation, Operation, and Maintenance Manual
Page 9
Electrical installation
Introduction and Safety
• Clean up all spills in accordance with safety and environmental procedures.
• Report all environmental emissions to the appropriate authorities.
WARNING:
Do NOT send the product to the Xylem manufacturer if it has been contaminated by any
nuclear radiation. Inform Xylem so that accurate actions can take place.
For electrical installation recycling requirements, consult your local electric utility.
Series 580 Installation, Operation, and Maintenance Manual 7
Page 10
Transportation and Storage
Transportation and Storage
Pump lifting
WARNING:
• Assembled units and their components are heavy. Failure to properly lift and support
this equipment can result in serious physical injury and/or equipment damage. Lift
equipment only at the specifically identified lifting points. Lifting devices such as
eyebolts, slings, and spreaders must be rated, selected, and used for the entire load
being lifted.
• Crush hazard. The unit and the components can be heavy. Use proper lifting methods
and wear steel-toed shoes at all times.
In order to lift the entire pump, use slings placed around the unit as shown.
Figure 1: Proper lifting method
Long-term storage
If the unit is stored for more than 6 months, these requirements apply:
• Store in a covered and dry location.
• Store the unit free from heat, dirt, and vibrations.
• Rotate the shaft by hand several times at least every three months.
Treat bearing and machined surfaces so that they are well preserved. Refer to the drive
unit and coupling manufacturers for their long-term storage procedures.
For questions about possible long-term storage treatment services, please contact your
local Xylem sales representative.
8 Series 580 Installation, Operation, and Maintenance Manual
Page 11
Product Description
General description
The pump is a centrifugal, close-coupled pump. These features make the pump easy to
install, operate, and service:
• High efficiency
• Rugged bronze-fitted construction
• Horizontal or vertical in-line mounting
Intended applications
WARNING:
California Proposition 65 warning! This product contains chemicals known to the state of
California to cause cancer and birth defects or other reproductive harm.
NOTICE:
This product is not intended for potable water applications.
Product Description
The pump is intended for use with these pumped fluids:
• Unheated domestic and fresh water
• Boiler feed water
• Condensate
• Hydronic cooling or heating
• Benign liquids
• Pressure boosting
• General liquid transfer
• Pool water with a chlorine level equal or less than 2 ppm
Rotation
Pump rotation is clockwise when viewed from the back of the motor. An arrow is also
located on the pump to show the direction of rotation.
Operational specifications
Mechanical seal specifications
This table describes the specifications of each mechanical seal type.
Seal type Parameter Value
Standard seals, BUNA
Standard seals, EPT
5
5
pH range limits for BUNA pH 7–9
Liquid temperature range that
complies with the pH range limits for
BUNA
pH range limits for EPT pH 7–11
-20˚F to 225˚F (-29˚C to 107˚C)
Liquid temperature range that
complies with the pH range limits for
EPT
Series 580 Installation, Operation, and Maintenance Manual 9
-20˚F to 250˚F (-29˚C to 121˚C)
Page 12
Product Description
Seal type Parameter Value
Flushed single seals
1,3,4,
pH range limits pH 7–9
Liquid temperature range
0˚F to 250˚F (-18˚C to 121˚C)
Table notes
1. An external flush is required on low pressure systems that contain a high
concentration of abrasives.
2. For operating temperatures above 250°F, a cooled flush is required and is
recommended for temperatures above 225°F for optimum seal life. On closed
systems, cooling is accomplished by inserting a small heat exchanger in the flush line
to cool the seal flushing fluid.
3. Flush-line filters and sediment separators are available on request.
4. Use a standard seal on closed or open systems that are relatively free of dirt and/or
other abrasive particles.
10 Series 580 Installation, Operation, and Maintenance Manual
Page 13
Installation
Preinstallation
Precautions
WARNING:
• When installing in a potentially explosive environment, make sure that the motor is
properly certified.
• You must earth (ground) all electrical equipment. This applies to the pump equipment,
the driver, and any monitoring equipment. Test the earth (ground) lead to verify that it is
connected correctly.
• Motors without built-in protection must be provided with contactors and thermal
overload protection for single-phase motors, or starters with heaters for three-phase
motors. (See the nameplate on the drive unit to select properly-sized overloads.)
NOTICE: Supervision by an authorized Xylem representative is recommended to ensure
proper installation. Failure to do so may result in equipment damage or decreased
performance.
Installation
Evaluate the installation in order to determine that the Net Positive Suction Head Available
(NPSHA) meets or exceeds the Net Positive Suction Head Required (NPSHR), as stated by
the pump performance curve.
Pump location guidelines
WARNING:
Assembled units and their components are heavy. Failure to properly lift and support this
equipment can result in serious physical injury and/or equipment damage. Lift equipment
only at the specifically identified lifting points. Lifting devices such as eyebolts, slings, and
spreaders must be rated, selected, and used for the entire load being lifted.
Guideline Explanation/comment
Keep the pump as close to the liquid source as
practically possible.
If the pump is not on a closed system, locate the pump
so that the fewest number of bends or elbows in the
suction pipe are needed.
Make sure that the space around the pump is sufficient. This facilitates ventilation, inspection, maintenance, and
If you require lifting equipment such as a hoist or tackle,
make sure that there is enough space above the pump.
This minimizes the friction loss and keeps the suction
piping as short as possible.
service.
This makes it easier to properly use the lifting
equipment and safely remove and relocate the
components to a safe location.
Protect the unit from weather and water damage due to
rain, flooding, and freezing temperatures.
Do not install and operate the equipment in closed
systems unless the system is constructed with properlysized safety devices and control devices.
Series 580 Installation, Operation, and Maintenance Manual 11
This is applicable if nothing else is specified.
Acceptable devices:
• Pressure relief valves
• Compression tanks
• Pressure controls
Page 14
Installation
Guideline Explanation/comment
• Temperature controls
• Flow controls
If the system does not include these devices, consult the
engineer or architect in charge before you operate the
pump.
Piping checklist
Take into consideration the occurrence of unwanted
noise and vibration.
If the pump location is overhead, undertake special
precautions to reduce possible noise transmission.
WARNING:
• The heating of water and other fluids causes volumetric expansion. The associated forces
can cause the failure of system components and the release of high-temperature fluids.
In order to prevent this, install properly sized and located compression tanks and
pressure-relief valves. Failure to follow these instructions can result in serious personal
injury or death, or property damage.
• Avoid serious personal injury and property damage. Make sure that the flange bolts are
adequately torqued.
• Never force piping to make a connection with a pump.
Check Explanation/comment Checked
Check that a section of straight pipe, with a length that
is five times its diameter, is installed between the
suction side of the pump and the first elbow, or that a
suction diffuser is installed.
The best pump location for noise and vibration
absorption is on a concrete floor with subsoil
underneath.
Consider a consultation with a noise specialist.
This reduces suction turbulence by
straightening the flow of liquid before it enters
the pump.
Check that the suction and discharge pipes are
supported independently by use of pipe hangers near
the pump .
Check that there is a strong, rigid support for the
suction and discharge lines.
For pumps with flanges, check that the bolt holes in
the pump flanges match the bolt holes in the pipe
flanges.
For pumps mounted in vertical piping with the motor
in the horizontal position, check that adequate
support is provided.
Check that the suction or discharge lines are not
forced into position.
Check that fittings for absorbing expansion are
installed in the system when considerable
temperature changes are expected.
This eliminates pipe strain on the pump .
As a rule, ordinary wire or band hangers are not
adequate to maintain proper alignment.
—
This prevents strain on the pump parts and
piping. Do not mount the pump with the motor
vertically downward. Do not use motor lift rings
to suspend the pump.
Coupling and bearing wear will result if suction
or discharge lines are forced into position.
The code for Pressure Piping (A.S.A.B. 31.1)
lists many types of supports available for
various applications.
This helps to avoid strain on the pump.
12 Series 580 Installation, Operation, and Maintenance Manual
Page 15
Installation
Check Explanation/comment Checked
Check that you have a foot valve of equal or greater
area than the pump suction piping when you use an
open system with a suction lift.
Prevent clogging by using a strainer at the
suction inlet next to the foot valve. Make sure
that the strainer has an area three times that of
the suction pipe with a mesh hole diameter of
no less than 0.25 in. (0.64 cm).
Check that flexible piping is used on both the suction
and discharge sides of the pump when you use an
isolation base.
Check that a properly sized suction strainer
conforming to NSF/ANSI Standard 50 is installed in
the suction line.
Check that the pipeline has isolation valves around
the pump and has a drain valve in the suction pipe.
Use Teflon tape sealer or a high quality thread sealant
when you install the suction and discharge
connections to a threaded pump housing.
—
Prevents clogging. Make sure the strainer has
an area three times that of the suction pipe
with a mesh hole diameter of no less than 0.25
in. (0.64 cm).
—
—
Series 580 Installation, Operation, and Maintenance Manual 13
Page 16
Commissioning, Startup, Operation, and Shutdown
Commissioning, Startup, Operation,
and Shutdown
Preparation for startup
WARNING:
• Failure to follow these precautions before you start the unit will lead to serious personal
injury and equipment failure.
• Do not operate the pump below the minimum rated flows or with the suction or
discharge valves closed. These conditions can create an explosive hazard due to
vaporization of pumped fluid and can quickly lead to pump failure and physical injury.
• If the pump, motor, or piping operate at extremely high or low temperatures, then
guarding or insulation is required. Failure to follow these instructions can result in
serious personal injury or death, and property damage.
• Always disconnect and lock out power to the driver before you perform any installation
or maintenance tasks. Failure to disconnect and lock out driver power will result in
serious physical injury.
• Operating the pump in reverse rotation can result in the contact of metal parts, heat
generation, and breach of containment.
Precautions
NOTICE:
You must follow these precautions before you start the pump:
At initial startup, do not adjust the variable-speed drivers or check for speed governor or
over-speed trip settings while the variable-speed driver is coupled to the pump. If the
settings have not been verified, then uncouple the unit and refer to instructions supplied
by the driver manufacturer.
Check the rotation
WARNING:
• Operating the pump in reverse rotation can result in the contact of metal parts, heat
• Always disconnect and lock out power to the driver before you perform any installation
• Verify the driver settings before you start any pump.
• Make sure that the warm-up rate does not exceed 2.5°F (1.4°C) per minute.
• Flush and clean the system thoroughly to remove dirt or debris in the pipe system in
order to prevent premature failure at initial startup.
• Bring variable-speed drivers to the rated speed as quickly as possible.
• Run a new or rebuilt pump at a speed that provides enough flow to flush and cool the
close-running surfaces of the stuffing-box bushing.
• If temperatures of the pumped fluid will exceed 200°F (93°C), then warm up the pump
prior to operation. Circulate a small amount of fluid through the pump until the casing
temperature is within 100°F (38°C) of the fluid temperature.
generation, and breach of containment.
or maintenance tasks. Failure to disconnect and lock out driver power will result in
serious physical injury.
1. Unlock power to the driver.
14 Series 580 Installation, Operation, and Maintenance Manual
Page 17
2. Make sure that everyone is clear, and then jog the driver long enough to determine
that the direction of rotation corresponds to the arrow on the pump.
3. Lock out power to the driver.
Prime the pump
CAUTION:
Do not run the pump dry.
Make sure that the pump body is full of liquid before startup. If the system does not
automatically fill the pump body with liquid, then you must manually prime the pump.
1. Loosen the vent plugs on the pump body.
2. While venting the air from the pump body, rotate the pump shaft a few times by hand.
3. After all air has been purged from the pump, close the vent plugs.
Start the pump
CAUTION:
• Observe the pump for vibration levels, bearing temperature, and excessive noise. If
normal levels are exceeded, shut down the pump and resolve the issue.
Commissioning, Startup, Operation, and Shutdown
Before you start the pump, you must perform these tasks:
• Open the suction valve.
• Open any recirculation or cooling lines.
1. Fully close or partially open the discharge valve, depending on system conditions.
2. Start the driver.
3. Slowly open the discharge valve until the pump reaches the desired flow.
4. Immediately check the pressure gauge to ensure that the pump quickly reaches the
correct discharge pressure.
5. If the pump fails to reach the correct pressure, perform these steps:
a) Stop the driver.
b) Prime the pump again.
c) Restart the driver.
6. Monitor the pump while it is operating:
a) Check the pump for bearing temperature, excessive vibration, and noise.
b) If the pump exceeds normal levels, then shut down the pump immediately and
correct the problem.
7. Repeat steps 5 and 6 until the pump runs properly.
Series 580 Installation, Operation, and Maintenance Manual 15
Page 18
Commissioning, Startup, Operation, and Shutdown
Pump operation precautions
General considerations
CAUTION:
• Vary the capacity with the regulating valve in the discharge line. Never throttle the flow
from the suction side since this can result in decreased performance, unexpected heat
generation, and equipment damage.
• Do not overload the driver. Driver overload can result in unexpected heat generation
and equipment damage. The driver can overload in these circumstances:
• The specific gravity of the pumped fluid is greater than expected.
• The pumped fluid exceeds the rated flow rate.
• Make sure to operate the pump at or near the rated conditions. Failure to do so can
result in pump damage from cavitation or recirculation.
Operation at reduced capacity
WARNING:
Never operate any pumping system with a blocked suction and discharge. Operation,
even for a brief period under these conditions, can cause confined pumped fluid to
overheat, which results in a violent explosion. You must take all necessary measures to
avoid this condition.
CAUTION:
• Avoid excessive vibration levels. Excessive vibration levels can damage the bearings,
stuffing box or seal chamber, and the mechanical seal, which can result in decreased
performance.
• Avoid increased radial load. Failure to do so can cause stress on the shaft and bearings.
• Avoid heat build-up. Failure to do so can cause rotating parts to score or seize.
• Avoid cavitation. Failure to do so can cause damage to the internal surfaces of the pump.
Operation under freezing conditions
NOTICE:
Do not expose an idle pump to freezing conditions. Drain all liquid that is inside the pump
and the flush lines. Failure to do so can cause liquid to freeze and damage the pump.
Shut down the pump
1. Slowly close the discharge valve.
2. Shut down and lock the driver to prevent accidental rotation.
16 Series 580 Installation, Operation, and Maintenance Manual
Page 19
Maintenance
Lubrication
The pump motor has been lubricated at the factory. Keep the motor properly lubricated in
accordance with the motor manufacturer's instructions.
Disassembly
Disassembly precautions
WARNING:
• This manual clearly identifies accepted methods for disassembling units. These methods
must be adhered to. Trapped liquid can rapidly expand and result in a violent explosion
and injury. Never apply heat to impellers, propellers, or their retaining devices to aid in
their removal.
•
• Always disconnect and lock out power to the driver before you perform any installation
or maintenance tasks. Failure to disconnect and lock out driver power will result in
serious physical injury.
• Crush hazard. The unit and the components can be heavy. Use proper lifting methods
and wear steel-toed shoes at all times.
Maintenance
Drain the pump
NOTICE:
Make sure that all replacement parts are available before you disassemble the pump for
overhaul.
CAUTION:
• Allow all system and pump components to cool before you handle them to prevent
physical injury.
1. Close the isolation valves on the suction and discharge sides of the pump.
You must drain the system if no valves are installed.
2. Open the drain valve.
Do not proceed until liquid stops coming out of the drain valve. If liquid continues to
flow from the drain valve, the isolation valves are not sealing properly and you must
repair them before you proceed.
3. Leave the drain valve open and remove the drain plug located on the bottom of the
pump housing.
Do not reinstall the plug or close the drain valve until the reassembly is complete.
4. Drain the liquid from the piping and flush the pump if it is necessary.
5. Disconnect all auxiliary piping and tubing.
Remove the pump assembly
1. Loosen the volute capscrews but do not remove them.
2. Use the capscrews in the jackscrew holes in order to loosen the pump assembly from
the volute.
Series 580 Installation, Operation, and Maintenance Manual 17
Page 20
Maintenance
3. Remove the seal flushing tube if it is used.
4. Remove the volute capscrews.
5. Remove the pump assembly from the volute.
Remove the impeller
WARNING:
Never apply heat to remove an impeller. The use of heat may cause an explosion due to
trapped liquid, resulting in severe physical injury and property damage.
CAUTION:
Wear heavy work gloves when you handle impellers. The sharp edges can cause physical
injury.
1. Remove the impeller capscrew.
2. Remove the lockwasher and the washer.
3. Remove the impeller.
WARNING:
Pressurized device. Make sure that the internal pressure is relieved
before you continue.
Remove the mechanical seal (580 and 580-F)
1. Remove the rotating portion of the seal.
If necessary, use a screwdriver to loosen the rubber ring.
2. Remove the seal insert, the insert gasket, and the retainer if it is used.
Pre-assembly inspections
Guidelines
Before you assemble the pump parts, make sure you follow these guidelines:
• Inspect the pump parts according to the information in these pre-assembly topics
before you reassemble your pump. Replace any part that does not meet the required
criteria.
• Make sure that the parts are clean. Clean the pump parts in solvent in order to remove
oil, grease, and dirt.
NOTICE: Protect machined surfaces while you clean the parts. Failure to do so may
result in equipment damage.
Replacement guidelines
Impeller replacement
This table shows the criteria for replacing the impeller:
Impeller parts When to replace
Impeller vanes
Vane edges When you see cracks, pitting, or corrosion damage
18 Series 580 Installation, Operation, and Maintenance Manual
• When grooved deeper than 1/16 in. (1.6 mm), or
• When worn evenly more than 1/32 in. (0.8 mm)
Page 21
Gaskets, O-rings, and seats replacement
1
2
3
4
5
6
7
8
9
10
11
12
13
• Replace all gaskets and O-rings at each overhaul and disassembly.
• Inspect the seats. They must be smooth and free of physical defects.
• Replace parts if the seats are defective.
Shaft and sleeve inspection
Inspection criteria
Inspect the shaft and sleeve according to this criteria:
• Thoroughly clean the shaft and sleeve.
• Thoroughly clean the coverplate seal cavity.
• Inspect the surface for damage such as pitting, corrosion, nicks, and scratches.
Replace these parts if they are damaged.
Reassembly
Assemble the standard mechanical seal (580 and 580-F)
1. Lubricate the shaft sleeve and coverplate seal cavity with soapy water.
Do not use a petroleum lubricant.
2. Install a new insert gasket.
3. Install a new seal insert and make sure that the indentation is against the insert gasket.
4. Slide a new rotating seal assembly onto the shaft sleeve.
5. Push the top of the compression ring with a screwdriver until the seal is tight against
the seal insert.
6. Install the seal spring and point the narrow end toward the seal.
Maintenance
1. Slinger
2. Bracket coverplate
3. Seal assembly
4. Impeller key
5. Volute capscrew
6. Impeller
7. Impeller lockwasher
8. Volute
9. Impeller capscrew
Series 580 Installation, Operation, and Maintenance Manual 19
Page 22
Maintenance
10. Volute gasket
11. Impeller washer
12. Shaft sleeve
13. Shaft
Figure 2: Standard mechanical seal
Install the impeller
1. Install the impeller, impeller washer, lockwasher, and capscrew.
2. Tighten the capscrew according to the Capscrew torque values table.
Reinstall the pump assembly
1. Install a new volute gasket.
2. Install the pump assembly into the volute.
3. Tighten the volute capscrews according to the Capscrew torque table.
4. Install a seal flushing tube if it is used.
5. Install the drain plug and close the drain valve.
6. Open the isolation valves and inspect the pump for leaks.
7. Return the pump to service if it is not leaking.
Screw torque values
Capscrew torque in ft-lb (Nm)
Capscrew
type
Head
marking
1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1
Capscrew diameter (in inches)
SAE grade
2
Brass and
or 4 (5) 10 (14) 17 (23) 27 (37) 42 (57) 83 (113) 130 (176) 200 (271) 300 (407)
stainless
steel
SAE grade
5
Dealer servicing
6 (8) 13 (18) 25 (34) 38 (52) 60 (81) 120 (163) 190 (258) 210 (285) 300 (407)
10 (14) 20 (27) 35 (47) 60 (81) 90 (122) 180 (244) 325 (440) 525 (712) 800
(1085)
If trouble occurs that cannot be rectified, contact your local Xylem representative and be
prepared to provide this information:
1. Complete nameplate data of pump and motor
2. Suction and discharge pipe pressure gauge readings
3. Ampere draw of the motor
4. A sketch of the pump hook-up and piping
20 Series 580 Installation, Operation, and Maintenance Manual
Page 23
Page 24
Xylem |’zīləm|
1) The tissue in plants that brings water upward from the roots
2) A leading global water technology company
We're 12,000 people unified in a common purpose: creating
innovative solutions to meet our world's water needs. Developing new
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re-used in the future is central to our work. We move, treat, analyze,
and return water to the environment, and we help people use water
efficiently, in their homes, buildings, factories and farms. In more than
150 countries, we have strong, long-standing relationships with
customers who know us for our powerful combination of leading
product brands and applications expertise, backed by a legacy of
innovation.
For more information on how Xylem can help you, go to xyleminc.com
Xylem Residential &
Commercial
8200 N. Austin Avenue
Morton Grove, IL 60053
USA
Tel. 1-847-983-5805
Fax 1-847-510-0447
www.xyleminc.com/brands/
marlowpump
P2000452_A_1.0_en.US_2010-4_IOM.Series580
Visit our Web site for the latest version of this document and
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The original instruction is in English. All non-English
instructions are translations of the original instruction.
©
2011 Xylem Inc
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